/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-wmm/safe030_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 17:56:44,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 17:56:44,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 17:56:44,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 17:56:44,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 17:56:44,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 17:56:44,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 17:56:44,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 17:56:44,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 17:56:44,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 17:56:44,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 17:56:44,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 17:56:44,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 17:56:44,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 17:56:44,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 17:56:44,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 17:56:44,886 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 17:56:44,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 17:56:44,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 17:56:44,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 17:56:44,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 17:56:44,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 17:56:44,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 17:56:44,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 17:56:44,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-15 17:56:44,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 17:56:44,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 17:56:44,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 17:56:44,912 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 17:56:44,934 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 17:56:44,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 17:56:44,935 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 17:56:44,937 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 17:56:44,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 17:56:44,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 17:56:44,938 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 17:56:44,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 17:56:44,938 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 17:56:44,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 17:56:44,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 17:56:44,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 17:56:44,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 17:56:44,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 17:56:44,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 17:56:44,940 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 17:56:44,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 17:56:44,940 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 17:56:44,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 17:56:44,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 17:56:44,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 17:56:44,940 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 17:56:44,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 17:56:44,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 17:56:44,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 17:56:44,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 17:56:44,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 17:56:44,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 17:56:44,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 17:56:44,942 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 17:56:44,942 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 17:56:44,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 17:56:44,942 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 17:56:45,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 17:56:45,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 17:56:45,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 17:56:45,213 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 17:56:45,214 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 17:56:45,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2022-03-15 17:56:45,284 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23c102830/16e612dad4d847a9a4cbabc2995dfa57/FLAG1ae7a5ca7 [2022-03-15 17:56:45,745 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 17:56:45,746 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2022-03-15 17:56:45,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23c102830/16e612dad4d847a9a4cbabc2995dfa57/FLAG1ae7a5ca7 [2022-03-15 17:56:45,776 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23c102830/16e612dad4d847a9a4cbabc2995dfa57 [2022-03-15 17:56:45,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 17:56:45,779 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 17:56:45,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 17:56:45,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 17:56:45,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 17:56:45,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 05:56:45" (1/1) ... [2022-03-15 17:56:45,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eefbe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:45, skipping insertion in model container [2022-03-15 17:56:45,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 05:56:45" (1/1) ... [2022-03-15 17:56:45,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 17:56:45,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 17:56:46,001 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-wmm/safe030_tso.i[945,958] [2022-03-15 17:56:46,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 17:56:46,134 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 17:56:46,145 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-wmm/safe030_tso.i[945,958] [2022-03-15 17:56:46,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 17:56:46,231 INFO L208 MainTranslator]: Completed translation [2022-03-15 17:56:46,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:46 WrapperNode [2022-03-15 17:56:46,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 17:56:46,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 17:56:46,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 17:56:46,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 17:56:46,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:46" (1/1) ... [2022-03-15 17:56:46,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:46" (1/1) ... [2022-03-15 17:56:46,299 INFO L137 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2022-03-15 17:56:46,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 17:56:46,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 17:56:46,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 17:56:46,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 17:56:46,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:46" (1/1) ... [2022-03-15 17:56:46,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:46" (1/1) ... [2022-03-15 17:56:46,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:46" (1/1) ... [2022-03-15 17:56:46,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:46" (1/1) ... [2022-03-15 17:56:46,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:46" (1/1) ... [2022-03-15 17:56:46,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:46" (1/1) ... [2022-03-15 17:56:46,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:46" (1/1) ... [2022-03-15 17:56:46,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 17:56:46,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 17:56:46,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 17:56:46,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 17:56:46,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:46" (1/1) ... [2022-03-15 17:56:46,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 17:56:46,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 17:56:46,385 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 17:56:46,408 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 17:56:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 17:56:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 17:56:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 17:56:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 17:56:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 17:56:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-03-15 17:56:46,432 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-03-15 17:56:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-03-15 17:56:46,432 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-03-15 17:56:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-03-15 17:56:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-03-15 17:56:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 17:56:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 17:56:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 17:56:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 17:56:46,435 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 17:56:46,581 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 17:56:46,583 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 17:56:46,730 