/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/floating_read-25.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 23:25:33,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 23:25:33,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 23:25:33,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 23:25:33,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 23:25:33,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 23:25:33,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 23:25:33,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 23:25:33,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 23:25:33,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 23:25:33,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 23:25:33,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 23:25:33,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 23:25:33,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 23:25:33,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 23:25:33,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 23:25:33,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 23:25:33,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 23:25:33,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 23:25:33,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 23:25:33,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 23:25:33,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 23:25:33,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 23:25:33,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 23:25:33,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 23:25:33,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 23:25:33,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 23:25:33,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 23:25:33,530 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-10 23:25:33,555 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 23:25:33,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 23:25:33,556 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 23:25:33,556 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 23:25:33,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 23:25:33,557 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 23:25:33,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 23:25:33,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 23:25:33,557 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 23:25:33,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 23:25:33,558 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 23:25:33,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 23:25:33,558 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 23:25:33,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 23:25:33,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 23:25:33,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 23:25:33,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 23:25:33,559 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 23:25:33,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 23:25:33,559 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 23:25:33,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 23:25:33,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 23:25:33,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 23:25:33,560 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 23:25:33,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 23:25:33,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:25:33,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 23:25:33,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 23:25:33,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 23:25:33,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 23:25:33,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 23:25:33,562 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 23:25:33,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 23:25:33,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 23:25:33,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 23:25:33,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 23:25:33,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 23:25:33,755 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 23:25:33,755 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 23:25:33,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/floating_read-25.i [2022-02-10 23:25:33,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d98a7f39/bbfd2b8a78f84bc8afa07f3cbf4bdbb7/FLAGdd79f32e3 [2022-02-10 23:25:34,245 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 23:25:34,246 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/floating_read-25.i [2022-02-10 23:25:34,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d98a7f39/bbfd2b8a78f84bc8afa07f3cbf4bdbb7/FLAGdd79f32e3 [2022-02-10 23:25:34,272 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d98a7f39/bbfd2b8a78f84bc8afa07f3cbf4bdbb7 [2022-02-10 23:25:34,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 23:25:34,281 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 23:25:34,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 23:25:34,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 23:25:34,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 23:25:34,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 11:25:34" (1/1) ... [2022-02-10 23:25:34,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54f66b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:25:34, skipping insertion in model container [2022-02-10 23:25:34,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 11:25:34" (1/1) ... [2022-02-10 23:25:34,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 23:25:34,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 23:25:34,572 WARN L1533 CHandler]: Possible shadowing of function thread [2022-02-10 23:25:34,581 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/floating_read-25.i[31197,31210] [2022-02-10 23:25:34,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 23:25:34,590 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 23:25:34,609 WARN L1533 CHandler]: Possible shadowing of function thread [2022-02-10 23:25:34,611 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/floating_read-25.i[31197,31210] [2022-02-10 23:25:34,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 23:25:34,643 INFO L208 MainTranslator]: Completed translation [2022-02-10 23:25:34,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:25:34 WrapperNode [2022-02-10 23:25:34,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 23:25:34,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 23:25:34,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 23:25:34,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 23:25:34,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:25:34" (1/1) ... [2022-02-10 23:25:34,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:25:34" (1/1) ... [2022-02-10 23:25:34,673 INFO L137 Inliner]: procedures = 162, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2022-02-10 23:25:34,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 23:25:34,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 23:25:34,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 23:25:34,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 23:25:34,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:25:34" (1/1) ... [2022-02-10 23:25:34,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:25:34" (1/1) ... [2022-02-10 23:25:34,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:25:34" (1/1) ... [2022-02-10 23:25:34,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:25:34" (1/1) ... [2022-02-10 23:25:34,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:25:34" (1/1) ... [2022-02-10 23:25:34,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:25:34" (1/1) ... [2022-02-10 23:25:34,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:25:34" (1/1) ... [2022-02-10 23:25:34,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 23:25:34,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 23:25:34,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 23:25:34,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 23:25:34,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:25:34" (1/1) ... [2022-02-10 23:25:34,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:25:34,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:25:34,721 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) [2022-02-10 23:25:34,733 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 [2022-02-10 23:25:34,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 23:25:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 23:25:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-10 23:25:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 23:25:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 23:25:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 23:25:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 23:25:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-02-10 23:25:34,752 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-02-10 23:25:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-10 23:25:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 23:25:34,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 23:25:34,753 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 23:25:34,838 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 23:25:34,839 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 23:25:34,925 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 23:25:34,929 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 23:25:34,929 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-10 23:25:34,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:25:34 BoogieIcfgContainer [2022-02-10 23:25:34,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 23:25:34,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 23:25:34,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 23:25:34,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 23:25:34,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 11:25:34" (1/3) ... [2022-02-10 23:25:34,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa642d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:25:34, skipping insertion in model container [2022-02-10 23:25:34,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:25:34" (2/3) ... [2022-02-10 23:25:34,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa642d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:25:34, skipping insertion in model container [2022-02-10 23:25:34,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:25:34" (3/3) ... [2022-02-10 23:25:34,935 INFO L112 eAbstractionObserver]: Analyzing ICFG floating_read-25.i [2022-02-10 23:25:34,939 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 23:25:34,939 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 23:25:34,939 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 23:25:34,939 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 23:25:34,958 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,958 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,958 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,958 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,958 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,959 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,959 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,959 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,959 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,959 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,959 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,959 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,959 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,960 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,960 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,960 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,960 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,960 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,960 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,960 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,962 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,963 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,963 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,963 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,963 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:34,965 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-10 23:25:34,992 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:25:34,997 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 23:25:34,997 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 23:25:35,003 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 59 transitions, 126 flow [2022-02-10 23:25:35,034 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 112 states, 109 states have (on average 1.6788990825688073) internal successors, (183), 111 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,036 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 109 states have (on average 1.6788990825688073) internal successors, (183), 111 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-02-10 23:25:35,040 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:35,040 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:35,041 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:35,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:35,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1781753840, now seen corresponding path program 1 times [2022-02-10 23:25:35,049 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:35,049 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086058993] [2022-02-10 23:25:35,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:35,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:35,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:35,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:35,193 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:35,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086058993] [2022-02-10 23:25:35,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086058993] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:35,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:35,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 23:25:35,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771490292] [2022-02-10 23:25:35,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:35,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 23:25:35,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:35,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 23:25:35,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:25:35,228 INFO L87 Difference]: Start difference. First operand has 112 states, 109 states have (on average 1.6788990825688073) internal successors, (183), 111 states have internal predecessors, (183), 0 states have call successors, (0), 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 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:35,248 INFO