/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/floating_read-15.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 20:02:54,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 20:02:54,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 20:02:54,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 20:02:54,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 20:02:54,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 20:02:54,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 20:02:54,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 20:02:54,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 20:02:54,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 20:02:54,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 20:02:54,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 20:02:54,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 20:02:54,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 20:02:54,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 20:02:54,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 20:02:54,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 20:02:54,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 20:02:54,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 20:02:54,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 20:02:54,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 20:02:54,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 20:02:54,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 20:02:54,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 20:02:54,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-15 20:02:54,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 20:02:54,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 20:02:54,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 20:02:54,906 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 20:02:54,928 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 20:02:54,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 20:02:54,929 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 20:02:54,929 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 20:02:54,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 20:02:54,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 20:02:54,929 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 20:02:54,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 20:02:54,930 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 20:02:54,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 20:02:54,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 20:02:54,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 20:02:54,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 20:02:54,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 20:02:54,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 20:02:54,931 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 20:02:54,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 20:02:54,931 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 20:02:54,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 20:02:54,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 20:02:54,931 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 20:02:54,931 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 20:02:54,931 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 20:02:54,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:02:54,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 20:02:54,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 20:02:54,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 20:02:54,933 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 20:02:54,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 20:02:54,933 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 20:02:54,933 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 20:02:54,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 20:02:54,933 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 20:02:55,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 20:02:55,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 20:02:55,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 20:02:55,179 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 20:02:55,179 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 20:02:55,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/floating_read-15.i [2022-03-15 20:02:55,244 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f93e3d8a/ee7665d24b654535b01a420b5f6bceb3/FLAG259320bc7 [2022-03-15 20:02:55,626 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 20:02:55,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/floating_read-15.i [2022-03-15 20:02:55,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f93e3d8a/ee7665d24b654535b01a420b5f6bceb3/FLAG259320bc7 [2022-03-15 20:02:55,977 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f93e3d8a/ee7665d24b654535b01a420b5f6bceb3 [2022-03-15 20:02:55,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 20:02:55,979 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 20:02:55,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 20:02:55,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 20:02:55,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 20:02:55,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 08:02:55" (1/1) ... [2022-03-15 20:02:55,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b6c2ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:55, skipping insertion in model container [2022-03-15 20:02:55,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 08:02:55" (1/1) ... [2022-03-15 20:02:56,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 20:02:56,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 20:02:56,299 WARN L1545 CHandler]: Possible shadowing of function thread [2022-03-15 20:02:56,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/floating_read-15.i[31197,31210] [2022-03-15 20:02:56,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 20:02:56,313 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 20:02:56,332 WARN L1545 CHandler]: Possible shadowing of function thread [2022-03-15 20:02:56,334 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/floating_read-15.i[31197,31210] [2022-03-15 20:02:56,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 20:02:56,358 INFO L208 MainTranslator]: Completed translation [2022-03-15 20:02:56,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:56 WrapperNode [2022-03-15 20:02:56,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 20:02:56,359 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 20:02:56,359 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 20:02:56,359 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 20:02:56,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:56" (1/1) ... [2022-03-15 20:02:56,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:56" (1/1) ... [2022-03-15 20:02:56,390 INFO L137 Inliner]: procedures = 162, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2022-03-15 20:02:56,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 20:02:56,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 20:02:56,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 20:02:56,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 20:02:56,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:56" (1/1) ... [2022-03-15 20:02:56,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:56" (1/1) ... [2022-03-15 20:02:56,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:56" (1/1) ... [2022-03-15 20:02:56,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:56" (1/1) ... [2022-03-15 20:02:56,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:56" (1/1) ... [2022-03-15 20:02:56,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:56" (1/1) ... [2022-03-15 20:02:56,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:56" (1/1) ... [2022-03-15 20:02:56,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 20:02:56,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 20:02:56,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 20:02:56,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 20:02:56,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:56" (1/1) ... [2022-03-15 20:02:56,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:02:56,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:02:56,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 20:02:56,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 20:02:56,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 20:02:56,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 20:02:56,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 20:02:56,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 20:02:56,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 20:02:56,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 20:02:56,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 20:02:56,525 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-03-15 20:02:56,525 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-03-15 20:02:56,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 20:02:56,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 20:02:56,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 20:02:56,526 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 20:02:56,620 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 20:02:56,621 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 20:02:56,762 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 20:02:56,766 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 20:02:56,766 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-03-15 20:02:56,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:02:56 BoogieIcfgContainer [2022-03-15 20:02:56,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 20:02:56,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 20:02:56,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 20:02:56,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 20:02:56,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 08:02:55" (1/3) ... [2022-03-15 20:02:56,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a650e14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 08:02:56, skipping insertion in model container [2022-03-15 20:02:56,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:56" (2/3) ... [2022-03-15 20:02:56,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a650e14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 08:02:56, skipping insertion in model container [2022-03-15 20:02:56,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:02:56" (3/3) ... [2022-03-15 20:02:56,779 INFO L111 eAbstractionObserver]: Analyzing ICFG floating_read-15.i [2022-03-15 20:02:56,782 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 20:02:56,782 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 20:02:56,782 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 20:02:56,782 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 20:02:56,827 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,827 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,827 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,827 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,827 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,828 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,828 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,828 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,828 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,828 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,828 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,828 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,828 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,828 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,829 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,829 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,829 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,829 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,829 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,829 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,831 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,831 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,831 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,832 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,832 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:56,834 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-15 20:02:56,874 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:02:56,878 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:02:56,878 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-15 20:02:56,888 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:02:56,893 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 59 transitions, 126 flow [2022-03-15 20:02:56,895 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 59 transitions, 126 flow [2022-03-15 20:02:56,896 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 59 transitions, 126 flow [2022-03-15 20:02:56,932 INFO L129 PetriNetUnfolder]: 7/81 cut-off events. [2022-03-15 20:02:56,933 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-03-15 20:02:56,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 81 events. 7/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 104 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 42. Up to 4 conditions per place. [2022-03-15 20:02:56,936 INFO L116 LiptonReduction]: Number of co-enabled transitions 280 [2022-03-15 20:02:58,108 INFO L131 LiptonReduction]: Checked pairs total: 352 [2022-03-15 20:02:58,108 INFO L133 LiptonReduction]: Total number of compositions: 52 [2022-03-15 20:02:58,115 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 14 places, 12 transitions, 32 flow [2022-03-15 20:02:58,122 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:58,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:58,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-03-15 20:02:58,127 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:02:58,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2022-03-15 20:02:58,127 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:02:58,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:02:58,130 INFO L85 PathProgramCache]: Analyzing trace with hash 7338, now seen corresponding path program 1 times [2022-03-15 20:02:58,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:02:58,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931683708] [2022-03-15 20:02:58,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:02:58,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:02:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:02:58,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:02:58,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:02:58,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931683708] [2022-03-15 20:02:58,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931683708] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:02:58,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:02:58,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:02:58,245 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1287053958] [2022-03-15 20:02:58,246 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:02:58,247 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:02:58,252 INFO L252 McrAutomatonBuilder]: Finished intersection with 3 states and 2 transitions. [2022-03-15 20:02:58,253 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:02:58,254 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:02:58,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:02:58,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:02:58,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:02:58,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:02:58,275 INFO L87 Difference]: Start difference. First operand has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:58,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:02:58,293 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2022-03-15 20:02:58,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:02:58,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-03-15 20:02:58,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:02:58,298 INFO L225 Difference]: With dead ends: 12 [2022-03-15 20:02:58,298 INFO L226 Difference]: Without dead ends: 12 [2022-03-15 20:02:58,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:02:58,302 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:02:58,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:02:58,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-03-15 20:02:58,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-03-15 20:02:58,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:58,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2022-03-15 20:02:58,322 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 2 [2022-03-15 20:02:58,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:02:58,322 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2022-03-15 20:02:58,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:58,323 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-03-15 20:02:58,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-03-15 20:02:58,324 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:02:58,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-03-15 20:02:58,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 20:02:58,330 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:02:58,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:02:58,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1792867688, now seen corresponding path program 1 times [2022-03-15 20:02:58,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:02:58,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760545941] [2022-03-15 20:02:58,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:02:58,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:02:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:02:58,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:02:58,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:02:58,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760545941] [2022-03-15 20:02:58,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760545941] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:02:58,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215655296] [2022-03-15 20:02:58,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:02:58,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:02:58,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:02:58,412 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:02:58,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 20:02:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:02:58,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-15 20:02:58,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:02:58,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:02:58,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:02:58,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:02:58,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215655296] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:02:58,583 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:02:58,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-03-15 20:02:58,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2034657118] [2022-03-15 20:02:58,584 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:02:58,585 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:02:58,586 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 8 transitions. [2022-03-15 20:02:58,586 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:02:58,592 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [135#(<= |ULTIMATE.start_main_~i~0#1| 1)] [2022-03-15 20:02:58,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 20:02:58,593 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:02:58,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 20:02:58,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-03-15 20:02:58,594 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:58,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:02:58,609 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2022-03-15 20:02:58,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 20:02:58,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-03-15 20:02:58,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:02:58,610 INFO L225 Difference]: With dead ends: 11 [2022-03-15 20:02:58,610 INFO L226 Difference]: Without dead ends: 11 [2022-03-15 20:02:58,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-03-15 20:02:58,611 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:02:58,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 3 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:02:58,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-03-15 20:02:58,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-03-15 20:02:58,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:58,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2022-03-15 20:02:58,613 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 6 [2022-03-15 20:02:58,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:02:58,613 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-03-15 20:02:58,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:58,613 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-03-15 20:02:58,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-03-15 20:02:58,614 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:02:58,614 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-03-15 20:02:58,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-15 20:02:58,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:02:58,830 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:02:58,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:02:58,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1792867688, now seen corresponding path program 1 times [2022-03-15 20:02:58,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:02:58,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290357946] [2022-03-15 20:02:58,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:02:58,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:02:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:02:58,864 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 20:02:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:02:58,894 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 20:02:58,894 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 20:02:58,894 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-03-15 20:02:58,899 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-03-15 20:02:58,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 20:02:58,900 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-03-15 20:02:58,901 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-15 20:02:58,901 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-03-15 20:02:58,924 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,925 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,925 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,925 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,925 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,925 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,925 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,925 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,925 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,925 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,925 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,926 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,926 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,926 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,926 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,926 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,926 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,926 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,926 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,926 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,927 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,927 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,927 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,927 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,927 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,927 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,927 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,927 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,927 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,927 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,927 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,928 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,928 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,928 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,928 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,928 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,928 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,928 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,928 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,928 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,929 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,929 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,929 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,929 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,929 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,929 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,929 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,930 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,930 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,930 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:58,931 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-15 20:02:58,932 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:02:58,932 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:02:58,932 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-15 20:02:58,933 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:02:58,934 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 66 transitions, 150 flow [2022-03-15 20:02:58,934 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 66 transitions, 150 flow [2022-03-15 20:02:58,934 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 66 transitions, 150 flow [2022-03-15 20:02:58,960 INFO L129 PetriNetUnfolder]: 13/135 cut-off events. [2022-03-15 20:02:58,960 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-03-15 20:02:58,961 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 135 events. 13/135 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 228 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 83. Up to 8 conditions per place. [2022-03-15 20:02:58,962 INFO L116 LiptonReduction]: Number of co-enabled transitions 720 [2022-03-15 20:02:59,956 INFO L131 LiptonReduction]: Checked pairs total: 917 [2022-03-15 20:02:59,956 INFO L133 LiptonReduction]: Total number of compositions: 54 [2022-03-15 20:02:59,959 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 20 places, 17 transitions, 52 flow [2022-03-15 20:02:59,967 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 38 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 37 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:59,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 37 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:59,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-03-15 20:02:59,968 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:02:59,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2022-03-15 20:02:59,968 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:02:59,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:02:59,969 INFO L85 PathProgramCache]: Analyzing trace with hash 11412, now seen corresponding path program 1 times [2022-03-15 20:02:59,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:02:59,973 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573159869] [2022-03-15 20:02:59,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:02:59,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:02:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:00,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:00,003 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:00,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573159869] [2022-03-15 20:03:00,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573159869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:03:00,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:03:00,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:03:00,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1149954295] [2022-03-15 20:03:00,004 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:00,004 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:00,005 INFO L252 McrAutomatonBuilder]: Finished intersection with 3 states and 2 transitions. [2022-03-15 20:03:00,005 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:00,005 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:00,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:03:00,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:00,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:03:00,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:00,006 INFO L87 Difference]: Start difference. First operand has 38 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 37 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:00,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:00,021 INFO L93 Difference]: Finished difference Result 37 states and 62 transitions. [2022-03-15 20:03:00,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:03:00,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-03-15 20:03:00,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:00,024 INFO L225 Difference]: With dead ends: 37 [2022-03-15 20:03:00,025 INFO L226 Difference]: Without dead ends: 37 [2022-03-15 20:03:00,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:00,027 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:00,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:00,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-03-15 20:03:00,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-03-15 20:03:00,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 34 states have (on average 1.8235294117647058) internal successors, (62), 36 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:00,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 62 transitions. [2022-03-15 20:03:00,036 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 62 transitions. Word has length 2 [2022-03-15 20:03:00,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:00,037 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 62 transitions. [2022-03-15 20:03:00,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:00,037 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 62 transitions. [2022-03-15 20:03:00,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-03-15 20:03:00,037 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:00,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-03-15 20:03:00,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 20:03:00,037 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:00,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:00,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1959432682, now seen corresponding path program 1 times [2022-03-15 20:03:00,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:00,039 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206245393] [2022-03-15 20:03:00,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:00,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:00,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 20:03:00,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:00,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206245393] [2022-03-15 20:03:00,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206245393] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:03:00,085 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:03:00,085 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:03:00,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [743647816] [2022-03-15 20:03:00,086 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:00,086 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:00,087 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2022-03-15 20:03:00,087 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:00,087 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:00,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:03:00,088 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:00,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:03:00,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:00,088 INFO L87 Difference]: Start difference. First operand 37 states and 62 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:00,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:00,105 INFO L93 Difference]: Finished difference Result 35 states and 57 transitions. [2022-03-15 20:03:00,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:03:00,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-03-15 20:03:00,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:00,106 INFO L225 Difference]: With dead ends: 35 [2022-03-15 20:03:00,106 INFO L226 Difference]: Without dead ends: 35 [2022-03-15 20:03:00,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:00,107 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:00,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:00,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-03-15 20:03:00,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-03-15 20:03:00,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.78125) internal successors, (57), 34 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:00,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 57 transitions. [2022-03-15 20:03:00,111 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 57 transitions. Word has length 6 [2022-03-15 20:03:00,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:00,111 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 57 transitions. [2022-03-15 20:03:00,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:00,111 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 57 transitions. [2022-03-15 20:03:00,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-03-15 20:03:00,112 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:00,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:00,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 20:03:00,133 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:00,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:00,133 INFO L85 PathProgramCache]: Analyzing trace with hash 614783609, now seen corresponding path program 1 times [2022-03-15 20:03:00,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:00,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095360062] [2022-03-15 20:03:00,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:00,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:00,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:00,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:00,154 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:00,154 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095360062] [2022-03-15 20:03:00,154 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095360062] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:00,154 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521925420] [2022-03-15 20:03:00,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:00,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:00,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:00,155 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:00,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 20:03:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:00,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:03:00,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:00,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:00,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:00,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:00,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521925420] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:00,262 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:00,262 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2022-03-15 20:03:00,262 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [880934653] [2022-03-15 20:03:00,262 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:00,263 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:00,264 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 11 transitions. [2022-03-15 20:03:00,264 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:00,280 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:00,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 20:03:00,280 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:00,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 20:03:00,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-15 20:03:00,281 INFO L87 Difference]: Start difference. First operand 35 states and 57 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:00,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:00,295 INFO L93 Difference]: Finished difference Result 34 states and 56 transitions. [2022-03-15 20:03:00,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 20:03:00,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-03-15 20:03:00,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:00,295 INFO L225 Difference]: With dead ends: 34 [2022-03-15 20:03:00,296 INFO L226 Difference]: Without dead ends: 34 [2022-03-15 20:03:00,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-15 20:03:00,296 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:00,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 5 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:00,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-03-15 20:03:00,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-03-15 20:03:00,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 32 states have (on average 1.75) internal successors, (56), 33 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:00,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 56 transitions. [2022-03-15 20:03:00,299 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 56 transitions. Word has length 7 [2022-03-15 20:03:00,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:00,299 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 56 transitions. [2022-03-15 20:03:00,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:00,299 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2022-03-15 20:03:00,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:03:00,300 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:00,300 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:03:00,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:00,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-03-15 20:03:00,516 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:00,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:00,516 INFO L85 PathProgramCache]: Analyzing trace with hash 971782574, now seen corresponding path program 1 times [2022-03-15 20:03:00,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:00,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875757384] [2022-03-15 20:03:00,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:00,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:00,552 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:00,552 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:00,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875757384] [2022-03-15 20:03:00,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875757384] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:00,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906973958] [2022-03-15 20:03:00,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:00,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:00,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:00,553 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:00,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-15 20:03:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:00,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:03:00,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:00,633 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:00,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:00,677 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:00,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906973958] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:00,678 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:00,678 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2022-03-15 20:03:00,678 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [750150470] [2022-03-15 20:03:00,678 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:00,679 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:00,681 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 23 transitions. [2022-03-15 20:03:00,681 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:00,745 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [585#(<= (+ |threadThread1of2ForFork0_#in~arg.base| |threadThread1of2ForFork0_#in~arg.offset|) 1)] [2022-03-15 20:03:00,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:03:00,746 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:00,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:03:00,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-15 20:03:00,747 INFO L87 Difference]: Start difference. First operand 34 states and 56 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:00,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:00,787 INFO L93 Difference]: Finished difference Result 39 states and 58 transitions. [2022-03-15 20:03:00,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:03:00,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:03:00,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:00,789 INFO L225 Difference]: With dead ends: 39 [2022-03-15 20:03:00,789 INFO L226 Difference]: Without dead ends: 39 [2022-03-15 20:03:00,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:00,791 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:00,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 6 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:00,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-03-15 20:03:00,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2022-03-15 20:03:00,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:00,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2022-03-15 20:03:00,798 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 57 transitions. Word has length 11 [2022-03-15 20:03:00,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:00,798 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 57 transitions. [2022-03-15 20:03:00,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:00,798 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions. [2022-03-15 20:03:00,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:03:00,799 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:00,799 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:03:00,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:01,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:01,018 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:01,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:01,019 INFO L85 PathProgramCache]: Analyzing trace with hash 174122691, now seen corresponding path program 1 times [2022-03-15 20:03:01,020 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:01,020 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831091862] [2022-03-15 20:03:01,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:01,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:01,065 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:01,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:01,066 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831091862] [2022-03-15 20:03:01,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831091862] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:01,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071363281] [2022-03-15 20:03:01,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:01,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:01,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:01,070 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:01,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-15 20:03:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:01,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:01,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:01,156 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:01,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:01,199 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:01,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071363281] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:01,200 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:01,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 10 [2022-03-15 20:03:01,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [695818654] [2022-03-15 20:03:01,200 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:01,200 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:01,204 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 15 transitions. [2022-03-15 20:03:01,204 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:01,214 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:01,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 20:03:01,215 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:01,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 20:03:01,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-15 20:03:01,215 INFO L87 Difference]: Start difference. First operand 36 states and 57 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:01,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:01,229 INFO L93 Difference]: Finished difference Result 34 states and 54 transitions. [2022-03-15 20:03:01,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 20:03:01,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:03:01,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:01,231 INFO L225 Difference]: With dead ends: 34 [2022-03-15 20:03:01,231 INFO L226 Difference]: Without dead ends: 34 [2022-03-15 20:03:01,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-15 20:03:01,233 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:01,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 5 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:01,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-03-15 20:03:01,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2022-03-15 20:03:01,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.7) internal successors, (51), 30 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:01,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2022-03-15 20:03:01,240 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 11 [2022-03-15 20:03:01,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:01,240 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2022-03-15 20:03:01,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:01,240 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2022-03-15 20:03:01,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:03:01,241 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:01,241 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-03-15 20:03:01,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:01,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:01,455 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:01,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:01,456 INFO L85 PathProgramCache]: Analyzing trace with hash 172180620, now seen corresponding path program 1 times [2022-03-15 20:03:01,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:01,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662273274] [2022-03-15 20:03:01,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:01,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:03:01,470 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 20:03:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:03:01,476 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 20:03:01,476 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 20:03:01,477 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-03-15 20:03:01,477 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-03-15 20:03:01,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 20:03:01,477 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-03-15 20:03:01,477 WARN L235 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-15 20:03:01,477 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-03-15 20:03:01,482 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,482 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,482 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,482 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,482 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,482 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,482 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,482 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,482 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,482 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,482 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,482 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,482 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,483 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,483 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,483 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,483 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,483 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,483 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,483 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,483 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,483 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,483 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,483 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,483 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,483 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,483 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,484 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,484 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,484 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,484 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,484 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,484 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,484 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,484 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,484 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,484 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,484 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,484 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,484 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,484 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,484 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,485 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,485 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,485 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,485 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,485 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,485 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,485 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,485 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,485 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,485 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,485 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,485 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,485 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,485 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,485 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,486 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,486 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,486 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,486 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,486 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,486 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,486 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,486 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,486 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,487 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,487 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,487 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,487 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,487 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,487 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,487 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,487 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,487 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:01,488 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-15 20:03:01,489 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:03:01,489 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:03:01,489 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-15 20:03:01,490 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:03:01,490 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 73 transitions, 176 flow [2022-03-15 20:03:01,490 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 73 transitions, 176 flow [2022-03-15 20:03:01,490 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 73 transitions, 176 flow [2022-03-15 20:03:01,508 INFO L129 PetriNetUnfolder]: 24/222 cut-off events. [2022-03-15 20:03:01,508 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-03-15 20:03:01,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 222 events. 24/222 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 505 event pairs, 1 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 143. Up to 16 conditions per place. [2022-03-15 20:03:01,510 INFO L116 LiptonReduction]: Number of co-enabled transitions 1200 [2022-03-15 20:03:02,320 INFO L131 LiptonReduction]: Checked pairs total: 1580 [2022-03-15 20:03:02,321 INFO L133 LiptonReduction]: Total number of compositions: 58 [2022-03-15 20:03:02,321 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 20 transitions, 70 flow [2022-03-15 20:03:02,326 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 82 states, 77 states have (on average 2.220779220779221) internal successors, (171), 81 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:02,326 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 77 states have (on average 2.220779220779221) internal successors, (171), 81 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:02,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-03-15 20:03:02,326 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:02,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2022-03-15 20:03:02,326 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:02,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:02,326 INFO L85 PathProgramCache]: Analyzing trace with hash 15819, now seen corresponding path program 1 times [2022-03-15 20:03:02,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:02,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528787934] [2022-03-15 20:03:02,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:02,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:02,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:02,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:02,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528787934] [2022-03-15 20:03:02,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528787934] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:03:02,341 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:03:02,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:03:02,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [954760311] [2022-03-15 20:03:02,341 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:02,341 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:02,341 INFO L252 McrAutomatonBuilder]: Finished intersection with 3 states and 2 transitions. [2022-03-15 20:03:02,341 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:02,341 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:02,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:03:02,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:02,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:03:02,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:02,342 INFO L87 Difference]: Start difference. First operand has 82 states, 77 states have (on average 2.220779220779221) internal successors, (171), 81 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:02,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:02,353 INFO L93 Difference]: Finished difference Result 81 states and 170 transitions. [2022-03-15 20:03:02,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:03:02,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-03-15 20:03:02,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:02,355 INFO L225 Difference]: With dead ends: 81 [2022-03-15 20:03:02,355 INFO L226 Difference]: Without dead ends: 81 [2022-03-15 20:03:02,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:02,355 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:02,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:02,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-03-15 20:03:02,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2022-03-15 20:03:02,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 77 states have (on average 2.207792207792208) internal successors, (170), 80 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:02,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 170 transitions. [2022-03-15 20:03:02,359 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 170 transitions. Word has length 2 [2022-03-15 20:03:02,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:02,359 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 170 transitions. [2022-03-15 20:03:02,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:02,359 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 170 transitions. [2022-03-15 20:03:02,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-03-15 20:03:02,359 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:02,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-03-15 20:03:02,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 20:03:02,359 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:02,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:02,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1743099183, now seen corresponding path program 1 times [2022-03-15 20:03:02,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:02,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16956820] [2022-03-15 20:03:02,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:02,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:02,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 20:03:02,382 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:02,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16956820] [2022-03-15 20:03:02,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16956820] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:03:02,382 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:03:02,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:03:02,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2023712833] [2022-03-15 20:03:02,382 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:02,382 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:02,382 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2022-03-15 20:03:02,382 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:02,383 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:02,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:03:02,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:02,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:03:02,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:02,383 INFO L87 Difference]: Start difference. First operand 81 states and 170 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:02,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:02,394 INFO L93 Difference]: Finished difference Result 78 states and 161 transitions. [2022-03-15 20:03:02,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:03:02,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-03-15 20:03:02,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:02,395 INFO L225 Difference]: With dead ends: 78 [2022-03-15 20:03:02,395 INFO L226 Difference]: Without dead ends: 78 [2022-03-15 20:03:02,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:02,396 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:02,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 4 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:02,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-03-15 20:03:02,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-03-15 20:03:02,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 2.175675675675676) internal successors, (161), 77 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:02,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 161 transitions. [2022-03-15 20:03:02,399 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 161 transitions. Word has length 6 [2022-03-15 20:03:02,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:02,399 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 161 transitions. [2022-03-15 20:03:02,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:02,399 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 161 transitions. [2022-03-15 20:03:02,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-03-15 20:03:02,399 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:02,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:02,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 20:03:02,400 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:02,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:02,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1796427351, now seen corresponding path program 1 times [2022-03-15 20:03:02,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:02,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032553985] [2022-03-15 20:03:02,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:02,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:02,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:02,429 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:02,429 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032553985] [2022-03-15 20:03:02,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032553985] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:02,429 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320639901] [2022-03-15 20:03:02,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:02,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:02,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:02,439 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:02,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-15 20:03:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:02,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:03:02,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:02,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:02,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:02,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:02,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320639901] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:02,532 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:02,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2022-03-15 20:03:02,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2093458659] [2022-03-15 20:03:02,532 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:02,532 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:02,533 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 11 transitions. [2022-03-15 20:03:02,533 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:02,543 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:02,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 20:03:02,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:02,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 20:03:02,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-15 20:03:02,544 INFO L87 Difference]: Start difference. First operand 78 states and 161 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:02,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:02,561 INFO L93 Difference]: Finished difference Result 77 states and 160 transitions. [2022-03-15 20:03:02,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 20:03:02,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-03-15 20:03:02,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:02,562 INFO L225 Difference]: With dead ends: 77 [2022-03-15 20:03:02,562 INFO L226 Difference]: Without dead ends: 77 [2022-03-15 20:03:02,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-15 20:03:02,563 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:02,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 5 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:02,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-03-15 20:03:02,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-03-15 20:03:02,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 74 states have (on average 2.1621621621621623) internal successors, (160), 76 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:02,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 160 transitions. [2022-03-15 20:03:02,565 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 160 transitions. Word has length 7 [2022-03-15 20:03:02,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:02,566 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 160 transitions. [2022-03-15 20:03:02,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:02,566 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 160 transitions. [2022-03-15 20:03:02,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:03:02,566 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:02,566 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:03:02,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:02,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-15 20:03:02,782 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:02,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:02,783 INFO L85 PathProgramCache]: Analyzing trace with hash 127491692, now seen corresponding path program 1 times [2022-03-15 20:03:02,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:02,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803844268] [2022-03-15 20:03:02,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:02,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:02,808 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:02,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:02,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803844268] [2022-03-15 20:03:02,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803844268] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:02,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766981919] [2022-03-15 20:03:02,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:02,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:02,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:02,810 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:02,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-15 20:03:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:02,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:03:02,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:02,883 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:02,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:02,913 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:02,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766981919] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:02,913 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:02,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2022-03-15 20:03:02,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [890363564] [2022-03-15 20:03:02,914 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:02,914 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:02,915 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 23 transitions. [2022-03-15 20:03:02,915 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:02,950 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1071#(<= (+ |threadThread1of3ForFork0_#in~arg.base| |threadThread1of3ForFork0_#in~arg.offset|) 1)] [2022-03-15 20:03:02,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:03:02,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:02,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:03:02,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-15 20:03:02,951 INFO L87 Difference]: Start difference. First operand 77 states and 160 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:02,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:02,981 INFO L93 Difference]: Finished difference Result 98 states and 183 transitions. [2022-03-15 20:03:02,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:03:02,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:03:02,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:02,982 INFO L225 Difference]: With dead ends: 98 [2022-03-15 20:03:02,982 INFO L226 Difference]: Without dead ends: 98 [2022-03-15 20:03:02,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:02,982 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 33 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:02,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 6 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:02,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-03-15 20:03:02,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 88. [2022-03-15 20:03:02,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 85 states have (on average 2.0470588235294116) internal successors, (174), 87 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:02,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 174 transitions. [2022-03-15 20:03:02,985 