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 17:56:46,735 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 17:56:46,736 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 17:56:46,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 05:56:46 BoogieIcfgContainer [2022-03-15 17:56:46,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 17:56:46,739 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 17:56:46,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 17:56:46,742 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 17:56:46,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 05:56:45" (1/3) ... [2022-03-15 17:56:46,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1ea96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 05:56:46, skipping insertion in model container [2022-03-15 17:56:46,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:46" (2/3) ... [2022-03-15 17:56:46,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1ea96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 05:56:46, skipping insertion in model container [2022-03-15 17:56:46,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 05:56:46" (3/3) ... [2022-03-15 17:56:46,744 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.i [2022-03-15 17:56:46,749 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 17:56:46,749 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 17:56:46,749 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 17:56:46,749 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 17:56:46,781 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,781 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,781 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,781 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,782 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,782 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,782 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,782 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,783 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,783 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,783 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,783 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,784 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,784 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,784 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,784 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,784 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,784 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,784 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,785 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,785 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,785 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,786 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,786 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,786 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,786 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,786 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,787 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,787 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,787 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,787 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,787 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,788 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,788 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,788 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,788 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,791 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,792 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,792 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,792 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,794 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,794 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,794 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,794 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,795 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,795 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,796 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,796 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:46,796 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-15 17:56:46,834 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 17:56:46,840 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 17:56:46,841 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-15 17:56:46,864 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 17:56:46,871 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 90 transitions, 195 flow [2022-03-15 17:56:46,874 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 90 transitions, 195 flow [2022-03-15 17:56:46,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 90 transitions, 195 flow [2022-03-15 17:56:46,933 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2022-03-15 17:56:46,933 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-03-15 17:56:46,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2022-03-15 17:56:46,941 INFO L116 LiptonReduction]: Number of co-enabled transitions 1620 [2022-03-15 17:56:49,101 INFO L131 LiptonReduction]: Checked pairs total: 3129 [2022-03-15 17:56:49,101 INFO L133 LiptonReduction]: Total number of compositions: 78 [2022-03-15 17:56:49,108 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2022-03-15 17:56:49,153 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 234 states, 233 states have (on average 2.815450643776824) internal successors, (656), 233 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:56:49,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 234 states, 233 states have (on average 2.815450643776824) internal successors, (656), 233 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:56:49,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-03-15 17:56:49,161 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:56:49,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:56:49,162 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:56:49,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:56:49,166 INFO L85 PathProgramCache]: Analyzing trace with hash 619891517, now seen corresponding path program 1 times [2022-03-15 17:56:49,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:56:49,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641570020] [2022-03-15 17:56:49,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:56:49,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:56:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:56:49,389 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 17:56:49,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:56:49,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641570020] [2022-03-15 17:56:49,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641570020] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:56:49,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:56:49,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 17:56:49,392 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [198581417] [2022-03-15 17:56:49,393 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:56:49,398 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:56:49,411 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2022-03-15 17:56:49,411 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:56:49,414 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 17:56:49,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 17:56:49,417 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:56:49,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 17:56:49,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 17:56:49,448 INFO L87 Difference]: Start difference. First operand has 234 states, 233 states have (on average 2.815450643776824) internal successors, (656), 233 states have internal predecessors, (656), 0 states have call successors, (0), 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 4.0) internal successors, (8), 2 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 17:56:49,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:56:49,495 INFO L93 Difference]: Finished difference Result 331 states and 883 transitions. [2022-03-15 17:56:49,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 17:56:49,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 8 [2022-03-15 17:56:49,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:56:49,507 INFO L225 Difference]: With dead ends: 331 [2022-03-15 17:56:49,507 INFO L226 Difference]: Without dead ends: 279 [2022-03-15 17:56:49,508 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 17:56:49,510 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:56:49,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:56:49,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-03-15 17:56:49,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 249. [2022-03-15 17:56:49,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 248 states have (on average 2.5483870967741935) internal successors, (632), 248 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:56:49,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 632 transitions. [2022-03-15 17:56:49,563 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 632 transitions. Word has length 8 [2022-03-15 