L93 Difference]: Finished difference Result 112 states and 176 transitions. [2022-02-10 23:25:35,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 23:25:35,249 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-02-10 23:25:35,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:35,256 INFO L225 Difference]: With dead ends: 112 [2022-02-10 23:25:35,256 INFO L226 Difference]: Without dead ends: 112 [2022-02-10 23:25:35,257 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:25:35,264 INFO L934 BasicCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:35,265 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:25:35,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-02-10 23:25:35,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-02-10 23:25:35,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 109 states have (on average 1.614678899082569) internal successors, (176), 111 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 176 transitions. [2022-02-10 23:25:35,340 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 176 transitions. Word has length 23 [2022-02-10 23:25:35,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:35,341 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 176 transitions. [2022-02-10 23:25:35,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,341 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 176 transitions. [2022-02-10 23:25:35,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-02-10 23:25:35,342 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:35,342 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:35,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 23:25:35,343 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:35,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:35,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1781754801, now seen corresponding path program 1 times [2022-02-10 23:25:35,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:35,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683047440] [2022-02-10 23:25:35,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:35,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:35,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:35,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:35,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683047440] [2022-02-10 23:25:35,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683047440] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:35,432 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:35,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:25:35,432 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097075942] [2022-02-10 23:25:35,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:35,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:25:35,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:35,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:25:35,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:25:35,433 INFO L87 Difference]: Start difference. First operand 112 states and 176 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:35,459 INFO L93 Difference]: Finished difference Result 109 states and 173 transitions. [2022-02-10 23:25:35,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:25:35,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-02-10 23:25:35,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:35,460 INFO L225 Difference]: With dead ends: 109 [2022-02-10 23:25:35,460 INFO L226 Difference]: Without dead ends: 109 [2022-02-10 23:25:35,461 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:25:35,462 INFO L934 BasicCegarLoop]: 35 mSDtfsCounter, 13 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:35,462 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 64 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:25:35,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-02-10 23:25:35,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2022-02-10 23:25:35,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 107 states have (on average 1.6168224299065421) internal successors, (173), 108 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 173 transitions. [2022-02-10 23:25:35,467 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 173 transitions. Word has length 23 [2022-02-10 23:25:35,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:35,468 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 173 transitions. [2022-02-10 23:25:35,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,468 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 173 transitions. [2022-02-10 23:25:35,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-02-10 23:25:35,468 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:35,468 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:35,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 23:25:35,469 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:35,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:35,469 INFO L85 PathProgramCache]: Analyzing trace with hash -315270955, now seen corresponding path program 1 times [2022-02-10 23:25:35,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:35,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724810187] [2022-02-10 23:25:35,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:35,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:35,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 23:25:35,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:35,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724810187] [2022-02-10 23:25:35,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724810187] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:35,550 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:35,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:25:35,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325747344] [2022-02-10 23:25:35,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:35,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:25:35,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:35,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:25:35,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:25:35,553 INFO L87 Difference]: Start difference. First operand 109 states and 173 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:35,568 INFO L93 Difference]: Finished difference Result 103 states and 161 transitions. [2022-02-10 23:25:35,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:25:35,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-02-10 23:25:35,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:35,572 INFO L225 Difference]: With dead ends: 103 [2022-02-10 23:25:35,572 INFO L226 Difference]: Without dead ends: 103 [2022-02-10 23:25:35,573 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:25:35,576 INFO L934 BasicCegarLoop]: 38 mSDtfsCounter, 11 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:35,576 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 61 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:25:35,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-02-10 23:25:35,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-02-10 23:25:35,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 101 states have (on average 1.5940594059405941) internal successors, (161), 102 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 161 transitions. [2022-02-10 23:25:35,581 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 161 transitions. Word has length 33 [2022-02-10 23:25:35,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:35,581 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 161 transitions. [2022-02-10 23:25:35,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,582 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 161 transitions. [2022-02-10 23:25:35,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-02-10 23:25:35,582 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:35,582 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:35,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 23:25:35,583 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:35,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:35,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1968634815, now seen corresponding path program 1 times [2022-02-10 23:25:35,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:35,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323269575] [2022-02-10 23:25:35,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:35,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:25:35,622 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 23:25:35,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:25:35,659 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 23:25:35,660 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 23:25:35,661 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-10 23:25:35,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-10 23:25:35,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 23:25:35,667 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-10 23:25:35,668 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-10 23:25:35,668 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-02-10 23:25:35,682 WARN L322 ript$VariableManager]: TermVariable |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,682 WARN L322 ript$VariableManager]: TermVariable |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,682 WARN L322 ript$VariableManager]: TermVariable threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,682 WARN L322 ript$VariableManager]: TermVariable threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,682 WARN L322 ript$VariableManager]: TermVariable |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,682 WARN L322 ript$VariableManager]: TermVariable |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,682 WARN L322 ript$VariableManager]: TermVariable threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,682 WARN L322 ript$VariableManager]: TermVariable threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,682 WARN L322 ript$VariableManager]: TermVariable threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,683 WARN L322 ript$VariableManager]: TermVariable threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,683 WARN L322 ript$VariableManager]: TermVariable threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,683 WARN L322 ript$VariableManager]: TermVariable threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,683 WARN L322 ript$VariableManager]: TermVariable threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,683 WARN L322 ript$VariableManager]: TermVariable threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,683 WARN L322 ript$VariableManager]: TermVariable threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,683 WARN L322 ript$VariableManager]: TermVariable threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,683 WARN L322 ript$VariableManager]: TermVariable |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,683 WARN L322 ript$VariableManager]: TermVariable |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,683 WARN L322 ript$VariableManager]: TermVariable |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,683 WARN L322 ript$VariableManager]: TermVariable |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,684 WARN L322 ript$VariableManager]: TermVariable |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,684 WARN L322 ript$VariableManager]: TermVariable |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,684 WARN L322 ript$VariableManager]: TermVariable threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,684 WARN L322 ript$VariableManager]: TermVariable threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,684 WARN L322 ript$VariableManager]: TermVariable |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,684 WARN L322 ript$VariableManager]: TermVariable |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,684 WARN L322 ript$VariableManager]: TermVariable threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,684 WARN L322 ript$VariableManager]: TermVariable threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,684 WARN L322 ript$VariableManager]: TermVariable threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,684 WARN L322 ript$VariableManager]: TermVariable threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,684 WARN L322 ript$VariableManager]: TermVariable threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,685 WARN L322 ript$VariableManager]: TermVariable threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,687 WARN L322 ript$VariableManager]: TermVariable threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,688 WARN L322 ript$VariableManager]: TermVariable threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,688 WARN L322 ript$VariableManager]: TermVariable threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,688 WARN L322 ript$VariableManager]: TermVariable threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,688 WARN L322 ript$VariableManager]: TermVariable |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,688 WARN L322 ript$VariableManager]: TermVariable |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,688 WARN L322 ript$VariableManager]: TermVariable |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,688 WARN L322 ript$VariableManager]: TermVariable |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,689 WARN L322 ript$VariableManager]: TermVariable threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,689 WARN L322 ript$VariableManager]: TermVariable |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,689 WARN L322 ript$VariableManager]: TermVariable |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,689 WARN L322 ript$VariableManager]: TermVariable threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,690 WARN L322 ript$VariableManager]: TermVariable threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,690 WARN L322 ript$VariableManager]: TermVariable threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,690 WARN L322 ript$VariableManager]: TermVariable |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,690 WARN L322 ript$VariableManager]: TermVariable threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,690 WARN L322 ript$VariableManager]: TermVariable threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,690 WARN L322 ript$VariableManager]: TermVariable |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:35,693 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-10 23:25:35,696 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:25:35,701 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 23:25:35,701 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 23:25:35,703 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 66 transitions, 150 flow [2022-02-10 23:25:35,746 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 610 states, 606 states have (on average 2.5115511551155114) internal successors, (1522), 609 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,747 INFO L276 IsEmpty]: Start isEmpty. Operand has 610 states, 606 states