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 174 transitions. Word has length 11 [2022-03-15 20:03:02,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:02,986 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 174 transitions. [2022-03-15 20:03:02,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:02,986 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 174 transitions. [2022-03-15 20:03:02,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:03:02,986 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:02,986 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:03:03,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:03,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:03,203 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:03,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:03,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1954199073, now seen corresponding path program 1 times [2022-03-15 20:03:03,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:03,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544142755] [2022-03-15 20:03:03,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:03,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:03,224 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:03,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:03,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544142755] [2022-03-15 20:03:03,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544142755] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:03,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437642842] [2022-03-15 20:03:03,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:03,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:03,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:03,239 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:03,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-15 20:03:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:03,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:03,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:03,329 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:03,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:03,364 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:03,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437642842] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:03,364 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:03,364 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 10 [2022-03-15 20:03:03,364 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [531638731] [2022-03-15 20:03:03,364 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:03,365 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:03,366 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 15 transitions. [2022-03-15 20:03:03,366 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:03,374 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:03,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 20:03:03,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:03,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 20:03:03,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-15 20:03:03,374 INFO L87 Difference]: Start difference. First operand 88 states and 174 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:03,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:03,394 INFO L93 Difference]: Finished difference Result 86 states and 171 transitions. [2022-03-15 20:03:03,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 20:03:03,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:03:03,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:03,395 INFO L225 Difference]: With dead ends: 86 [2022-03-15 20:03:03,395 INFO L226 Difference]: Without dead ends: 86 [2022-03-15 20:03:03,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-15 20:03:03,395 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 14 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:03,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 6 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:03,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-03-15 20:03:03,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-03-15 20:03:03,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 84 states have (on average 2.0357142857142856) internal successors, (171), 85 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:03,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 171 transitions. [2022-03-15 20:03:03,398 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 171 transitions. Word has length 11 [2022-03-15 20:03:03,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:03,398 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 171 transitions. [2022-03-15 20:03:03,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:03,398 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 171 transitions. [2022-03-15 20:03:03,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-15 20:03:03,399 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:03,399 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:03,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:03,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:03,616 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:03,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:03,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1356801213, now seen corresponding path program 1 times [2022-03-15 20:03:03,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:03,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467995697] [2022-03-15 20:03:03,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:03,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:03,643 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:03,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:03,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467995697] [2022-03-15 20:03:03,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467995697] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:03,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168552056] [2022-03-15 20:03:03,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:03,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:03,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:03,645 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:03,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-15 20:03:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:03,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:03,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:03,731 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:03,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:03,798 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:03,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168552056] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:03,798 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:03,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2022-03-15 20:03:03,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1277361377] [2022-03-15 20:03:03,798 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:03,799 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:03,801 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 27 transitions. [2022-03-15 20:03:03,801 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:03,833 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:03,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:03:03,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:03,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:03:03,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 20:03:03,834 INFO L87 Difference]: Start difference. First operand 86 states and 171 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:03,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:03,857 INFO L93 Difference]: Finished difference Result 80 states and 158 transitions. [2022-03-15 20:03:03,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:03:03,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-03-15 20:03:03,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:03,858 INFO L225 Difference]: With dead ends: 80 [2022-03-15 20:03:03,858 INFO L226 Difference]: Without dead ends: 80 [2022-03-15 20:03:03,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 20:03:03,858 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 23 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:03,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 7 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:03,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-03-15 20:03:03,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 67. [2022-03-15 20:03:03,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 2.106060606060606) internal successors, (139), 66 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:03,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 139 transitions. [2022-03-15 20:03:03,861 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 139 transitions. Word has length 15 [2022-03-15 20:03:03,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:03,861 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 139 transitions. [2022-03-15 20:03:03,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:03,861 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 139 transitions. [2022-03-15 20:03:03,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-15 20:03:03,862 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:03,862 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2022-03-15 20:03:03,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:04,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-03-15 20:03:04,079 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:04,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:04,079 INFO L85 PathProgramCache]: Analyzing trace with hash 344461654, now seen corresponding path program 1 times [2022-03-15 20:03:04,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:04,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876380493] [2022-03-15 20:03:04,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:04,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:03:04,089 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 20:03:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:03:04,097 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 20:03:04,097 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 20:03:04,097 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-03-15 20:03:04,097 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-03-15 20:03:04,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-15 20:03:04,097 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:04,098 WARN L235 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-15 20:03:04,098 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-03-15 20:03:04,103 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,103 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,103 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,103 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,103 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,103 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,104 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,104 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,104 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,104 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,104 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,104 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,104 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,104 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,104 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,104 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,104 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,104 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,104 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,104 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,105 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,106 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,106 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,106 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,106 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,106 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,106 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,106 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,106 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,106 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,106 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,106 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,106 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,106 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,106 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,106 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,106 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,106 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,106 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,107 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,107 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,107 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,107 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,107 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,107 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,107 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,107 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,107 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,107 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,107 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,107 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,107 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,107 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,107 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,107 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,107 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,107 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,108 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,108 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,108 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,108 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,108 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,108 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,108 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,108 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,108 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,108 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,108 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,109 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,109 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,109 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,109 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,109 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,109 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,109 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,109 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,109 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,109 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,109 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,109 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,109 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,110 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:04,111 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-15 20:03:04,111 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:03:04,112 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:03:04,112 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-15 20:03:04,112 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:03:04,112 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 80 transitions, 204 flow [2022-03-15 20:03:04,113 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 80 transitions, 204 flow [2022-03-15 20:03:04,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 204 flow [2022-03-15 20:03:04,140 INFO L129 PetriNetUnfolder]: 47/377 cut-off events. [2022-03-15 20:03:04,140 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-03-15 20:03:04,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 377 events. 47/377 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1190 event pairs, 6 based on Foata normal form. 0/325 useless extension candidates. Maximal degree in co-relation 242. Up to 32 conditions per place. [2022-03-15 20:03:04,144 INFO L116 LiptonReduction]: Number of co-enabled transitions 1760 [2022-03-15 20:03:05,220 INFO L131 LiptonReduction]: Checked pairs total: 2638 [2022-03-15 20:03:05,220 INFO L133 LiptonReduction]: Total number of compositions: 62 [2022-03-15 20:03:05,221 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 23 transitions, 90 flow [2022-03-15 20:03:05,229 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 170 states, 164 states have (on average 2.6280487804878048) internal successors, (431), 169 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:05,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 164 states have (on average 2.6280487804878048) internal successors, (431), 169 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:05,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-03-15 20:03:05,230 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:05,230 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2022-03-15 20:03:05,230 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:05,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:05,230 INFO L85 PathProgramCache]: Analyzing trace with hash 20583, now seen corresponding path program 1 times [2022-03-15 20:03:05,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:05,240 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424873307] [2022-03-15 20:03:05,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:05,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:05,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:05,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:05,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424873307] [2022-03-15 20:03:05,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424873307] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:03:05,248 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:03:05,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:03:05,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [949076291] [2022-03-15 20:03:05,248 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:05,248 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:05,248 INFO L252 McrAutomatonBuilder]: Finished intersection with 3 states and 2 transitions. [2022-03-15 20:03:05,248 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:05,248 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:05,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:03:05,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:05,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:03:05,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:05,249 INFO L87 Difference]: Start difference. First operand has 170 states, 164 states have (on average 2.6280487804878048) internal successors, (431), 169 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:05,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:05,264 INFO L93 Difference]: Finished difference Result 165 states and 416 transitions. [2022-03-15 20:03:05,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:03:05,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-03-15 20:03:05,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:05,265 INFO L225 Difference]: With dead ends: 165 [2022-03-15 20:03:05,265 INFO L226 Difference]: Without dead ends: 165 [2022-03-15 20:03:05,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:05,266 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:05,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 4 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:05,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-03-15 20:03:05,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-03-15 20:03:05,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 160 states have (on average 2.6) internal successors, (416), 164 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:05,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 416 transitions. [2022-03-15 20:03:05,270 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 416 transitions. Word has length 2 [2022-03-15 20:03:05,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:05,270 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 416 transitions. [2022-03-15 20:03:05,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:05,271 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 416 transitions. [2022-03-15 20:03:05,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-03-15 20:03:05,271 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:05,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:05,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-15 20:03:05,271 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:05,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:05,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1671537524, now seen corresponding path program 1 times [2022-03-15 20:03:05,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:05,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41763069] [2022-03-15 20:03:05,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:05,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:05,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:05,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:05,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:05,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41763069] [2022-03-15 20:03:05,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41763069] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:05,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629894308] [2022-03-15 20:03:05,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:05,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:05,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:05,323 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:05,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-15 20:03:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:05,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:03:05,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:05,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:05,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:05,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:05,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629894308] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:05,430 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:05,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2022-03-15 20:03:05,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1381672136] [2022-03-15 20:03:05,430 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:05,431 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:05,431 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 11 transitions. [2022-03-15 20:03:05,431 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:05,444 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [969#(<= (+ |threadThread1of4ForFork0_#in~arg.base| |threadThread1of4ForFork0_#in~arg.offset|) 1)] [2022-03-15 20:03:05,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:03:05,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:05,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:03:05,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-15 20:03:05,445 INFO L87 Difference]: Start difference. First operand 165 states and 416 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:05,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:05,479 INFO L93 Difference]: Finished difference Result 223 states and 514 transitions. [2022-03-15 20:03:05,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:03:05,480 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-03-15 20:03:05,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:05,481 INFO L225 Difference]: With dead ends: 223 [2022-03-15 20:03:05,481 INFO L226 Difference]: Without dead ends: 223 [2022-03-15 20:03:05,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:05,481 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 31 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:05,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 6 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:05,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-03-15 20:03:05,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 198. [2022-03-15 20:03:05,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 194 states have (on average 2.463917525773196) internal successors, (478), 197 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:05,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 478 transitions. [2022-03-15 20:03:05,486 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 478 transitions. Word has length 7 [2022-03-15 20:03:05,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:05,487 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 478 transitions. [2022-03-15 20:03:05,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:05,487 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 478 transitions. [2022-03-15 20:03:05,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:03:05,487 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:05,487 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:03:05,505 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-03-15 20:03:05,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-03-15 20:03:05,703 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:05,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:05,704 INFO L85 PathProgramCache]: Analyzing trace with hash -555876441, now seen corresponding path program 1 times [2022-03-15 20:03:05,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:05,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274646101] [2022-03-15 20:03:05,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:05,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:05,732 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:05,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:05,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274646101] [2022-03-15 20:03:05,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274646101] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:05,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137917254] [2022-03-15 20:03:05,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:05,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:05,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:05,752 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:05,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-15 20:03:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:05,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:05,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:05,839 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:05,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:05,874 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:05,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137917254] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:05,874 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:05,875 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 10 [2022-03-15 20:03:05,875 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1082286352] [2022-03-15 20:03:05,875 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:05,876 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:05,876 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 15 transitions. [2022-03-15 20:03:05,876 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:05,884 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:05,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 20:03:05,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:05,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 20:03:05,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-15 20:03:05,885 INFO L87 Difference]: Start difference. First operand 198 states and 478 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:05,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:05,906 INFO L93 Difference]: Finished difference Result 196 states and 475 transitions. [2022-03-15 20:03:05,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 20:03:05,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:03:05,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:05,907 INFO L225 Difference]: With dead ends: 196 [2022-03-15 20:03:05,907 INFO L226 Difference]: Without dead ends: 196 [2022-03-15 20:03:05,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-15 20:03:05,908 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 16 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:05,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 6 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:05,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-03-15 20:03:05,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2022-03-15 20:03:05,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 193 states have (on average 2.461139896373057) internal successors, (475), 195 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:05,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 475 transitions. [2022-03-15 20:03:05,913 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 475 transitions. Word has length 11 [2022-03-15 20:03:05,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:05,913 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 475 transitions. [2022-03-15 20:03:05,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:05,913 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 475 transitions. [2022-03-15 20:03:05,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-15 20:03:05,914 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:05,914 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:05,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:06,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:06,132 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:06,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:06,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1015369778, now seen corresponding path program 1 times [2022-03-15 20:03:06,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:06,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683141290] [2022-03-15 20:03:06,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:06,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:06,169 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:06,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:06,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683141290] [2022-03-15 20:03:06,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683141290] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:06,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974689968] [2022-03-15 20:03:06,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:06,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:06,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:06,184 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:06,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-15 20:03:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:06,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:06,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:06,299 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:06,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:06,346 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:06,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974689968] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:06,347 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:06,347 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2022-03-15 20:03:06,347 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1582364803] [2022-03-15 20:03:06,347 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:06,348 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:06,350 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 27 transitions. [2022-03-15 20:03:06,350 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:06,374 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:06,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:03:06,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:06,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:03:06,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 20:03:06,375 INFO L87 Difference]: Start difference. First operand 196 states and 475 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:06,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:06,403 INFO L93 Difference]: Finished difference Result 190 states and 462 transitions. [2022-03-15 20:03:06,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:03:06,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-03-15 20:03:06,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:06,404 INFO L225 Difference]: With dead ends: 190 [2022-03-15 20:03:06,404 INFO L226 Difference]: Without dead ends: 190 [2022-03-15 20:03:06,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 20:03:06,404 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 25 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:06,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 6 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:06,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-03-15 20:03:06,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2022-03-15 20:03:06,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 188 states have (on average 2.4574468085106385) internal successors, (462), 189 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:06,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 462 transitions. [2022-03-15 20:03:06,408 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 462 transitions. Word has length 15 [2022-03-15 20:03:06,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:06,409 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 462 transitions. [2022-03-15 20:03:06,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:06,409 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 462 transitions. [2022-03-15 20:03:06,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 20:03:06,409 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:06,410 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:06,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:06,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:06,626 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:06,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:06,626 INFO L85 PathProgramCache]: Analyzing trace with hash -575940708, now seen corresponding path program 1 times [2022-03-15 20:03:06,627 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:06,627 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74663966] [2022-03-15 20:03:06,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:06,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:06,695 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:06,695 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:06,695 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74663966] [2022-03-15 20:03:06,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74663966] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:06,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518233053] [2022-03-15 20:03:06,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:06,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:06,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:06,697 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:06,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-15 20:03:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:06,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:06,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:06,841 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 20:03:06,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:06,936 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 20:03:06,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518233053] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:06,936 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:06,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 12 [2022-03-15 20:03:06,936 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1596520512] [2022-03-15 20:03:06,936 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:06,937 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:06,941 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 39 transitions. [2022-03-15 20:03:06,941 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:06,998 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:06,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 20:03:06,998 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:06,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 20:03:06,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:06,999 INFO L87 Difference]: Start difference. First operand 190 states and 462 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:07,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:07,027 INFO L93 Difference]: Finished difference Result 176 states and 423 transitions. [2022-03-15 20:03:07,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 20:03:07,027 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-03-15 20:03:07,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:07,029 INFO L225 Difference]: With dead ends: 176 [2022-03-15 20:03:07,029 INFO L226 Difference]: Without dead ends: 176 [2022-03-15 20:03:07,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:07,030 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 30 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:07,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 6 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:07,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-03-15 20:03:07,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 139. [2022-03-15 20:03:07,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 2.5434782608695654) internal successors, (351), 138 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:07,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 351 transitions. [2022-03-15 20:03:07,035 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 351 transitions. Word has length 19 [2022-03-15 20:03:07,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:07,036 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 351 transitions. [2022-03-15 20:03:07,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:07,036 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 351 transitions. [2022-03-15 20:03:07,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 20:03:07,037 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:07,037 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:07,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:07,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-03-15 20:03:07,254 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:07,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:07,255 INFO L85 PathProgramCache]: Analyzing trace with hash 885254433, now seen corresponding path program 1 times [2022-03-15 20:03:07,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:07,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33972260] [2022-03-15 20:03:07,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:07,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:03:07,265 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 20:03:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:03:07,273 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 20:03:07,273 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 20:03:07,273 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-03-15 20:03:07,273 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-03-15 20:03:07,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-15 20:03:07,273 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-03-15 20:03:07,273 WARN L235 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-15 20:03:07,273 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2022-03-15 20:03:07,296 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,296 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,296 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,296 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,296 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,296 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,296 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,296 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,296 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,296 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,297 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,297 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,297 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,297 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,297 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,297 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,297 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,297 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,297 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,297 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,297 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,297 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,297 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,297 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,297 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,297 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,298 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,298 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,298 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,298 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,298 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,298 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,298 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,298 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,298 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,298 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,298 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,298 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,298 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,298 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,298 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,298 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,298 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,298 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,299 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,299 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,299 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,299 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,299 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,299 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,299 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,299 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,299 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,299 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,299 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,299 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,299 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,299 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,299 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,300 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,300 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,300 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,300 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,300 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,300 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,300 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,300 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,300 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,300 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,300 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,300 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,300 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,300 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,300 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,300 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,300 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,301 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,301 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,301 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,301 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,301 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,301 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,301 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,301 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,301 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,301 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,301 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,301 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,301 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,301 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,301 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,301 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,301 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,301 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,302 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,302 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,302 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,302 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,302 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,302 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,302 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,302 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,302 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,302 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,302 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,303 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,303 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,303 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,303 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,303 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,303 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,303 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,303 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,303 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,303 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,304 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,304 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,304 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,304 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,304 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,304 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,304 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,304 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,304 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,304 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:07,306 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-03-15 20:03:07,306 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:03:07,307 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:03:07,307 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-15 20:03:07,307 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:03:07,307 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 87 transitions, 234 flow [2022-03-15 20:03:07,308 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 87 transitions, 234 flow [2022-03-15 20:03:07,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 87 transitions, 234 flow [2022-03-15 20:03:07,362 INFO L129 PetriNetUnfolder]: 98/672 cut-off events. [2022-03-15 20:03:07,362 INFO L130 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2022-03-15 20:03:07,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 783 conditions, 672 events. 98/672 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2784 event pairs, 23 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 422. Up to 80 conditions per place. [2022-03-15 20:03:07,370 INFO L116 LiptonReduction]: Number of co-enabled transitions 2400 [2022-03-15 20:03:08,490 INFO L131 LiptonReduction]: Checked pairs total: 3089 [2022-03-15 20:03:08,490 INFO L133 LiptonReduction]: Total number of compositions: 66 [2022-03-15 20:03:08,491 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 26 transitions, 112 flow [2022-03-15 20:03:08,507 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 346 states, 339 states have (on average 3.0648967551622417) internal successors, (1039), 345 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:08,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 346 states, 339 states have (on average 3.0648967551622417) internal successors, (1039), 345 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:08,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-03-15 20:03:08,509 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:08,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2022-03-15 20:03:08,509 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:08,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:08,510 INFO L85 PathProgramCache]: Analyzing trace with hash 25706, now seen corresponding path program 1 times [2022-03-15 20:03:08,519 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:08,519 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751293492] [2022-03-15 20:03:08,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:08,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:08,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:08,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:08,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751293492] [2022-03-15 20:03:08,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751293492] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:03:08,530 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:03:08,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:03:08,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1007518293] [2022-03-15 20:03:08,530 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:08,531 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:08,531 INFO L252 McrAutomatonBuilder]: Finished intersection with 3 states and 2 transitions. [2022-03-15 20:03:08,531 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:08,531 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:08,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:03:08,531 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:08,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:03:08,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:08,532 INFO L87 Difference]: Start difference. First operand has 346 states, 339 states have (on average 3.0648967551622417) internal successors, (1039), 345 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:08,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:08,550 INFO L93 Difference]: Finished difference Result 345 states and 1038 transitions. [2022-03-15 20:03:08,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:03:08,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-03-15 20:03:08,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:08,552 INFO L225 Difference]: With dead ends: 345 [2022-03-15 20:03:08,552 INFO L226 Difference]: Without dead ends: 345 [2022-03-15 20:03:08,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:08,555 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:08,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:08,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-03-15 20:03:08,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2022-03-15 20:03:08,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 339 states have (on average 3.061946902654867) internal successors, (1038), 344 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:08,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 1038 transitions. [2022-03-15 20:03:08,563 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 1038 transitions. Word has length 2 [2022-03-15 20:03:08,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:08,563 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 1038 transitions. [2022-03-15 20:03:08,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:08,564 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 1038 transitions. [2022-03-15 20:03:08,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-03-15 20:03:08,564 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:08,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-03-15 20:03:08,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-15 20:03:08,564 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:08,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:08,564 INFO L85 PathProgramCache]: Analyzing trace with hash -2000893746, now seen corresponding path program 1 times [2022-03-15 20:03:08,565 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:08,565 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269223714] [2022-03-15 20:03:08,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:08,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:08,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 20:03:08,582 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:08,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269223714] [2022-03-15 20:03:08,582 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269223714] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:03:08,582 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:03:08,582 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:03:08,583 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [374755921] [2022-03-15 20:03:08,583 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:08,584 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:08,584 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2022-03-15 20:03:08,584 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:08,585 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:08,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:03:08,585 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:08,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:03:08,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:08,585 INFO L87 Difference]: Start difference. First operand 345 states and 1038 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:08,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:08,602 INFO L93 Difference]: Finished difference Result 340 states and 1018 transitions. [2022-03-15 20:03:08,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:03:08,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-03-15 20:03:08,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:08,604 INFO L225 Difference]: With dead ends: 340 [2022-03-15 20:03:08,604 INFO L226 Difference]: Without dead ends: 340 [2022-03-15 20:03:08,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:08,605 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:08,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:08,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-03-15 20:03:08,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2022-03-15 20:03:08,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 334 states have (on average 3.0479041916167664) internal successors, (1018), 339 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:08,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 1018 transitions. [2022-03-15 20:03:08,616 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 1018 transitions. Word has length 6 [2022-03-15 20:03:08,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:08,616 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 1018 transitions. [2022-03-15 20:03:08,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:08,617 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 1018 transitions. [2022-03-15 20:03:08,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-03-15 20:03:08,617 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:08,617 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:08,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-15 20:03:08,617 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:08,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:08,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1895477050, now seen corresponding path program 1 times [2022-03-15 20:03:08,618 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:08,618 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164833016] [2022-03-15 20:03:08,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:08,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:08,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:08,632 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:08,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164833016] [2022-03-15 20:03:08,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164833016] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:08,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929128775] [2022-03-15 20:03:08,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:08,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:08,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:08,634 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:08,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-15 20:03:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:08,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:03:08,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:08,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:08,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:08,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:08,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929128775] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:08,748 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:08,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2022-03-15 20:03:08,749 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2099817109] [2022-03-15 20:03:08,749 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:08,749 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:08,749 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 11 transitions. [2022-03-15 20:03:08,749 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:08,758 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:08,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 20:03:08,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:08,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 20:03:08,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-15 20:03:08,758 INFO L87 Difference]: Start difference. First operand 340 states and 1018 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:08,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:08,775 INFO L93 Difference]: Finished difference Result 339 states and 1017 transitions. [2022-03-15 20:03:08,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 20:03:08,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-03-15 20:03:08,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:08,778 INFO L225 Difference]: With dead ends: 339 [2022-03-15 20:03:08,778 INFO L226 Difference]: Without dead ends: 339 [2022-03-15 20:03:08,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-15 20:03:08,779 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:08,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 5 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:08,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-03-15 20:03:08,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2022-03-15 20:03:08,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 334 states have (on average 3.0449101796407185) internal successors, (1017), 338 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:08,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 1017 transitions. [2022-03-15 20:03:08,786 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 1017 transitions. Word has length 7 [2022-03-15 20:03:08,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:08,786 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 1017 transitions. [2022-03-15 20:03:08,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:08,787 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 1017 transitions. [2022-03-15 20:03:08,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:03:08,787 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:08,788 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:03:08,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:09,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-03-15 20:03:09,004 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:09,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:09,005 INFO L85 PathProgramCache]: Analyzing trace with hash -126051447, now seen corresponding path program 1 times [2022-03-15 20:03:09,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:09,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996551628] [2022-03-15 20:03:09,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:09,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:09,040 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:09,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:09,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996551628] [2022-03-15 20:03:09,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996551628] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:09,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493619747] [2022-03-15 20:03:09,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:09,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:09,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:09,060 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:09,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-15 20:03:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:09,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:03:09,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:09,148 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:09,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:09,173 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:09,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493619747] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:09,173 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:09,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2022-03-15 20:03:09,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1173247364] [2022-03-15 20:03:09,173 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:09,174 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:09,174 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 23 transitions. [2022-03-15 20:03:09,175 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:09,204 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3979#(<= (+ |threadThread1of5ForFork0_#in~arg.base| |threadThread1of5ForFork0_#in~arg.offset|) 1)] [2022-03-15 20:03:09,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:03:09,204 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:09,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:03:09,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-15 20:03:09,205 INFO L87 Difference]: Start difference. First operand 339 states and 1017 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:09,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:09,238 INFO L93 Difference]: Finished difference Result 480 states and 1330 transitions. [2022-03-15 20:03:09,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:03:09,239 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:03:09,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:09,241 INFO L225 Difference]: With dead ends: 480 [2022-03-15 20:03:09,241 INFO L226 Difference]: Without dead ends: 480 [2022-03-15 20:03:09,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:09,242 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 51 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:09,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 6 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:09,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-03-15 20:03:09,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 424. [2022-03-15 20:03:09,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 419 states have (on average 2.911694510739857) internal successors, (1220), 423 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:09,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 1220 transitions. [2022-03-15 20:03:09,281 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 1220 transitions. Word has length 11 [2022-03-15 20:03:09,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:09,281 INFO L470 AbstractCegarLoop]: Abstraction has 424 states and 1220 transitions. [2022-03-15 20:03:09,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:09,282 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 1220 transitions. [2022-03-15 20:03:09,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:03:09,282 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:09,282 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:03:09,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:09,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:09,498 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:09,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:09,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1796934433, now seen corresponding path program 1 times [2022-03-15 20:03:09,499 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:09,499 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265710447] [2022-03-15 20:03:09,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:09,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:09,530 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:09,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:09,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265710447] [2022-03-15 20:03:09,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265710447] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:09,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402503952] [2022-03-15 20:03:09,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:09,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:09,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:09,544 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:09,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-03-15 20:03:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:09,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:09,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:09,640 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:09,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:09,668 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:09,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402503952] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:09,668 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:09,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 10 [2022-03-15 20:03:09,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [762365335] [2022-03-15 20:03:09,669 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:09,669 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:09,670 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 15 transitions. [2022-03-15 20:03:09,670 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:09,688 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:09,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 20:03:09,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:09,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 20:03:09,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-15 20:03:09,688 INFO L87 Difference]: Start difference. First operand 424 states and 1220 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:09,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:09,714 INFO L93 Difference]: Finished difference Result 422 states and 1217 transitions. [2022-03-15 20:03:09,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 20:03:09,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:03:09,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:09,716 INFO L225 Difference]: With dead ends: 422 [2022-03-15 20:03:09,716 INFO L226 Difference]: Without dead ends: 422 [2022-03-15 20:03:09,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-15 20:03:09,717 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 15 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:09,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 7 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:09,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-03-15 20:03:09,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2022-03-15 20:03:09,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 418 states have (on average 2.911483253588517) internal successors, (1217), 421 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:09,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 1217 transitions. [2022-03-15 20:03:09,724 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 1217 transitions. Word has length 11 [2022-03-15 20:03:09,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:09,725 INFO L470 AbstractCegarLoop]: Abstraction has 422 states and 1217 transitions. [2022-03-15 20:03:09,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:09,725 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 1217 transitions. [2022-03-15 20:03:09,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-15 20:03:09,725 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:09,725 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:09,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:09,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-03-15 20:03:09,941 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:09,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:09,942 INFO L85 PathProgramCache]: Analyzing trace with hash 69739715, now seen corresponding path program 1 times [2022-03-15 20:03:09,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:09,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104360667] [2022-03-15 