17:56:49,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:56:49,564 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 632 transitions. [2022-03-15 17:56:49,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 17:56:49,564 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 632 transitions. [2022-03-15 17:56:49,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-03-15 17:56:49,565 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:56:49,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:56:49,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 17:56:49,566 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:56:49,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:56:49,566 INFO L85 PathProgramCache]: Analyzing trace with hash 2037513337, now seen corresponding path program 1 times [2022-03-15 17:56:49,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:56:49,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597398854] [2022-03-15 17:56:49,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:56:49,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:56:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:56:49,653 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 17:56:49,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:56:49,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597398854] [2022-03-15 17:56:49,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597398854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:56:49,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:56:49,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 17:56:49,655 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2051774937] [2022-03-15 17:56:49,655 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:56:49,656 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:56:49,658 INFO L252 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2022-03-15 17:56:49,658 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:56:49,782 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1405#(or (not (= 2 ~y~0)) (not (= 2 ~z~0)))] [2022-03-15 17:56:49,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 17:56:49,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:56:49,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 17:56:49,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:56:49,784 INFO L87 Difference]: Start difference. First operand 249 states and 632 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 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 17:56:49,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:56:49,853 INFO L93 Difference]: Finished difference Result 320 states and 763 transitions. [2022-03-15 17:56:49,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 17:56:49,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Word has length 9 [2022-03-15 17:56:49,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:56:49,856 INFO L225 Difference]: With dead ends: 320 [2022-03-15 17:56:49,856 INFO L226 Difference]: Without dead ends: 296 [2022-03-15 17:56:49,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:56:49,857 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 28 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:56:49,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 9 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 17:56:49,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-03-15 17:56:49,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 224. [2022-03-15 17:56:49,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 223 states have (on average 2.4439461883408073) internal successors, (545), 223 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:56:49,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 545 transitions. [2022-03-15 17:56:49,876 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 545 transitions. Word has length 9 [2022-03-15 17:56:49,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:56:49,877 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 545 transitions. [2022-03-15 17:56:49,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 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 17:56:49,877 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 545 transitions. [2022-03-15 17:56:49,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-03-15 17:56:49,878 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:56:49,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:56:49,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 17:56:49,878 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:56:49,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:56:49,879 INFO L85 PathProgramCache]: Analyzing trace with hash 2036742615, now seen corresponding path program 1 times [2022-03-15 17:56:49,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:56:49,880 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696676207] [2022-03-15 17:56:49,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:56:49,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:56:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:56:49,975 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 17:56:49,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:56:49,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696676207] [2022-03-15 17:56:49,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696676207] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:56:49,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:56:49,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 17:56:49,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [974926949] [2022-03-15 17:56:49,976 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:56:49,977 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:56:49,978 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2022-03-15 17:56:49,978 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:56:49,997 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2178#(or (not (= 2 ~x~0)) (not (= 2 ~z~0)))] [2022-03-15 17:56:49,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 17:56:49,997 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:56:49,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 17:56:49,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:56:49,998 INFO L87 Difference]: Start difference. First operand 224 states and 545 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:56:50,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:56:50,053 INFO L93 Difference]: Finished difference Result 296 states and 688 transitions. [2022-03-15 17:56:50,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 17:56:50,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 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 9 [2022-03-15 17:56:50,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:56:50,056 INFO L225 Difference]: With dead ends: 296 [2022-03-15 17:56:50,056 INFO L226 Difference]: Without dead ends: 260 [2022-03-15 17:56:50,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:56:50,057 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 34 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:56:50,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 10 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:56:50,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-03-15 17:56:50,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 208. [2022-03-15 17:56:50,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 2.3285024154589373) internal successors, (482), 207 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:56:50,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 482 transitions. [2022-03-15 17:56:50,091 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 482 transitions. Word has length 9 [2022-03-15 17:56:50,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:56:50,091 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 482 transitions. [2022-03-15 17:56:50,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:56:50,092 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 482 transitions. [2022-03-15 17:56:50,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-03-15 17:56:50,093 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:56:50,093 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:56:50,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 17:56:50,093 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:56:50,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:56:50,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1261621221, now seen corresponding path program 1 times [2022-03-15 17:56:50,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:56:50,095 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336031589] [2022-03-15 17:56:50,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:56:50,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:56:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:56:50,149 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 17:56:50,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:56:50,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336031589] [2022-03-15 17:56:50,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336031589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:56:50,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:56:50,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 17:56:50,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1855386326] [2022-03-15 17:56:50,151 