have (on average 2.5115511551155114) internal successors, (1522), 609 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-02-10 23:25:35,747 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:35,747 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:35,747 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:35,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:35,748 INFO L85 PathProgramCache]: Analyzing trace with hash 775345522, now seen corresponding path program 1 times [2022-02-10 23:25:35,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:35,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939894221] [2022-02-10 23:25:35,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:35,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:35,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:35,782 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:35,782 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939894221] [2022-02-10 23:25:35,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939894221] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:35,782 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:35,782 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 23:25:35,782 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480271835] [2022-02-10 23:25:35,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:35,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 23:25:35,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:35,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 23:25:35,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:25:35,785 INFO L87 Difference]: Start difference. First operand has 610 states, 606 states have (on average 2.5115511551155114) internal successors, (1522), 609 states have internal predecessors, (1522), 0 states have call successors, (0), 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 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:35,798 INFO L93 Difference]: Finished difference Result 610 states and 1479 transitions. [2022-02-10 23:25:35,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 23:25:35,799 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-02-10 23:25:35,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:35,802 INFO L225 Difference]: With dead ends: 610 [2022-02-10 23:25:35,802 INFO L226 Difference]: Without dead ends: 610 [2022-02-10 23:25:35,802 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:25:35,804 INFO L934 BasicCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:35,805 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:25:35,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-02-10 23:25:35,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 610. [2022-02-10 23:25:35,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 606 states have (on average 2.4405940594059405) internal successors, (1479), 609 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 1479 transitions. [2022-02-10 23:25:35,837 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 1479 transitions. Word has length 23 [2022-02-10 23:25:35,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:35,837 INFO L470 AbstractCegarLoop]: Abstraction has 610 states and 1479 transitions. [2022-02-10 23:25:35,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,838 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 1479 transitions. [2022-02-10 23:25:35,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-02-10 23:25:35,841 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:35,841 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:35,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 23:25:35,841 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:35,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:35,841 INFO L85 PathProgramCache]: Analyzing trace with hash 775346483, now seen corresponding path program 1 times [2022-02-10 23:25:35,842 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:35,842 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675974730] [2022-02-10 23:25:35,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:35,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:35,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:35,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:35,879 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:35,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675974730] [2022-02-10 23:25:35,879 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675974730] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:35,879 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:35,879 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:25:35,879 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235753194] [2022-02-10 23:25:35,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:35,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:25:35,880 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:35,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:25:35,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:25:35,880 INFO L87 Difference]: Start difference. First operand 610 states and 1479 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:35,898 INFO L93 Difference]: Finished difference Result 607 states and 1476 transitions. [2022-02-10 23:25:35,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:25:35,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-02-10 23:25:35,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:35,901 INFO L225 Difference]: With dead ends: 607 [2022-02-10 23:25:35,901 INFO L226 Difference]: Without dead ends: 607 [2022-02-10 23:25:35,901 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:25:35,902 INFO L934 BasicCegarLoop]: 40 mSDtfsCounter, 13 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:35,902 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 76 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:25:35,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-02-10 23:25:35,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 607. [2022-02-10 23:25:35,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 604 states have (on average 2.443708609271523) internal successors, (1476), 606 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 1476 transitions. [2022-02-10 23:25:35,919 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 1476 transitions. Word has length 23 [2022-02-10 23:25:35,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:35,919 INFO L470 AbstractCegarLoop]: Abstraction has 607 states and 1476 transitions. [2022-02-10 23:25:35,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,919 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 1476 transitions. [2022-02-10 23:25:35,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-02-10 23:25:35,922 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:35,922 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:35,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-10 23:25:35,922 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:35,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:35,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1083506660, now seen corresponding path program 1 times [2022-02-10 23:25:35,922 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:35,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962067961] [2022-02-10 23:25:35,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:35,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:35,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 23:25:35,976 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:35,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962067961] [2022-02-10 23:25:35,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962067961] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:35,977 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:35,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:25:35,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875884321] [2022-02-10 23:25:35,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:35,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:25:35,977 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:35,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:25:35,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:25:35,978 INFO L87 Difference]: Start difference. First operand 607 states and 1476 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:35,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:35,996 INFO L93 Difference]: Finished difference Result 583 states and 1410 transitions. [2022-02-10 23:25:35,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:25:35,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-02-10 23:25:35,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:36,000 INFO L225 Difference]: With dead ends: 583 [2022-02-10 23:25:36,000 INFO L226 Difference]: Without dead ends: 583 [2022-02-10 23:25:36,001 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:25:36,001 INFO L934 BasicCegarLoop]: 43 mSDtfsCounter, 14 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:36,002 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 72 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:25:36,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2022-02-10 23:25:36,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 583. [2022-02-10 23:25:36,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 580 states have (on average 2.4310344827586206) internal successors, (1410), 582 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:36,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 1410 transitions. [2022-02-10 23:25:36,015 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 1410 transitions. Word has length 33 [2022-02-10 23:25:36,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:36,015 INFO L470 AbstractCegarLoop]: Abstraction has 583 states and 1410 transitions. [2022-02-10 23:25:36,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:36,015 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 1410 transitions. [2022-02-10 23:25:36,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-10 23:25:36,017 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:36,017 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:36,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 23:25:36,017 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:36,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:36,018 INFO L85 PathProgramCache]: Analyzing trace with hash -2017126046, now seen corresponding path program 1 times [2022-02-10 23:25:36,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:36,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606394556] [2022-02-10 23:25:36,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:36,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:36,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:36,070 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:36,070 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606394556] [2022-02-10 23:25:36,070 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606394556] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:25:36,070 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480768901] [2022-02-10 23:25:36,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:36,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:36,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:25:36,082 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:25:36,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 23:25:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:36,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 23:25:36,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:25:36,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:36,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:25:36,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:36,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480768901] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:25:36,293 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:25:36,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-10 23:25:36,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495268891] [2022-02-10 23:25:36,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:25:36,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 23:25:36,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:36,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 23:25:36,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-10 23:25:36,294 INFO L87 Difference]: Start difference. First operand 583 states and 1410 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:36,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:36,340 INFO L93 Difference]: Finished difference Result 481 states and 1155 transitions. [2022-02-10 23:25:36,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 23:25:36,341 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 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 36 [2022-02-10 23:25:36,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:36,342 INFO L225 Difference]: With dead ends: 481 [2022-02-10 23:25:36,342 INFO L226 Difference]: Without dead ends: 481 [2022-02-10 23:25:36,343 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-02-10 23:25:36,343 INFO L934 BasicCegarLoop]: 46 mSDtfsCounter, 131 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:36,343 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 214 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:25:36,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-02-10 23:25:36,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2022-02-10 23:25:36,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 2.40625) internal successors, (1155), 480 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:36,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 1155 transitions. [2022-02-10 23:25:36,353 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 1155 transitions. Word has length 36 [2022-02-10 23:25:36,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:36,353 INFO L470 AbstractCegarLoop]: Abstraction has 481 states and 1155 transitions. [2022-02-10 23:25:36,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:36,353 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 1155 transitions. [2022-02-10 23:25:36,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-02-10 23:25:36,354 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:36,354 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:36,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-10 23:25:36,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:36,587 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:36,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:36,587 INFO L85 PathProgramCache]: Analyzing trace with hash 286308789, now seen corresponding path program 1 times [2022-02-10 23:25:36,587 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:36,587 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463885203] [2022-02-10 23:25:36,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:36,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:25:36,598 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 