20:03:09,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:09,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:09,983 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:09,983 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:09,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104360667] [2022-03-15 20:03:09,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104360667] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:09,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112253425] [2022-03-15 20:03:09,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:09,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:09,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:10,000 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:10,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-03-15 20:03:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:10,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:10,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:10,104 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:10,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:10,159 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:10,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112253425] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:10,159 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:10,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2022-03-15 20:03:10,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [757645778] [2022-03-15 20:03:10,159 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:10,160 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:10,161 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 27 transitions. [2022-03-15 20:03:10,161 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:10,190 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:10,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:03:10,191 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:10,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:03:10,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 20:03:10,191 INFO L87 Difference]: Start difference. First operand 422 states and 1217 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:10,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:10,225 INFO L93 Difference]: Finished difference Result 416 states and 1204 transitions. [2022-03-15 20:03:10,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:03:10,225 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-03-15 20:03:10,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:10,227 INFO L225 Difference]: With dead ends: 416 [2022-03-15 20:03:10,227 INFO L226 Difference]: Without dead ends: 416 [2022-03-15 20:03:10,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 20:03:10,229 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 24 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:10,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 8 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:10,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-03-15 20:03:10,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2022-03-15 20:03:10,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 413 states have (on average 2.9152542372881354) internal successors, (1204), 415 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:10,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 1204 transitions. [2022-03-15 20:03:10,238 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 1204 transitions. Word has length 15 [2022-03-15 20:03:10,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:10,238 INFO L470 AbstractCegarLoop]: Abstraction has 416 states and 1204 transitions. [2022-03-15 20:03:10,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:10,238 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 1204 transitions. [2022-03-15 20:03:10,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 20:03:10,240 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:10,240 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:10,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:10,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-03-15 20:03:10,457 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:10,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:10,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1209265724, now seen corresponding path program 1 times [2022-03-15 20:03:10,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:10,458 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875198681] [2022-03-15 20:03:10,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:10,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:10,500 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:10,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:10,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875198681] [2022-03-15 20:03:10,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875198681] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:10,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893494207] [2022-03-15 20:03:10,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:10,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:10,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:10,501 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:10,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-03-15 20:03:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:10,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:10,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:10,608 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 20:03:10,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:10,664 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 20:03:10,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893494207] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:10,664 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:10,664 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 12 [2022-03-15 20:03:10,664 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1914857292] [2022-03-15 20:03:10,664 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:10,665 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:10,668 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 39 transitions. [2022-03-15 20:03:10,668 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:10,708 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:10,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 20:03:10,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:10,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 20:03:10,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:10,708 INFO L87 Difference]: Start difference. First operand 416 states and 1204 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:10,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:10,743 INFO L93 Difference]: Finished difference Result 402 states and 1165 transitions. [2022-03-15 20:03:10,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 20:03:10,743 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-03-15 20:03:10,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:10,745 INFO L225 Difference]: With dead ends: 402 [2022-03-15 20:03:10,745 INFO L226 Difference]: Without dead ends: 402 [2022-03-15 20:03:10,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:10,745 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 40 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:10,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 7 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:10,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-03-15 20:03:10,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2022-03-15 20:03:10,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 400 states have (on average 2.9125) internal successors, (1165), 401 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:10,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 1165 transitions. [2022-03-15 20:03:10,753 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 1165 transitions. Word has length 19 [2022-03-15 20:03:10,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:10,753 INFO L470 AbstractCegarLoop]: Abstraction has 402 states and 1165 transitions. [2022-03-15 20:03:10,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:10,753 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 1165 transitions. [2022-03-15 20:03:10,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-03-15 20:03:10,754 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:10,754 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:10,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:10,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-03-15 20:03:10,970 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:10,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:10,970 INFO L85 PathProgramCache]: Analyzing trace with hash -570422620, now seen corresponding path program 1 times [2022-03-15 20:03:10,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:10,971 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968898225] [2022-03-15 20:03:10,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:10,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:11,005 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:11,005 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:11,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968898225] [2022-03-15 20:03:11,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968898225] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:11,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244987813] [2022-03-15 20:03:11,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:11,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:11,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:11,007 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:11,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-03-15 20:03:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:11,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:11,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:11,152 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-15 20:03:11,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:11,245 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-15 20:03:11,245 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244987813] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:11,245 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:11,245 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 13 [2022-03-15 20:03:11,246 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1490258431] [2022-03-15 20:03:11,246 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:11,247 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:11,250 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 51 transitions. [2022-03-15 20:03:11,250 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:11,314 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:11,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 20:03:11,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:11,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 20:03:11,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-03-15 20:03:11,315 INFO L87 Difference]: Start difference. First operand 402 states and 1165 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:11,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:11,346 INFO L93 Difference]: Finished difference Result 372 states and 1064 transitions. [2022-03-15 20:03:11,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 20:03:11,347 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-03-15 20:03:11,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:11,348 INFO L225 Difference]: With dead ends: 372 [2022-03-15 20:03:11,348 INFO L226 Difference]: Without dead ends: 372 [2022-03-15 20:03:11,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-03-15 20:03:11,349 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 41 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:11,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 9 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:11,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-03-15 20:03:11,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 283. [2022-03-15 20:03:11,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 282 states have (on average 3.00354609929078) internal successors, (847), 282 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:11,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 847 transitions. [2022-03-15 20:03:11,371 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 847 transitions. Word has length 23 [2022-03-15 20:03:11,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:11,371 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 847 transitions. [2022-03-15 20:03:11,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:11,371 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 847 transitions. [2022-03-15 20:03:11,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-03-15 20:03:11,372 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:11,372 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:11,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:11,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:11,572 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:11,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:11,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1350942946, now seen corresponding path program 1 times [2022-03-15 20:03:11,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:11,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257486255] [2022-03-15 20:03:11,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:11,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:03:11,586 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 20:03:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:03:11,593 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 20:03:11,593 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 20:03:11,593 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-03-15 20:03:11,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-03-15 20:03:11,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-15 20:03:11,594 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:11,594 WARN L235 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-15 20:03:11,594 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2022-03-15 20:03:11,604 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,604 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,604 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,604 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,604 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,604 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,604 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,604 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,604 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,604 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,604 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,604 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,604 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,604 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,604 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,604 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,604 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,604 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,605 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,605 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,605 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,605 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,605 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,605 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,605 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,605 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,605 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,605 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,605 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,605 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,605 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,605 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,605 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,605 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,605 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,605 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,606 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,607 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,608 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,608 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,608 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,608 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,608 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,608 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,608 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,608 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,608 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,608 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,608 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,608 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,608 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,608 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,608 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,608 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,608 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,608 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,609 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,609 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,609 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,609 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,609 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,609 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,609 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,609 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,609 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,609 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,609 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,609 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,610 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,610 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,610 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,610 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,610 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,610 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,610 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,610 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,610 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,610 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,610 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,610 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,610 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,610 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,610 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,610 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,611 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,611 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,611 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,611 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,611 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,611 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,611 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,611 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,611 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,611 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,611 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,611 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,612 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,612 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,612 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,612 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,612 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,612 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,612 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,612 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,613 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,613 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,613 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,613 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,613 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,613 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,613 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,613 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,613 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,613 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:11,615 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-03-15 20:03:11,616 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:03:11,617 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:03:11,617 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-15 20:03:11,618 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:03:11,618 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 94 transitions, 266 flow [2022-03-15 20:03:11,618 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 94 transitions, 266 flow [2022-03-15 20:03:11,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 94 transitions, 266 flow [2022-03-15 20:03:11,714 INFO L129 PetriNetUnfolder]: 213/1255 cut-off events. [2022-03-15 20:03:11,715 INFO L130 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2022-03-15 20:03:11,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1487 conditions, 1255 events. 213/1255 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6802 event pairs, 72 based on Foata normal form. 0/1099 useless extension candidates. Maximal degree in co-relation 771. Up to 192 conditions per place. [2022-03-15 20:03:11,735 INFO L116 LiptonReduction]: Number of co-enabled transitions 3120 [2022-03-15 20:03:12,966 INFO L131 LiptonReduction]: Checked pairs total: 5000 [2022-03-15 20:03:12,966 INFO L133 LiptonReduction]: Total number of compositions: 70 [2022-03-15 20:03:12,967 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 29 transitions, 136 flow [2022-03-15 20:03:12,992 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 698 states, 690 states have (on average 3.5231884057971015) internal successors, (2431), 697 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:12,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 698 states, 690 states have (on average 3.5231884057971015) internal successors, (2431), 697 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:12,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-03-15 20:03:12,993 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:12,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2022-03-15 20:03:12,993 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:12,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:12,994 INFO L85 PathProgramCache]: Analyzing trace with hash 31174, now seen corresponding path program 1 times [2022-03-15 20:03:12,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:12,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185972771] [2022-03-15 20:03:12,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:12,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:13,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:13,003 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:13,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185972771] [2022-03-15 20:03:13,003 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185972771] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:03:13,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:03:13,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:03:13,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2131973704] [2022-03-15 20:03:13,004 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:13,004 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:13,004 INFO L252 McrAutomatonBuilder]: Finished intersection with 3 states and 2 transitions. [2022-03-15 20:03:13,004 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:13,004 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:13,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:03:13,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:13,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:03:13,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:13,006 INFO L87 Difference]: Start difference. First operand has 698 states, 690 states have (on average 3.5231884057971015) internal successors, (2431), 697 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:13,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:13,023 INFO L93 Difference]: Finished difference Result 691 states and 2403 transitions. [2022-03-15 20:03:13,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:03:13,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-03-15 20:03:13,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:13,026 INFO L225 Difference]: With dead ends: 691 [2022-03-15 20:03:13,026 INFO L226 Difference]: Without dead ends: 691 [2022-03-15 20:03:13,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:13,027 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:13,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 4 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:13,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2022-03-15 20:03:13,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2022-03-15 20:03:13,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 684 states have (on average 3.513157894736842) internal successors, (2403), 690 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:13,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 2403 transitions. [2022-03-15 20:03:13,039 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 2403 transitions. Word has length 2 [2022-03-15 20:03:13,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:13,039 INFO L470 AbstractCegarLoop]: Abstraction has 691 states and 2403 transitions. [2022-03-15 20:03:13,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:13,039 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 2403 transitions. [2022-03-15 20:03:13,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-03-15 20:03:13,039 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:13,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:13,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-15 20:03:13,040 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:13,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:13,040 INFO L85 PathProgramCache]: Analyzing trace with hash 330708179, now seen corresponding path program 1 times [2022-03-15 20:03:13,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:13,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608451032] [2022-03-15 20:03:13,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:13,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:13,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:13,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608451032] [2022-03-15 20:03:13,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608451032] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:13,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397740685] [2022-03-15 20:03:13,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:13,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:13,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:13,056 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:13,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-03-15 20:03:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:13,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:03:13,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:13,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:13,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:13,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:13,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397740685] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:13,169 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:13,169 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2022-03-15 20:03:13,169 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1281100381] [2022-03-15 20:03:13,169 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:13,169 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:13,169 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 11 transitions. [2022-03-15 20:03:13,170 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:13,177 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:13,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 20:03:13,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:13,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 20:03:13,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-15 20:03:13,178 INFO L87 Difference]: Start difference. First operand 691 states and 2403 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:13,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:13,201 INFO L93 Difference]: Finished difference Result 690 states and 2402 transitions. [2022-03-15 20:03:13,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 20:03:13,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-03-15 20:03:13,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:13,204 INFO L225 Difference]: With dead ends: 690 [2022-03-15 20:03:13,204 INFO L226 Difference]: Without dead ends: 690 [2022-03-15 20:03:13,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-15 20:03:13,204 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:13,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 6 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:13,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2022-03-15 20:03:13,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 690. [2022-03-15 20:03:13,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 684 states have (on average 3.5116959064327484) internal successors, (2402), 689 states have internal predecessors, (2402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:13,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 2402 transitions. [2022-03-15 20:03:13,217 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 2402 transitions. Word has length 7 [2022-03-15 20:03:13,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:13,217 INFO L470 AbstractCegarLoop]: Abstraction has 690 states and 2402 transitions. [2022-03-15 20:03:13,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:13,217 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 2402 transitions. [2022-03-15 20:03:13,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:03:13,217 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:13,217 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:03:13,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:13,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:13,433 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:13,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:13,433 INFO L85 PathProgramCache]: Analyzing trace with hash 862361259, now seen corresponding path program 1 times [2022-03-15 20:03:13,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:13,434 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933675650] [2022-03-15 20:03:13,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:13,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:13,453 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:13,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:13,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933675650] [2022-03-15 20:03:13,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933675650] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:13,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134915138] [2022-03-15 20:03:13,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:13,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:13,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:13,454 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:13,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-03-15 20:03:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:13,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:03:13,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:13,562 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:13,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:13,589 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:13,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134915138] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:13,589 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:13,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2022-03-15 20:03:13,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1041845032] [2022-03-15 20:03:13,590 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:13,590 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:13,591 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 23 transitions. [2022-03-15 20:03:13,591 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:13,623 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [5759#(<= (+ |threadThread1of6ForFork0_#in~arg.base| |threadThread1of6ForFork0_#in~arg.offset|) 1)] [2022-03-15 20:03:13,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:03:13,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:13,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:03:13,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-15 20:03:13,624 INFO L87 Difference]: Start difference. First operand 690 states and 2402 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:13,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:13,664 INFO L93 Difference]: Finished difference Result 1001 states and 3255 transitions. [2022-03-15 20:03:13,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:03:13,665 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:03:13,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:13,669 INFO L225 Difference]: With dead ends: 1001 [2022-03-15 20:03:13,669 INFO L226 Difference]: Without dead ends: 1001 [2022-03-15 20:03:13,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:13,669 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 60 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:13,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 6 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:13,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2022-03-15 20:03:13,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 882. [2022-03-15 20:03:13,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 876 states have (on average 3.3789954337899544) internal successors, (2960), 881 states have internal predecessors, (2960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:13,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 2960 transitions. [2022-03-15 20:03:13,686 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 2960 transitions. Word has length 11 [2022-03-15 20:03:13,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:13,687 INFO L470 AbstractCegarLoop]: Abstraction has 882 states and 2960 transitions. [2022-03-15 20:03:13,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:13,687 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 2960 transitions. [2022-03-15 20:03:13,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:03:13,687 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:13,687 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:03:13,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:13,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-03-15 20:03:13,903 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:13,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:13,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1963417120, now seen corresponding path program 1 times [2022-03-15 20:03:13,904 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:13,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373540390] [2022-03-15 20:03:13,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:13,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:13,922 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:13,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:13,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373540390] [2022-03-15 20:03:13,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373540390] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:13,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969484601] [2022-03-15 20:03:13,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:13,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:13,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:13,932 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:13,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-03-15 20:03:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:13,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:13,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:14,025 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:14,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:14,066 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:14,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969484601] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:14,066 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:14,066 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 10 [2022-03-15 20:03:14,066 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1846290910] [2022-03-15 20:03:14,066 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:14,067 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:14,067 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 15 transitions. [2022-03-15 20:03:14,067 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:14,075 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:14,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 20:03:14,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:14,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 20:03:14,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-15 20:03:14,076 INFO L87 Difference]: Start difference. First operand 882 states and 2960 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:14,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:14,111 INFO L93 Difference]: Finished difference Result 880 states and 2957 transitions. [2022-03-15 20:03:14,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 20:03:14,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:03:14,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:14,115 INFO L225 Difference]: With dead ends: 880 [2022-03-15 20:03:14,115 INFO L226 Difference]: Without dead ends: 880 [2022-03-15 20:03:14,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-15 20:03:14,115 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:14,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 8 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:14,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2022-03-15 20:03:14,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 880. [2022-03-15 20:03:14,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 875 states have (on average 3.3794285714285714) internal successors, (2957), 879 states have internal predecessors, (2957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:14,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 2957 transitions. [2022-03-15 20:03:14,130 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 2957 transitions. Word has length 11 [2022-03-15 20:03:14,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:14,130 INFO L470 AbstractCegarLoop]: Abstraction has 880 states and 2957 transitions. [2022-03-15 20:03:14,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:14,130 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 2957 transitions. [2022-03-15 20:03:14,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-15 20:03:14,130 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:14,130 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:14,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:14,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-03-15 20:03:14,346 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:14,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:14,346 INFO L85 PathProgramCache]: Analyzing trace with hash -902249001, now seen corresponding path program 1 times [2022-03-15 20:03:14,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:14,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586565971] [2022-03-15 20:03:14,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:14,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:14,374 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:14,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:14,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586565971] [2022-03-15 20:03:14,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586565971] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:14,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199787613] [2022-03-15 20:03:14,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:14,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:14,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:14,375 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:14,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-03-15 20:03:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:14,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:14,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:14,505 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:14,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:14,548 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:14,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199787613] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:14,548 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:14,548 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2022-03-15 20:03:14,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1716607772] [2022-03-15 20:03:14,549 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:14,550 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:14,551 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 27 transitions. [2022-03-15 20:03:14,551 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:14,600 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:14,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:03:14,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:14,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:03:14,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 20:03:14,600 INFO L87 Difference]: Start difference. First operand 880 states and 2957 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:14,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:14,636 INFO L93 Difference]: Finished difference Result 874 states and 2944 transitions. [2022-03-15 20:03:14,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:03:14,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-03-15 20:03:14,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:14,640 INFO L225 Difference]: With dead ends: 874 [2022-03-15 20:03:14,640 INFO L226 Difference]: Without dead ends: 874 [2022-03-15 20:03:14,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 20:03:14,641 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 20 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:14,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 9 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:14,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2022-03-15 20:03:14,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 874. [2022-03-15 20:03:14,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 870 states have (on average 3.3839080459770114) internal successors, (2944), 873 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:14,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 2944 transitions. [2022-03-15 20:03:14,677 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 2944 transitions. Word has length 15 [2022-03-15 20:03:14,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:14,677 INFO L470 AbstractCegarLoop]: Abstraction has 874 states and 2944 transitions. [2022-03-15 20:03:14,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:14,677 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 2944 transitions. [2022-03-15 20:03:14,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 20:03:14,678 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:14,678 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:14,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:14,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:14,879 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:14,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:14,879 INFO L85 PathProgramCache]: Analyzing trace with hash -730730899, now seen corresponding path program 1 times [2022-03-15 20:03:14,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:14,880 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349256766] [2022-03-15 20:03:14,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:14,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:14,921 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:14,921 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:14,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349256766] [2022-03-15 20:03:14,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349256766] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:14,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886875141] [2022-03-15 20:03:14,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:14,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:14,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:14,922 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:14,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-03-15 20:03:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:15,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:15,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:15,059 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 20:03:15,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:15,116 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 20:03:15,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886875141] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:15,116 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:15,117 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 12 [2022-03-15 20:03:15,117 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1887277282] [2022-03-15 20:03:15,117 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:15,119 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:15,121 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 39 transitions. [2022-03-15 20:03:15,121 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:15,157 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:15,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 20:03:15,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:15,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 20:03:15,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:15,158 INFO L87 Difference]: Start difference. First operand 874 states and 2944 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:15,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:15,196 INFO L93 Difference]: Finished difference Result 860 states and 2905 transitions. [2022-03-15 20:03:15,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 20:03:15,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-03-15 20:03:15,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:15,200 INFO L225 Difference]: With dead ends: 860 [2022-03-15 20:03:15,200 INFO L226 Difference]: Without dead ends: 860 [2022-03-15 20:03:15,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:15,201 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 43 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:15,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 8 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:15,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2022-03-15 20:03:15,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 860. [2022-03-15 20:03:15,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 857 states have (on average 3.3897316219369893) internal successors, (2905), 859 states have internal predecessors, (2905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:15,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 2905 transitions. [2022-03-15 20:03:15,214 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 2905 transitions. Word has length 19 [2022-03-15 20:03:15,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:15,214 INFO L470 AbstractCegarLoop]: Abstraction has 860 states and 2905 transitions. [2022-03-15 20:03:15,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:15,214 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 2905 transitions. [2022-03-15 20:03:15,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-03-15 20:03:15,215 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:15,215 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:15,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:15,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:15,431 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:15,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:15,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1444499554, now seen corresponding path program 1 times [2022-03-15 20:03:15,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:15,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180250299] [2022-03-15 20:03:15,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:15,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:15,468 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:15,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:15,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180250299] [2022-03-15 20:03:15,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180250299] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:15,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159380412] [2022-03-15 20:03:15,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:15,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:15,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:15,469 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:15,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-03-15 20:03:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:15,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:15,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:15,588 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-15 20:03:15,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:15,652 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-15 20:03:15,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159380412] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:15,652 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:15,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 13 [2022-03-15 20:03:15,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1932941269] [2022-03-15 20:03:15,652 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:15,654 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:15,656 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 51 transitions. [2022-03-15 20:03:15,656 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:15,713 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:15,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 20:03:15,713 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:15,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 20:03:15,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-03-15 20:03:15,714 INFO L87 Difference]: Start difference. First operand 860 states and 2905 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:15,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:15,762 INFO L93 Difference]: Finished difference Result 830 states and 2804 transitions. [2022-03-15 20:03:15,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 20:03:15,762 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-03-15 20:03:15,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:15,765 INFO L225 Difference]: With dead ends: 830 [2022-03-15 20:03:15,765 INFO L226 Difference]: Without dead ends: 830 [2022-03-15 20:03:15,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-03-15 20:03:15,766 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 41 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:15,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 10 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:15,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2022-03-15 20:03:15,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2022-03-15 20:03:15,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 828 states have (on average 3.3864734299516908) internal successors, (2804), 829 states have internal predecessors, (2804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:15,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 2804 transitions. [2022-03-15 20:03:15,778 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 2804 transitions. Word has length 23 [2022-03-15 20:03:15,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:15,779 INFO L470 AbstractCegarLoop]: Abstraction has 830 states and 2804 transitions. [2022-03-15 20:03:15,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:15,779 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 2804 transitions. [2022-03-15 20:03:15,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 20:03:15,780 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:15,780 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:15,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:15,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-03-15 20:03:15,996 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:15,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:15,996 INFO L85 PathProgramCache]: Analyzing trace with hash 279258166, now seen corresponding path program 1 times [2022-03-15 20:03:15,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:15,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645096092] [2022-03-15 20:03:15,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:15,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:16,043 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:16,043 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:16,043 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645096092] [2022-03-15 20:03:16,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645096092] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:16,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019771389] [2022-03-15 20:03:16,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:16,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:16,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:16,045 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:16,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-03-15 20:03:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:16,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:16,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:16,174 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-15 20:03:16,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:16,245 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-15 20:03:16,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019771389] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:16,246 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:16,246 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 14 [2022-03-15 20:03:16,246 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1110001597] [2022-03-15 20:03:16,246 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:16,248 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:16,251 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 63 transitions. [2022-03-15 20:03:16,252 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:16,377 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:16,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 20:03:16,377 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:16,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 20:03:16,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-03-15 20:03:16,378 INFO L87 Difference]: Start difference. First operand 830 states and 2804 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:16,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:16,427 INFO L93 Difference]: Finished difference Result 768 states and 2561 transitions. [2022-03-15 20:03:16,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 20:03:16,428 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-03-15 20:03:16,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:16,430 INFO L225 Difference]: With dead ends: 768 [2022-03-15 20:03:16,431 INFO L226 Difference]: Without dead ends: 768 [2022-03-15 20:03:16,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-03-15 20:03:16,431 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 56 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:16,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 9 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:16,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2022-03-15 20:03:16,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 571. [2022-03-15 20:03:16,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 570 states have (on average 3.4789473684210526) internal successors, (1983), 570 states have internal predecessors, (1983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:16,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 1983 transitions. [2022-03-15 20:03:16,441 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 1983 transitions. Word has length 27 [2022-03-15 20:03:16,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:16,441 INFO L470 AbstractCegarLoop]: Abstraction has 571 states and 1983 transitions. [2022-03-15 20:03:16,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:16,441 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 1983 transitions. [2022-03-15 20:03:16,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 20:03:16,442 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:16,442 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:16,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:16,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-03-15 20:03:16,658 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:16,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:16,659 INFO L85 PathProgramCache]: Analyzing trace with hash -517177115, now seen corresponding path program 1 times [2022-03-15 20:03:16,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:16,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353035150] [2022-03-15 20:03:16,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:16,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:03:16,673 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 20:03:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:03:16,681 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 20:03:16,681 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 20:03:16,681 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-03-15 20:03:16,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-03-15 20:03:16,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-15 20:03:16,682 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:16,682 WARN L235 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-15 20:03:16,682 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2022-03-15 20:03:16,694 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,694 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,694 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,694 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,695 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,696 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,697 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,698 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,699 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,699 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,699 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,699 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,699 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,699 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,699 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,699 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,699 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,699 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,699 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,699 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,702 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,702 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,702 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,702 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,702 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,703 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,704 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,705 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,705 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,705 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,705 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,705 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,705 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,705 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,705 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,705 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,705 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,705 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,705 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,706 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,706 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,706 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,706 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,706 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,706 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,706 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,706 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,706 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,706 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,706 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,706 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,706 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,707 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,707 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,707 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,707 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,707 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,707 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,707 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,707 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,707 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,707 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,707 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,707 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:16,712 INFO L148 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2022-03-15 20:03:16,713 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:03:16,713 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:03:16,713 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-15 20:03:16,713 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:03:16,713 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 101 transitions, 300 flow [2022-03-15 20:03:16,714 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 101 transitions, 300 flow [2022-03-15 20:03:16,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 101 transitions, 300 flow [2022-03-15 20:03:16,876 INFO L129 PetriNetUnfolder]: 472/2430 cut-off events. [2022-03-15 20:03:16,876 INFO L130 PetriNetUnfolder]: For 525/525 co-relation queries the response was YES. [2022-03-15 20:03:16,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2928 conditions, 2430 events. 