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:56:50,151 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:56:50,153 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 23 transitions. [2022-03-15 17:56:50,153 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:56:50,255 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [2895#(or (not (= 2 ~y~0)) (not (= 2 ~z~0))), 2897#(not (= 2 ~z~0)), 2896#(or (not (= 2 ~x~0)) (not (= 2 ~z~0)))] [2022-03-15 17:56:50,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 17:56:50,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:56:50,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 17:56:50,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-03-15 17:56:50,256 INFO L87 Difference]: Start difference. First operand 208 states and 482 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:56:50,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:56:50,335 INFO L93 Difference]: Finished difference Result 257 states and 565 transitions. [2022-03-15 17:56:50,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 17:56:50,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 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 10 [2022-03-15 17:56:50,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:56:50,337 INFO L225 Difference]: With dead ends: 257 [2022-03-15 17:56:50,338 INFO L226 Difference]: Without dead ends: 257 [2022-03-15 17:56:50,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2022-03-15 17:56:50,347 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 53 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:56:50,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 12 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 17:56:50,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-15 17:56:50,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 195. [2022-03-15 17:56:50,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 194 states have (on average 2.2989690721649483) internal successors, (446), 194 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:56:50,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 446 transitions. [2022-03-15 17:56:50,362 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 446 transitions. Word has length 10 [2022-03-15 17:56:50,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:56:50,362 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 446 transitions. [2022-03-15 17:56:50,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:56:50,362 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 446 transitions. [2022-03-15 17:56:50,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 17:56:50,363 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:56:50,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:56:50,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 17:56:50,363 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:56:50,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:56:50,364 INFO L85 PathProgramCache]: Analyzing trace with hash -467765778, now seen corresponding path program 1 times [2022-03-15 17:56:50,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:56:50,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782104864] [2022-03-15 17:56:50,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:56:50,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:56:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:56:50,428 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 17:56:50,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:56:50,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782104864] [2022-03-15 17:56:50,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782104864] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:56:50,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:56:50,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 17:56:50,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [934742319] [2022-03-15 17:56:50,429 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:56:50,430 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:56:50,432 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 55 transitions. [2022-03-15 17:56:50,432 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:56:50,572 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3551#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)))] [2022-03-15 17:56:50,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 17:56:50,573 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:56:50,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 17:56:50,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:56:50,573 INFO L87 Difference]: Start difference. First operand 195 states and 446 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 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 17:56:50,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:56:50,624 INFO L93 Difference]: Finished difference Result 267 states and 586 transitions. [2022-03-15 17:56:50,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 17:56:50,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 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 11 [2022-03-15 17:56:50,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:56:50,626 INFO L225 Difference]: With dead ends: 267 [2022-03-15 17:56:50,626 INFO L226 Difference]: Without dead ends: 243 [2022-03-15 17:56:50,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:56:50,627 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 24 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:56:50,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 10 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:56:50,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-03-15 17:56:50,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 181. [2022-03-15 17:56:50,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 2.283333333333333) internal successors, (411), 180 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:56:50,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 411 transitions. [2022-03-15 17:56:50,634 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 411 transitions. Word has length 11 [2022-03-15 17:56:50,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:56:50,634 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 411 transitions. [2022-03-15 17:56:50,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 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 17:56:50,635 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 411 transitions. [2022-03-15 17:56:50,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 17:56:50,635 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:56:50,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:56:50,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 17:56:50,636 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:56:50,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:56:50,637 INFO L85 PathProgramCache]: Analyzing trace with hash -428914470, now seen corresponding path program 1 times [2022-03-15 17:56:50,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:56:50,640 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761376975] [2022-03-15 17:56:50,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:56:50,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:56:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:56:50,686 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 17:56:50,686 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:56:50,686 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761376975] [2022-03-15 17:56:50,686 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761376975] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:56:50,686 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:56:50,686 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 17:56:50,686 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [331846112] [2022-03-15 17:56:50,687 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:56:50,688 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:56:50,690 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 57 transitions. [2022-03-15 17:56:50,691 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:56:50,937 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 17:56:50,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 17:56:50,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:56:50,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 17:56:50,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 17:56:50,938 INFO L87 Difference]: Start difference. First operand 181 states and 411 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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 17:56:50,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:56:50,981 INFO L93 Difference]: Finished difference Result 203 states and 416 transitions. [2022-03-15 17:56:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 17:56:50,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) Word has length 11 [2022-03-15 17:56:50,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:56:50,983 INFO L225 Difference]: With dead ends: 203 [2022-03-15 17:56:50,983 INFO L226 Difference]: Without dead ends: 146 [2022-03-15 17:56:50,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:56:50,984 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 13 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:56:50,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 