23:25:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:25:36,611 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 23:25:36,611 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 23:25:36,612 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-10 23:25:36,612 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-10 23:25:36,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-10 23:25:36,612 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-02-10 23:25:36,612 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-10 23:25:36,612 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-02-10 23:25:36,623 WARN L322 ript$VariableManager]: TermVariable |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,623 WARN L322 ript$VariableManager]: TermVariable |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,623 WARN L322 ript$VariableManager]: TermVariable threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,624 WARN L322 ript$VariableManager]: TermVariable threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,624 WARN L322 ript$VariableManager]: TermVariable |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,624 WARN L322 ript$VariableManager]: TermVariable |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,624 WARN L322 ript$VariableManager]: TermVariable threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,624 WARN L322 ript$VariableManager]: TermVariable threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,624 WARN L322 ript$VariableManager]: TermVariable threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,624 WARN L322 ript$VariableManager]: TermVariable threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,624 WARN L322 ript$VariableManager]: TermVariable threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,624 WARN L322 ript$VariableManager]: TermVariable threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,624 WARN L322 ript$VariableManager]: TermVariable threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,625 WARN L322 ript$VariableManager]: TermVariable threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,625 WARN L322 ript$VariableManager]: TermVariable threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,625 WARN L322 ript$VariableManager]: TermVariable threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,625 WARN L322 ript$VariableManager]: TermVariable |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,625 WARN L322 ript$VariableManager]: TermVariable |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,625 WARN L322 ript$VariableManager]: TermVariable |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,625 WARN L322 ript$VariableManager]: TermVariable |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,625 WARN L322 ript$VariableManager]: TermVariable |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,625 WARN L322 ript$VariableManager]: TermVariable |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,625 WARN L322 ript$VariableManager]: TermVariable threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,625 WARN L322 ript$VariableManager]: TermVariable threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,625 WARN L322 ript$VariableManager]: TermVariable |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,625 WARN L322 ript$VariableManager]: TermVariable |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,626 WARN L322 ript$VariableManager]: TermVariable threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,626 WARN L322 ript$VariableManager]: TermVariable threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,626 WARN L322 ript$VariableManager]: TermVariable threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,626 WARN L322 ript$VariableManager]: TermVariable threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,626 WARN L322 ript$VariableManager]: TermVariable threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,626 WARN L322 ript$VariableManager]: TermVariable threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,626 WARN L322 ript$VariableManager]: TermVariable threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,626 WARN L322 ript$VariableManager]: TermVariable threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,627 WARN L322 ript$VariableManager]: TermVariable threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,627 WARN L322 ript$VariableManager]: TermVariable threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,627 WARN L322 ript$VariableManager]: TermVariable |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,627 WARN L322 ript$VariableManager]: TermVariable |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,627 WARN L322 ript$VariableManager]: TermVariable |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,627 WARN L322 ript$VariableManager]: TermVariable |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,627 WARN L322 ript$VariableManager]: TermVariable |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,627 WARN L322 ript$VariableManager]: TermVariable |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,627 WARN L322 ript$VariableManager]: TermVariable threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,627 WARN L322 ript$VariableManager]: TermVariable threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,627 WARN L322 ript$VariableManager]: TermVariable |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,627 WARN L322 ript$VariableManager]: TermVariable |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,627 WARN L322 ript$VariableManager]: TermVariable threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,627 WARN L322 ript$VariableManager]: TermVariable threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,628 WARN L322 ript$VariableManager]: TermVariable threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,628 WARN L322 ript$VariableManager]: TermVariable threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,628 WARN L322 ript$VariableManager]: TermVariable threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,628 WARN L322 ript$VariableManager]: TermVariable threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,628 WARN L322 ript$VariableManager]: TermVariable threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,628 WARN L322 ript$VariableManager]: TermVariable threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,628 WARN L322 ript$VariableManager]: TermVariable threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,628 WARN L322 ript$VariableManager]: TermVariable threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,629 WARN L322 ript$VariableManager]: TermVariable |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,629 WARN L322 ript$VariableManager]: TermVariable |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,629 WARN L322 ript$VariableManager]: TermVariable |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,629 WARN L322 ript$VariableManager]: TermVariable |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,629 WARN L322 ript$VariableManager]: TermVariable |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,629 WARN L322 ript$VariableManager]: TermVariable |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,629 WARN L322 ript$VariableManager]: TermVariable threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,629 WARN L322 ript$VariableManager]: TermVariable threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,629 WARN L322 ript$VariableManager]: TermVariable threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,630 WARN L322 ript$VariableManager]: TermVariable threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,630 WARN L322 ript$VariableManager]: TermVariable |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,630 WARN L322 ript$VariableManager]: TermVariable |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,630 WARN L322 ript$VariableManager]: TermVariable threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,630 WARN L322 ript$VariableManager]: TermVariable threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,632 WARN L322 ript$VariableManager]: TermVariable threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,632 WARN L322 ript$VariableManager]: TermVariable |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,632 WARN L322 ript$VariableManager]: TermVariable threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,632 WARN L322 ript$VariableManager]: TermVariable |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,632 WARN L322 ript$VariableManager]: TermVariable threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:36,635 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-10 23:25:36,636 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:25:36,636 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 23:25:36,636 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 23:25:36,638 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 73 transitions, 176 flow [2022-02-10 23:25:36,737 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3598 states, 3593 states have (on average 3.352630114110771) internal successors, (12046), 3597 states have internal predecessors, (12046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:36,747 INFO L276 IsEmpty]: Start isEmpty. Operand has 3598 states, 3593 states have (on average 3.352630114110771) internal successors, (12046), 3597 states have internal predecessors, (12046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:36,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-02-10 23:25:36,748 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:36,748 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:36,749 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:36,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:36,749 INFO L85 PathProgramCache]: Analyzing trace with hash 898626907, now seen corresponding path program 1 times [2022-02-10 23:25:36,749 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:36,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897265676] [2022-02-10 23:25:36,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:36,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:36,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:36,765 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:36,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897265676] [2022-02-10 23:25:36,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897265676] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:36,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:36,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 23:25:36,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952259500] [2022-02-10 23:25:36,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:36,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 23:25:36,766 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:36,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 23:25:36,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:25:36,786 INFO L87 Difference]: Start difference. First operand has 3598 states, 3593 states have (on average 3.352630114110771) internal successors, (12046), 3597 states have internal predecessors, (12046), 0 states have call successors, (0), 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 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:36,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:36,865 INFO L93 Difference]: Finished difference Result 3598 states and 11787 transitions. [2022-02-10 23:25:36,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 23:25:36,865 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-02-10 23:25:36,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:36,889 INFO L225 Difference]: With dead ends: 3598 [2022-02-10 23:25:36,890 INFO L226 Difference]: Without dead ends: 3598 [2022-02-10 23:25:36,890 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:25:36,890 INFO L934 BasicCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:36,890 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:25:36,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3598 states. [2022-02-10 23:25:36,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3598 to 3598. [2022-02-10 23:25:36,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3598 states, 3593 states have (on average 3.2805455051489005) internal successors, (11787), 3597 states have internal predecessors, (11787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:36,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3598 states to 3598 states and 11787 transitions. [2022-02-10 23:25:36,988 INFO L78 Accepts]: Start accepts. Automaton has 3598 states and 11787 transitions. Word has length 23 [2022-02-10 23:25:36,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:36,989 INFO L470 AbstractCegarLoop]: Abstraction has 3598 states and 11787 transitions. [2022-02-10 23:25:36,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:36,989 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 11787 transitions. [2022-02-10 23:25:36,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-02-10 23:25:36,989 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:36,989 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:36,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-10 23:25:36,989 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:36,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:36,990 INFO L85 PathProgramCache]: Analyzing trace with hash 898627868, now seen corresponding path program 1 times [2022-02-10 23:25:36,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:36,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001598075] [2022-02-10 23:25:36,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:36,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:37,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:37,003 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:37,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001598075] [2022-02-10 23:25:37,003 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001598075] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:37,003 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:37,003 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:25:37,003 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534317892] [2022-02-10 23:25:37,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:37,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:25:37,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:37,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:25:37,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:25:37,004 INFO L87 Difference]: Start difference. First operand 3598 states and 11787 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:37,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:37,036 INFO L93 Difference]: Finished difference Result 3595 states and 11784 transitions. [2022-02-10 23:25:37,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:25:37,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-02-10 23:25:37,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:37,053 INFO L225 Difference]: With dead ends: 3595 [2022-02-10 23:25:37,054 INFO L226 Difference]: Without