472/2430 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 16324 event pairs, 201 based on Foata normal form. 0/2142 useless extension candidates. Maximal degree in co-relation 1473. Up to 448 conditions per place. [2022-03-15 20:03:16,911 INFO L116 LiptonReduction]: Number of co-enabled transitions 3920 [2022-03-15 20:03:18,200 INFO L131 LiptonReduction]: Checked pairs total: 6060 [2022-03-15 20:03:18,200 INFO L133 LiptonReduction]: Total number of compositions: 74 [2022-03-15 20:03:18,200 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 32 transitions, 162 flow [2022-03-15 20:03:18,241 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1402 states, 1393 states have (on average 3.996410624551328) internal successors, (5567), 1401 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:18,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 1402 states, 1393 states have (on average 3.996410624551328) internal successors, (5567), 1401 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:18,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-03-15 20:03:18,242 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:18,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2022-03-15 20:03:18,243 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:18,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:18,243 INFO L85 PathProgramCache]: Analyzing trace with hash 36999, now seen corresponding path program 1 times [2022-03-15 20:03:18,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:18,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164291061] [2022-03-15 20:03:18,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:18,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:18,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:18,251 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:18,251 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164291061] [2022-03-15 20:03:18,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164291061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:03:18,251 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:03:18,251 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:03:18,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [541716316] [2022-03-15 20:03:18,251 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:18,251 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:18,252 INFO L252 McrAutomatonBuilder]: Finished intersection with 3 states and 2 transitions. [2022-03-15 20:03:18,252 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:18,252 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:18,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:03:18,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:18,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:03:18,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:18,255 INFO L87 Difference]: Start difference. First operand has 1402 states, 1393 states have (on average 3.996410624551328) internal successors, (5567), 1401 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:18,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:18,277 INFO L93 Difference]: Finished difference Result 1401 states and 5566 transitions. [2022-03-15 20:03:18,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:03:18,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-03-15 20:03:18,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:18,284 INFO L225 Difference]: With dead ends: 1401 [2022-03-15 20:03:18,284 INFO L226 Difference]: Without dead ends: 1401 [2022-03-15 20:03:18,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:18,284 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:18,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:18,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2022-03-15 20:03:18,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1401. [2022-03-15 20:03:18,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 1393 states have (on average 3.9956927494615937) internal successors, (5566), 1400 states have internal predecessors, (5566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:18,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 5566 transitions. [2022-03-15 20:03:18,308 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 5566 transitions. Word has length 2 [2022-03-15 20:03:18,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:18,308 INFO L470 AbstractCegarLoop]: Abstraction has 1401 states and 5566 transitions. [2022-03-15 20:03:18,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:18,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 5566 transitions. [2022-03-15 20:03:18,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-03-15 20:03:18,308 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:18,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-03-15 20:03:18,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-15 20:03:18,308 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:18,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:18,309 INFO L85 PathProgramCache]: Analyzing trace with hash -142706284, now seen corresponding path program 1 times [2022-03-15 20:03:18,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:18,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907516346] [2022-03-15 20:03:18,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:18,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:18,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 20:03:18,317 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:18,317 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907516346] [2022-03-15 20:03:18,317 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907516346] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:03:18,317 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:03:18,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:03:18,318 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [843316934] [2022-03-15 20:03:18,318 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:18,318 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:18,318 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2022-03-15 20:03:18,318 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:18,318 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:18,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:03:18,318 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:18,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:03:18,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:18,319 INFO L87 Difference]: Start difference. First operand 1401 states and 5566 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:18,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:18,341 INFO L93 Difference]: Finished difference Result 1394 states and 5531 transitions. [2022-03-15 20:03:18,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:03:18,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-03-15 20:03:18,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:18,347 INFO L225 Difference]: With dead ends: 1394 [2022-03-15 20:03:18,347 INFO L226 Difference]: Without dead ends: 1394 [2022-03-15 20:03:18,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:18,348 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:18,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:18,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2022-03-15 20:03:18,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2022-03-15 20:03:18,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1386 states have (on average 3.9906204906204907) internal successors, (5531), 1393 states have internal predecessors, (5531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:18,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 5531 transitions. [2022-03-15 20:03:18,371 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 5531 transitions. Word has length 6 [2022-03-15 20:03:18,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:18,371 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 5531 transitions. [2022-03-15 20:03:18,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:18,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 5531 transitions. [2022-03-15 20:03:18,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-03-15 20:03:18,371 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:18,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:18,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-15 20:03:18,372 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:18,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:18,372 INFO L85 PathProgramCache]: Analyzing trace with hash -125385246, now seen corresponding path program 1 times [2022-03-15 20:03:18,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:18,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193314480] [2022-03-15 20:03:18,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:18,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:18,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:18,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:18,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193314480] [2022-03-15 20:03:18,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193314480] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:18,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077093295] [2022-03-15 20:03:18,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:18,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:18,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:18,400 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:18,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-03-15 20:03:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:18,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:03:18,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:18,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:18,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:18,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:18,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077093295] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:18,517 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:18,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2022-03-15 20:03:18,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1895284795] [2022-03-15 20:03:18,518 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:18,518 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:18,518 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 11 transitions. [2022-03-15 20:03:18,518 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:18,527 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:18,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 20:03:18,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:18,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 20:03:18,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-15 20:03:18,528 INFO L87 Difference]: Start difference. First operand 1394 states and 5531 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:18,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:18,560 INFO L93 Difference]: Finished difference Result 1393 states and 5530 transitions. [2022-03-15 20:03:18,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 20:03:18,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-03-15 20:03:18,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:18,570 INFO L225 Difference]: With dead ends: 1393 [2022-03-15 20:03:18,570 INFO L226 Difference]: Without dead ends: 1393 [2022-03-15 20:03:18,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-15 20:03:18,570 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:18,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 6 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:18,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2022-03-15 20:03:18,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1393. [2022-03-15 20:03:18,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1386 states have (on average 3.98989898989899) internal successors, (5530), 1392 states have internal predecessors, (5530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:18,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 5530 transitions. [2022-03-15 20:03:18,595 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 5530 transitions. Word has length 7 [2022-03-15 20:03:18,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:18,595 INFO L470 AbstractCegarLoop]: Abstraction has 1393 states and 5530 transitions. [2022-03-15 20:03:18,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:18,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 5530 transitions. [2022-03-15 20:03:18,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:03:18,595 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:18,595 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:03:18,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:18,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2022-03-15 20:03:18,811 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:18,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:18,812 INFO L85 PathProgramCache]: Analyzing trace with hash 753204686, now seen corresponding path program 1 times [2022-03-15 20:03:18,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:18,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417305329] [2022-03-15 20:03:18,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:18,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:18,847 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:18,847 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:18,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417305329] [2022-03-15 20:03:18,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417305329] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:18,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620121917] [2022-03-15 20:03:18,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:18,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:18,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:18,865 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:18,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-03-15 20:03:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:18,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:03:18,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:18,989 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:18,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:19,025 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:19,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620121917] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:19,025 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:19,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2022-03-15 20:03:19,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [632036661] [2022-03-15 20:03:19,025 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:19,026 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:19,026 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 23 transitions. [2022-03-15 20:03:19,026 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:19,051 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [15599#(<= (+ |threadThread1of7ForFork0_#in~arg.base| |threadThread1of7ForFork0_#in~arg.offset|) 1)] [2022-03-15 20:03:19,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:03:19,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:19,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:03:19,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-15 20:03:19,052 INFO L87 Difference]: Start difference. First operand 1393 states and 5530 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:19,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:19,102 INFO L93 Difference]: Finished difference Result 2050 states and 7669 transitions. [2022-03-15 20:03:19,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:03:19,102 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:03:19,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:19,107 INFO L225 Difference]: With dead ends: 2050 [2022-03-15 20:03:19,108 INFO L226 Difference]: Without dead ends: 2050 [2022-03-15 20:03:19,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:19,108 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 43 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:19,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 6 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:19,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2022-03-15 20:03:19,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 1804. [2022-03-15 20:03:19,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1797 states have (on average 3.858653311074012) internal successors, (6934), 1803 states have internal predecessors, (6934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:19,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 6934 transitions. [2022-03-15 20:03:19,140 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 6934 transitions. Word has length 11 [2022-03-15 20:03:19,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:19,140 INFO L470 AbstractCegarLoop]: Abstraction has 1804 states and 6934 transitions. [2022-03-15 20:03:19,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:19,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 6934 transitions. [2022-03-15 20:03:19,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:03:19,141 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:19,141 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:03:19,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:19,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:19,355 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:19,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:19,356 INFO L85 PathProgramCache]: Analyzing trace with hash -698774021, now seen corresponding path program 1 times [2022-03-15 20:03:19,356 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:19,356 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491650277] [2022-03-15 20:03:19,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:19,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:19,376 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:19,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:19,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491650277] [2022-03-15 20:03:19,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491650277] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:19,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881599823] [2022-03-15 20:03:19,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:19,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:19,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:19,384 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:19,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-03-15 20:03:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:19,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-15 20:03:19,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:19,496 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:19,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:19,519 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:19,519 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881599823] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:19,519 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:19,519 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2022-03-15 20:03:19,519 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [35720972] [2022-03-15 20:03:19,519 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:19,520 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:19,520 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 15 transitions. [2022-03-15 20:03:19,520 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:19,525 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:19,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 20:03:19,525 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:19,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 20:03:19,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-03-15 20:03:19,526 INFO L87 Difference]: Start difference. First operand 1804 states and 6934 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:19,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:19,564 INFO L93 Difference]: Finished difference Result 1802 states and 6931 transitions. [2022-03-15 20:03:19,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 20:03:19,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:03:19,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:19,569 INFO L225 Difference]: With dead ends: 1802 [2022-03-15 20:03:19,569 INFO L226 Difference]: Without dead ends: 1802 [2022-03-15 20:03:19,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-03-15 20:03:19,570 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:19,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 8 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:19,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2022-03-15 20:03:19,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1802. [2022-03-15 20:03:19,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1802 states, 1796 states have (on average 3.85913140311804) internal successors, (6931), 1801 states have internal predecessors, (6931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:19,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 6931 transitions. [2022-03-15 20:03:19,600 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 6931 transitions. Word has length 11 [2022-03-15 20:03:19,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:19,600 INFO L470 AbstractCegarLoop]: Abstraction has 1802 states and 6931 transitions. [2022-03-15 20:03:19,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:19,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 6931 transitions. [2022-03-15 20:03:19,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-15 20:03:19,600 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:19,600 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:19,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:19,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:19,816 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:19,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:19,817 INFO L85 PathProgramCache]: Analyzing trace with hash -813758091, now seen corresponding path program 1 times [2022-03-15 20:03:19,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:19,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979086642] [2022-03-15 20:03:19,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:19,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:19,838 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:19,838 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:19,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979086642] [2022-03-15 20:03:19,838 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979086642] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:19,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512877977] [2022-03-15 20:03:19,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:19,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:19,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:19,839 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:19,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-03-15 20:03:19,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:19,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core [2022-03-15 20:03:19,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:19,939 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:19,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:19,982 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:19,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512877977] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:19,982 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:19,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-03-15 20:03:19,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1627132791] [2022-03-15 20:03:19,983 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:19,983 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:19,984 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 19 transitions. [2022-03-15 20:03:19,984 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:19,989 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:19,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:03:19,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:19,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:03:19,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-03-15 20:03:19,990 INFO L87 Difference]: Start difference. First operand 1802 states and 6931 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:20,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:20,034 INFO L93 Difference]: Finished difference Result 1796 states and 6918 transitions. [2022-03-15 20:03:20,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:03:20,034 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-03-15 20:03:20,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:20,039 INFO L225 Difference]: With dead ends: 1796 [2022-03-15 20:03:20,039 INFO L226 Difference]: Without dead ends: 1796 [2022-03-15 20:03:20,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-03-15 20:03:20,040 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 23 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:20,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 9 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:20,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2022-03-15 20:03:20,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1796. [2022-03-15 20:03:20,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1796 states, 1791 states have (on average 3.862646566164154) internal successors, (6918), 1795 states have internal predecessors, (6918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:20,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1796 states to 1796 states and 6918 transitions. [2022-03-15 20:03:20,069 INFO L78 Accepts]: Start accepts. Automaton has 1796 states and 6918 transitions. Word has length 15 [2022-03-15 20:03:20,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:20,069 INFO L470 AbstractCegarLoop]: Abstraction has 1796 states and 6918 transitions. [2022-03-15 20:03:20,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:20,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1796 states and 6918 transitions. [2022-03-15 20:03:20,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 20:03:20,069 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:20,070 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:20,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:20,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:20,286 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:20,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:20,286 INFO L85 PathProgramCache]: Analyzing trace with hash -2145638241, now seen corresponding path program 1 times [2022-03-15 20:03:20,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:20,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183902063] [2022-03-15 20:03:20,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:20,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:20,315 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:20,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:20,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183902063] [2022-03-15 20:03:20,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183902063] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:20,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525863876] [2022-03-15 20:03:20,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:20,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:20,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:20,336 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:20,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-03-15 20:03:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:20,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 20:03:20,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:20,478 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 20:03:20,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 20:03:20,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525863876] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:20,546 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:20,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-03-15 20:03:20,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1016814277] [2022-03-15 20:03:20,546 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:20,547 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:20,549 INFO L252 McrAutomatonBuilder]: Finished intersection with 26 states and 31 transitions. [2022-03-15 20:03:20,549 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:20,570 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:20,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 20:03:20,570 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:20,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 20:03:20,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-03-15 20:03:20,570 INFO L87 Difference]: Start difference. First operand 1796 states and 6918 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:20,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:20,619 INFO L93 Difference]: Finished difference Result 1782 states and 6879 transitions. [2022-03-15 20:03:20,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 20:03:20,619 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-03-15 20:03:20,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:20,623 INFO L225 Difference]: With dead ends: 1782 [2022-03-15 20:03:20,623 INFO L226 Difference]: Without dead ends: 1782 [2022-03-15 20:03:20,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-03-15 20:03:20,624 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 46 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:20,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 8 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:20,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2022-03-15 20:03:20,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 1782. [2022-03-15 20:03:20,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1782 states, 1778 states have (on average 3.8689538807649044) internal successors, (6879), 1781 states have internal predecessors, (6879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:20,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1782 states to 1782 states and 6879 transitions. [2022-03-15 20:03:20,654 INFO L78 Accepts]: Start accepts. Automaton has 1782 states and 6879 transitions. Word has length 19 [2022-03-15 20:03:20,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:20,654 INFO L470 AbstractCegarLoop]: Abstraction has 1782 states and 6879 transitions. [2022-03-15 20:03:20,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:20,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1782 states and 6879 transitions. [2022-03-15 20:03:20,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-03-15 20:03:20,655 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:20,655 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:20,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:20,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2022-03-15 20:03:20,872 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:20,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:20,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1365382952, now seen corresponding path program 1 times [2022-03-15 20:03:20,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:20,873 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748216220] [2022-03-15 20:03:20,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:20,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:20,913 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:20,913 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:20,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748216220] [2022-03-15 20:03:20,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748216220] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:20,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782158957] [2022-03-15 20:03:20,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:20,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:20,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:20,914 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:20,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-03-15 20:03:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:21,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 20:03:21,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:21,077 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-15 20:03:21,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:21,151 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-15 20:03:21,151 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782158957] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:21,151 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:21,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2022-03-15 20:03:21,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1584450934] [2022-03-15 20:03:21,152 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:21,153 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:21,156 INFO L252 McrAutomatonBuilder]: Finished intersection with 34 states and 43 transitions. [2022-03-15 20:03:21,156 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:21,193 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:21,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 20:03:21,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:21,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 20:03:21,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-03-15 20:03:21,194 INFO L87 Difference]: Start difference. First operand 1782 states and 6879 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:21,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:21,244 INFO L93 Difference]: Finished difference Result 1752 states and 6778 transitions. [2022-03-15 20:03:21,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 20:03:21,244 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-03-15 20:03:21,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:21,252 INFO L225 Difference]: With dead ends: 1752 [2022-03-15 20:03:21,252 INFO L226 Difference]: Without dead ends: 1752 [2022-03-15 20:03:21,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-03-15 20:03:21,252 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 47 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:21,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 10 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:21,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2022-03-15 20:03:21,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1752. [2022-03-15 20:03:21,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1752 states, 1749 states have (on average 3.87535734705546) internal successors, (6778), 1751 states have internal predecessors, (6778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:21,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 6778 transitions. [2022-03-15 20:03:21,279 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 6778 transitions. Word has length 23 [2022-03-15 20:03:21,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:21,280 INFO L470 AbstractCegarLoop]: Abstraction has 1752 states and 6778 transitions. [2022-03-15 20:03:21,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:21,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 6778 transitions. [2022-03-15 20:03:21,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 20:03:21,281 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:21,281 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:21,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:21,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2022-03-15 20:03:21,497 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:21,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:21,497 INFO L85 PathProgramCache]: Analyzing trace with hash 428608912, now seen corresponding path program 1 times [2022-03-15 20:03:21,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:21,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618025103] [2022-03-15 20:03:21,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:21,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:21,546 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:21,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:21,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618025103] [2022-03-15 20:03:21,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618025103] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:21,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688119693] [2022-03-15 20:03:21,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:21,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:21,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:21,554 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:21,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-03-15 20:03:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:21,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 20:03:21,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:21,701 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-15 20:03:21,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:21,779 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-15 20:03:21,779 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688119693] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:21,779 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:21,779 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 15 [2022-03-15 20:03:21,779 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [491972372] [2022-03-15 20:03:21,780 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:21,781 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:21,786 INFO L252 McrAutomatonBuilder]: Finished intersection with 42 states and 55 transitions. [2022-03-15 20:03:21,786 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:21,839 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:21,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 20:03:21,839 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:21,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 20:03:21,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-15 20:03:21,840 INFO L87 Difference]: Start difference. First operand 1752 states and 6778 transitions. Second operand has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:21,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:21,900 INFO L93 Difference]: Finished difference Result 1690 states and 6535 transitions. [2022-03-15 20:03:21,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 20:03:21,900 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-03-15 20:03:21,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:21,904 INFO L225 Difference]: With dead ends: 1690 [2022-03-15 20:03:21,904 INFO L226 Difference]: Without dead ends: 1690 [2022-03-15 20:03:21,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-15 20:03:21,904 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 65 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:21,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 10 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:03:21,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-03-15 20:03:21,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1690. [2022-03-15 20:03:21,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1690 states, 1688 states have (on average 3.8714454976303316) internal successors, (6535), 1689 states have internal predecessors, (6535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:21,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 6535 transitions. [2022-03-15 20:03:21,930 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 6535 transitions. Word has length 27 [2022-03-15 20:03:21,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:21,930 INFO L470 AbstractCegarLoop]: Abstraction has 1690 states and 6535 transitions. [2022-03-15 20:03:21,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:21,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 6535 transitions. [2022-03-15 20:03:21,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-15 20:03:21,932 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:21,932 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:21,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:22,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2022-03-15 20:03:22,148 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:22,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:22,149 INFO L85 PathProgramCache]: Analyzing trace with hash 897909847, now seen corresponding path program 1 times [2022-03-15 20:03:22,149 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:22,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414319905] [2022-03-15 20:03:22,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:22,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:22,196 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:22,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:22,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414319905] [2022-03-15 20:03:22,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414319905] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:22,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126150861] [2022-03-15 20:03:22,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:22,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:22,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:22,198 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:22,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-03-15 20:03:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:22,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 20:03:22,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:22,375 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-03-15 20:03:22,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:22,460 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-03-15 20:03:22,460 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126150861] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:22,460 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:22,460 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 16 [2022-03-15 20:03:22,460 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1196365193] [2022-03-15 20:03:22,460 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:22,462 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:22,469 INFO L252 McrAutomatonBuilder]: Finished intersection with 50 states and 67 transitions. [2022-03-15 20:03:22,469 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:22,534 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:22,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 20:03:22,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:22,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 20:03:22,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2022-03-15 20:03:22,535 INFO L87 Difference]: Start difference. First operand 1690 states and 6535 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:22,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:22,593 INFO L93 Difference]: Finished difference Result 1564 states and 5974 transitions. [2022-03-15 20:03:22,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 20:03:22,593 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-03-15 20:03:22,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:22,597 INFO L225 Difference]: With dead ends: 1564 [2022-03-15 20:03:22,597 INFO L226 Difference]: Without dead ends: 1564 [2022-03-15 20:03:22,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2022-03-15 20:03:22,597 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 87 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:22,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 11 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:22,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2022-03-15 20:03:22,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1147. [2022-03-15 20:03:22,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1146 states have (on average 3.9642233856893543) internal successors, (4543), 1146 states have internal predecessors, (4543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:22,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 4543 transitions. [2022-03-15 20:03:22,617 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 4543 transitions. Word has length 31 [2022-03-15 20:03:22,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:22,617 INFO L470 AbstractCegarLoop]: Abstraction has 1147 states and 4543 transitions. [2022-03-15 20:03:22,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:22,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 4543 transitions. [2022-03-15 20:03:22,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-15 20:03:22,619 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:22,619 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:22,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:22,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-03-15 20:03:22,834 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:22,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:22,835 INFO L85 PathProgramCache]: Analyzing trace with hash 655513361, now seen corresponding path program 1 times [2022-03-15 20:03:22,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:22,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18526182] [2022-03-15 20:03:22,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:22,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:03:22,846 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 20:03:22,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:03:22,865 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 20:03:22,865 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 20:03:22,865 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-03-15 20:03:22,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-03-15 20:03:22,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-15 20:03:22,866 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:22,866 WARN L235 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-15 20:03:22,866 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2022-03-15 20:03:22,878 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,878 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,879 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,880 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,881 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,882 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,882 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,882 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,882 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,882 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,882 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,882 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,882 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,882 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,882 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,882 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,882 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,882 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,882 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,882 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,883 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,883 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,883 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,883 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,883 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,883 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,883 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,883 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,883 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,883 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,883 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,883 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,883 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,883 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,884 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,885 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,886 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,886 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,886 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,886 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,886 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,886 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,886 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,886 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,886 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,886 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,886 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,886 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,886 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,886 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,886 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,886 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,886 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,887 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,887 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,887 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,887 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,887 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,887 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,887 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,887 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,887 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,887 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,887 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,887 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,887 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,887 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,888 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,888 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,888 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,888 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,888 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,888 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,888 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,888 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,888 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,888 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,888 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,888 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,888 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,889 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,889 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,889 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,889 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,889 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,889 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,889 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,889 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,889 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,889 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,889 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,889 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,889 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,889 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,890 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,890 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,890 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,890 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,890 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:22,892 INFO L148 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-03-15 20:03:22,893 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:03:22,894 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:03:22,894 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-15 20:03:22,894 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:03:22,895 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 108 transitions, 336 flow [2022-03-15 20:03:22,895 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 108 transitions, 336 flow [2022-03-15 20:03:22,895 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 108 transitions, 336 flow [2022-03-15 20:03:23,305 INFO L129 PetriNetUnfolder]: 1051/4821 cut-off events. [2022-03-15 20:03:23,306 INFO L130 PetriNetUnfolder]: For 1136/1136 co-relation queries the response was YES. [2022-03-15 20:03:23,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5906 conditions, 4821 events. 1051/4821 cut-off events. For 1136/1136 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 38849 event pairs, 522 based on Foata normal form. 0/4273 useless extension candidates. Maximal degree in co-relation 2913. Up to 1024 conditions per place. [2022-03-15 20:03:23,361 INFO L116 LiptonReduction]: Number of co-enabled transitions 4800 [2022-03-15 20:03:24,379 INFO L131 LiptonReduction]: Checked pairs total: 7070 [2022-03-15 20:03:24,379 INFO L133 LiptonReduction]: Total number of compositions: 78 [2022-03-15 20:03:24,380 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 35 transitions, 190 flow [2022-03-15 20:03:24,498 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2810 states, 2800 states have (on average 4.479642857142857) internal successors, (12543), 2809 states have internal predecessors, (12543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:24,501 INFO L276 IsEmpty]: Start isEmpty. Operand has 2810 states, 2800 states have (on average 4.479642857142857) internal successors, (12543), 2809 states have internal predecessors, (12543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:24,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-03-15 20:03:24,502 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:24,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2022-03-15 20:03:24,502 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:24,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:24,502 INFO L85 PathProgramCache]: Analyzing trace with hash 43183, now seen corresponding path program 1 times [2022-03-15 20:03:24,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:24,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646967616] [2022-03-15 20:03:24,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:24,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:24,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:24,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:24,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646967616] [2022-03-15 20:03:24,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646967616] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:03:24,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:03:24,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:03:24,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2058546115] [2022-03-15 20:03:24,512 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:24,512 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:24,513 INFO L252 McrAutomatonBuilder]: Finished intersection with 3 states and 2 transitions. [2022-03-15 20:03:24,513 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:24,513 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:24,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:03:24,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:24,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:03:24,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:24,517 INFO L87 Difference]: Start difference. First operand has 2810 states, 2800 states have (on average 4.479642857142857) internal successors, (12543), 2809 states have internal predecessors, (12543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:24,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:24,549 INFO L93 Difference]: Finished difference Result 2801 states and 12498 transitions. [2022-03-15 20:03:24,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:03:24,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-03-15 20:03:24,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:24,557 INFO L225 Difference]: With dead ends: 2801 [2022-03-15 20:03:24,558 INFO L226 Difference]: Without dead ends: 2801 [2022-03-15 20:03:24,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:24,558 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:24,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 4 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:24,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2022-03-15 20:03:24,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2801. [2022-03-15 20:03:24,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2801 states, 2792 states have (on average 4.476361031518625) internal successors, (12498), 2800 states have internal predecessors, (12498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:24,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 12498 transitions. [2022-03-15 20:03:24,619 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 12498 transitions. Word has length 2 [2022-03-15 20:03:24,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:24,619 INFO L470 AbstractCegarLoop]: Abstraction has 2801 states and 12498 transitions. [2022-03-15 20:03:24,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:24,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 12498 transitions. [2022-03-15 20:03:24,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-03-15 20:03:24,620 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:24,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:24,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-15 20:03:24,620 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:24,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:24,620 INFO L85 PathProgramCache]: Analyzing trace with hash 85973101, now seen corresponding path program 1 times [2022-03-15 20:03:24,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:24,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197783456] [2022-03-15 20:03:24,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:24,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:24,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:24,635 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:24,635 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197783456] [2022-03-15 20:03:24,635 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197783456] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:24,635 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33172616] [2022-03-15 20:03:24,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:24,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:24,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:24,636 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:24,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-03-15 20:03:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:24,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:03:24,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:24,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:24,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:24,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:24,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33172616] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:24,766 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:24,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2022-03-15 20:03:24,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [677905768] [2022-03-15 20:03:24,766 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:24,766 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:24,767 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 11 transitions. [2022-03-15 20:03:24,767 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:24,773 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:24,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 20:03:24,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:24,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 20:03:24,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-15 20:03:24,774 INFO L87 Difference]: Start difference. First operand 2801 states and 12498 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:24,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:24,814 INFO L93 Difference]: Finished difference Result 2800 states and 12497 transitions. [2022-03-15 20:03:24,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 20:03:24,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-03-15 20:03:24,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:24,827 INFO L225 Difference]: With dead ends: 2800 [2022-03-15 20:03:24,827 INFO L226 Difference]: Without dead ends: 2800 [2022-03-15 20:03:24,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-15 20:03:24,828 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:24,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 6 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:24,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states. [2022-03-15 20:03:24,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 2800. [2022-03-15 20:03:24,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2800 states, 2792 states have (on average 4.476002865329513) internal successors, (12497), 2799 states have internal predecessors, (12497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:24,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2800 states to 2800 states and 12497 transitions. [2022-03-15 20:03:24,882 INFO L78 Accepts]: Start accepts. Automaton has 2800 states and 12497 transitions. Word has length 7 [2022-03-15 20:03:24,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:24,882 INFO L470 AbstractCegarLoop]: Abstraction has 2800 states and 12497 transitions. [2022-03-15 20:03:24,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:24,882 INFO L276 IsEmpty]: Start isEmpty. Operand 2800 states and 12497 transitions. [2022-03-15 20:03:24,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:03:24,883 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:24,883 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:03:24,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:25,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:25,099 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:25,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:25,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1222682802, now seen corresponding path program 1 times [2022-03-15 20:03:25,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:25,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952473222] [2022-03-15 20:03:25,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:25,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:25,126 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:25,126 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:25,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952473222] [2022-03-15 20:03:25,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952473222] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:25,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563705492] [2022-03-15 20:03:25,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:25,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:25,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:25,140 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:25,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-03-15 20:03:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:25,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:03:25,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:25,246 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:25,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:25,283 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:25,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563705492] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:25,283 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:25,283 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2022-03-15 20:03:25,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1169337269] [2022-03-15 20:03:25,284 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:25,284 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:25,285 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 23 transitions. [2022-03-15 20:03:25,285 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:25,309 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [22659#(<= (+ |threadThread1of8ForFork0_#in~arg.offset| |threadThread1of8ForFork0_#in~arg.base|) 1)] [2022-03-15 20:03:25,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:03:25,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:25,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:03:25,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-15 20:03:25,310 INFO L87 Difference]: Start difference. First operand 2800 states and 12497 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:25,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:25,380 INFO L93 Difference]: Finished difference Result 4155 states and 17596 transitions. [2022-03-15 20:03:25,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:03:25,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:03:25,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:25,391 INFO L225 Difference]: With dead ends: 4155 [2022-03-15 20:03:25,391 INFO L226 Difference]: Without dead ends: 4155 [2022-03-15 20:03:25,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:25,392 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 48 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:25,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 6 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:25,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2022-03-15 20:03:25,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 3654. [2022-03-15 20:03:25,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3654 states, 3646 states have (on average 4.346132748217224) internal successors, (15846), 3653 states have internal predecessors, (15846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:25,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 15846 transitions. [2022-03-15 20:03:25,503 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 15846 transitions. Word has length 11 [2022-03-15 20:03:25,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:25,503 INFO L470 AbstractCegarLoop]: Abstraction has 3654 states and 15846 transitions. [2022-03-15 20:03:25,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:25,503 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 15846 transitions. [2022-03-15 20:03:25,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:03:25,503 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:25,504 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:03:25,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2022-03-15 20:03:25,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2022-03-15 20:03:25,719 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:25,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:25,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1591772150, now seen corresponding path program 1 times [2022-03-15 20:03:25,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:25,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333675069] [2022-03-15 20:03:25,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:25,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:25,751 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:25,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:25,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333675069] [2022-03-15 20:03:25,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333675069] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:25,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144356194] [2022-03-15 20:03:25,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:25,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:25,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:25,752 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:25,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-03-15 20:03:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:25,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:25,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:25,884 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:25,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:25,926 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:25,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144356194] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:25,927 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:25,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 10 [2022-03-15 20:03:25,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1965518639] [2022-03-15 20:03:25,927 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:25,927 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:25,928 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 15 transitions. [2022-03-15 20:03:25,928 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:25,936 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:25,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 20:03:25,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:25,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 20:03:25,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-15 20:03:25,938 INFO L87 Difference]: Start difference. First operand 3654 states and 15846 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:25,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:25,994 INFO L93 Difference]: Finished difference Result 3652 states and 15843 transitions. [2022-03-15 20:03:25,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 20:03:25,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:03:25,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:26,005 INFO L225 Difference]: With dead ends: 3652 [2022-03-15 20:03:26,005 INFO L226 Difference]: Without dead ends: 3652 [2022-03-15 20:03:26,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-15 20:03:26,005 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 15 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:26,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 7 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:26,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2022-03-15 20:03:26,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 3652. [2022-03-15 20:03:26,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 3645 states have (on average 4.3465020576131685) internal successors, (15843), 3651 states have internal predecessors, (15843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:26,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 15843 transitions. [2022-03-15 20:03:26,069 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 15843 transitions. Word has length 11 [2022-03-15 20:03:26,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:26,070 INFO L470 AbstractCegarLoop]: Abstraction has 3652 states and 15843 transitions. [2022-03-15 20:03:26,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:26,070 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 15843 transitions. [2022-03-15 20:03:26,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-15 20:03:26,070 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:26,070 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:26,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:26,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:26,286 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:26,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:26,286 INFO L85 PathProgramCache]: Analyzing trace with hash -822367698, now seen corresponding path program 1 times [2022-03-15 20:03:26,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:26,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062692039] [2022-03-15 20:03:26,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:26,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:26,308 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:26,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:26,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062692039] [2022-03-15 20:03:26,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062692039] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:26,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401824522] [2022-03-15 20:03:26,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:26,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:26,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:26,310 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:26,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-03-15 20:03:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:26,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:26,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:26,437 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:26,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:26,486 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:26,487 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401824522] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:26,487 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:26,487 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2022-03-15 20:03:26,487 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [401456730] [2022-03-15 20:03:26,487 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:26,488 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:26,489 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 27 transitions. [2022-03-15 20:03:26,489 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:26,513 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:26,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:03:26,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:26,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:03:26,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 20:03:26,514 INFO L87 Difference]: Start difference. First operand 3652 states and 15843 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:26,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:26,574 INFO L93 Difference]: Finished difference Result 3646 states and 15830 transitions. [2022-03-15 20:03:26,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:03:26,574 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-03-15 20:03:26,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:26,585 INFO L225 Difference]: With dead ends: 3646 [2022-03-15 20:03:26,585 INFO L226 Difference]: Without dead ends: 3646 [2022-03-15 20:03:26,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 20:03:26,585 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:26,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 9 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:26,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3646 states. [2022-03-15 20:03:26,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3646 to 3646. [2022-03-15 20:03:26,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3640 states have (on average 4.3489010989010985) internal successors, (15830), 3645 states have internal predecessors, (15830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:26,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 15830 transitions. [2022-03-15 20:03:26,679 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 15830 transitions. Word has length 15 [2022-03-15 20:03:26,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:26,680 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 15830 transitions. [2022-03-15 20:03:26,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:26,680 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 15830 transitions. [2022-03-15 20:03:26,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 20:03:26,680 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:26,680 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:26,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2022-03-15 20:03:26,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2022-03-15 20:03:26,894 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:26,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:26,894 INFO L85 PathProgramCache]: Analyzing trace with hash 957127345, now seen corresponding path program 1 times [2022-03-15 