15 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:56:50,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-03-15 17:56:50,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-03-15 17:56:50,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 2.0068965517241377) internal successors, (291), 145 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:56:50,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 291 transitions. [2022-03-15 17:56:50,988 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 291 transitions. Word has length 11 [2022-03-15 17:56:50,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:56:50,988 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 291 transitions. [2022-03-15 17:56:50,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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 17:56:50,989 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 291 transitions. [2022-03-15 17:56:50,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-03-15 17:56:50,989 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:56:50,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:56:50,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 17:56:50,990 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:56:50,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:56:50,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1932575487, now seen corresponding path program 1 times [2022-03-15 17:56:50,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:56:50,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839473766] [2022-03-15 17:56:50,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:56:50,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:56:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:56:51,069 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 17:56:51,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:56:51,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839473766] [2022-03-15 17:56:51,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839473766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:56:51,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:56:51,069 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 17:56:51,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1036797488] [2022-03-15 17:56:51,070 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:56:51,071 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:56:51,075 INFO L252 McrAutomatonBuilder]: Finished intersection with 43 states and 79 transitions. [2022-03-15 17:56:51,075 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:56:51,319 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4687#(not (= 2 ~__unbuffered_cnt~0))] [2022-03-15 17:56:51,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 17:56:51,319 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:56:51,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 17:56:51,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-15 17:56:51,320 INFO L87 Difference]: Start difference. First operand 146 states and 291 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 17:56:51,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:56:51,390 INFO L93 Difference]: Finished difference Result 127 states and 249 transitions. [2022-03-15 17:56:51,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 17:56:51,391 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 13 [2022-03-15 17:56:51,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:56:51,391 INFO L225 Difference]: With dead ends: 127 [2022-03-15 17:56:51,391 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 17:56:51,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-15 17:56:51,392 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 30 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:56:51,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 15 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:56:51,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 17:56:51,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 17:56:51,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:56:51,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 17:56:51,394 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-03-15 17:56:51,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:56:51,394 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 17:56:51,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 17:56:51,394 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 17:56:51,394 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 17:56:51,396 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-03-15 17:56:51,397 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-15 17:56:51,397 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-15 17:56:51,397 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-15 17:56:51,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 17:56:51,399 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:56:51,401 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 17:56:51,401 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 17:56:51,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 05:56:51 BasicIcfg [2022-03-15 17:56:51,403 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 17:56:51,403 INFO L158 Benchmark]: Toolchain (without parser) took 5623.90ms. Allocated memory was 191.9MB in the beginning and 274.7MB in the end (delta: 82.8MB). Free memory was 134.6MB in the beginning and 230.4MB in the end (delta: -95.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 17:56:51,403 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 191.9MB. Free memory is still 152.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 17:56:51,404 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.02ms. Allocated memory was 191.9MB in the beginning and 274.7MB in the end (delta: 82.8MB). Free memory was 134.3MB in the beginning and 236.2MB in the end (delta: -101.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-15 17:56:51,404 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.06ms. Allocated memory is still 274.7MB. Free memory was 235.8MB in the beginning and 234.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 17:56:51,404 INFO L158 Benchmark]: Boogie Preprocessor took 41.43ms. Allocated memory is still 274.7MB. Free memory was 234.1MB in the beginning and 232.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 17:56:51,405 INFO L158 Benchmark]: RCFGBuilder took 395.11ms. Allocated memory is still 274.7MB. Free memory was 232.6MB in the beginning and 220.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-15 17:56:51,405 INFO L158 Benchmark]: TraceAbstraction took 4663.96ms. Allocated memory is still 274.7MB. Free memory was 219.9MB in the beginning and 230.4MB in the end (delta: -10.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 17:56:51,406 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 191.9MB. Free memory is still 152.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 452.02ms. Allocated memory was 191.9MB in the beginning and 274.7MB in the end (delta: 82.8MB). Free memory was 134.3MB in the beginning and 236.2MB in the end (delta: -101.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 66.06ms. Allocated memory is still 274.7MB. Free memory was 235.8MB in the beginning and 234.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.43ms. Allocated memory is still 274.7MB. Free memory was 234.1MB in the beginning and 232.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 395.11ms. Allocated memory is still 274.7MB. Free memory was 232.6MB in the beginning and 220.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4663.96ms. Allocated memory is still 274.7MB. Free memory was 219.9MB in the beginning and 230.4MB in the end (delta: -10.6MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 98 PlacesBefore, 31 PlacesAfterwards, 90 TransitionsBefore, 21 TransitionsAfterwards, 1620 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 78 TotalNumberOfCompositions, 3129 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1615, positive: 1518, positive conditional: 0, positive unconditional: 1518, negative: 97, negative conditional: 0, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 885, positive: 840, positive conditional: 0, positive unconditional: 840, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1615, positive: 678, positive conditional: 0, positive unconditional: 678, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 885, unknown conditional: 0, unknown unconditional: 885] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 32, Positive conditional cache size: 0, Positive unconditional cache size: 32, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 113 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 185 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 185 mSDsluCounter, 77 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 219 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 372 IncrementalHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 38 mSDtfsCounter, 372 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=249occurred in iteration=1, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 278 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 363 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-15 17:56:51,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...