dead ends: 3595 [2022-02-10 23:25:37,054 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:25:37,054 INFO L934 BasicCegarLoop]: 45 mSDtfsCounter, 13 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:37,054 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 86 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:25:37,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3595 states. [2022-02-10 23:25:37,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3595 to 3595. [2022-02-10 23:25:37,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3595 states, 3591 states have (on average 3.281537176274018) internal successors, (11784), 3594 states have internal predecessors, (11784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:37,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3595 states to 3595 states and 11784 transitions. [2022-02-10 23:25:37,189 INFO L78 Accepts]: Start accepts. Automaton has 3595 states and 11784 transitions. Word has length 23 [2022-02-10 23:25:37,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:37,190 INFO L470 AbstractCegarLoop]: Abstraction has 3595 states and 11784 transitions. [2022-02-10 23:25:37,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:37,190 INFO L276 IsEmpty]: Start isEmpty. Operand 3595 states and 11784 transitions. [2022-02-10 23:25:37,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-02-10 23:25:37,190 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:37,190 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:37,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-10 23:25:37,190 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:37,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:37,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1823512938, now seen corresponding path program 1 times [2022-02-10 23:25:37,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:37,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315391448] [2022-02-10 23:25:37,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:37,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:37,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 23:25:37,236 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:37,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315391448] [2022-02-10 23:25:37,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315391448] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:37,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:37,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:25:37,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699306818] [2022-02-10 23:25:37,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:37,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:25:37,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:37,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:25:37,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:25:37,237 INFO L87 Difference]: Start difference. First operand 3595 states and 11784 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:37,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:37,264 INFO L93 Difference]: Finished difference Result 3517 states and 11502 transitions. [2022-02-10 23:25:37,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:25:37,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-02-10 23:25:37,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:37,280 INFO L225 Difference]: With dead ends: 3517 [2022-02-10 23:25:37,280 INFO L226 Difference]: Without dead ends: 3517 [2022-02-10 23:25:37,280 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:25:37,280 INFO L934 BasicCegarLoop]: 48 mSDtfsCounter, 17 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:37,281 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 81 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:25:37,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3517 states. [2022-02-10 23:25:37,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3517 to 3517. [2022-02-10 23:25:37,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3517 states, 3513 states have (on average 3.274124679760888) internal successors, (11502), 3516 states have internal predecessors, (11502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:37,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3517 states to 3517 states and 11502 transitions. [2022-02-10 23:25:37,383 INFO L78 Accepts]: Start accepts. Automaton has 3517 states and 11502 transitions. Word has length 33 [2022-02-10 23:25:37,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:37,384 INFO L470 AbstractCegarLoop]: Abstraction has 3517 states and 11502 transitions. [2022-02-10 23:25:37,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:37,384 INFO L276 IsEmpty]: Start isEmpty. Operand 3517 states and 11502 transitions. [2022-02-10 23:25:37,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-10 23:25:37,384 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:37,384 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:37,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-10 23:25:37,384 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:37,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:37,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1943735733, now seen corresponding path program 1 times [2022-02-10 23:25:37,385 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:37,385 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659483292] [2022-02-10 23:25:37,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:37,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:37,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:37,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:37,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659483292] [2022-02-10 23:25:37,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659483292] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:25:37,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622553091] [2022-02-10 23:25:37,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:37,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:37,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:25:37,422 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:25:37,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 23:25:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:37,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 23:25:37,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:25:37,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:37,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:25:37,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:37,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622553091] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:25:37,680 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:25:37,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2022-02-10 23:25:37,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889217403] [2022-02-10 23:25:37,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:25:37,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-10 23:25:37,681 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:37,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-10 23:25:37,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-02-10 23:25:37,681 INFO L87 Difference]: Start difference. First operand 3517 states and 11502 transitions. Second operand has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:38,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:38,126 INFO L93 Difference]: Finished difference Result 4684 states and 14991 transitions. [2022-02-10 23:25:38,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-10 23:25:38,127 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 0 states have call successors, (0), 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 36 [2022-02-10 23:25:38,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:38,144 INFO L225 Difference]: With dead ends: 4684 [2022-02-10 23:25:38,145 INFO L226 Difference]: Without dead ends: 4648 [2022-02-10 23:25:38,145 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=492, Invalid=1230, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 23:25:38,145 INFO L934 BasicCegarLoop]: 88 mSDtfsCounter, 563 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:38,146 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [563 Valid, 693 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 23:25:38,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4648 states. [2022-02-10 23:25:38,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4648 to 4063. [2022-02-10 23:25:38,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4063 states, 4060 states have (on average 3.246059113300493) internal successors, (13179), 4062 states have internal predecessors, (13179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:38,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4063 states to 4063 states and 13179 transitions. [2022-02-10 23:25:38,250 INFO L78 Accepts]: Start accepts. Automaton has 4063 states and 13179 transitions. Word has length 36 [2022-02-10 23:25:38,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:38,251 INFO L470 AbstractCegarLoop]: Abstraction has 4063 states and 13179 transitions. [2022-02-10 23:25:38,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:38,251 INFO L276 IsEmpty]: Start isEmpty. Operand 4063 states and 13179 transitions. [2022-02-10 23:25:38,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-02-10 23:25:38,252 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:38,252 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:38,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 23:25:38,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-10 23:25:38,469 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:38,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:38,469 INFO L85 PathProgramCache]: Analyzing trace with hash -569723489, now seen corresponding path program 1 times [2022-02-10 23:25:38,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:38,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366385458] [2022-02-10 23:25:38,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:38,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:38,510 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:38,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:38,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366385458] [2022-02-10 23:25:38,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366385458] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:25:38,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122744036] [2022-02-10 23:25:38,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:38,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:38,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:25:38,512 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:25:38,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 23:25:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:38,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-10 23:25:38,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:25:38,631 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:38,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:25:38,732 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:38,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122744036] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:25:38,732 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:25:38,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-02-10 23:25:38,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876330907] [2022-02-10 23:25:38,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:25:38,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 23:25:38,733 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:38,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 23:25:38,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-02-10 23:25:38,733 INFO L87 Difference]: Start difference. First operand 4063 states and 13179 transitions. Second operand has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:38,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:38,808 INFO L93 Difference]: Finished difference Result 3397 states and 10971 transitions. [2022-02-10 23:25:38,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-10 23:25:38,808 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 0 states have call successors, (0), 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 46 [2022-02-10 23:25:38,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:38,818 INFO L225 Difference]: With dead ends: 3397 [2022-02-10 23:25:38,818 INFO L226 Difference]: Without dead ends: 3397 [2022-02-10 23:25:38,818 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2022-02-10 23:25:38,818 INFO L934 BasicCegarLoop]: 56 mSDtfsCounter, 249 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:38,819 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 336 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:25:38,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3397 states. [2022-02-10 23:25:38,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3397 to 2821. [2022-02-10 23:25:38,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2821 states, 2820 states have (on average 3.2606382978723403) internal successors, (9195), 2820 states have internal predecessors, (9195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:38,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2821 states to 2821 states and 9195 transitions. [2022-02-10 23:25:38,881 INFO L78 Accepts]: Start accepts. Automaton has 2821 states and 9195 transitions. Word has length 46 [2022-02-10 23:25:38,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:38,881 INFO L470 AbstractCegarLoop]: Abstraction has 2821 states and 9195 transitions. [2022-02-10 23:25:38,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:38,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2821 states and 9195 transitions. [2022-02-10 23:25:38,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-02-10 23:25:38,908 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:38,908 INFO L515 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:38,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-10 23:25:39,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:39,124 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:39,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:39,124 INFO L85 PathProgramCache]: Analyzing trace with hash 176735389, now seen corresponding path program 1 times [2022-02-10 23:25:39,124 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:39,124 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015125513] [2022-02-10 23:25:39,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:39,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:25:39,138 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 23:25:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:25:39,148 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 23:25:39,148 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 23:25:39,148 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-10 23:25:39,148 