20:03:26,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:26,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576431351] [2022-03-15 20:03:26,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:26,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:26,927 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:26,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:26,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576431351] [2022-03-15 20:03:26,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576431351] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:26,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156847500] [2022-03-15 20:03:26,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:26,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:26,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:26,928 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:26,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-03-15 20:03:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:27,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:27,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:27,065 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 20:03:27,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:27,122 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 20:03:27,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156847500] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:27,122 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:27,122 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 12 [2022-03-15 20:03:27,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [8160260] [2022-03-15 20:03:27,122 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:27,123 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:27,125 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 39 transitions. [2022-03-15 20:03:27,125 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:27,166 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:27,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 20:03:27,166 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:27,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 20:03:27,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:27,167 INFO L87 Difference]: Start difference. First operand 3646 states and 15830 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:27,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:27,229 INFO L93 Difference]: Finished difference Result 3632 states and 15791 transitions. [2022-03-15 20:03:27,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 20:03:27,230 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-03-15 20:03:27,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:27,240 INFO L225 Difference]: With dead ends: 3632 [2022-03-15 20:03:27,240 INFO L226 Difference]: Without dead ends: 3632 [2022-03-15 20:03:27,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:27,241 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 35 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:27,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 9 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:27,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3632 states. [2022-03-15 20:03:27,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3632 to 3632. [2022-03-15 20:03:27,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3632 states, 3627 states have (on average 4.353735869864902) internal successors, (15791), 3631 states have internal predecessors, (15791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:27,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3632 states to 3632 states and 15791 transitions. [2022-03-15 20:03:27,315 INFO L78 Accepts]: Start accepts. Automaton has 3632 states and 15791 transitions. Word has length 19 [2022-03-15 20:03:27,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:27,315 INFO L470 AbstractCegarLoop]: Abstraction has 3632 states and 15791 transitions. [2022-03-15 20:03:27,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:27,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3632 states and 15791 transitions. [2022-03-15 20:03:27,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-03-15 20:03:27,316 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:27,316 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:27,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:27,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2022-03-15 20:03:27,530 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:27,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:27,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1482425875, now seen corresponding path program 1 times [2022-03-15 20:03:27,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:27,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977593531] [2022-03-15 20:03:27,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:27,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:27,593 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:27,594 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:27,594 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977593531] [2022-03-15 20:03:27,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977593531] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:27,594 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912112141] [2022-03-15 20:03:27,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:27,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:27,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:27,595 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:27,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2022-03-15 20:03:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:27,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:27,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:27,775 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-15 20:03:27,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:27,838 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-15 20:03:27,838 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912112141] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:27,838 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:27,838 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 13 [2022-03-15 20:03:27,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [26169073] [2022-03-15 20:03:27,838 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:27,839 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:27,842 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 51 transitions. [2022-03-15 20:03:27,842 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:27,895 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:27,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 20:03:27,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:27,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 20:03:27,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-03-15 20:03:27,896 INFO L87 Difference]: Start difference. First operand 3632 states and 15791 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:27,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:27,996 INFO L93 Difference]: Finished difference Result 3602 states and 15690 transitions. [2022-03-15 20:03:27,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 20:03:27,997 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-03-15 20:03:27,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:28,008 INFO L225 Difference]: With dead ends: 3602 [2022-03-15 20:03:28,008 INFO L226 Difference]: Without dead ends: 3602 [2022-03-15 20:03:28,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-03-15 20:03:28,008 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 49 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:28,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 10 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:28,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3602 states. [2022-03-15 20:03:28,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3602 to 3602. [2022-03-15 20:03:28,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3602 states, 3598 states have (on average 4.360755975541967) internal successors, (15690), 3601 states have internal predecessors, (15690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:28,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3602 states to 3602 states and 15690 transitions. [2022-03-15 20:03:28,088 INFO L78 Accepts]: Start accepts. Automaton has 3602 states and 15690 transitions. Word has length 23 [2022-03-15 20:03:28,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:28,088 INFO L470 AbstractCegarLoop]: Abstraction has 3602 states and 15690 transitions. [2022-03-15 20:03:28,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:28,089 INFO L276 IsEmpty]: Start isEmpty. Operand 3602 states and 15690 transitions. [2022-03-15 20:03:28,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 20:03:28,090 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:28,090 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:28,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2022-03-15 20:03:28,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2022-03-15 20:03:28,298 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:28,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:28,298 INFO L85 PathProgramCache]: Analyzing trace with hash 560162004, now seen corresponding path program 1 times [2022-03-15 20:03:28,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:28,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048937848] [2022-03-15 20:03:28,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:28,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:28,370 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:28,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:28,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048937848] [2022-03-15 20:03:28,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048937848] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:28,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664963840] [2022-03-15 20:03:28,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:28,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:28,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:28,387 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:28,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2022-03-15 20:03:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:28,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:28,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:28,580 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-15 20:03:28,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:28,686 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-15 20:03:28,686 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664963840] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:28,686 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:28,686 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 14 [2022-03-15 20:03:28,686 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1944443588] [2022-03-15 20:03:28,686 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:28,688 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:28,692 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 63 transitions. [2022-03-15 20:03:28,692 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:28,768 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:28,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 20:03:28,768 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:28,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 20:03:28,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-03-15 20:03:28,770 INFO L87 Difference]: Start difference. First operand 3602 states and 15690 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:28,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:28,844 INFO L93 Difference]: Finished difference Result 3540 states and 15447 transitions. [2022-03-15 20:03:28,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 20:03:28,845 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-03-15 20:03:28,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:28,854 INFO L225 Difference]: With dead ends: 3540 [2022-03-15 20:03:28,854 INFO L226 Difference]: Without dead ends: 3540 [2022-03-15 20:03:28,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-03-15 20:03:28,856 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 66 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:28,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 11 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:03:28,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3540 states. [2022-03-15 20:03:28,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3540 to 3540. [2022-03-15 20:03:28,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3540 states, 3537 states have (on average 4.367260390161153) internal successors, (15447), 3539 states have internal predecessors, (15447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:28,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 15447 transitions. [2022-03-15 20:03:28,952 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 15447 transitions. Word has length 27 [2022-03-15 20:03:28,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:28,952 INFO L470 AbstractCegarLoop]: Abstraction has 3540 states and 15447 transitions. [2022-03-15 20:03:28,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:28,952 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 15447 transitions. [2022-03-15 20:03:28,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-15 20:03:28,954 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:28,954 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:28,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:29,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-03-15 20:03:29,171 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:29,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:29,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1177284468, now seen corresponding path program 1 times [2022-03-15 20:03:29,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:29,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472139594] [2022-03-15 20:03:29,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:29,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:29,230 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:29,230 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:29,230 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472139594] [2022-03-15 20:03:29,230 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472139594] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:29,230 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191827487] [2022-03-15 20:03:29,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:29,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:29,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:29,232 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:29,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2022-03-15 20:03:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:29,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:29,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:29,378 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-03-15 20:03:29,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:29,456 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-03-15 20:03:29,456 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191827487] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:29,456 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:29,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 15 [2022-03-15 20:03:29,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1566633417] [2022-03-15 20:03:29,456 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:29,458 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:29,464 INFO L252 McrAutomatonBuilder]: Finished intersection with 54 states and 75 transitions. [2022-03-15 20:03:29,464 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:29,547 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:29,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 20:03:29,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:29,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 20:03:29,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-15 20:03:29,548 INFO L87 Difference]: Start difference. First operand 3540 states and 15447 transitions. Second operand has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:29,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:29,627 INFO L93 Difference]: Finished difference Result 3414 states and 14886 transitions. [2022-03-15 20:03:29,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 20:03:29,627 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-03-15 20:03:29,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:29,686 INFO L225 Difference]: With dead ends: 3414 [2022-03-15 20:03:29,686 INFO L226 Difference]: Without dead ends: 3414 [2022-03-15 20:03:29,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-15 20:03:29,686 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 76 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:29,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 12 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:03:29,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3414 states. [2022-03-15 20:03:29,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3414 to 3414. [2022-03-15 20:03:29,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3414 states, 3412 states have (on average 4.362837045720985) internal successors, (14886), 3413 states have internal predecessors, (14886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:29,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3414 states to 3414 states and 14886 transitions. [2022-03-15 20:03:29,738 INFO L78 Accepts]: Start accepts. Automaton has 3414 states and 14886 transitions. Word has length 31 [2022-03-15 20:03:29,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:29,739 INFO L470 AbstractCegarLoop]: Abstraction has 3414 states and 14886 transitions. [2022-03-15 20:03:29,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:29,739 INFO L276 IsEmpty]: Start isEmpty. Operand 3414 states and 14886 transitions. [2022-03-15 20:03:29,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-15 20:03:29,743 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:29,743 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:29,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2022-03-15 20:03:29,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2022-03-15 20:03:29,959 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:29,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:29,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1752079987, now seen corresponding path program 1 times [2022-03-15 20:03:29,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:29,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000311574] [2022-03-15 20:03:29,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:29,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:30,022 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:30,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:30,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000311574] [2022-03-15 20:03:30,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000311574] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:30,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380405937] [2022-03-15 20:03:30,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:30,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:30,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:30,040 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:30,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2022-03-15 20:03:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:30,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:30,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:30,209 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-15 20:03:30,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:30,280 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-15 20:03:30,280 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380405937] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:30,281 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:30,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 16 [2022-03-15 20:03:30,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2106327253] [2022-03-15 20:03:30,281 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:30,284 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:30,293 INFO L252 McrAutomatonBuilder]: Finished intersection with 62 states and 87 transitions. [2022-03-15 20:03:30,293 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:30,396 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:30,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 20:03:30,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:30,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 20:03:30,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2022-03-15 20:03:30,397 INFO L87 Difference]: Start difference. First operand 3414 states and 14886 transitions. Second operand has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:30,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:30,462 INFO L93 Difference]: Finished difference Result 3160 states and 13623 transitions. [2022-03-15 20:03:30,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 20:03:30,462 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-03-15 20:03:30,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:30,470 INFO L225 Difference]: With dead ends: 3160 [2022-03-15 20:03:30,470 INFO L226 Difference]: Without dead ends: 3160 [2022-03-15 20:03:30,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2022-03-15 20:03:30,472 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 109 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:30,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 11 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:30,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3160 states. [2022-03-15 20:03:30,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3160 to 2299. [2022-03-15 20:03:30,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 2298 states have (on average 4.455613577023499) internal successors, (10239), 2298 states have internal predecessors, (10239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:30,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 10239 transitions. [2022-03-15 20:03:30,522 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 10239 transitions. Word has length 35 [2022-03-15 20:03:30,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:30,522 INFO L470 AbstractCegarLoop]: Abstraction has 2299 states and 10239 transitions. [2022-03-15 20:03:30,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:30,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 10239 transitions. [2022-03-15 20:03:30,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-15 20:03:30,526 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:30,526 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:30,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:30,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:30,739 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:30,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:30,739 INFO L85 PathProgramCache]: Analyzing trace with hash -591820522, now seen corresponding path program 1 times [2022-03-15 20:03:30,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:30,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882634777] [2022-03-15 20:03:30,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:30,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:03:30,750 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 20:03:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:03:30,761 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 20:03:30,762 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 20:03:30,762 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-03-15 20:03:30,762 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-03-15 20:03:30,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-15 20:03:30,762 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:30,762 WARN L235 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-15 20:03:30,762 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2022-03-15 20:03:30,773 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,773 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,773 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,773 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,773 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,773 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,773 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,773 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,773 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,773 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,773 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,773 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,773 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,774 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,775 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,775 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,775 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,775 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,775 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,775 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,775 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,775 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,775 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,775 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,775 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,775 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,775 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,775 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,775 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,775 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,776 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,776 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,776 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,776 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,776 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,776 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,776 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,776 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,776 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,776 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,776 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,776 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,776 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,776 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,776 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,776 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,776 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,777 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,778 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,779 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,779 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,779 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,779 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,779 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,779 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,779 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,779 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,779 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,779 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,779 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,779 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,780 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,781 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,781 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,781 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,781 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,781 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,781 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,781 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,781 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,781 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,781 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,781 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,781 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,781 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,781 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,781 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,781 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,781 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,781 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,782 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,783 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,783 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,783 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,783 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,783 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,783 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,783 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,783 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,783 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,784 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,784 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,784 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,784 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,784 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,784 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,784 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,784 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,784 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,784 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,784 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,784 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,784 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,785 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,785 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,785 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,785 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,785 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,785 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,785 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,785 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,785 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,785 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,785 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,785 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,785 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,785 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,786 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,786 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,786 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,786 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,786 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,786 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,786 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,786 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,786 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,786 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:30,787 INFO L148 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-03-15 20:03:30,789 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:03:30,789 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:03:30,789 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-15 20:03:30,790 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:03:30,790 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 115 transitions, 374 flow [2022-03-15 20:03:30,790 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 115 transitions, 374 flow [2022-03-15 20:03:30,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 115 transitions, 374 flow [2022-03-15 20:03:31,686 INFO L129 PetriNetUnfolder]: 2334/9708 cut-off events. [2022-03-15 20:03:31,686 INFO L130 PetriNetUnfolder]: For 2460/2460 co-relation queries the response was YES. [2022-03-15 20:03:31,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12085 conditions, 9708 events. 2334/9708 cut-off events. For 2460/2460 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 91119 event pairs, 1291 based on Foata normal form. 0/8644 useless extension candidates. Maximal degree in co-relation 5891. Up to 2304 conditions per place. [2022-03-15 20:03:31,840 INFO L116 LiptonReduction]: Number of co-enabled transitions 5760 [2022-03-15 20:03:33,280 INFO L131 LiptonReduction]: Checked pairs total: 10747 [2022-03-15 20:03:33,280 INFO L133 LiptonReduction]: Total number of compositions: 82 [2022-03-15 20:03:33,280 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 38 transitions, 220 flow [2022-03-15 20:03:33,545 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5626 states, 5615 states have (on average 4.969367764915405) internal successors, (27903), 5625 states have internal predecessors, (27903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:33,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 5626 states, 5615 states have (on average 4.969367764915405) internal successors, (27903), 5625 states have internal predecessors, (27903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:33,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-03-15 20:03:33,554 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:33,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2022-03-15 20:03:33,554 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:33,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:33,555 INFO L85 PathProgramCache]: Analyzing trace with hash 49699, now seen corresponding path program 1 times [2022-03-15 20:03:33,556 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:33,556 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397379131] [2022-03-15 20:03:33,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:33,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:33,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:33,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:33,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397379131] [2022-03-15 20:03:33,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397379131] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:03:33,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:03:33,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:03:33,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [145613382] [2022-03-15 20:03:33,566 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:33,566 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:33,566 INFO L252 McrAutomatonBuilder]: Finished intersection with 3 states and 2 transitions. [2022-03-15 20:03:33,566 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:33,566 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:33,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:03:33,566 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:33,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:03:33,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:33,576 INFO L87 Difference]: Start difference. First operand has 5626 states, 5615 states have (on average 4.969367764915405) internal successors, (27903), 5625 states have internal predecessors, (27903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:33,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:33,630 INFO L93 Difference]: Finished difference Result 5625 states and 27902 transitions. [2022-03-15 20:03:33,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:03:33,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-03-15 20:03:33,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:33,650 INFO L225 Difference]: With dead ends: 5625 [2022-03-15 20:03:33,651 INFO L226 Difference]: Without dead ends: 5625 [2022-03-15 20:03:33,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:33,651 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:33,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:33,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5625 states. [2022-03-15 20:03:33,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5625 to 5625. [2022-03-15 20:03:33,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5625 states, 5615 states have (on average 4.969189670525378) internal successors, (27902), 5624 states have internal predecessors, (27902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:33,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5625 states to 5625 states and 27902 transitions. [2022-03-15 20:03:33,797 INFO L78 Accepts]: Start accepts. Automaton has 5625 states and 27902 transitions. Word has length 2 [2022-03-15 20:03:33,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:33,797 INFO L470 AbstractCegarLoop]: Abstraction has 5625 states and 27902 transitions. [2022-03-15 20:03:33,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:33,797 INFO L276 IsEmpty]: Start isEmpty. Operand 5625 states and 27902 transitions. [2022-03-15 20:03:33,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-03-15 20:03:33,797 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:33,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-03-15 20:03:33,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-15 20:03:33,798 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:33,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:33,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1282430947, now seen corresponding path program 1 times [2022-03-15 20:03:33,799 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:33,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804575426] [2022-03-15 20:03:33,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:33,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:33,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 20:03:33,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:33,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804575426] [2022-03-15 20:03:33,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804575426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:03:33,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:03:33,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:03:33,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1734737246] [2022-03-15 20:03:33,891 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:33,892 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:33,892 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2022-03-15 20:03:33,892 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:33,892 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:33,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:03:33,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:33,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:03:33,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:33,892 INFO L87 Difference]: Start difference. First operand 5625 states and 27902 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:33,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:33,994 INFO L93 Difference]: Finished difference Result 5616 states and 27848 transitions. [2022-03-15 20:03:33,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:03:33,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-03-15 20:03:33,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:34,012 INFO L225 Difference]: With dead ends: 5616 [2022-03-15 20:03:34,012 INFO L226 Difference]: Without dead ends: 5616 [2022-03-15 20:03:34,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:34,012 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:34,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 4 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:34,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5616 states. [2022-03-15 20:03:34,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5616 to 5616. [2022-03-15 20:03:34,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5616 states, 5606 states have (on average 4.967534784159829) internal successors, (27848), 5615 states have internal predecessors, (27848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:34,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5616 states to 5616 states and 27848 transitions. [2022-03-15 20:03:34,131 INFO L78 Accepts]: Start accepts. Automaton has 5616 states and 27848 transitions. Word has length 6 [2022-03-15 20:03:34,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:34,132 INFO L470 AbstractCegarLoop]: Abstraction has 5616 states and 27848 transitions. [2022-03-15 20:03:34,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:34,132 INFO L276 IsEmpty]: Start isEmpty. Operand 5616 states and 27848 transitions. [2022-03-15 20:03:34,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-03-15 20:03:34,132 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:34,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:34,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-15 20:03:34,132 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:34,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:34,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1096605118, now seen corresponding path program 1 times [2022-03-15 20:03:34,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:34,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276606013] [2022-03-15 20:03:34,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:34,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:34,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:34,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:34,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276606013] [2022-03-15 20:03:34,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276606013] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:34,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282245539] [2022-03-15 20:03:34,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:34,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:34,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:34,146 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:34,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2022-03-15 20:03:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:34,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:03:34,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:34,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:34,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:34,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:34,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282245539] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:34,298 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:34,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2022-03-15 20:03:34,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [728207622] [2022-03-15 20:03:34,298 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:34,298 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:34,299 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 11 transitions. [2022-03-15 20:03:34,299 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:34,317 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:34,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 20:03:34,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:34,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 20:03:34,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-15 20:03:34,318 INFO L87 Difference]: Start difference. First operand 5616 states and 27848 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:34,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:34,464 INFO L93 Difference]: Finished difference Result 5615 states and 27847 transitions. [2022-03-15 20:03:34,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 20:03:34,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-03-15 20:03:34,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:34,483 INFO L225 Difference]: With dead ends: 5615 [2022-03-15 20:03:34,483 INFO L226 Difference]: Without dead ends: 5615 [2022-03-15 20:03:34,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-15 20:03:34,484 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:34,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 6 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:03:34,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5615 states. [2022-03-15 20:03:34,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5615 to 5615. [2022-03-15 20:03:34,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5615 states, 5606 states have (on average 4.967356403853015) internal successors, (27847), 5614 states have internal predecessors, (27847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:34,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5615 states to 5615 states and 27847 transitions. [2022-03-15 20:03:34,610 INFO L78 Accepts]: Start accepts. Automaton has 5615 states and 27847 transitions. Word has length 7 [2022-03-15 20:03:34,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:34,610 INFO L470 AbstractCegarLoop]: Abstraction has 5615 states and 27847 transitions. [2022-03-15 20:03:34,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:34,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5615 states and 27847 transitions. [2022-03-15 20:03:34,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:03:34,611 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:34,611 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:03:34,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:34,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2022-03-15 20:03:34,826 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:34,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:34,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1682483941, now seen corresponding path program 1 times [2022-03-15 20:03:34,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:34,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241627151] [2022-03-15 20:03:34,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:34,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:34,845 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:34,845 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:34,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241627151] [2022-03-15 20:03:34,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241627151] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:34,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108767976] [2022-03-15 20:03:34,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:34,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:34,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:34,846 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:34,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2022-03-15 20:03:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:34,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:03:34,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:34,992 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:34,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:35,017 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:35,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108767976] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:35,017 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:35,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2022-03-15 20:03:35,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [895676359] [2022-03-15 20:03:35,018 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:35,018 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:35,019 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 23 transitions. [2022-03-15 20:03:35,019 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:35,073 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [62067#(<= (+ |threadThread1of9ForFork0_#in~arg.base| |threadThread1of9ForFork0_#in~arg.offset|) 1)] [2022-03-15 20:03:35,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:03:35,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:35,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:03:35,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-15 20:03:35,074 INFO L87 Difference]: Start difference. First operand 5615 states and 27847 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:35,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:35,173 INFO L93 Difference]: Finished difference Result 8372 states and 39612 transitions. [2022-03-15 20:03:35,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:03:35,173 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:03:35,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:35,200 INFO L225 Difference]: With dead ends: 8372 [2022-03-15 20:03:35,201 INFO L226 Difference]: Without dead ends: 8372 [2022-03-15 20:03:35,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:35,201 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 87 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:35,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 6 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:35,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8372 states. [2022-03-15 20:03:35,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8372 to 7360. [2022-03-15 20:03:35,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7360 states, 7351 states have (on average 4.838525370697864) internal successors, (35568), 7359 states have internal predecessors, (35568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:35,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7360 states to 7360 states and 35568 transitions. [2022-03-15 20:03:35,431 INFO L78 Accepts]: Start accepts. Automaton has 7360 states and 35568 transitions. Word has length 11 [2022-03-15 20:03:35,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:35,431 INFO L470 AbstractCegarLoop]: Abstraction has 7360 states and 35568 transitions. [2022-03-15 20:03:35,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:35,431 INFO L276 IsEmpty]: Start isEmpty. Operand 7360 states and 35568 transitions. [2022-03-15 20:03:35,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:03:35,431 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:35,432 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:03:35,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:35,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:35,647 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:35,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:35,648 INFO L85 PathProgramCache]: Analyzing trace with hash -2075703836, now seen corresponding path program 1 times [2022-03-15 20:03:35,649 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:35,649 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878102270] [2022-03-15 20:03:35,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:35,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:35,664 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:35,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:35,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878102270] [2022-03-15 20:03:35,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878102270] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:35,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766640480] [2022-03-15 20:03:35,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:35,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:35,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:35,666 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:35,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2022-03-15 20:03:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:35,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:35,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:35,801 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:35,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:35,839 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:35,839 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766640480] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:35,839 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:35,839 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 10 [2022-03-15 20:03:35,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1491462166] [2022-03-15 20:03:35,840 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:35,840 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:35,840 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 15 transitions. [2022-03-15 20:03:35,841 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:35,848 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:35,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 20:03:35,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:35,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 20:03:35,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-15 20:03:35,849 INFO L87 Difference]: Start difference. First operand 7360 states and 35568 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:35,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:35,917 INFO L93 Difference]: Finished difference Result 7358 states and 35565 transitions. [2022-03-15 20:03:35,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 20:03:35,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:03:35,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:35,939 INFO L225 Difference]: With dead ends: 7358 [2022-03-15 20:03:35,939 INFO L226 Difference]: Without dead ends: 7358 [2022-03-15 20:03:35,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-15 20:03:35,940 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 14 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:35,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 7 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:35,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7358 states. [2022-03-15 20:03:36,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7358 to 7358. [2022-03-15 20:03:36,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7358 states, 7350 states have (on average 4.838775510204082) internal successors, (35565), 7357 states have internal predecessors, (35565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:36,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7358 states to 7358 states and 35565 transitions. [2022-03-15 20:03:36,162 INFO L78 Accepts]: Start accepts. Automaton has 7358 states and 35565 transitions. Word has length 11 [2022-03-15 20:03:36,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:36,162 INFO L470 AbstractCegarLoop]: Abstraction has 7358 states and 35565 transitions. [2022-03-15 20:03:36,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:36,162 INFO L276 IsEmpty]: Start isEmpty. Operand 7358 states and 35565 transitions. [2022-03-15 20:03:36,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-15 20:03:36,162 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:36,162 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:36,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:36,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2022-03-15 20:03:36,375 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:36,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:36,376 INFO L85 PathProgramCache]: Analyzing trace with hash -444773348, now seen corresponding path program 1 times [2022-03-15 20:03:36,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:36,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835917338] [2022-03-15 20:03:36,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:36,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:36,413 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:36,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:36,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835917338] [2022-03-15 20:03:36,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835917338] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:36,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972104954] [2022-03-15 20:03:36,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:36,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:36,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:36,428 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:36,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2022-03-15 20:03:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:36,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:36,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:36,591 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:36,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:36,636 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:36,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972104954] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:36,636 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:36,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2022-03-15 20:03:36,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1468103377] [2022-03-15 20:03:36,637 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:36,637 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:36,638 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 27 transitions. [2022-03-15 20:03:36,638 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:36,664 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:36,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:03:36,664 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:36,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:03:36,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 20:03:36,665 INFO L87 Difference]: Start difference. First operand 7358 states and 35565 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:36,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:36,743 INFO L93 Difference]: Finished difference Result 7352 states and 35552 transitions. [2022-03-15 20:03:36,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:03:36,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-03-15 20:03:36,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:36,766 INFO L225 Difference]: With dead ends: 7352 [2022-03-15 20:03:36,766 INFO L226 Difference]: Without dead ends: 7352 [2022-03-15 20:03:36,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 20:03:36,767 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 24 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:36,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 8 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:36,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7352 states. [2022-03-15 20:03:36,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7352 to 7352. [2022-03-15 20:03:36,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7352 states, 7345 states have (on average 4.840299523485364) internal successors, (35552), 7351 states have internal predecessors, (35552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:37,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7352 states to 7352 states and 35552 transitions. [2022-03-15 20:03:37,013 INFO L78 Accepts]: Start accepts. Automaton has 7352 states and 35552 transitions. Word has length 15 [2022-03-15 20:03:37,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:37,014 INFO L470 AbstractCegarLoop]: Abstraction has 7352 states and 35552 transitions. [2022-03-15 20:03:37,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:37,014 INFO L276 IsEmpty]: Start isEmpty. Operand 7352 states and 35552 transitions. [2022-03-15 20:03:37,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 20:03:37,014 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:37,014 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:37,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:37,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:37,231 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:37,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:37,231 INFO L85 PathProgramCache]: Analyzing trace with hash 324397747, now seen corresponding path program 1 times [2022-03-15 20:03:37,232 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:37,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694460050] [2022-03-15 20:03:37,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:37,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:37,264 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:37,264 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:37,264 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694460050] [2022-03-15 20:03:37,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694460050] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:37,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4583320] [2022-03-15 20:03:37,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:37,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:37,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:37,267 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:37,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2022-03-15 20:03:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:37,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:37,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:37,420 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 20:03:37,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:37,476 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 20:03:37,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4583320] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:37,476 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:37,476 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 12 [2022-03-15 20:03:37,476 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2102279311] [2022-03-15 20:03:37,476 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:37,477 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:37,479 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 39 transitions. [2022-03-15 20:03:37,479 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:37,514 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:37,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 20:03:37,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:37,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 20:03:37,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:37,515 INFO L87 Difference]: Start difference. First operand 7352 states and 35552 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:37,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:37,589 INFO L93 Difference]: Finished difference Result 7338 states and 35513 transitions. [2022-03-15 20:03:37,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 20:03:37,589 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-03-15 20:03:37,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:37,613 INFO L225 Difference]: With dead ends: 7338 [2022-03-15 20:03:37,613 INFO L226 Difference]: Without dead ends: 7338 [2022-03-15 20:03:37,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:37,613 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 44 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:37,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 8 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:37,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7338 states. [2022-03-15 20:03:37,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7338 to 7338. [2022-03-15 20:03:37,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7338 states, 7332 states have (on average 4.843562465902892) internal successors, (35513), 7337 states have internal predecessors, (35513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:37,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7338 states to 7338 states and 35513 transitions. [2022-03-15 20:03:37,876 INFO L78 Accepts]: Start accepts. Automaton has 7338 states and 35513 transitions. Word has length 19 [2022-03-15 20:03:37,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:37,876 INFO L470 AbstractCegarLoop]: Abstraction has 7338 states and 35513 transitions. [2022-03-15 20:03:37,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:37,876 INFO L276 IsEmpty]: Start isEmpty. Operand 7338 states and 35513 transitions. [2022-03-15 20:03:37,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-03-15 20:03:37,877 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:37,877 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:37,893 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2022-03-15 20:03:38,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:38,093 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:38,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:38,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1342167593, now seen corresponding path program 1 times [2022-03-15 20:03:38,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:38,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363546841] [2022-03-15 20:03:38,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:38,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:38,145 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:38,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:38,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363546841] [2022-03-15 20:03:38,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363546841] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:38,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921445546] [2022-03-15 20:03:38,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:38,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:38,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:38,147 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:38,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2022-03-15 20:03:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:38,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:38,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:38,330 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-15 20:03:38,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:38,377 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-15 20:03:38,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921445546] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:38,377 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:38,377 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 13 [2022-03-15 20:03:38,377 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [208497300] [2022-03-15 20:03:38,377 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:38,379 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:38,382 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 51 transitions. [2022-03-15 20:03:38,382 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:38,427 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:38,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 20:03:38,428 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:38,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 20:03:38,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-03-15 20:03:38,428 INFO L87 Difference]: Start difference. First operand 7338 states and 35513 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:38,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:38,515 INFO L93 Difference]: Finished difference Result 7308 states and 35412 transitions. [2022-03-15 20:03:38,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 20:03:38,515 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-03-15 20:03:38,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:38,541 INFO L225 Difference]: With dead ends: 7308 [2022-03-15 20:03:38,541 INFO L226 Difference]: Without dead ends: 7308 [2022-03-15 20:03:38,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-03-15 20:03:38,542 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 43 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:38,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 11 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:38,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7308 states. [2022-03-15 20:03:38,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7308 to 7308. [2022-03-15 20:03:38,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7308 states, 7303 states have (on average 4.848966178282898) internal successors, (35412), 7307 states have internal predecessors, (35412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:38,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7308 states to 7308 states and 35412 transitions. [2022-03-15 20:03:38,737 INFO L78 Accepts]: Start accepts. Automaton has 7308 states and 35412 transitions. Word has length 23 [2022-03-15 20:03:38,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:38,737 INFO L470 AbstractCegarLoop]: Abstraction has 7308 states and 35412 transitions. [2022-03-15 20:03:38,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:38,737 INFO L276 IsEmpty]: Start isEmpty. Operand 7308 states and 35412 transitions. [2022-03-15 20:03:38,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 20:03:38,738 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:38,738 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:38,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:38,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2022-03-15 20:03:38,954 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:38,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:38,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1050252030, now seen corresponding path program 1 times [2022-03-15 20:03:38,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:38,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299710883] [2022-03-15 20:03:38,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:38,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:39,002 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:39,002 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:39,002 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299710883] [2022-03-15 20:03:39,002 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299710883] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:39,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244667391] [2022-03-15 20:03:39,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:39,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:39,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:39,004 