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-10 23:25:39,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-10 23:25:39,149 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-02-10 23:25:39,149 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-10 23:25:39,149 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-02-10 23:25:39,154 WARN L322 ript$VariableManager]: TermVariable |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,155 WARN L322 ript$VariableManager]: TermVariable |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,155 WARN L322 ript$VariableManager]: TermVariable threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,155 WARN L322 ript$VariableManager]: TermVariable threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,155 WARN L322 ript$VariableManager]: TermVariable |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,155 WARN L322 ript$VariableManager]: TermVariable |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,155 WARN L322 ript$VariableManager]: TermVariable threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,155 WARN L322 ript$VariableManager]: TermVariable threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,155 WARN L322 ript$VariableManager]: TermVariable threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,155 WARN L322 ript$VariableManager]: TermVariable threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,155 WARN L322 ript$VariableManager]: TermVariable threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,155 WARN L322 ript$VariableManager]: TermVariable threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,155 WARN L322 ript$VariableManager]: TermVariable threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,155 WARN L322 ript$VariableManager]: TermVariable threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,155 WARN L322 ript$VariableManager]: TermVariable threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,155 WARN L322 ript$VariableManager]: TermVariable threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,155 WARN L322 ript$VariableManager]: TermVariable |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,155 WARN L322 ript$VariableManager]: TermVariable |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,156 WARN L322 ript$VariableManager]: TermVariable |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,156 WARN L322 ript$VariableManager]: TermVariable |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,156 WARN L322 ript$VariableManager]: TermVariable |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,156 WARN L322 ript$VariableManager]: TermVariable |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,156 WARN L322 ript$VariableManager]: TermVariable threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,156 WARN L322 ript$VariableManager]: TermVariable threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,156 WARN L322 ript$VariableManager]: TermVariable |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,156 WARN L322 ript$VariableManager]: TermVariable |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,156 WARN L322 ript$VariableManager]: TermVariable threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,156 WARN L322 ript$VariableManager]: TermVariable threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,156 WARN L322 ript$VariableManager]: TermVariable threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,156 WARN L322 ript$VariableManager]: TermVariable threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,156 WARN L322 ript$VariableManager]: TermVariable threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,156 WARN L322 ript$VariableManager]: TermVariable threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,156 WARN L322 ript$VariableManager]: TermVariable threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,156 WARN L322 ript$VariableManager]: TermVariable threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,156 WARN L322 ript$VariableManager]: TermVariable threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,157 WARN L322 ript$VariableManager]: TermVariable threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,157 WARN L322 ript$VariableManager]: TermVariable |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,157 WARN L322 ript$VariableManager]: TermVariable |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,157 WARN L322 ript$VariableManager]: TermVariable |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,157 WARN L322 ript$VariableManager]: TermVariable |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,157 WARN L322 ript$VariableManager]: TermVariable |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,157 WARN L322 ript$VariableManager]: TermVariable |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,157 WARN L322 ript$VariableManager]: TermVariable threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,157 WARN L322 ript$VariableManager]: TermVariable threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,157 WARN L322 ript$VariableManager]: TermVariable |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,157 WARN L322 ript$VariableManager]: TermVariable |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,157 WARN L322 ript$VariableManager]: TermVariable threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,157 WARN L322 ript$VariableManager]: TermVariable threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,157 WARN L322 ript$VariableManager]: TermVariable threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,157 WARN L322 ript$VariableManager]: TermVariable threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,157 WARN L322 ript$VariableManager]: TermVariable threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,157 WARN L322 ript$VariableManager]: TermVariable threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,157 WARN L322 ript$VariableManager]: TermVariable threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,158 WARN L322 ript$VariableManager]: TermVariable threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,158 WARN L322 ript$VariableManager]: TermVariable threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,158 WARN L322 ript$VariableManager]: TermVariable threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,158 WARN L322 ript$VariableManager]: TermVariable |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,158 WARN L322 ript$VariableManager]: TermVariable |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,158 WARN L322 ript$VariableManager]: TermVariable |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,158 WARN L322 ript$VariableManager]: TermVariable |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,158 WARN L322 ript$VariableManager]: TermVariable |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,158 WARN L322 ript$VariableManager]: TermVariable |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,158 WARN L322 ript$VariableManager]: TermVariable threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,158 WARN L322 ript$VariableManager]: TermVariable threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,158 WARN L322 ript$VariableManager]: TermVariable |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,158 WARN L322 ript$VariableManager]: TermVariable |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,158 WARN L322 ript$VariableManager]: TermVariable threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,158 WARN L322 ript$VariableManager]: TermVariable threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,158 WARN L322 ript$VariableManager]: TermVariable threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,159 WARN L322 ript$VariableManager]: TermVariable threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,159 WARN L322 ript$VariableManager]: TermVariable threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,159 WARN L322 ript$VariableManager]: TermVariable threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,159 WARN L322 ript$VariableManager]: TermVariable threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,159 WARN L322 ript$VariableManager]: TermVariable threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,159 WARN L322 ript$VariableManager]: TermVariable threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,159 WARN L322 ript$VariableManager]: TermVariable threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,159 WARN L322 ript$VariableManager]: TermVariable |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,159 WARN L322 ript$VariableManager]: TermVariable |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,159 WARN L322 ript$VariableManager]: TermVariable |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,159 WARN L322 ript$VariableManager]: TermVariable |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,159 WARN L322 ript$VariableManager]: TermVariable |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,159 WARN L322 ript$VariableManager]: TermVariable threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,159 WARN L322 ript$VariableManager]: TermVariable |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,159 WARN L322 ript$VariableManager]: TermVariable threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,160 WARN L322 ript$VariableManager]: TermVariable threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,160 WARN L322 ript$VariableManager]: TermVariable threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,160 WARN L322 ript$VariableManager]: TermVariable |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,160 WARN L322 ript$VariableManager]: TermVariable threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,160 WARN L322 ript$VariableManager]: TermVariable threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,160 WARN L322 ript$VariableManager]: TermVariable |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,160 WARN L322 ript$VariableManager]: TermVariable threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,160 WARN L322 ript$VariableManager]: TermVariable threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,160 WARN L322 ript$VariableManager]: TermVariable |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,160 WARN L322 ript$VariableManager]: TermVariable threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,160 WARN L322 ript$VariableManager]: TermVariable |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,161 WARN L322 ript$VariableManager]: TermVariable |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,161 WARN L322 ript$VariableManager]: TermVariable threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,161 WARN L322 ript$VariableManager]: TermVariable threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,161 WARN L322 ript$VariableManager]: TermVariable |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,161 WARN L322 ript$VariableManager]: TermVariable threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:39,162 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-10 23:25:39,163 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:25:39,163 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 23:25:39,163 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 23:25:39,164 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 82 places, 80 transitions, 204 flow [2022-02-10 23:25:39,815 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 21526 states, 21520 states have (on average 4.188197026022305) internal successors, (90130), 21525 states have internal predecessors, (90130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:39,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 21526 states, 21520 states have (on average 4.188197026022305) internal successors, (90130), 21525 states have internal predecessors, (90130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:39,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-02-10 23:25:39,853 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:39,853 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:39,853 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:39,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:39,854 INFO L85 PathProgramCache]: Analyzing trace with hash -2143369301, now seen corresponding path program 1 times [2022-02-10 23:25:39,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:39,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230362519] [2022-02-10 23:25:39,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:39,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:39,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:39,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:39,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230362519] [2022-02-10 23:25:39,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230362519] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:39,866 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:39,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 23:25:39,866 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699564293] [2022-02-10 23:25:39,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:39,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 23:25:39,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:39,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 23:25:39,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:25:39,897 INFO L87 Difference]: Start difference. First operand has 21526 states, 21520 states have (on average 4.188197026022305) internal successors, (90130), 21525 states have internal predecessors, (90130), 0 states have call successors, (0), 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 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:40,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:40,221 INFO L93 Difference]: Finished difference Result 21526 states and 88575 transitions. [2022-02-10 23:25:40,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 23:25:40,221 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-02-10 23:25:40,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:40,442 INFO L225 Difference]: With dead ends: 21526 [2022-02-10 23:25:40,442 INFO L226 Difference]: Without dead ends: 21526 [2022-02-10 23:25:40,443 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:25:40,443 INFO L934 BasicCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:40,444 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:25:40,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21526 states. [2022-02-10 23:25:41,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21526 to 21526. [2022-02-10 23:25:41,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21526 states, 21520 states have (on average 4.115938661710037) internal successors, (88575), 21525 states have internal predecessors, (88575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:41,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21526 states to 21526 states and 88575 transitions. [2022-02-10 23:25:41,292 INFO L78 Accepts]: Start accepts. Automaton has 21526 states and 88575 transitions. Word has length 23 [2022-02-10 23:25:41,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:41,292 INFO L470 AbstractCegarLoop]: Abstraction has 