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:39,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2022-03-15 20:03:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:39,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:39,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:39,167 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-15 20:03:39,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:39,304 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-15 20:03:39,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244667391] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:39,304 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:39,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 14 [2022-03-15 20:03:39,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1336394293] [2022-03-15 20:03:39,304 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:39,306 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:39,310 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 63 transitions. [2022-03-15 20:03:39,310 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:39,386 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:39,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 20:03:39,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:39,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 20:03:39,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-03-15 20:03:39,386 INFO L87 Difference]: Start difference. First operand 7308 states and 35412 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:39,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:39,483 INFO L93 Difference]: Finished difference Result 7246 states and 35169 transitions. [2022-03-15 20:03:39,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 20:03:39,483 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-03-15 20:03:39,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:39,505 INFO L225 Difference]: With dead ends: 7246 [2022-03-15 20:03:39,505 INFO L226 Difference]: Without dead ends: 7246 [2022-03-15 20:03:39,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-03-15 20:03:39,506 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 74 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:39,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 10 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:03:39,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7246 states. [2022-03-15 20:03:39,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7246 to 7246. [2022-03-15 20:03:39,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7246 states, 7242 states have (on average 4.856255178127589) internal successors, (35169), 7245 states have internal predecessors, (35169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:39,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7246 states to 7246 states and 35169 transitions. [2022-03-15 20:03:39,655 INFO L78 Accepts]: Start accepts. Automaton has 7246 states and 35169 transitions. Word has length 27 [2022-03-15 20:03:39,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:39,655 INFO L470 AbstractCegarLoop]: Abstraction has 7246 states and 35169 transitions. [2022-03-15 20:03:39,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:39,655 INFO L276 IsEmpty]: Start isEmpty. Operand 7246 states and 35169 transitions. [2022-03-15 20:03:39,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-15 20:03:39,664 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:39,664 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:39,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2022-03-15 20:03:39,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:39,880 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:39,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:39,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1699827122, now seen corresponding path program 1 times [2022-03-15 20:03:39,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:39,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414893294] [2022-03-15 20:03:39,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:39,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:39,926 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:39,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:39,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414893294] [2022-03-15 20:03:39,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414893294] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:39,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680354174] [2022-03-15 20:03:39,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:39,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:39,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:39,928 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:39,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2022-03-15 20:03:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:40,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:40,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:40,131 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-03-15 20:03:40,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:40,207 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-03-15 20:03:40,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680354174] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:40,207 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:40,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 15 [2022-03-15 20:03:40,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [334120544] [2022-03-15 20:03:40,208 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:40,210 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:40,216 INFO L252 McrAutomatonBuilder]: Finished intersection with 54 states and 75 transitions. [2022-03-15 20:03:40,216 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:40,301 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:40,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 20:03:40,302 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:40,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 20:03:40,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-15 20:03:40,302 INFO L87 Difference]: Start difference. First operand 7246 states and 35169 transitions. Second operand has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:40,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:40,407 INFO L93 Difference]: Finished difference Result 7120 states and 34608 transitions. [2022-03-15 20:03:40,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 20:03:40,407 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-03-15 20:03:40,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:40,431 INFO L225 Difference]: With dead ends: 7120 [2022-03-15 20:03:40,431 INFO L226 Difference]: Without dead ends: 7120 [2022-03-15 20:03:40,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-15 20:03:40,431 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 73 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:40,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 13 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:03:40,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7120 states. [2022-03-15 20:03:40,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7120 to 7120. [2022-03-15 20:03:40,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7120 states, 7117 states have (on average 4.862723057468035) internal successors, (34608), 7119 states have internal predecessors, (34608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:40,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7120 states to 7120 states and 34608 transitions. [2022-03-15 20:03:40,641 INFO L78 Accepts]: Start accepts. Automaton has 7120 states and 34608 transitions. Word has length 31 [2022-03-15 20:03:40,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:40,641 INFO L470 AbstractCegarLoop]: Abstraction has 7120 states and 34608 transitions. [2022-03-15 20:03:40,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:40,641 INFO L276 IsEmpty]: Start isEmpty. Operand 7120 states and 34608 transitions. [2022-03-15 20:03:40,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-15 20:03:40,645 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:40,645 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:40,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2022-03-15 20:03:40,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2022-03-15 20:03:40,851 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:40,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:40,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1618672955, now seen corresponding path program 1 times [2022-03-15 20:03:40,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:40,852 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66023055] [2022-03-15 20:03:40,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:40,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:40,908 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:40,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:40,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66023055] [2022-03-15 20:03:40,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66023055] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:40,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131598863] [2022-03-15 20:03:40,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:40,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:40,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:40,910 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:40,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2022-03-15 20:03:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:41,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:41,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:41,119 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-15 20:03:41,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:41,179 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-15 20:03:41,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131598863] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:41,179 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:41,179 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 16 [2022-03-15 20:03:41,179 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1850348698] [2022-03-15 20:03:41,179 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:41,182 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:41,191 INFO L252 McrAutomatonBuilder]: Finished intersection with 62 states and 87 transitions. [2022-03-15 20:03:41,191 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:41,274 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:41,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 20:03:41,274 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:41,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 20:03:41,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2022-03-15 20:03:41,275 INFO L87 Difference]: Start difference. First operand 7120 states and 34608 transitions. Second operand has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:41,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:41,376 INFO L93 Difference]: Finished difference Result 6866 states and 33345 transitions. [2022-03-15 20:03:41,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 20:03:41,377 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-03-15 20:03:41,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:41,398 INFO L225 Difference]: With dead ends: 6866 [2022-03-15 20:03:41,399 INFO L226 Difference]: Without dead ends: 6866 [2022-03-15 20:03:41,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2022-03-15 20:03:41,400 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 115 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:41,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 11 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:03:41,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6866 states. [2022-03-15 20:03:41,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6866 to 6866. [2022-03-15 20:03:41,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6866 states, 6864 states have (on average 4.857954545454546) internal successors, (33345), 6865 states have internal predecessors, (33345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:41,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6866 states to 6866 states and 33345 transitions. [2022-03-15 20:03:41,555 INFO L78 Accepts]: Start accepts. Automaton has 6866 states and 33345 transitions. Word has length 35 [2022-03-15 20:03:41,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:41,555 INFO L470 AbstractCegarLoop]: Abstraction has 6866 states and 33345 transitions. [2022-03-15 20:03:41,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:41,555 INFO L276 IsEmpty]: Start isEmpty. Operand 6866 states and 33345 transitions. [2022-03-15 20:03:41,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 20:03:41,563 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:41,563 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:41,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:41,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:41,778 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:41,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:41,779 INFO L85 PathProgramCache]: Analyzing trace with hash 2145544887, now seen corresponding path program 1 times [2022-03-15 20:03:41,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:41,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241140370] [2022-03-15 20:03:41,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:41,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:41,834 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:41,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:41,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241140370] [2022-03-15 20:03:41,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241140370] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:41,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071312090] [2022-03-15 20:03:41,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:41,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:41,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:41,837 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:41,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2022-03-15 20:03:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:41,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:03:41,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:42,039 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-15 20:03:42,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:42,105 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-15 20:03:42,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071312090] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:42,106 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:42,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 4] total 17 [2022-03-15 20:03:42,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1168928648] [2022-03-15 20:03:42,106 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:42,109 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:42,120 INFO L252 McrAutomatonBuilder]: Finished intersection with 70 states and 99 transitions. [2022-03-15 20:03:42,120 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:42,224 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:42,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 20:03:42,224 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:42,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 20:03:42,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2022-03-15 20:03:42,225 INFO L87 Difference]: Start difference. First operand 6866 states and 33345 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:42,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:42,378 INFO L93 Difference]: Finished difference Result 6356 states and 30548 transitions. [2022-03-15 20:03:42,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 20:03:42,379 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-15 20:03:42,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:42,397 INFO L225 Difference]: With dead ends: 6356 [2022-03-15 20:03:42,398 INFO L226 Difference]: Without dead ends: 6356 [2022-03-15 20:03:42,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2022-03-15 20:03:42,398 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 119 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:42,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 12 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:03:42,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6356 states. [2022-03-15 20:03:42,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6356 to 4603. [2022-03-15 20:03:42,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4603 states, 4602 states have (on average 4.950673620165146) internal successors, (22783), 4602 states have internal predecessors, (22783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:42,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4603 states to 4603 states and 22783 transitions. [2022-03-15 20:03:42,515 INFO L78 Accepts]: Start accepts. Automaton has 4603 states and 22783 transitions. Word has length 39 [2022-03-15 20:03:42,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:42,515 INFO L470 AbstractCegarLoop]: Abstraction has 4603 states and 22783 transitions. [2022-03-15 20:03:42,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:42,515 INFO L276 IsEmpty]: Start isEmpty. Operand 4603 states and 22783 transitions. [2022-03-15 20:03:42,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 20:03:42,521 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:42,521 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:42,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2022-03-15 20:03:42,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2022-03-15 20:03:42,723 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:42,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:42,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1103562257, now seen corresponding path program 1 times [2022-03-15 20:03:42,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:42,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310707467] [2022-03-15 20:03:42,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:42,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:03:42,735 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 20:03:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:03:42,745 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 20:03:42,745 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 20:03:42,745 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-03-15 20:03:42,745 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-03-15 20:03:42,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-15 20:03:42,746 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:42,746 WARN L235 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-15 20:03:42,746 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2022-03-15 20:03:42,755 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,756 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,757 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,758 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,759 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,760 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,761 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,762 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,763 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,764 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,765 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,765 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,765 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,765 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,765 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,765 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,765 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,765 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,765 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,765 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,765 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,765 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,765 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,765 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,765 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,766 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,766 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,766 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,766 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,766 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,766 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,766 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,766 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,766 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,766 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,766 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,766 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,766 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,766 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,767 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,767 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,767 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,767 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,767 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,767 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,767 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,767 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,767 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,767 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,767 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,767 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,767 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,767 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,768 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,768 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,768 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,768 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,768 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,768 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,768 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,768 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,768 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,768 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,768 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,768 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,768 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,768 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,768 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:03:42,776 INFO L148 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2022-03-15 20:03:42,777 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:03:42,777 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:03:42,777 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-15 20:03:42,778 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:03:42,778 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 122 transitions, 414 flow [2022-03-15 20:03:42,778 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 122 transitions, 414 flow [2022-03-15 20:03:42,778 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 122 transitions, 414 flow [2022-03-15 20:03:44,923 INFO L129 PetriNetUnfolder]: 5153/19715 cut-off events. [2022-03-15 20:03:44,923 INFO L130 PetriNetUnfolder]: For 5330/5330 co-relation queries the response was YES. [2022-03-15 20:03:44,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24921 conditions, 19715 events. 5153/19715 cut-off events. For 5330/5330 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 207422 event pairs, 3084 based on Foata normal form. 0/17623 useless extension candidates. Maximal degree in co-relation 12070. Up to 5120 conditions per place. [2022-03-15 20:03:45,261 INFO L116 LiptonReduction]: Number of co-enabled transitions 6800 [2022-03-15 20:03:46,509 INFO L131 LiptonReduction]: Checked pairs total: 11854 [2022-03-15 20:03:46,509 INFO L133 LiptonReduction]: Total number of compositions: 86 [2022-03-15 20:03:46,509 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 41 transitions, 252 flow [2022-03-15 20:03:46,997 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11258 states, 11246 states have (on average 5.463186910901654) internal successors, (61439), 11257 states have internal predecessors, (61439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:47,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 11258 states, 11246 states have (on average 5.463186910901654) internal successors, (61439), 11257 states have internal predecessors, (61439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:47,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-03-15 20:03:47,011 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:47,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2022-03-15 20:03:47,012 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:47,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:47,012 INFO L85 PathProgramCache]: Analyzing trace with hash 56575, now seen corresponding path program 1 times [2022-03-15 20:03:47,013 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:47,013 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485247372] [2022-03-15 20:03:47,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:47,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:47,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:47,026 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:47,026 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485247372] [2022-03-15 20:03:47,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485247372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:03:47,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:03:47,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:03:47,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1055430674] [2022-03-15 20:03:47,027 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:47,027 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:47,027 INFO L252 McrAutomatonBuilder]: Finished intersection with 3 states and 2 transitions. [2022-03-15 20:03:47,027 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:47,027 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:47,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:03:47,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:47,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:03:47,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:47,042 INFO L87 Difference]: Start difference. First operand has 11258 states, 11246 states have (on average 5.463186910901654) internal successors, (61439), 11257 states have internal predecessors, (61439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:47,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:47,151 INFO L93 Difference]: Finished difference Result 11247 states and 61373 transitions. [2022-03-15 20:03:47,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:03:47,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-03-15 20:03:47,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:47,202 INFO L225 Difference]: With dead ends: 11247 [2022-03-15 20:03:47,202 INFO L226 Difference]: Without dead ends: 11247 [2022-03-15 20:03:47,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:03:47,202 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 14 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:47,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 4 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:47,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11247 states. [2022-03-15 20:03:47,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 11247. [2022-03-15 20:03:47,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11247 states, 11236 states have (on average 5.462175151299395) internal successors, (61373), 11246 states have internal predecessors, (61373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:47,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11247 states to 11247 states and 61373 transitions. [2022-03-15 20:03:47,560 INFO L78 Accepts]: Start accepts. Automaton has 11247 states and 61373 transitions. Word has length 2 [2022-03-15 20:03:47,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:47,561 INFO L470 AbstractCegarLoop]: Abstraction has 11247 states and 61373 transitions. [2022-03-15 20:03:47,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:47,561 INFO L276 IsEmpty]: Start isEmpty. Operand 11247 states and 61373 transitions. [2022-03-15 20:03:47,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-03-15 20:03:47,561 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:47,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:47,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-15 20:03:47,562 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:47,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:47,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1725891420, now seen corresponding path program 1 times [2022-03-15 20:03:47,563 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:47,563 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536487160] [2022-03-15 20:03:47,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:47,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:47,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:47,582 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:47,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536487160] [2022-03-15 20:03:47,582 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536487160] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:47,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243158780] [2022-03-15 20:03:47,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:47,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:47,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:47,583 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:47,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2022-03-15 20:03:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:47,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:03:47,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:47,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:47,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:47,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:47,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243158780] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:47,748 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:47,749 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2022-03-15 20:03:47,749 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [109726607] [2022-03-15 20:03:47,749 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:47,749 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:47,749 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 11 transitions. [2022-03-15 20:03:47,749 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:47,760 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [56439#(<= (+ |threadThread1of10ForFork0_#in~arg.offset| |threadThread1of10ForFork0_#in~arg.base|) 1)] [2022-03-15 20:03:47,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:03:47,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:47,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:03:47,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-15 20:03:47,760 INFO L87 Difference]: Start difference. First operand 11247 states and 61373 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:48,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:48,004 INFO L93 Difference]: Finished difference Result 16813 states and 87925 transitions. [2022-03-15 20:03:48,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:03:48,004 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-03-15 20:03:48,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:48,068 INFO L225 Difference]: With dead ends: 16813 [2022-03-15 20:03:48,069 INFO L226 Difference]: Without dead ends: 16813 [2022-03-15 20:03:48,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:48,069 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 61 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:48,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 6 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:48,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16813 states. [2022-03-15 20:03:48,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16813 to 14778. [2022-03-15 20:03:48,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14778 states, 14768 states have (on average 5.333965330444204) internal successors, (78772), 14777 states have internal predecessors, (78772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:48,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14778 states to 14778 states and 78772 transitions. [2022-03-15 20:03:48,646 INFO L78 Accepts]: Start accepts. Automaton has 14778 states and 78772 transitions. Word has length 7 [2022-03-15 20:03:48,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:48,647 INFO L470 AbstractCegarLoop]: Abstraction has 14778 states and 78772 transitions. [2022-03-15 20:03:48,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:48,647 INFO L276 IsEmpty]: Start isEmpty. Operand 14778 states and 78772 transitions. [2022-03-15 20:03:48,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:03:48,647 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:48,647 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:03:48,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:48,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2022-03-15 20:03:48,864 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:48,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:48,864 INFO L85 PathProgramCache]: Analyzing trace with hash 44551944, now seen corresponding path program 1 times [2022-03-15 20:03:48,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:48,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842138517] [2022-03-15 20:03:48,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:48,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:48,879 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:48,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:48,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842138517] [2022-03-15 20:03:48,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842138517] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:48,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665082647] [2022-03-15 20:03:48,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:48,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:48,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:48,881 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:48,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2022-03-15 20:03:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:49,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-15 20:03:49,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:49,022 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:49,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:49,051 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:49,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665082647] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:49,051 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:49,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2022-03-15 20:03:49,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [288599845] [2022-03-15 20:03:49,051 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:49,051 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:49,052 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 15 transitions. [2022-03-15 20:03:49,052 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:49,059 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:49,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 20:03:49,059 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:49,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 20:03:49,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-03-15 20:03:49,060 INFO L87 Difference]: Start difference. First operand 14778 states and 78772 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:49,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:49,309 INFO L93 Difference]: Finished difference Result 14776 states and 78769 transitions. [2022-03-15 20:03:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 20:03:49,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:03:49,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:49,376 INFO L225 Difference]: With dead ends: 14776 [2022-03-15 20:03:49,376 INFO L226 Difference]: Without dead ends: 14776 [2022-03-15 20:03:49,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-03-15 20:03:49,377 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 16 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:49,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 6 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:49,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14776 states. [2022-03-15 20:03:49,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14776 to 14776. [2022-03-15 20:03:49,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14776 states, 14767 states have (on average 5.334123383219341) internal successors, (78769), 14775 states have internal predecessors, (78769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:49,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14776 states to 14776 states and 78769 transitions. [2022-03-15 20:03:49,866 INFO L78 Accepts]: Start accepts. Automaton has 14776 states and 78769 transitions. Word has length 11 [2022-03-15 20:03:49,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:49,866 INFO L470 AbstractCegarLoop]: Abstraction has 14776 states and 78769 transitions. [2022-03-15 20:03:49,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:49,866 INFO L276 IsEmpty]: Start isEmpty. Operand 14776 states and 78769 transitions. [2022-03-15 20:03:49,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-15 20:03:49,866 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:49,866 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:49,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:50,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,55 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:50,083 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:50,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:50,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1227201065, now seen corresponding path program 1 times [2022-03-15 20:03:50,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:50,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215777523] [2022-03-15 20:03:50,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:50,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:50,104 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:50,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:50,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215777523] [2022-03-15 20:03:50,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215777523] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:50,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588344855] [2022-03-15 20:03:50,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:50,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:50,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:50,106 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:50,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2022-03-15 20:03:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:50,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 20:03:50,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:50,267 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:50,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:50,321 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:50,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588344855] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:50,321 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:50,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 12 [2022-03-15 20:03:50,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [284441170] [2022-03-15 20:03:50,321 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:50,322 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:50,323 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 19 transitions. [2022-03-15 20:03:50,323 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:50,342 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:50,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:03:50,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:50,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:03:50,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:50,342 INFO L87 Difference]: Start difference. First operand 14776 states and 78769 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:50,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:50,605 INFO L93 Difference]: Finished difference Result 14770 states and 78756 transitions. [2022-03-15 20:03:50,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:03:50,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-03-15 20:03:50,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:50,671 INFO L225 Difference]: With dead ends: 14770 [2022-03-15 20:03:50,671 INFO L226 Difference]: Without dead ends: 14770 [2022-03-15 20:03:50,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:03:50,672 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 25 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:50,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 8 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:50,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14770 states. [2022-03-15 20:03:51,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14770 to 14770. [2022-03-15 20:03:51,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14770 states, 14762 states have (on average 5.335049451293862) internal successors, (78756), 14769 states have internal predecessors, (78756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:51,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14770 states to 14770 states and 78756 transitions. [2022-03-15 20:03:51,250 INFO L78 Accepts]: Start accepts. Automaton has 14770 states and 78756 transitions. Word has length 15 [2022-03-15 20:03:51,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:51,250 INFO L470 AbstractCegarLoop]: Abstraction has 14770 states and 78756 transitions. [2022-03-15 20:03:51,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:51,250 INFO L276 IsEmpty]: Start isEmpty. Operand 14770 states and 78756 transitions. [2022-03-15 20:03:51,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 20:03:51,251 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:51,251 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:51,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2022-03-15 20:03:51,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,56 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:51,466 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:51,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:51,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1492347867, now seen corresponding path program 1 times [2022-03-15 20:03:51,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:51,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725039686] [2022-03-15 20:03:51,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:51,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:51,498 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:51,499 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:51,499 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725039686] [2022-03-15 20:03:51,499 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725039686] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:51,499 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840683245] [2022-03-15 20:03:51,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:51,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:51,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:51,500 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:51,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2022-03-15 20:03:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:51,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 20:03:51,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:51,660 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:51,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:51,733 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 20:03:51,734 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840683245] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:51,734 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:51,734 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-03-15 20:03:51,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [173432202] [2022-03-15 20:03:51,734 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:51,735 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:51,736 INFO L252 McrAutomatonBuilder]: Finished intersection with 26 states and 31 transitions. [2022-03-15 20:03:51,737 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:51,757 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:51,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 20:03:51,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:51,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 20:03:51,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-03-15 20:03:51,757 INFO L87 Difference]: Start difference. First operand 14770 states and 78756 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:52,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:52,039 INFO L93 Difference]: Finished difference Result 14756 states and 78717 transitions. [2022-03-15 20:03:52,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 20:03:52,039 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-03-15 20:03:52,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:52,147 INFO L225 Difference]: With dead ends: 14756 [2022-03-15 20:03:52,147 INFO L226 Difference]: Without dead ends: 14756 [2022-03-15 20:03:52,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-03-15 20:03:52,148 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 43 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:52,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 9 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:03:52,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14756 states. [2022-03-15 20:03:52,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14756 to 14756. [2022-03-15 20:03:52,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14756 states, 14749 states have (on average 5.3371076005152895) internal successors, (78717), 14755 states have internal predecessors, (78717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:52,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14756 states to 14756 states and 78717 transitions. [2022-03-15 20:03:52,629 INFO L78 Accepts]: Start accepts. Automaton has 14756 states and 78717 transitions. Word has length 19 [2022-03-15 20:03:52,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:52,629 INFO L470 AbstractCegarLoop]: Abstraction has 14756 states and 78717 transitions. [2022-03-15 20:03:52,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:52,629 INFO L276 IsEmpty]: Start isEmpty. Operand 14756 states and 78717 transitions. [2022-03-15 20:03:52,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-03-15 20:03:52,630 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:52,630 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:52,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2022-03-15 20:03:52,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,57 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:52,846 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:52,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:52,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1689107394, now seen corresponding path program 1 times [2022-03-15 20:03:52,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:52,848 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102010971] [2022-03-15 20:03:52,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:52,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:52,897 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:52,897 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:52,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102010971] [2022-03-15 20:03:52,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102010971] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:52,898 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109265380] [2022-03-15 20:03:52,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:52,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:52,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:52,899 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:52,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2022-03-15 20:03:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:53,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 20:03:53,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:53,075 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 20:03:53,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:53,140 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 20:03:53,141 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109265380] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:53,141 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:53,141 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2022-03-15 20:03:53,141 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1882951849] [2022-03-15 20:03:53,141 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:53,142 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:53,145 INFO L252 McrAutomatonBuilder]: Finished intersection with 34 states and 43 transitions. [2022-03-15 20:03:53,145 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:53,181 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:53,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 20:03:53,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:53,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 20:03:53,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-03-15 20:03:53,182 INFO L87 Difference]: Start difference. First operand 14756 states and 78717 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:53,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:53,456 INFO L93 Difference]: Finished difference Result 14726 states and 78616 transitions. [2022-03-15 20:03:53,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 20:03:53,471 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-03-15 20:03:53,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:53,543 INFO L225 Difference]: With dead ends: 14726 [2022-03-15 20:03:53,543 INFO L226 Difference]: Without dead ends: 14726 [2022-03-15 20:03:53,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-03-15 20:03:53,543 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 44 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:53,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 11 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:03:53,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14726 states. [2022-03-15 20:03:54,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14726 to 14726. [2022-03-15 20:03:54,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14726 states, 14720 states have (on average 5.340760869565218) internal successors, (78616), 14725 states have internal predecessors, (78616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:54,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14726 states to 14726 states and 78616 transitions. [2022-03-15 20:03:54,088 INFO L78 Accepts]: Start accepts. Automaton has 14726 states and 78616 transitions. Word has length 23 [2022-03-15 20:03:54,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:54,088 INFO L470 AbstractCegarLoop]: Abstraction has 14726 states and 78616 transitions. [2022-03-15 20:03:54,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:54,089 INFO L276 IsEmpty]: Start isEmpty. Operand 14726 states and 78616 transitions. [2022-03-15 20:03:54,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 20:03:54,090 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:54,090 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:54,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:54,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,58 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:54,303 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:54,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:54,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1744349056, now seen corresponding path program 1 times [2022-03-15 20:03:54,304 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:54,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952128617] [2022-03-15 20:03:54,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:54,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:54,342 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:54,342 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:54,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952128617] [2022-03-15 20:03:54,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952128617] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:54,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752926405] [2022-03-15 20:03:54,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:54,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:54,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:54,344 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:54,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2022-03-15 20:03:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:54,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 20:03:54,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:54,535 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-15 20:03:54,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:54,615 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-15 20:03:54,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752926405] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:54,615 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:54,615 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 15 [2022-03-15 20:03:54,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [470473629] [2022-03-15 20:03:54,615 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:54,617 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:54,621 INFO L252 McrAutomatonBuilder]: Finished intersection with 42 states and 55 transitions. [2022-03-15 20:03:54,621 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:54,678 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:54,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 20:03:54,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:54,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 20:03:54,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-15 20:03:54,678 INFO L87 Difference]: Start difference. First operand 14726 states and 78616 transitions. Second operand has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:54,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:54,942 INFO L93 Difference]: Finished difference Result 14664 states and 78373 transitions. [2022-03-15 20:03:54,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 20:03:54,942 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-03-15 20:03:54,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:55,002 INFO L225 Difference]: With dead ends: 14664 [2022-03-15 20:03:55,002 INFO L226 Difference]: Without dead ends: 14664 [2022-03-15 20:03:55,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-15 20:03:55,002 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 90 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:55,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 10 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:03:55,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14664 states. [2022-03-15 20:03:55,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14664 to 14664. [2022-03-15 20:03:55,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14664 states, 14659 states have (on average 5.346408349819224) internal successors, (78373), 14663 states have internal predecessors, (78373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:55,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14664 states to 14664 states and 78373 transitions. [2022-03-15 20:03:55,512 INFO L78 Accepts]: Start accepts. Automaton has 14664 states and 78373 transitions. Word has length 27 [2022-03-15 20:03:55,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:55,512 INFO L470 AbstractCegarLoop]: Abstraction has 14664 states and 78373 transitions. [2022-03-15 20:03:55,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:55,512 INFO L276 IsEmpty]: Start isEmpty. Operand 14664 states and 78373 transitions. [2022-03-15 20:03:55,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-15 20:03:55,514 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:55,514 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:55,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:55,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable81 [2022-03-15 20:03:55,731 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:55,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:55,731 INFO L85 PathProgramCache]: Analyzing trace with hash -396882399, now seen corresponding path program 1 times [2022-03-15 20:03:55,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:55,732 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143802900] [2022-03-15 20:03:55,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:55,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:55,778 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:55,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:55,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143802900] [2022-03-15 20:03:55,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143802900] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:55,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705244771] [2022-03-15 20:03:55,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:55,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:55,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:55,780 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:55,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2022-03-15 20:03:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:55,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 20:03:55,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:55,972 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-15 20:03:55,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:56,058 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-15 20:03:56,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705244771] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:56,058 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:56,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 16 [2022-03-15 20:03:56,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [304785516] [2022-03-15 20:03:56,059 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:56,061 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:56,067 INFO L252 McrAutomatonBuilder]: Finished intersection with 50 states and 67 transitions. [2022-03-15 20:03:56,067 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:56,136 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:56,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 20:03:56,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:56,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 20:03:56,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2022-03-15 20:03:56,137 INFO L87 Difference]: Start difference. First operand 14664 states and 78373 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:56,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:56,304 INFO L93 Difference]: Finished difference Result 14538 states and 77812 transitions. [2022-03-15 20:03:56,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 20:03:56,304 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-03-15 20:03:56,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:56,515 INFO L225 Difference]: With dead ends: 14538 [2022-03-15 20:03:56,516 INFO L226 Difference]: Without dead ends: 14538 [2022-03-15 20:03:56,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2022-03-15 20:03:56,516 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 76 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:56,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 13 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:03:56,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14538 states. [2022-03-15 20:03:56,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14538 to 14538. [2022-03-15 20:03:57,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14538 states, 14534 states have (on average 5.353791110499518) internal successors, (77812), 14537 states have internal predecessors, (77812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:57,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14538 states to 14538 states and 77812 transitions. [2022-03-15 20:03:57,075 INFO L78 Accepts]: Start accepts. Automaton has 14538 states and 77812 transitions. Word has length 31 [2022-03-15 20:03:57,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:57,075 INFO L470 AbstractCegarLoop]: Abstraction has 14538 states and 77812 transitions. [2022-03-15 20:03:57,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:57,075 INFO L276 IsEmpty]: Start isEmpty. Operand 14538 states and 77812 transitions. [2022-03-15 20:03:57,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-15 20:03:57,079 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:57,079 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:57,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:57,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,60 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:57,296 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:57,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:57,296 INFO L85 PathProgramCache]: Analyzing trace with hash -948850527, now seen corresponding path program 1 times [2022-03-15 20:03:57,297 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:57,297 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769527577] [2022-03-15 20:03:57,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:57,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:57,351 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:57,351 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:57,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769527577] [2022-03-15 20:03:57,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769527577] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:57,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313859921] [2022-03-15 20:03:57,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:57,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:57,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:57,362 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:57,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2022-03-15 20:03:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:57,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 20:03:57,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:57,552 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-03-15 20:03:57,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:57,656 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-03-15 20:03:57,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313859921] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:57,656 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:57,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 17 [2022-03-15 20:03:57,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1669599527] [2022-03-15 20:03:57,656 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:57,659 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:57,674 INFO L252 McrAutomatonBuilder]: Finished intersection with 58 states and 79 transitions. [2022-03-15 20:03:57,674 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:57,763 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:57,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 20:03:57,763 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:57,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 20:03:57,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2022-03-15 20:03:57,764 INFO L87 Difference]: Start difference. First operand 14538 states and 77812 transitions. Second operand has 11 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:57,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:57,925 INFO L93 Difference]: Finished difference Result 14284 states and 76549 transitions. [2022-03-15 20:03:57,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 20:03:57,925 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-03-15 20:03:57,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:57,989 INFO L225 Difference]: With dead ends: 14284 [2022-03-15 20:03:57,990 INFO L226 Difference]: Without dead ends: 14284 [2022-03-15 20:03:57,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2022-03-15 20:03:57,990 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 107 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:57,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 13 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:03:58,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14284 states. [2022-03-15 20:03:58,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14284 to 14284. [2022-03-15 20:03:58,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14284 states, 14281 states have (on average 5.360198865625656) internal successors, (76549), 14283 states have internal predecessors, (76549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:58,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14284 states to 14284 states and 76549 transitions. [2022-03-15 20:03:58,498 INFO L78 Accepts]: Start accepts. Automaton has 14284 states and 76549 transitions. Word has length 35 [2022-03-15 20:03:58,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:03:58,499 INFO L470 AbstractCegarLoop]: Abstraction has 14284 states and 76549 transitions. [2022-03-15 20:03:58,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:58,499 INFO L276 IsEmpty]: Start isEmpty. Operand 14284 states and 76549 transitions. [2022-03-15 20:03:58,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 20:03:58,507 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:03:58,508 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:03:58,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2022-03-15 20:03:58,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,61 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:58,723 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:03:58,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:03:58,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1677100928, now seen corresponding path program 1 times [2022-03-15 20:03:58,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:03:58,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654272558] [2022-03-15 20:03:58,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:58,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:03:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:58,825 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:03:58,825 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:03:58,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654272558] [2022-03-15 20:03:58,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654272558] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:03:58,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203693831] [2022-03-15 20:03:58,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:03:58,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:03:58,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:03:58,827 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:03:58,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2022-03-15 20:03:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:03:58,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 20:03:58,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:03:59,060 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-15 20:03:59,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:03:59,252 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-15 20:03:59,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203693831] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:03:59,252 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:03:59,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 18 [2022-03-15 20:03:59,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [745695095] [2022-03-15 20:03:59,253 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:03:59,256 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:03:59,267 INFO L252 McrAutomatonBuilder]: Finished intersection with 66 states and 91 transitions. [2022-03-15 20:03:59,267 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:03:59,332 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:03:59,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 20:03:59,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:03:59,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 20:03:59,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2022-03-15 20:03:59,333 INFO L87 Difference]: Start difference. First operand 14284 states and 76549 transitions. Second operand has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:03:59,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:03:59,500 INFO L93 Difference]: Finished difference Result 13774 states and 73752 transitions. [2022-03-15 20:03:59,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 20:03:59,500 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-15 20:03:59,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:03:59,553 INFO L225 Difference]: With dead ends: 13774 [2022-03-15 20:03:59,553 INFO L226 Difference]: Without dead ends: 13774 [2022-03-15 20:03:59,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2022-03-15 20:03:59,553 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 145 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:03:59,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 13 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:03:59,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13774 states. [2022-03-15 20:03:59,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13774 to 13774. [2022-03-15 20:03:59,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13774 states, 13772 states have (on average 5.355213476619228) internal successors, (73752), 13773 states have internal predecessors, (73752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:00,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13774 states to 13774 states and 73752 transitions. [2022-03-15 20:04:00,057 INFO L78 Accepts]: Start accepts. Automaton has 13774 states and 73752 transitions. Word has length 39 [2022-03-15 20:04:00,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:04:00,058 INFO L470 AbstractCegarLoop]: Abstraction has 13774 states and 73752 transitions. [2022-03-15 20:04:00,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:00,058 INFO L276 IsEmpty]: Start isEmpty. Operand 13774 states and 73752 transitions. [2022-03-15 20:04:00,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-15 20:04:00,076 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:04:00,076 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:04:00,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2022-03-15 20:04:00,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,62 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:00,285 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:04:00,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:04:00,285 INFO L85 PathProgramCache]: Analyzing trace with hash -228111554, now seen corresponding path program 1 times [2022-03-15 20:04:00,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:04:00,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675943813] [2022-03-15 20:04:00,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:00,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:04:00,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:00,402 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:04:00,402 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:04:00,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675943813] [2022-03-15 20:04:00,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675943813] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:04:00,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376825476] [2022-03-15 20:04:00,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:00,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:00,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:04:00,416 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:04:00,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2022-03-15 20:04:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:00,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 20:04:00,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:04:00,670 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-15 20:04:00,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:04:00,794 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-15 20:04:00,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376825476] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:04:00,795 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:04:00,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 19 [2022-03-15 20:04:00,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [197739894] [2022-03-15 20:04:00,795 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:04:00,800 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:04:00,817 INFO L252 McrAutomatonBuilder]: Finished intersection with 74 states and 103 transitions. [2022-03-15 20:04:00,817 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:04:00,926 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:04:00,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 20:04:00,926 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:04:00,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 20:04:00,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2022-03-15 20:04:00,927 INFO L87 Difference]: Start difference. First operand 13774 states and 73752 transitions. Second operand has 13 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:01,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:04:01,101 INFO L93 Difference]: Finished difference Result 12752 states and 67629 transitions. [2022-03-15 20:04:01,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 20:04:01,101 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-03-15 20:04:01,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:04:01,288 INFO L225 Difference]: With dead ends: 12752 [2022-03-15 20:04:01,289 INFO L226 Difference]: Without dead ends: 12752 [2022-03-15 20:04:01,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2022-03-15 20:04:01,289 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 148 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:04:01,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 15 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:04:01,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12752 states. [2022-03-15 20:04:01,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12752 to 9211. [2022-03-15 20:04:01,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9211 states, 9210 states have (on average 5.447882736156352) internal successors, (50175), 9210 states have internal predecessors, (50175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:01,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9211 states to 9211 states and 50175 transitions. [2022-03-15 20:04:01,536 INFO L78 Accepts]: Start accepts. Automaton has 9211 states and 50175 transitions. Word has length 43 [2022-03-15 20:04:01,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:04:01,536 INFO L470 AbstractCegarLoop]: Abstraction has 9211 states and 50175 transitions. [2022-03-15 20:04:01,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:01,536 INFO L276 IsEmpty]: Start isEmpty. Operand 9211 states and 50175 transitions. [2022-03-15 20:04:01,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-15 20:04:01,548 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:04:01,548 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:04:01,565 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2022-03-15 20:04:01,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,63 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:01,765 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:04:01,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:04:01,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1114723927, now seen corresponding path program 1 times [2022-03-15 20:04:01,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:04:01,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703053849] [2022-03-15 20:04:01,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:01,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:04:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:04:01,776 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 20:04:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:04:01,785 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 20:04:01,785 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 20:04:01,786 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-03-15 20:04:01,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-03-15 20:04:01,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-15 20:04:01,786 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:04:01,786 WARN L235 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-15 20:04:01,786 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2022-03-15 20:04:01,796 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,797 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,798 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,799 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,800 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,801 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,802 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,803 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,803 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,803 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,803 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,803 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,803 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,803 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,803 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,803 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,803 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,803 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,803 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,803 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,803 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,803 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,803 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,803 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,804 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,805 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,806 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,807 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,807 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,807 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,807 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,807 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,807 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,807 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,807 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,807 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,807 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,807 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,807 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,807 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,807 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,807 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,807 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,807 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,808 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,808 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,808 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,808 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,808 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,808 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,808 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,808 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,808 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,808 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,808 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,808 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,808 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,808 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,809 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,809 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,809 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,809 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,809 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,809 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,809 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,809 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,809 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,809 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,809 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,809 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,809 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,809 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,810 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,810 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,810 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,810 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,810 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,810 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,810 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,810 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,810 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,810 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,810 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,810 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,810 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,811 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,811 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,811 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,811 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,811 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,811 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,811 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,811 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,811 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,811 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,811 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,811 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,811 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:01,812 INFO L148 ThreadInstanceAdder]: Constructed 11 joinOtherThreadTransitions. [2022-03-15 20:04:01,813 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:04:01,813 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:04:01,813 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-15 20:04:01,814 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:04:01,814 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 129 transitions, 456 flow [2022-03-15 20:04:01,814 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 129 transitions, 456 flow [2022-03-15 20:04:01,814 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 138 places, 129 transitions, 456 flow [2022-03-15 20:04:06,048 INFO L129 PetriNetUnfolder]: 11300/40218 cut-off events. [2022-03-15 20:04:06,048 INFO L130 PetriNetUnfolder]: For 11539/11539 co-relation queries the response was YES. [2022-03-15 20:04:06,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51582 conditions, 40218 events. 11300/40218 cut-off events. For 11539/11539 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 472350 event pairs, 7181 based on Foata normal form. 0/36074 useless extension candidates. Maximal degree in co-relation 24906. Up to 11264 conditions per place. [2022-03-15 20:04:06,898 INFO L116 LiptonReduction]: Number of co-enabled transitions 7920 [2022-03-15 20:04:08,275 INFO L131 LiptonReduction]: Checked pairs total: 13114 [2022-03-15 20:04:08,275 INFO L133 LiptonReduction]: Total number of compositions: 90 [2022-03-15 20:04:08,276 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 44 transitions, 286 flow [2022-03-15 20:04:09,391 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 22522 states, 22509 states have (on average 5.959527300191034) internal successors, (134143), 22521 states have internal predecessors, (134143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:09,422 INFO L276 IsEmpty]: Start isEmpty. Operand has 22522 states, 22509 states have (on average 5.959527300191034) internal successors, (134143), 22521 states have internal predecessors, (134143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:09,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-03-15 20:04:09,422 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:04:09,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2022-03-15 20:04:09,422 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:04:09,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:04:09,423 INFO L85 PathProgramCache]: Analyzing trace with hash 63813, now seen corresponding path program 1 times [2022-03-15 20:04:09,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:04:09,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182925925] [2022-03-15 20:04:09,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:09,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:04:09,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:09,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:04:09,431 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:04:09,431 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182925925] [2022-03-15 20:04:09,431 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182925925] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:04:09,431 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:04:09,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:04:09,432 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1378235230] [2022-03-15 20:04:09,432 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:04:09,432 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:04:09,432 INFO L252 McrAutomatonBuilder]: Finished intersection with 3 states and 2 transitions. [2022-03-15 20:04:09,432 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:04:09,432 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:04:09,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:04:09,432 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:04:09,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:04:09,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:04:09,464 INFO L87 Difference]: Start difference. First operand has 22522 states, 22509 states have (on average 5.959527300191034) internal successors, (134143), 22521 states have internal predecessors, (134143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:09,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:04:09,663 INFO L93 Difference]: Finished difference Result 22521 states and 134142 transitions. [2022-03-15 20:04:09,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:04:09,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-03-15 20:04:09,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:04:09,784 INFO L225 Difference]: With dead ends: 22521 [2022-03-15 20:04:09,784 INFO L226 Difference]: Without dead ends: 22521 [2022-03-15 20:04:09,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:04:09,785 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:04:09,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:04:09,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22521 states. [2022-03-15 20:04:10,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22521 to 22521. [2022-03-15 20:04:10,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22521 states, 22509 states have (on average 5.95948287351726) internal successors, (134142), 22520 states have internal predecessors, (134142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:10,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22521 states to 22521 states and 134142 transitions. [2022-03-15 20:04:10,638 INFO L78 Accepts]: Start accepts. Automaton has 22521 states and 134142 transitions. Word has length 2 [2022-03-15 20:04:10,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:04:10,638 INFO L470 AbstractCegarLoop]: Abstraction has 22521 states and 134142 transitions. [2022-03-15 20:04:10,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:10,638 INFO L276 IsEmpty]: Start isEmpty. Operand 22521 states and 134142 transitions. [2022-03-15 20:04:10,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-03-15 20:04:10,638 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:04:10,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-03-15 20:04:10,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-15 20:04:10,638 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:04:10,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:04:10,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1132489220, now seen corresponding path program 1 times [2022-03-15 20:04:10,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:04:10,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367780262] [2022-03-15 20:04:10,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:10,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:04:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:10,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 20:04:10,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:04:10,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367780262] [2022-03-15 20:04:10,648 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367780262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:04:10,648 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:04:10,648 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:04:10,648 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [445764303] [2022-03-15 20:04:10,648 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:04:10,648 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:04:10,648 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2022-03-15 20:04:10,648 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:04:10,649 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:04:10,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:04:10,649 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:04:10,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:04:10,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:04:10,649 INFO L87 Difference]: Start difference. First operand 22521 states and 134142 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:11,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:04:11,003 INFO L93 Difference]: Finished difference Result 22510 states and 134065 transitions. [2022-03-15 20:04:11,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:04:11,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-03-15 20:04:11,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:04:11,106 INFO L225 Difference]: With dead ends: 22510 [2022-03-15 20:04:11,106 INFO L226 Difference]: Without dead ends: 22510 [2022-03-15 20:04:11,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:04:11,106 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:04:11,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 4 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:04:11,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22510 states. [2022-03-15 20:04:11,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22510 to 22510. [2022-03-15 20:04:11,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22510 states, 22498 states have (on average 5.9589741310338695) internal successors, (134065), 22509 states have internal predecessors, (134065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:12,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22510 states to 22510 states and 134065 transitions. [2022-03-15 20:04:12,055 INFO L78 Accepts]: Start accepts. Automaton has 22510 states and 134065 transitions. Word has length 6 [2022-03-15 20:04:12,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:04:12,055 INFO L470 AbstractCegarLoop]: Abstraction has 22510 states and 134065 transitions. [2022-03-15 20:04:12,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:12,055 INFO L276 IsEmpty]: Start isEmpty. Operand 22510 states and 134065 transitions. [2022-03-15 20:04:12,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-03-15 20:04:12,055 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:04:12,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:04:12,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-15 20:04:12,055 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:04:12,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:04:12,056 INFO L85 PathProgramCache]: Analyzing trace with hash -747425236, now seen corresponding path program 1 times [2022-03-15 20:04:12,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:04:12,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848854591] [2022-03-15 20:04:12,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:12,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:04:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:12,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:04:12,071 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:04:12,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848854591] [2022-03-15 20:04:12,071 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848854591] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:04:12,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428054674] [2022-03-15 20:04:12,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:12,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:12,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:04:12,072 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:04:12,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2022-03-15 20:04:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:12,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-15 20:04:12,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:04:12,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:04:12,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:04:12,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:04:12,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428054674] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:04:12,207 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:04:12,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-03-15 20:04:12,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [135332738] [2022-03-15 20:04:12,207 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:04:12,207 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:04:12,208 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 11 transitions. [2022-03-15 20:04:12,208 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:04:12,212 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [180291#(<= |ULTIMATE.start_main_~i~0#1| 1)] [2022-03-15 20:04:12,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 20:04:12,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:04:12,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 20:04:12,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-03-15 20:04:12,212 INFO L87 Difference]: Start difference. First operand 22510 states and 134065 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:12,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:04:12,604 INFO L93 Difference]: Finished difference Result 22509 states and 134064 transitions. [2022-03-15 20:04:12,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 20:04:12,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-03-15 20:04:12,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:04:12,713 INFO L225 Difference]: With dead ends: 22509 [2022-03-15 20:04:12,713 INFO L226 Difference]: Without dead ends: 22509 [2022-03-15 20:04:12,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-03-15 20:04:12,714 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:04:12,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 8 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:04:12,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22509 states. [2022-03-15 20:04:13,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22509 to 22509. [2022-03-15 20:04:13,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22509 states, 22498 states have (on average 5.958929682638456) internal successors, (134064), 22508 states have internal predecessors, (134064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:13,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22509 states to 22509 states and 134064 transitions. [2022-03-15 20:04:13,513 INFO L78 Accepts]: Start accepts. Automaton has 22509 states and 134064 transitions. Word has length 7 [2022-03-15 20:04:13,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:04:13,513 INFO L470 AbstractCegarLoop]: Abstraction has 22509 states and 134064 transitions. [2022-03-15 20:04:13,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:13,513 INFO L276 IsEmpty]: Start isEmpty. Operand 22509 states and 134064 transitions. [2022-03-15 20:04:13,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:04:13,513 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:04:13,514 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:04:13,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2022-03-15 20:04:13,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2022-03-15 20:04:13,730 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:04:13,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:04:13,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1490635100, now seen corresponding path program 1 times [2022-03-15 20:04:13,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:04:13,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209935124] [2022-03-15 20:04:13,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:13,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:04:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:13,751 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:04:13,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:04:13,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209935124] [2022-03-15 20:04:13,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209935124] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:04:13,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440364309] [2022-03-15 20:04:13,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:13,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:13,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:04:13,753 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:04:13,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2022-03-15 20:04:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:13,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:04:13,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:04:13,928 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:04:13,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:04:13,950 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:04:13,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440364309] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:04:13,951 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:04:13,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 9 [2022-03-15 20:04:13,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [26967564] [2022-03-15 20:04:13,952 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:04:13,952 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:04:13,953 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 23 transitions. [2022-03-15 20:04:13,953 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:04:13,987 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [247925#(or (< 15 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2)), 247926#(or (< 14 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1))] [2022-03-15 20:04:13,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 20:04:13,987 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:04:13,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 20:04:13,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-03-15 20:04:13,987 INFO L87 Difference]: Start difference. First operand 22509 states and 134064 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:14,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:04:14,395 INFO L93 Difference]: Finished difference Result 22506 states and 134059 transitions. [2022-03-15 20:04:14,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:04:14,396 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:04:14,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:04:14,499 INFO L225 Difference]: With dead ends: 22506 [2022-03-15 20:04:14,499 INFO L226 Difference]: Without dead ends: 22506 [2022-03-15 20:04:14,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:04:14,499 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 42 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:04:14,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 11 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:04:14,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22506 states. [2022-03-15 20:04:15,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22506 to 22506. [2022-03-15 20:04:15,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22506 states, 22496 states have (on average 5.95923719772404) internal successors, (134059), 22505 states have internal predecessors, (134059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:15,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22506 states to 22506 states and 134059 transitions. [2022-03-15 20:04:15,598 INFO L78 Accepts]: Start accepts. Automaton has 22506 states and 134059 transitions. Word has length 11 [2022-03-15 20:04:15,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:04:15,599 INFO L470 AbstractCegarLoop]: Abstraction has 22506 states and 134059 transitions. [2022-03-15 20:04:15,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:15,599 INFO L276 IsEmpty]: Start isEmpty. Operand 22506 states and 134059 transitions. [2022-03-15 20:04:15,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-15 20:04:15,599 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:04:15,599 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-03-15 20:04:15,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2022-03-15 20:04:15,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,65 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:15,811 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:04:15,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:04:15,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1246071655, now seen corresponding path program 1 times [2022-03-15 20:04:15,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:04:15,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982938122] [2022-03-15 20:04:15,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:15,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:04:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:15,833 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:04:15,833 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:04:15,833 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982938122] [2022-03-15 20:04:15,834 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982938122] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:04:15,834 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204165660] [2022-03-15 20:04:15,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:15,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:15,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:04:15,835 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:04:15,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2022-03-15 20:04:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:15,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:04:15,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:04:15,971 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-15 20:04:15,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:04:16,008 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-15 20:04:16,008 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204165660] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:04:16,008 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:04:16,008 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 10 [2022-03-15 20:04:16,008 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [148598743] [2022-03-15 20:04:16,008 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:04:16,009 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:04:16,010 INFO L252 McrAutomatonBuilder]: Finished intersection with 26 states and 35 transitions. [2022-03-15 20:04:16,010 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:04:16,068 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [315544#(or (< 14 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)), 315543#(or (< 15 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2))] [2022-03-15 20:04:16,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 20:04:16,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:04:16,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 20:04:16,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:04:16,069 INFO L87 Difference]: Start difference. First operand 22506 states and 134059 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:16,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:04:16,306 INFO L93 Difference]: Finished difference Result 22499 states and 134043 transitions. [2022-03-15 20:04:16,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 20:04:16,306 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-03-15 20:04:16,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:04:16,410 INFO L225 Difference]: With dead ends: 22499 [2022-03-15 20:04:16,410 INFO L226 Difference]: Without dead ends: 22499 [2022-03-15 20:04:16,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-03-15 20:04:16,410 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 55 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:04:16,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 12 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:04:16,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22499 states. [2022-03-15 20:04:17,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22499 to 22499. [2022-03-15 20:04:17,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22499 states, 22490 states have (on average 5.960115606936416) internal successors, (134043), 22498 states have internal predecessors, (134043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:17,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22499 states to 22499 states and 134043 transitions. [2022-03-15 20:04:17,371 INFO L78 Accepts]: Start accepts. Automaton has 22499 states and 134043 transitions. Word has length 15 [2022-03-15 20:04:17,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:04:17,372 INFO L470 AbstractCegarLoop]: Abstraction has 22499 states and 134043 transitions. [2022-03-15 20:04:17,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:17,372 INFO L276 IsEmpty]: Start isEmpty. Operand 22499 states and 134043 transitions. [2022-03-15 20:04:17,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 20:04:17,372 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:04:17,372 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:04:17,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2022-03-15 20:04:17,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,66 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:17,589 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:04:17,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:04:17,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1213946771, now seen corresponding path program 1 times [2022-03-15 20:04:17,591 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:04:17,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114929187] [2022-03-15 20:04:17,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:17,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:04:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:17,638 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:04:17,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:04:17,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114929187] [2022-03-15 20:04:17,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114929187] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:04:17,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426628117] [2022-03-15 20:04:17,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:17,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:17,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:04:17,655 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:04:17,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2022-03-15 20:04:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:17,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:04:17,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:04:17,895 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-15 20:04:17,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:04:17,971 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-15 20:04:17,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426628117] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:04:17,971 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:04:17,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 11 [2022-03-15 20:04:17,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [124649500] [2022-03-15 20:04:17,971 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:04:17,972 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:04:17,974 INFO L252 McrAutomatonBuilder]: Finished intersection with 34 states and 47 transitions. [2022-03-15 20:04:17,974 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:04:18,079 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [383166#(or (< 14 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)), 383165#(or (< 15 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2))] [2022-03-15 20:04:18,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 20:04:18,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:04:18,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 20:04:18,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2022-03-15 20:04:18,079 INFO L87 Difference]: Start difference. First operand 22499 states and 134043 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:18,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:04:18,562 INFO L93 Difference]: Finished difference Result 22484 states and 134000 transitions. [2022-03-15 20:04:18,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 20:04:18,563 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-03-15 20:04:18,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:04:18,745 INFO L225 Difference]: With dead ends: 22484 [2022-03-15 20:04:18,745 INFO L226 Difference]: Without dead ends: 22484 [2022-03-15 20:04:18,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-03-15 20:04:18,746 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 62 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:04:18,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 12 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:04:18,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22484 states. [2022-03-15 20:04:19,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22484 to 22484. [2022-03-15 20:04:19,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22484 states, 22476 states have (on average 5.96191493148247) internal successors, (134000), 22483 states have internal predecessors, (134000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:19,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22484 states to 22484 states and 134000 transitions. [2022-03-15 20:04:19,566 INFO L78 Accepts]: Start accepts. Automaton has 22484 states and 134000 transitions. Word has length 19 [2022-03-15 20:04:19,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:04:19,567 INFO L470 AbstractCegarLoop]: Abstraction has 22484 states and 134000 transitions. [2022-03-15 20:04:19,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:19,567 INFO L276 IsEmpty]: Start isEmpty. Operand 22484 states and 134000 transitions. [2022-03-15 20:04:19,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-03-15 20:04:19,567 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:04:19,567 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:04:19,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2022-03-15 20:04:19,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,67 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:19,784 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:04:19,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:04:19,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1451966112, now seen corresponding path program 1 times [2022-03-15 20:04:19,785 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:04:19,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142693575] [2022-03-15 20:04:19,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:19,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:04:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:19,827 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:04:19,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:04:19,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142693575] [2022-03-15 20:04:19,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142693575] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:04:19,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756325033] [2022-03-15 20:04:19,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:19,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:19,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:04:19,829 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:04:19,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2022-03-15 20:04:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:19,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:04:19,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:04:20,047 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-15 20:04:20,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:04:20,097 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-15 20:04:20,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756325033] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:04:20,097 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:04:20,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 12 [2022-03-15 20:04:20,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1124575961] [2022-03-15 20:04:20,097 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:04:20,099 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:04:20,102 INFO L252 McrAutomatonBuilder]: Finished intersection with 42 states and 59 transitions. [2022-03-15 20:04:20,102 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:04:20,176 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [450768#(or (< 14 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)), 450767#(or (< 15 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2))] [2022-03-15 20:04:20,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 20:04:20,176 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:04:20,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 20:04:20,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2022-03-15 20:04:20,177 INFO L87 Difference]: Start difference. First operand 22484 states and 134000 transitions. Second operand has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:20,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:04:20,710 INFO L93 Difference]: Finished difference Result 22453 states and 133894 transitions. [2022-03-15 20:04:20,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 20:04:20,711 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-03-15 20:04:20,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:04:20,821 INFO L225 Difference]: With dead ends: 22453 [2022-03-15 20:04:20,821 INFO L226 Difference]: Without dead ends: 22453 [2022-03-15 20:04:20,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-03-15 20:04:20,822 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 66 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 20:04:20,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 16 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 20:04:20,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22453 states. [2022-03-15 20:04:21,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22453 to 22453. [2022-03-15 20:04:21,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22453 states, 22446 states have (on average 5.965160830437495) internal successors, (133894), 22452 states have internal predecessors, (133894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:21,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22453 states to 22453 states and 133894 transitions. [2022-03-15 20:04:21,853 INFO L78 Accepts]: Start accepts. Automaton has 22453 states and 133894 transitions. Word has length 23 [2022-03-15 20:04:21,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:04:21,853 INFO L470 AbstractCegarLoop]: Abstraction has 22453 states and 133894 transitions. [2022-03-15 20:04:21,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:21,853 INFO L276 IsEmpty]: Start isEmpty. Operand 22453 states and 133894 transitions. [2022-03-15 20:04:21,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 20:04:21,854 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:04:21,854 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:04:21,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2022-03-15 20:04:22,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,68 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:22,068 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:04:22,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:04:22,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1889272910, now seen corresponding path program 1 times [2022-03-15 20:04:22,069 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:04:22,069 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767745460] [2022-03-15 20:04:22,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:22,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:04:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:22,110 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-03-15 20:04:22,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:04:22,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767745460] [2022-03-15 20:04:22,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767745460] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:04:22,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174700895] [2022-03-15 20:04:22,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:22,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:22,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:04:22,120 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:04:22,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2022-03-15 20:04:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:22,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:04:22,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:04:22,349 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-03-15 20:04:22,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:04:22,402 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-03-15 20:04:22,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174700895] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:04:22,402 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:04:22,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2022-03-15 20:04:22,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [105143489] [2022-03-15 20:04:22,402 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:04:22,405 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:04:22,410 INFO L252 McrAutomatonBuilder]: Finished intersection with 50 states and 71 transitions. [2022-03-15 20:04:22,410 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:04:22,500 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [518296#(<= (+ |threadThread1of11ForFork0_#in~arg.offset| |threadThread1of11ForFork0_#in~arg.base|) 1), 518297#(or (< 15 |ULTIMATE.start_main_~i~0#1|) (<= ~x~0 1)), 518298#(or (< 14 |ULTIMATE.start_main_~i~0#1|) (<= ~x~0 1))] [2022-03-15 20:04:22,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 20:04:22,500 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:04:22,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 20:04:22,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-03-15 20:04:22,501 INFO L87 Difference]: Start difference. First operand 22453 states and 133894 transitions. Second operand has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:23,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:04:23,049 INFO L93 Difference]: Finished difference Result 37554 states and 212459 transitions. [2022-03-15 20:04:23,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 20:04:23,050 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-03-15 20:04:23,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:04:23,268 INFO L225 Difference]: With dead ends: 37554 [2022-03-15 20:04:23,269 INFO L226 Difference]: Without dead ends: 37554 [2022-03-15 20:04:23,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-03-15 20:04:23,269 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 69 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:04:23,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 8 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:04:23,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37554 states. [2022-03-15 20:04:24,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37554 to 29568. [2022-03-15 20:04:24,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29568 states, 29561 states have (on average 5.835458881634586) internal successors, (172502), 29567 states have internal predecessors, (172502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:24,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29568 states to 29568 states and 172502 transitions. [2022-03-15 20:04:24,694 INFO L78 Accepts]: Start accepts. Automaton has 29568 states and 172502 transitions. Word has length 27 [2022-03-15 20:04:24,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:04:24,694 INFO L470 AbstractCegarLoop]: Abstraction has 29568 states and 172502 transitions. [2022-03-15 20:04:24,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:24,694 INFO L276 IsEmpty]: Start isEmpty. Operand 29568 states and 172502 transitions. [2022-03-15 20:04:24,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 20:04:24,695 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:04:24,695 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:04:24,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2022-03-15 20:04:24,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable94 [2022-03-15 20:04:24,912 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:04:24,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:04:24,912 INFO L85 PathProgramCache]: Analyzing trace with hash -648613674, now seen corresponding path program 1 times [2022-03-15 20:04:24,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:04:24,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937614498] [2022-03-15 20:04:24,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:24,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:04:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:24,956 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:04:24,956 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:04:24,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937614498] [2022-03-15 20:04:24,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937614498] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:04:24,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767517049] [2022-03-15 20:04:24,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:24,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:24,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:04:24,958 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:04:24,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2022-03-15 20:04:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:25,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:04:25,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:04:25,172 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-15 20:04:25,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:04:25,244 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-15 20:04:25,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767517049] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:04:25,244 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:04:25,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 14 [2022-03-15 20:04:25,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [501967986] [2022-03-15 20:04:25,244 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:04:25,246 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:04:25,251 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 63 transitions. [2022-03-15 20:04:25,251 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:04:25,316 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:04:25,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 20:04:25,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:04:25,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 20:04:25,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-03-15 20:04:25,318 INFO L87 Difference]: Start difference. First operand 29568 states and 172502 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:25,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:04:25,842 INFO L93 Difference]: Finished difference Result 29506 states and 172259 transitions. [2022-03-15 20:04:25,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 20:04:25,850 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-03-15 20:04:25,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:04:26,035 INFO L225 Difference]: With dead ends: 29506 [2022-03-15 20:04:26,035 INFO L226 Difference]: Without dead ends: 29506 [2022-03-15 20:04:26,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-03-15 20:04:26,036 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 60 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:04:26,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 12 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:04:26,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29506 states. [2022-03-15 20:04:26,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29506 to 29506. [2022-03-15 20:04:26,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29506 states, 29500 states have (on average 5.83928813559322) internal successors, (172259), 29505 states have internal predecessors, (172259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:27,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29506 states to 29506 states and 172259 transitions. [2022-03-15 20:04:27,057 INFO L78 Accepts]: Start accepts. Automaton has 29506 states and 172259 transitions. Word has length 27 [2022-03-15 20:04:27,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:04:27,057 INFO L470 AbstractCegarLoop]: Abstraction has 29506 states and 172259 transitions. [2022-03-15 20:04:27,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:27,057 INFO L276 IsEmpty]: Start isEmpty. Operand 29506 states and 172259 transitions. [2022-03-15 20:04:27,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-15 20:04:27,075 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:04:27,075 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:04:27,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2022-03-15 20:04:27,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,70 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:27,292 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:04:27,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:04:27,292 INFO L85 PathProgramCache]: Analyzing trace with hash -2080368825, now seen corresponding path program 1 times [2022-03-15 20:04:27,293 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:04:27,293 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687881421] [2022-03-15 20:04:27,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:27,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:04:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:27,340 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:04:27,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:04:27,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687881421] [2022-03-15 20:04:27,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687881421] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:04:27,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644330023] [2022-03-15 20:04:27,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:27,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:27,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:04:27,342 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:04:27,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2022-03-15 20:04:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:27,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:04:27,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:04:27,572 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-03-15 20:04:27,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:04:27,859 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-03-15 20:04:27,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644330023] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:04:27,860 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:04:27,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 15 [2022-03-15 20:04:27,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [567174102] [2022-03-15 20:04:27,860 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:04:27,862 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:04:27,869 INFO L252 McrAutomatonBuilder]: Finished intersection with 54 states and 75 transitions. [2022-03-15 20:04:27,869 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:04:27,976 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:04:27,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 20:04:27,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:04:27,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 20:04:27,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-15 20:04:27,977 INFO L87 Difference]: Start difference. First operand 29506 states and 172259 transitions. Second operand has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:28,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:04:28,333 INFO L93 Difference]: Finished difference Result 29380 states and 171698 transitions. [2022-03-15 20:04:28,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 20:04:28,334 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-03-15 20:04:28,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:04:28,486 INFO L225 Difference]: With dead ends: 29380 [2022-03-15 20:04:28,486 INFO L226 Difference]: Without dead ends: 29380 [2022-03-15 20:04:28,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-15 20:04:28,487 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 97 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:04:28,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 12 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:04:28,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29380 states. [2022-03-15 20:04:29,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29380 to 29380. [2022-03-15 20:04:29,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29380 states, 29375 states have (on average 5.845038297872341) internal successors, (171698), 29379 states have internal predecessors, (171698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:29,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29380 states to 29380 states and 171698 transitions. [2022-03-15 20:04:29,730 INFO L78 Accepts]: Start accepts. Automaton has 29380 states and 171698 transitions. Word has length 31 [2022-03-15 20:04:29,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:04:29,731 INFO L470 AbstractCegarLoop]: Abstraction has 29380 states and 171698 transitions. [2022-03-15 20:04:29,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:29,731 INFO L276 IsEmpty]: Start isEmpty. Operand 29380 states and 171698 transitions. [2022-03-15 20:04:29,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-15 20:04:29,735 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:04:29,735 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:04:29,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2022-03-15 20:04:29,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,71 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:29,951 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:04:29,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:04:29,952 INFO L85 PathProgramCache]: Analyzing trace with hash -807464553, now seen corresponding path program 1 times [2022-03-15 20:04:29,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:04:29,953 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246044058] [2022-03-15 20:04:29,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:29,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:04:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:30,016 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:04:30,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:04:30,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246044058] [2022-03-15 20:04:30,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246044058] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:04:30,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554545907] [2022-03-15 20:04:30,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:30,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:30,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:04:30,032 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:04:30,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2022-03-15 20:04:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:30,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:04:30,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:04:30,325 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-15 20:04:30,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:04:30,414 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-15 20:04:30,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554545907] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:04:30,415 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:04:30,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 16 [2022-03-15 20:04:30,415 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [429709250] [2022-03-15 20:04:30,415 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:04:30,417 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:04:30,426 INFO L252 McrAutomatonBuilder]: Finished intersection with 62 states and 87 transitions. [2022-03-15 20:04:30,426 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:04:30,512 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:04:30,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 20:04:30,512 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:04:30,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 20:04:30,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2022-03-15 20:04:30,512 INFO L87 Difference]: Start difference. First operand 29380 states and 171698 transitions. Second operand has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:30,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:04:30,970 INFO L93 Difference]: Finished difference Result 29126 states and 170435 transitions. [2022-03-15 20:04:30,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 20:04:30,970 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-03-15 20:04:30,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:04:31,115 INFO L225 Difference]: With dead ends: 29126 [2022-03-15 20:04:31,115 INFO L226 Difference]: Without dead ends: 29126 [2022-03-15 20:04:31,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2022-03-15 20:04:31,115 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 109 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:04:31,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 13 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:04:31,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29126 states. [2022-03-15 20:04:31,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29126 to 29126. [2022-03-15 20:04:31,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29126 states, 29122 states have (on average 5.852448320857084) internal successors, (170435), 29125 states have internal predecessors, (170435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:32,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29126 states to 29126 states and 170435 transitions. [2022-03-15 20:04:32,321 INFO L78 Accepts]: Start accepts. Automaton has 29126 states and 170435 transitions. Word has length 35 [2022-03-15 20:04:32,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:04:32,323 INFO L470 AbstractCegarLoop]: Abstraction has 29126 states and 170435 transitions. [2022-03-15 20:04:32,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:32,323 INFO L276 IsEmpty]: Start isEmpty. Operand 29126 states and 170435 transitions. [2022-03-15 20:04:32,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 20:04:32,332 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:04:32,332 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:04:32,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2022-03-15 20:04:32,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,72 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:32,539 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:04:32,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:04:32,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1005004730, now seen corresponding path program 1 times [2022-03-15 20:04:32,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:04:32,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641244120] [2022-03-15 20:04:32,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:32,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:04:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:32,629 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:04:32,630 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:04:32,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641244120] [2022-03-15 20:04:32,630 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641244120] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:04:32,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593811807] [2022-03-15 20:04:32,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:32,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:32,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:04:32,631 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:04:32,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2022-03-15 20:04:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:32,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:04:32,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:04:32,879 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-15 20:04:32,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:04:32,974 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-15 