21526 states and 88575 transitions. [2022-02-10 23:25:41,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:41,293 INFO L276 IsEmpty]: Start isEmpty. Operand 21526 states and 88575 transitions. [2022-02-10 23:25:41,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-02-10 23:25:41,293 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:41,293 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:41,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-10 23:25:41,293 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:41,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:41,294 INFO L85 PathProgramCache]: Analyzing trace with hash -2143368340, now seen corresponding path program 1 times [2022-02-10 23:25:41,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:41,298 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402940243] [2022-02-10 23:25:41,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:41,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:41,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:41,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:41,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402940243] [2022-02-10 23:25:41,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402940243] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:41,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:41,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:25:41,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751508869] [2022-02-10 23:25:41,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:41,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:25:41,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:41,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:25:41,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:25:41,323 INFO L87 Difference]: Start difference. First operand 21526 states and 88575 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:41,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:41,566 INFO L93 Difference]: Finished difference Result 21523 states and 88572 transitions. [2022-02-10 23:25:41,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:25:41,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-02-10 23:25:41,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:41,723 INFO L225 Difference]: With dead ends: 21523 [2022-02-10 23:25:41,723 INFO L226 Difference]: Without dead ends: 21523 [2022-02-10 23:25:41,723 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:25:41,723 INFO L934 BasicCegarLoop]: 50 mSDtfsCounter, 13 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:41,724 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 96 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:25:41,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21523 states. [2022-02-10 23:25:42,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21523 to 21523. [2022-02-10 23:25:42,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21523 states, 21518 states have (on average 4.116181801282647) internal successors, (88572), 21522 states have internal predecessors, (88572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:42,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21523 states to 21523 states and 88572 transitions. [2022-02-10 23:25:42,368 INFO L78 Accepts]: Start accepts. Automaton has 21523 states and 88572 transitions. Word has length 23 [2022-02-10 23:25:42,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:42,368 INFO L470 AbstractCegarLoop]: Abstraction has 21523 states and 88572 transitions. [2022-02-10 23:25:42,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:42,368 INFO L276 IsEmpty]: Start isEmpty. Operand 21523 states and 88572 transitions. [2022-02-10 23:25:42,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-02-10 23:25:42,369 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:42,369 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:42,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-10 23:25:42,369 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:42,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:42,369 INFO L85 PathProgramCache]: Analyzing trace with hash -184146753, now seen corresponding path program 1 times [2022-02-10 23:25:42,369 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:42,369 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489499344] [2022-02-10 23:25:42,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:42,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:42,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 23:25:42,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:42,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489499344] [2022-02-10 23:25:42,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489499344] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:42,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:42,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:25:42,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977871281] [2022-02-10 23:25:42,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:42,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:25:42,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:42,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:25:42,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:25:42,537 INFO L87 Difference]: Start difference. First operand 21523 states and 88572 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:42,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:42,672 INFO L93 Difference]: Finished difference Result 21283 states and 87480 transitions. [2022-02-10 23:25:42,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:25:42,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-02-10 23:25:42,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:42,751 INFO L225 Difference]: With dead ends: 21283 [2022-02-10 23:25:42,751 INFO L226 Difference]: Without dead ends: 21283 [2022-02-10 23:25:42,753 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:25:42,753 INFO L934 BasicCegarLoop]: 53 mSDtfsCounter, 20 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:42,754 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 90 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:25:42,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21283 states. [2022-02-10 23:25:43,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21283 to 21283. [2022-02-10 23:25:43,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21283 states, 21278 states have (on average 4.1112886549487735) internal successors, (87480), 21282 states have internal predecessors, (87480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:43,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21283 states to 21283 states and 87480 transitions. [2022-02-10 23:25:43,465 INFO L78 Accepts]: Start accepts. Automaton has 21283 states and 87480 transitions. Word has length 33 [2022-02-10 23:25:43,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:43,465 INFO L470 AbstractCegarLoop]: Abstraction has 21283 states and 87480 transitions. [2022-02-10 23:25:43,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:43,465 INFO L276 IsEmpty]: Start isEmpty. Operand 21283 states and 87480 transitions. [2022-02-10 23:25:43,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-10 23:25:43,466 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:43,466 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:43,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-10 23:25:43,466 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:43,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:43,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1187205763, now seen corresponding path program 1 times [2022-02-10 23:25:43,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:43,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001499018] [2022-02-10 23:25:43,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:43,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:43,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:43,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:43,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001499018] [2022-02-10 23:25:43,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001499018] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:25:43,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953870461] [2022-02-10 23:25:43,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:43,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:43,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:25:43,489 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:25:43,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 23:25:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:43,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 23:25:43,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:25:43,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:43,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:25:43,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:43,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953870461] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:25:43,821 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:25:43,821 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-10 23:25:43,822 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778566535] [2022-02-10 23:25:43,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:25:43,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 23:25:43,823 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:43,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 23:25:43,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-10 23:25:43,823 INFO L87 Difference]: Start difference. First operand 21283 states and 87480 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:43,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:43,991 INFO L93 Difference]: Finished difference Result 21181 states and 87225 transitions. [2022-02-10 23:25:43,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 23:25:43,992 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 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 36 [2022-02-10 23:25:43,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:44,223 INFO L225 Difference]: With dead ends: 21181 [2022-02-10 23:25:44,223 INFO L226 Difference]: Without dead ends: 21181 [2022-02-10 23:25:44,223 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-02-10 23:25:44,224 INFO L934 BasicCegarLoop]: 59 mSDtfsCounter, 176 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:44,224 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 261 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:25:44,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21181 states. [2022-02-10 23:25:44,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21181 to 21181. [2022-02-10 23:25:44,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21181 states, 21178 states have (on average 4.118660874492398) internal successors, (87225), 21180 states have internal predecessors, (87225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:44,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21181 states to 21181 states and 87225 transitions. [2022-02-10 23:25:44,910 INFO L78 Accepts]: Start accepts. Automaton has 21181 states and 87225 transitions. Word has length 36 [2022-02-10 23:25:44,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:44,911 INFO L470 AbstractCegarLoop]: Abstraction has 21181 states and 87225 transitions. [2022-02-10 23:25:44,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:44,911 INFO L276 IsEmpty]: Start isEmpty. Operand 21181 states and 87225 transitions. [2022-02-10 23:25:44,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-10 23:25:44,915 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:44,915 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:44,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-10 23:25:45,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:45,131 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:45,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:45,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1944197442, now seen corresponding path program 1 times [2022-02-10 23:25:45,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:45,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769548939] [2022-02-10 23:25:45,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:45,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:45,187 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:45,187 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:45,187 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769548939] [2022-02-10 23:25:45,187 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769548939] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:25:45,187 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136900375] [2022-02-10 23:25:45,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:45,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:45,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:25:45,189 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:25:45,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 23:25:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:45,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 23:25:45,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:25:45,407 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:45,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:25:45,520 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:45,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136900375] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:25:45,520 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:25:45,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-02-10 23:25:45,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727444746] [2022-02-10 23:25:45,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:25:45,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-10 23:25:45,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:45,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-10 23:25:45,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-02-10 23:25:45,522 INFO L87 Difference]: Start difference. First operand 21181 states and 87225 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:46,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:46,136 INFO L93 Difference]: Finished difference Result 30046 states and 121167 transitions. [2022-02-10 23:25:46,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 23:25:46,137 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 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 56 [2022-02-10 23:25:46,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:46,249 INFO L225 Difference]: With dead ends: 30046 [2022-02-10 23:25:46,249 INFO L226 Difference]: Without dead ends: 29938 [2022-02-10 23:25:46,249 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=246, Invalid=624, Unknown=0, NotChecked=0, Total=870 [2022-02-10 23:25:46,250 INFO L934 BasicCegarLoop]: 109 mSDtfsCounter, 596 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:46,250 