20:04:32,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593811807] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:04:32,974 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:04:32,974 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 4] total 17 [2022-03-15 20:04:32,974 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1239381930] [2022-03-15 20:04:32,974 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:04:32,977 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:04:32,989 INFO L252 McrAutomatonBuilder]: Finished intersection with 70 states and 99 transitions. [2022-03-15 20:04:32,990 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:04:33,089 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:04:33,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 20:04:33,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:04:33,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 20:04:33,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2022-03-15 20:04:33,090 INFO L87 Difference]: Start difference. First operand 29126 states and 170435 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:33,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:04:33,642 INFO L93 Difference]: Finished difference Result 28616 states and 167638 transitions. [2022-03-15 20:04:33,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 20:04:33,650 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-15 20:04:33,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:04:33,831 INFO L225 Difference]: With dead ends: 28616 [2022-03-15 20:04:33,831 INFO L226 Difference]: Without dead ends: 28616 [2022-03-15 20:04:33,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2022-03-15 20:04:33,832 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 128 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:04:33,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 15 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:04:33,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28616 states. [2022-03-15 20:04:34,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28616 to 28616. [2022-03-15 20:04:34,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28616 states, 28613 states have (on average 5.8588054380875825) internal successors, (167638), 28615 states have internal predecessors, (167638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:34,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28616 states to 28616 states and 167638 transitions. [2022-03-15 20:04:34,825 INFO L78 Accepts]: Start accepts. Automaton has 28616 states and 167638 transitions. Word has length 39 [2022-03-15 20:04:34,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:04:34,825 INFO L470 AbstractCegarLoop]: Abstraction has 28616 states and 167638 transitions. [2022-03-15 20:04:34,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:34,825 INFO L276 IsEmpty]: Start isEmpty. Operand 28616 states and 167638 transitions. [2022-03-15 20:04:34,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-15 20:04:34,843 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:04:34,843 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:04:34,860 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2022-03-15 20:04:35,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2022-03-15 20:04:35,060 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:04:35,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:04:35,060 INFO L85 PathProgramCache]: Analyzing trace with hash -475913260, now seen corresponding path program 1 times [2022-03-15 20:04:35,061 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:04:35,061 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682741191] [2022-03-15 20:04:35,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:35,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:04:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:35,134 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:04:35,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:04:35,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682741191] [2022-03-15 20:04:35,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682741191] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:04:35,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914928679] [2022-03-15 20:04:35,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:35,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:35,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:04:35,135 INFO L229 MonitoredProcess]: Starting monitored process 74 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:04:35,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2022-03-15 20:04:35,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:35,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:04:35,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:04:35,388 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-03-15 20:04:35,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:04:35,488 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-03-15 20:04:35,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914928679] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:04:35,488 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:04:35,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 18 [2022-03-15 20:04:35,488 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1081373633] [2022-03-15 20:04:35,488 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:04:35,492 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:04:35,716 INFO L252 McrAutomatonBuilder]: Finished intersection with 78 states and 111 transitions. [2022-03-15 20:04:35,716 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:04:35,828 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:04:35,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 20:04:35,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:04:35,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 20:04:35,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2022-03-15 20:04:35,829 INFO L87 Difference]: Start difference. First operand 28616 states and 167638 transitions. Second operand has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:36,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:04:36,172 INFO L93 Difference]: Finished difference Result 27594 states and 161515 transitions. [2022-03-15 20:04:36,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 20:04:36,172 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-03-15 20:04:36,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:04:36,308 INFO L225 Difference]: With dead ends: 27594 [2022-03-15 20:04:36,309 INFO L226 Difference]: Without dead ends: 27594 [2022-03-15 20:04:36,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2022-03-15 20:04:36,309 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 127 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:04:36,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 17 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:04:36,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27594 states. [2022-03-15 20:04:37,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27594 to 27594. [2022-03-15 20:04:37,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27594 states, 27592 states have (on average 5.8536894752102056) internal successors, (161515), 27593 states have internal predecessors, (161515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:37,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27594 states to 27594 states and 161515 transitions. [2022-03-15 20:04:37,567 INFO L78 Accepts]: Start accepts. Automaton has 27594 states and 161515 transitions. Word has length 43 [2022-03-15 20:04:37,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:04:37,567 INFO L470 AbstractCegarLoop]: Abstraction has 27594 states and 161515 transitions. [2022-03-15 20:04:37,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:37,567 INFO L276 IsEmpty]: Start isEmpty. Operand 27594 states and 161515 transitions. [2022-03-15 20:04:37,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 20:04:37,600 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:04:37,600 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:04:37,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2022-03-15 20:04:37,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,74 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:37,817 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:04:37,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:04:37,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1063218369, now seen corresponding path program 1 times [2022-03-15 20:04:37,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:04:37,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104853372] [2022-03-15 20:04:37,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:37,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:04:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:37,904 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:04:37,904 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:04:37,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104853372] [2022-03-15 20:04:37,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104853372] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:04:37,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509060472] [2022-03-15 20:04:37,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:37,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:37,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:04:37,906 INFO L229 MonitoredProcess]: Starting monitored process 75 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:04:37,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2022-03-15 20:04:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:38,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:04:38,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:04:38,180 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-03-15 20:04:38,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:04:38,289 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-03-15 20:04:38,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509060472] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:04:38,290 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:04:38,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 4, 4] total 19 [2022-03-15 20:04:38,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2129518469] [2022-03-15 20:04:38,290 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:04:38,294 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:04:38,313 INFO L252 McrAutomatonBuilder]: Finished intersection with 86 states and 123 transitions. [2022-03-15 20:04:38,313 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:04:38,442 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:04:38,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 20:04:38,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:04:38,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 20:04:38,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2022-03-15 20:04:38,443 INFO L87 Difference]: Start difference. First operand 27594 states and 161515 transitions. Second operand has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:38,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:04:38,888 INFO L93 Difference]: Finished difference Result 25548 states and 148226 transitions. [2022-03-15 20:04:38,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 20:04:38,889 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 20:04:38,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:04:39,010 INFO L225 Difference]: With dead ends: 25548 [2022-03-15 20:04:39,010 INFO L226 Difference]: Without dead ends: 25548 [2022-03-15 20:04:39,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2022-03-15 20:04:39,011 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 200 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:04:39,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 18 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:04:39,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25548 states. [2022-03-15 20:04:39,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25548 to 18427. [2022-03-15 20:04:39,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18427 states, 18426 states have (on average 5.946325843916205) internal successors, (109567), 18426 states have internal predecessors, (109567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:39,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18427 states to 18427 states and 109567 transitions. [2022-03-15 20:04:39,799 INFO L78 Accepts]: Start accepts. Automaton has 18427 states and 109567 transitions. Word has length 47 [2022-03-15 20:04:39,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:04:39,799 INFO L470 AbstractCegarLoop]: Abstraction has 18427 states and 109567 transitions. [2022-03-15 20:04:39,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:39,799 INFO L276 IsEmpty]: Start isEmpty. Operand 18427 states and 109567 transitions. [2022-03-15 20:04:39,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 20:04:39,822 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:04:39,822 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:04:39,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2022-03-15 20:04:40,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100,75 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:04:40,035 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:04:40,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:04:40,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1125242358, now seen corresponding path program 1 times [2022-03-15 20:04:40,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:04:40,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529795532] [2022-03-15 20:04:40,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:40,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:04:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:04:40,048 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 20:04:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:04:40,061 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 20:04:40,061 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 20:04:40,061 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-03-15 20:04:40,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-03-15 20:04:40,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-15 20:04:40,062 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:04:40,062 WARN L235 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-15 20:04:40,062 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2022-03-15 20:04:40,073 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,073 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,073 WARN L322 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,074 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,075 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,076 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,077 WARN L322 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,077 WARN L322 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,077 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,077 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,077 WARN L322 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,077 WARN L322 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,077 WARN L322 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,077 WARN L322 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,077 WARN L322 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,077 WARN L322 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,077 WARN L322 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,077 WARN L322 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,077 WARN L322 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,077 WARN L322 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,077 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,077 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,077 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,078 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,079 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,080 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,081 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe |threadThread12of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe |threadThread12of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,082 WARN L322 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe |threadThread12of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe |threadThread12of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe |threadThread12of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe |threadThread12of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe |threadThread12of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe |threadThread12of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,083 WARN L322 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,084 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of12ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,085 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of12ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,085 WARN L322 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,085 WARN L322 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,085 WARN L322 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,085 WARN L322 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,085 WARN L322 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,085 WARN L322 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,085 WARN L322 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,085 WARN L322 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,085 WARN L322 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,085 WARN L322 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,085 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,085 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,085 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,085 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,085 WARN L322 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,086 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,086 WARN L322 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,086 WARN L322 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,086 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,086 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,086 WARN L322 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,086 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,086 WARN L322 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,086 WARN L322 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,086 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,086 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,086 WARN L322 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,086 WARN L322 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,086 WARN L322 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,087 WARN L322 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,087 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,087 WARN L322 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,087 WARN L322 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,087 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,087 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,087 WARN L322 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,087 WARN L322 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,087 WARN L322 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,087 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,087 WARN L322 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,087 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,087 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,088 WARN L322 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,088 WARN L322 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,088 WARN L322 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,088 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,088 WARN L322 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,088 WARN L322 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,088 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,088 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,088 WARN L322 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,088 WARN L322 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,088 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,088 WARN L322 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,088 WARN L322 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,088 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,089 WARN L322 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,089 WARN L322 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,089 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,089 WARN L322 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,089 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,089 WARN L322 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,089 WARN L322 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,089 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,089 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,089 WARN L322 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,089 WARN L322 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,089 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,089 WARN L322 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,089 WARN L322 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,090 WARN L322 ript$VariableManager]: TermVariabe |threadThread12of12ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,090 WARN L322 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,090 WARN L322 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,090 WARN L322 ript$VariableManager]: TermVariabe |threadThread12of12ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:04:40,091 INFO L148 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2022-03-15 20:04:40,091 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:04:40,092 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:04:40,092 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-15 20:04:40,092 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:04:40,092 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 136 transitions, 500 flow [2022-03-15 20:04:40,093 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 136 transitions, 500 flow [2022-03-15 20:04:40,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 146 places, 136 transitions, 500 flow [2022-03-15 20:04:50,229 INFO L129 PetriNetUnfolder]: 24615/82225 cut-off events. [2022-03-15 20:04:50,229 INFO L130 PetriNetUnfolder]: For 24928/24928 co-relation queries the response was YES. [2022-03-15 20:04:51,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106916 conditions, 82225 events. 24615/82225 cut-off events. For 24928/24928 co-relation queries the response was YES. Maximal size of possible extension queue 1464. Compared 1052807 event pairs, 16398 based on Foata normal form. 0/73981 useless extension candidates. Maximal degree in co-relation 51567. Up to 24576 conditions per place. [2022-03-15 20:04:53,291 INFO L116 LiptonReduction]: Number of co-enabled transitions 9120 [2022-03-15 20:04:54,873 INFO L131 LiptonReduction]: Checked pairs total: 16320 [2022-03-15 20:04:54,873 INFO L133 LiptonReduction]: Total number of compositions: 94 [2022-03-15 20:04:54,874 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 47 transitions, 322 flow [2022-03-15 20:04:57,405 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 45050 states, 45036 states have (on average 6.457389643840483) internal successors, (290815), 45049 states have internal predecessors, (290815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:57,486 INFO L276 IsEmpty]: Start isEmpty. Operand has 45050 states, 45036 states have (on average 6.457389643840483) internal successors, (290815), 45049 states have internal predecessors, (290815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:57,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-03-15 20:04:57,486 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:04:57,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2022-03-15 20:04:57,487 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:04:57,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:04:57,487 INFO L85 PathProgramCache]: Analyzing trace with hash 71396, now seen corresponding path program 1 times [2022-03-15 20:04:57,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:04:57,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614526662] [2022-03-15 20:04:57,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:04:57,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:04:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:04:57,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:04:57,503 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:04:57,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614526662] [2022-03-15 20:04:57,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614526662] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:04:57,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:04:57,503 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:04:57,503 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [611251762] [2022-03-15 20:04:57,503 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:04:57,503 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:04:57,503 INFO L252 McrAutomatonBuilder]: Finished intersection with 3 states and 2 transitions. [2022-03-15 20:04:57,503 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:04:57,503 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:04:57,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:04:57,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:04:57,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:04:57,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:04:57,585 INFO L87 Difference]: Start difference. First operand has 45050 states, 45036 states have (on average 6.457389643840483) internal successors, (290815), 45049 states have internal predecessors, (290815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:04:58,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:04:58,291 INFO L93 Difference]: Finished difference Result 45049 states and 290814 transitions. [2022-03-15 20:04:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:04:58,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-03-15 20:04:58,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:04:58,974 INFO L225 Difference]: With dead ends: 45049 [2022-03-15 20:04:58,974 INFO L226 Difference]: Without dead ends: 45049 [2022-03-15 20:04:58,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:04:58,975 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:04:58,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:04:59,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45049 states. [2022-03-15 20:05:00,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45049 to 45049. [2022-03-15 20:05:00,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45049 states, 45036 states have (on average 6.4573674393818274) internal successors, (290814), 45048 states have internal predecessors, (290814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:00,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45049 states to 45049 states and 290814 transitions. [2022-03-15 20:05:00,957 INFO L78 Accepts]: Start accepts. Automaton has 45049 states and 290814 transitions. Word has length 2 [2022-03-15 20:05:00,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:05:00,957 INFO L470 AbstractCegarLoop]: Abstraction has 45049 states and 290814 transitions. [2022-03-15 20:05:00,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:00,957 INFO L276 IsEmpty]: Start isEmpty. Operand 45049 states and 290814 transitions. [2022-03-15 20:05:00,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-03-15 20:05:00,957 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:05:00,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-03-15 20:05:00,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-15 20:05:00,957 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:05:00,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:05:00,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1582708601, now seen corresponding path program 1 times [2022-03-15 20:05:00,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:05:00,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114569334] [2022-03-15 20:05:00,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:05:00,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:05:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:05:00,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 20:05:00,997 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:05:00,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114569334] [2022-03-15 20:05:00,997 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114569334] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:05:00,997 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:05:00,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:05:00,997 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1236510238] [2022-03-15 20:05:00,997 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:05:00,998 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:05:00,998 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2022-03-15 20:05:00,998 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:05:00,998 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:05:00,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:05:00,998 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:05:00,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:05:00,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:05:00,998 INFO L87 Difference]: Start difference. First operand 45049 states and 290814 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:01,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:05:01,741 INFO L93 Difference]: Finished difference Result 45037 states and 290724 transitions. [2022-03-15 20:05:01,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:05:01,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-03-15 20:05:01,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:05:02,398 INFO L225 Difference]: With dead ends: 45037 [2022-03-15 20:05:02,399 INFO L226 Difference]: Without dead ends: 45037 [2022-03-15 20:05:02,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:05:02,399 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:05:02,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 4 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:05:02,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45037 states. [2022-03-15 20:05:04,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45037 to 45037. [2022-03-15 20:05:04,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45037 states, 45024 states have (on average 6.457089552238806) internal successors, (290724), 45036 states have internal predecessors, (290724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:04,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45037 states to 45037 states and 290724 transitions. [2022-03-15 20:05:04,437 INFO L78 Accepts]: Start accepts. Automaton has 45037 states and 290724 transitions. Word has length 6 [2022-03-15 20:05:04,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:05:04,438 INFO L470 AbstractCegarLoop]: Abstraction has 45037 states and 290724 transitions. [2022-03-15 20:05:04,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:04,438 INFO L276 IsEmpty]: Start isEmpty. Operand 45037 states and 290724 transitions. [2022-03-15 20:05:04,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-03-15 20:05:04,438 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:05:04,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:05:04,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-15 20:05:04,438 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:05:04,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:05:04,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1819355022, now seen corresponding path program 1 times [2022-03-15 20:05:04,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:05:04,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713722536] [2022-03-15 20:05:04,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:05:04,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:05:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:05:04,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:05:04,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:05:04,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713722536] [2022-03-15 20:05:04,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713722536] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:05:04,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160945949] [2022-03-15 20:05:04,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:05:04,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:05:04,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:05:04,468 INFO L229 MonitoredProcess]: Starting monitored process 76 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:05:04,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2022-03-15 20:05:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:05:04,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:05:04,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:05:04,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:05:04,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:05:04,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:05:04,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160945949] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:05:04,683 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:05:04,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2022-03-15 20:05:04,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [887434132] [2022-03-15 20:05:04,683 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:05:04,683 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:05:04,684 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 11 transitions. [2022-03-15 20:05:04,684 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:05:04,690 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:05:04,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 20:05:04,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:05:04,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 20:05:04,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-15 20:05:04,690 INFO L87 Difference]: Start difference. First operand 45037 states and 290724 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:05,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:05:05,463 INFO L93 Difference]: Finished difference Result 45036 states and 290723 transitions. [2022-03-15 20:05:05,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 20:05:05,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-03-15 20:05:05,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:05:06,080 INFO L225 Difference]: With dead ends: 45036 [2022-03-15 20:05:06,084 INFO L226 Difference]: Without dead ends: 45036 [2022-03-15 20:05:06,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-15 20:05:06,086 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:05:06,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 6 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:05:06,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45036 states. [2022-03-15 20:05:07,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45036 to 45036. [2022-03-15 20:05:07,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45036 states, 45024 states have (on average 6.457067341862118) internal successors, (290723), 45035 states have internal predecessors, (290723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:08,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45036 states to 45036 states and 290723 transitions. [2022-03-15 20:05:08,145 INFO L78 Accepts]: Start accepts. Automaton has 45036 states and 290723 transitions. Word has length 7 [2022-03-15 20:05:08,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:05:08,146 INFO L470 AbstractCegarLoop]: Abstraction has 45036 states and 290723 transitions. [2022-03-15 20:05:08,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:08,146 INFO L276 IsEmpty]: Start isEmpty. Operand 45036 states and 290723 transitions. [2022-03-15 20:05:08,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:05:08,146 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:05:08,146 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:05:08,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2022-03-15 20:05:08,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2022-03-15 20:05:08,348 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:05:08,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:05:08,348 INFO L85 PathProgramCache]: Analyzing trace with hash -40216702, now seen corresponding path program 1 times [2022-03-15 20:05:08,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:05:08,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141593789] [2022-03-15 20:05:08,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:05:08,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:05:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:05:08,371 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 20:05:08,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:05:08,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141593789] [2022-03-15 20:05:08,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141593789] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:05:08,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710869400] [2022-03-15 20:05:08,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:05:08,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:05:08,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:05:08,373 INFO L229 MonitoredProcess]: Starting monitored process 77 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:05:08,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2022-03-15 20:05:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:05:08,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 20:05:08,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:05:08,883 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 20:05:08,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:05:08,913 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 20:05:08,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710869400] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:05:08,913 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:05:08,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2022-03-15 20:05:08,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1101905552] [2022-03-15 20:05:08,913 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:05:08,914 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:05:08,914 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 23 transitions. [2022-03-15 20:05:08,914 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:05:08,943 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [495737#(<= (+ |threadThread1of12ForFork0_#in~arg.offset| |threadThread1of12ForFork0_#in~arg.base|) 1)] [2022-03-15 20:05:08,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:05:08,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:05:08,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:05:08,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-15 20:05:08,944 INFO L87 Difference]: Start difference. First operand 45036 states and 290723 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:09,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:05:09,981 INFO L93 Difference]: Finished difference Result 67487 states and 420306 transitions. [2022-03-15 20:05:09,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:05:09,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:05:09,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:05:10,410 INFO L225 Difference]: With dead ends: 67487 [2022-03-15 20:05:10,410 INFO L226 Difference]: Without dead ends: 67487 [2022-03-15 20:05:10,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:05:10,411 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 111 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:05:10,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 6 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:05:10,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67487 states. [2022-03-15 20:05:12,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67487 to 59310. [2022-03-15 20:05:12,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59310 states, 59298 states have (on average 6.329690714695268) internal successors, (375338), 59309 states have internal predecessors, (375338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:13,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59310 states to 59310 states and 375338 transitions. [2022-03-15 20:05:13,527 INFO L78 Accepts]: Start accepts. Automaton has 59310 states and 375338 transitions. Word has length 11 [2022-03-15 20:05:13,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:05:13,527 INFO L470 AbstractCegarLoop]: Abstraction has 59310 states and 375338 transitions. [2022-03-15 20:05:13,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:13,527 INFO L276 IsEmpty]: Start isEmpty. Operand 59310 states and 375338 transitions. [2022-03-15 20:05:13,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 20:05:13,528 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:05:13,528 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-03-15 20:05:13,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2022-03-15 20:05:13,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2022-03-15 20:05:13,745 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:05:13,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:05:13,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1419787997, now seen corresponding path program 1 times [2022-03-15 20:05:13,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:05:13,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452438744] [2022-03-15 20:05:13,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:05:13,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:05:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:05:13,762 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:05:13,762 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:05:13,762 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452438744] [2022-03-15 20:05:13,762 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452438744] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:05:13,762 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748500399] [2022-03-15 20:05:13,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:05:13,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:05:13,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:05:13,764 INFO L229 MonitoredProcess]: Starting monitored process 78 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:05:13,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2022-03-15 20:05:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:05:13,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:05:13,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:05:13,959 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:05:13,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:05:14,012 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:05:14,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748500399] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:05:14,012 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:05:14,012 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 10 [2022-03-15 20:05:14,012 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1173055833] [2022-03-15 20:05:14,013 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:05:14,013 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:05:14,013 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 15 transitions. [2022-03-15 20:05:14,013 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:05:14,028 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:05:14,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 20:05:14,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:05:14,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 20:05:14,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-15 20:05:14,028 INFO L87 Difference]: Start difference. First operand 59310 states and 375338 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:14,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:05:14,946 INFO L93 Difference]: Finished difference Result 59308 states and 375335 transitions. [2022-03-15 20:05:14,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 20:05:14,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-03-15 20:05:14,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:05:15,794 INFO L225 Difference]: With dead ends: 59308 [2022-03-15 20:05:15,795 INFO L226 Difference]: Without dead ends: 59308 [2022-03-15 20:05:15,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-15 20:05:15,797 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 16 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:05:15,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 6 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:05:15,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59308 states. [2022-03-15 20:05:17,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59308 to 59308. [2022-03-15 20:05:17,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59308 states, 59297 states have (on average 6.329746867463784) internal successors, (375335), 59307 states have internal predecessors, (375335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:18,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59308 states to 59308 states and 375335 transitions. [2022-03-15 20:05:18,582 INFO L78 Accepts]: Start accepts. Automaton has 59308 states and 375335 transitions. Word has length 11 [2022-03-15 20:05:18,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:05:18,582 INFO L470 AbstractCegarLoop]: Abstraction has 59308 states and 375335 transitions. [2022-03-15 20:05:18,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:18,582 INFO L276 IsEmpty]: Start isEmpty. Operand 59308 states and 375335 transitions. [2022-03-15 20:05:18,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-15 20:05:18,582 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:05:18,582 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-03-15 20:05:18,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2022-03-15 20:05:18,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106,78 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:05:18,801 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:05:18,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:05:18,801 INFO L85 PathProgramCache]: Analyzing trace with hash 2126488496, now seen corresponding path program 1 times [2022-03-15 20:05:18,802 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:05:18,802 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183259200] [2022-03-15 20:05:18,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:05:18,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:05:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:05:18,854 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:05:18,855 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:05:18,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183259200] [2022-03-15 20:05:18,855 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183259200] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:05:18,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444659714] [2022-03-15 20:05:18,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:05:18,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:05:18,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:05:18,864 INFO L229 MonitoredProcess]: Starting monitored process 79 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:05:18,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2022-03-15 20:05:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:05:19,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:05:19,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:05:19,067 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 20:05:19,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:05:19,113 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 20:05:19,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444659714] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:05:19,114 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:05:19,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2022-03-15 20:05:19,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [116737096] [2022-03-15 20:05:19,114 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:05:19,114 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:05:19,115 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 27 transitions. [2022-03-15 20:05:19,115 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:05:19,132 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:05:19,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 20:05:19,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:05:19,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 20:05:19,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 20:05:19,134 INFO L87 Difference]: Start difference. First operand 59308 states and 375335 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:20,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:05:20,401 INFO L93 Difference]: Finished difference Result 59302 states and 375322 transitions. [2022-03-15 20:05:20,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 20:05:20,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-03-15 20:05:20,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:05:21,049 INFO L225 Difference]: With dead ends: 59302 [2022-03-15 20:05:21,050 INFO L226 Difference]: Without dead ends: 59302 [2022-03-15 20:05:21,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 20:05:21,050 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 26 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:05:21,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 7 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:05:21,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59302 states. [2022-03-15 20:05:23,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59302 to 59302. [2022-03-15 20:05:23,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59302 states, 59292 states have (on average 6.330061391081427) internal successors, (375322), 59301 states have internal predecessors, (375322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:23,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59302 states to 59302 states and 375322 transitions. [2022-03-15 20:05:23,732 INFO L78 Accepts]: Start accepts. Automaton has 59302 states and 375322 transitions. Word has length 15 [2022-03-15 20:05:23,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:05:23,732 INFO L470 AbstractCegarLoop]: Abstraction has 59302 states and 375322 transitions. [2022-03-15 20:05:23,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:23,733 INFO L276 IsEmpty]: Start isEmpty. Operand 59302 states and 375322 transitions. [2022-03-15 20:05:23,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 20:05:23,733 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:05:23,733 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:05:23,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2022-03-15 20:05:23,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107,79 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:05:23,950 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:05:23,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:05:23,950 INFO L85 PathProgramCache]: Analyzing trace with hash 237689698, now seen corresponding path program 1 times [2022-03-15 20:05:23,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:05:23,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115058508] [2022-03-15 20:05:23,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:05:23,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:05:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:05:23,983 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:05:23,983 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:05:23,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115058508] [2022-03-15 20:05:23,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115058508] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:05:23,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591388059] [2022-03-15 20:05:23,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:05:23,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:05:23,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:05:23,985 INFO L229 MonitoredProcess]: Starting monitored process 80 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:05:23,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2022-03-15 20:05:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:05:24,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:05:24,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:05:24,224 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-15 20:05:24,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:05:24,279 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-15 20:05:24,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591388059] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:05:24,279 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:05:24,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 12 [2022-03-15 20:05:24,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1910527865] [2022-03-15 20:05:24,279 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:05:24,280 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:05:24,282 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 39 transitions. [2022-03-15 20:05:24,282 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:05:24,321 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:05:24,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 20:05:24,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:05:24,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 20:05:24,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:05:24,321 INFO L87 Difference]: Start difference. First operand 59302 states and 375322 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:25,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:05:25,125 INFO L93 Difference]: Finished difference Result 59288 states and 375283 transitions. [2022-03-15 20:05:25,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 20:05:25,125 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-03-15 20:05:25,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:05:25,758 INFO L225 Difference]: With dead ends: 59288 [2022-03-15 20:05:25,758 INFO L226 Difference]: Without dead ends: 59288 [2022-03-15 20:05:25,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-03-15 20:05:25,759 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 32 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:05:25,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 9 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:05:25,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59288 states. [2022-03-15 20:05:27,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59288 to 59288. [2022-03-15 20:05:27,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59288 states, 59279 states have (on average 6.330791680021592) internal successors, (375283), 59287 states have internal predecessors, (375283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:28,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59288 states to 59288 states and 375283 transitions. [2022-03-15 20:05:28,521 INFO L78 Accepts]: Start accepts. Automaton has 59288 states and 375283 transitions. Word has length 19 [2022-03-15 20:05:28,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:05:28,521 INFO L470 AbstractCegarLoop]: Abstraction has 59288 states and 375283 transitions. [2022-03-15 20:05:28,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:28,521 INFO L276 IsEmpty]: Start isEmpty. Operand 59288 states and 375283 transitions. [2022-03-15 20:05:28,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-03-15 20:05:28,522 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:05:28,522 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:05:28,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Forceful destruction successful, exit code 0 [2022-03-15 20:05:28,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable108 [2022-03-15 20:05:28,739 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:05:28,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:05:28,739 INFO L85 PathProgramCache]: Analyzing trace with hash 15687283, now seen corresponding path program 1 times [2022-03-15 20:05:28,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:05:28,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330212542] [2022-03-15 20:05:28,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:05:28,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:05:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:05:28,776 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:05:28,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:05:28,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330212542] [2022-03-15 20:05:28,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330212542] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:05:28,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437470720] [2022-03-15 20:05:28,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:05:28,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:05:28,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:05:28,778 INFO L229 MonitoredProcess]: Starting monitored process 81 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:05:28,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2022-03-15 20:05:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:05:28,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:05:28,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:05:29,010 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-15 20:05:29,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:05:29,061 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-15 20:05:29,061 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437470720] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:05:29,062 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:05:29,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 13 [2022-03-15 20:05:29,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [611647213] [2022-03-15 20:05:29,062 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:05:29,063 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:05:29,066 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 51 transitions. [2022-03-15 20:05:29,066 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:05:29,134 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:05:29,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 20:05:29,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:05:29,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 20:05:29,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-03-15 20:05:29,134 INFO L87 Difference]: Start difference. First operand 59288 states and 375283 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:30,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:05:30,030 INFO L93 Difference]: Finished difference Result 59258 states and 375182 transitions. [2022-03-15 20:05:30,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 20:05:30,030 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-03-15 20:05:30,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:05:30,407 INFO L225 Difference]: With dead ends: 59258 [2022-03-15 20:05:30,407 INFO L226 Difference]: Without dead ends: 59258 [2022-03-15 20:05:30,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-03-15 20:05:30,407 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 62 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:05:30,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 9 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:05:30,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59258 states. [2022-03-15 20:05:32,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59258 to 59258. [2022-03-15 20:05:32,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59258 states, 59250 states have (on average 6.3321856540084385) internal successors, (375182), 59257 states have internal predecessors, (375182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:33,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59258 states to 59258 states and 375182 transitions. [2022-03-15 20:05:33,352 INFO L78 Accepts]: Start accepts. Automaton has 59258 states and 375182 transitions. Word has length 23 [2022-03-15 20:05:33,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:05:33,352 INFO L470 AbstractCegarLoop]: Abstraction has 59258 states and 375182 transitions. [2022-03-15 20:05:33,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:33,352 INFO L276 IsEmpty]: Start isEmpty. Operand 59258 states and 375182 transitions. [2022-03-15 20:05:33,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 20:05:33,353 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:05:33,353 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:05:33,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2022-03-15 20:05:33,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,81 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:05:33,559 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:05:33,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:05:33,559 INFO L85 PathProgramCache]: Analyzing trace with hash 682255715, now seen corresponding path program 1 times [2022-03-15 20:05:33,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:05:33,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356018322] [2022-03-15 20:05:33,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:05:33,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:05:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:05:33,614 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:05:33,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:05:33,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356018322] [2022-03-15 20:05:33,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356018322] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:05:33,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385846922] [2022-03-15 20:05:33,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:05:33,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:05:33,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:05:33,636 INFO L229 MonitoredProcess]: Starting monitored process 82 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:05:33,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2022-03-15 20:05:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:05:33,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:05:33,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:05:33,853 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-15 20:05:33,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:05:33,901 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-15 20:05:33,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385846922] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:05:33,901 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:05:33,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 14 [2022-03-15 20:05:33,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1388134483] [2022-03-15 20:05:33,902 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:05:33,907 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:05:33,911 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 63 transitions. [2022-03-15 20:05:33,911 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:05:33,960 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:05:33,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 20:05:33,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:05:33,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 20:05:33,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-03-15 20:05:33,961 INFO L87 Difference]: Start difference. First operand 59258 states and 375182 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:34,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:05:34,783 INFO L93 Difference]: Finished difference Result 59196 states and 374939 transitions. [2022-03-15 20:05:34,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 20:05:34,784 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-03-15 20:05:34,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:05:35,405 INFO L225 Difference]: With dead ends: 59196 [2022-03-15 20:05:35,405 INFO L226 Difference]: Without dead ends: 59196 [2022-03-15 20:05:35,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-03-15 20:05:35,405 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 72 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:05:35,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 10 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:05:35,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59196 states. [2022-03-15 20:05:37,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59196 to 59196. [2022-03-15 20:05:37,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59196 states, 59189 states have (on average 6.33460609234824) internal successors, (374939), 59195 states have internal predecessors, (374939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:38,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59196 states to 59196 states and 374939 transitions. [2022-03-15 20:05:38,243 INFO L78 Accepts]: Start accepts. Automaton has 59196 states and 374939 transitions. Word has length 27 [2022-03-15 20:05:38,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:05:38,243 INFO L470 AbstractCegarLoop]: Abstraction has 59196 states and 374939 transitions. [2022-03-15 20:05:38,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:38,244 INFO L276 IsEmpty]: Start isEmpty. Operand 59196 states and 374939 transitions. [2022-03-15 20:05:38,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-15 20:05:38,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:05:38,247 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:05:38,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2022-03-15 20:05:38,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,82 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:05:38,464 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 20:05:38,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:05:38,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1554573490, now seen corresponding path program 1 times [2022-03-15 20:05:38,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:05:38,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733246446] [2022-03-15 20:05:38,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:05:38,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:05:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:05:38,526 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:05:38,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:05:38,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733246446] [2022-03-15 20:05:38,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733246446] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 20:05:38,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65731660] [2022-03-15 20:05:38,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:05:38,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:05:38,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:05:38,527 INFO L229 MonitoredProcess]: Starting monitored process 83 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:05:38,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2022-03-15 20:05:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:05:38,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 20:05:38,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:05:38,830 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-03-15 20:05:38,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 20:05:38,905 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-03-15 20:05:38,905 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65731660] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 20:05:38,905 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 20:05:38,905 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 15 [2022-03-15 20:05:38,905 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1661099148] [2022-03-15 20:05:38,905 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:05:38,908 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:05:38,914 INFO L252 McrAutomatonBuilder]: Finished intersection with 54 states and 75 transitions. [2022-03-15 20:05:38,914 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:05:39,002 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:05:39,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 20:05:39,003 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:05:39,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 20:05:39,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-15 20:05:39,003 INFO L87 Difference]: Start difference. First operand 59196 states and 374939 transitions. Second operand has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:05:40,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:05:40,397 INFO L93 Difference]: Finished difference Result 59070 states and 374378 transitions. [2022-03-15 20:05:40,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 20:05:40,397 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-03-15 20:05:40,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:05:41,141 INFO L225 Difference]: With dead ends: 59070 [2022-03-15 20:05:41,141 INFO L226 Difference]: Without dead ends: 59070 [2022-03-15 20:05:41,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-15 20:05:41,142 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 83 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:05:41,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 12 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:05:41,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59070 states.