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [596 Valid, 656 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 23:25:46,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29938 states. [2022-02-10 23:25:46,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29938 to 25807. [2022-02-10 23:25:46,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25807 states, 25804 states have (on average 4.07657727484111) internal successors, (105192), 25806 states have internal predecessors, (105192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:47,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25807 states to 25807 states and 105192 transitions. [2022-02-10 23:25:47,205 INFO L78 Accepts]: Start accepts. Automaton has 25807 states and 105192 transitions. Word has length 56 [2022-02-10 23:25:47,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:47,206 INFO L470 AbstractCegarLoop]: Abstraction has 25807 states and 105192 transitions. [2022-02-10 23:25:47,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:47,206 INFO L276 IsEmpty]: Start isEmpty. Operand 25807 states and 105192 transitions. [2022-02-10 23:25:47,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-10 23:25:47,211 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:47,211 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:47,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-10 23:25:47,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:47,427 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:47,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:47,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1730070023, now seen corresponding path program 1 times [2022-02-10 23:25:47,428 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:47,428 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584052508] [2022-02-10 23:25:47,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:47,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:47,523 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-10 23:25:47,523 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:47,523 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584052508] [2022-02-10 23:25:47,523 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584052508] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:25:47,523 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239459224] [2022-02-10 23:25:47,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:47,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:47,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:25:47,525 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:25:47,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-10 23:25:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:47,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-10 23:25:47,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:25:47,705 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-10 23:25:47,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:25:47,840 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-10 23:25:47,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239459224] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:25:47,840 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:25:47,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2022-02-10 23:25:47,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515781465] [2022-02-10 23:25:47,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:25:47,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 23:25:47,841 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:47,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 23:25:47,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2022-02-10 23:25:47,841 INFO L87 Difference]: Start difference. First operand 25807 states and 105192 transitions. Second operand has 20 states, 20 states have (on average 4.75) internal successors, (95), 20 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:48,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:48,713 INFO L93 Difference]: Finished difference Result 33286 states and 133785 transitions. [2022-02-10 23:25:48,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-10 23:25:48,713 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.75) internal successors, (95), 20 states have internal predecessors, (95), 0 states have call successors, (0), 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 56 [2022-02-10 23:25:48,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:48,846 INFO L225 Difference]: With dead ends: 33286 [2022-02-10 23:25:48,846 INFO L226 Difference]: Without dead ends: 32962 [2022-02-10 23:25:48,847 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=637, Invalid=2333, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 23:25:48,848 INFO L934 BasicCegarLoop]: 135 mSDtfsCounter, 902 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:48,849 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [902 Valid, 1037 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 23:25:48,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32962 states. [2022-02-10 23:25:49,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32962 to 26203. [2022-02-10 23:25:49,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26203 states, 26200 states have (on average 4.081488549618321) internal successors, (106935), 26202 states have internal predecessors, (106935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:49,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26203 states to 26203 states and 106935 transitions. [2022-02-10 23:25:49,650 INFO L78 Accepts]: Start accepts. Automaton has 26203 states and 106935 transitions. Word has length 56 [2022-02-10 23:25:49,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:49,650 INFO L470 AbstractCegarLoop]: Abstraction has 26203 states and 106935 transitions. [2022-02-10 23:25:49,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.75) internal successors, (95), 20 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:49,650 INFO L276 IsEmpty]: Start isEmpty. Operand 26203 states and 106935 transitions. [2022-02-10 23:25:49,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-10 23:25:49,654 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:49,654 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:49,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-10 23:25:49,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:49,862 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:49,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:49,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1109338339, now seen corresponding path program 1 times [2022-02-10 23:25:49,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:49,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529041452] [2022-02-10 23:25:49,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:49,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:49,906 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:49,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:49,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529041452] [2022-02-10 23:25:49,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529041452] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:25:49,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414929422] [2022-02-10 23:25:49,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:49,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:49,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:25:49,908 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:25:49,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-10 23:25:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:49,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-10 23:25:49,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:25:50,288 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:50,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:25:50,449 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:50,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414929422] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:25:50,450 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:25:50,450 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 24 [2022-02-10 23:25:50,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486005913] [2022-02-10 23:25:50,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:25:50,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-10 23:25:50,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:50,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-10 23:25:50,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=460, Unknown=0, NotChecked=0, Total=552 [2022-02-10 23:25:50,452 INFO L87 Difference]: Start difference. First operand 26203 states and 106935 transitions. Second operand has 24 states, 24 states have (on average 4.708333333333333) internal successors, (113), 24 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:51,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:51,356 INFO L93 Difference]: Finished difference Result 26824 states and 108546 transitions. [2022-02-10 23:25:51,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-10 23:25:51,357 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.708333333333333) internal successors, (113), 24 states have internal predecessors, (113), 0 states have call successors, (0), 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 56 [2022-02-10 23:25:51,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:51,449 INFO L225 Difference]: With dead ends: 26824 [2022-02-10 23:25:51,449 INFO L226 Difference]: Without dead ends: 26824 [2022-02-10 23:25:51,451 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1750 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1176, Invalid=4676, Unknown=0, NotChecked=0, Total=5852 [2022-02-10 23:25:51,452 INFO L934 BasicCegarLoop]: 169 mSDtfsCounter, 1874 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1874 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:51,452 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1874 Valid, 1370 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 23:25:51,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26824 states. [2022-02-10 23:25:52,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26824 to 16861. [2022-02-10 23:25:52,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16861 states, 16860 states have (on average 4.100533807829182) internal successors, (69135), 16860 states have internal predecessors, (69135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:52,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16861 states to 16861 states and 69135 transitions. [2022-02-10 23:25:52,300 INFO L78 Accepts]: Start accepts. Automaton has 16861 states and 69135 transitions. Word has length 56 [2022-02-10 23:25:52,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:52,300 INFO L470 AbstractCegarLoop]: Abstraction has 16861 states and 69135 transitions. [2022-02-10 23:25:52,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.708333333333333) internal successors, (113), 24 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:52,301 INFO L276 IsEmpty]: Start isEmpty. Operand 16861 states and 69135 transitions. [2022-02-10 23:25:52,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-10 23:25:52,333 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:52,333 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:52,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-10 23:25:52,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:52,549 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:52,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:52,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1693116247, now seen corresponding path program 1 times [2022-02-10 23:25:52,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:52,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472237244] [2022-02-10 23:25:52,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:52,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:25:52,564 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 23:25:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:25:52,579 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 23:25:52,579 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 23:25:52,579 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-10 23:25:52,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-10 23:25:52,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-10 23:25:52,583 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:52,583 WARN L239 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-10 23:25:52,583 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2022-02-10 23:25:52,590 WARN L322 ript$VariableManager]: TermVariable |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,590 WARN L322 ript$VariableManager]: TermVariable |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,590 WARN L322 ript$VariableManager]: TermVariable threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,590 WARN L322 ript$VariableManager]: TermVariable threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,591 WARN L322 ript$VariableManager]: TermVariable |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,591 WARN L322 ript$VariableManager]: TermVariable |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,591 WARN L322 ript$VariableManager]: TermVariable threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,591 WARN L322 ript$VariableManager]: TermVariable threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,591 WARN L322 ript$VariableManager]: TermVariable threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,591 WARN L322 ript$VariableManager]: TermVariable threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,591 WARN L322 ript$VariableManager]: TermVariable threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,591 WARN L322 ript$VariableManager]: TermVariable threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,591 WARN L322 ript$VariableManager]: TermVariable threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,591 WARN L322 ript$VariableManager]: TermVariable threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,591 WARN L322 ript$VariableManager]: TermVariable threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,591 WARN L322 ript$VariableManager]: TermVariable threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,591 WARN L322 ript$VariableManager]: TermVariable |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,591 WARN L322 ript$VariableManager]: TermVariable |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,591 WARN L322 ript$VariableManager]: TermVariable |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,591 WARN L322 ript$VariableManager]: TermVariable |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,592 WARN L322 ript$VariableManager]: TermVariable |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,592 WARN L322 ript$VariableManager]: TermVariable |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,592 WARN L322 ript$VariableManager]: TermVariable threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,592 WARN L322 ript$VariableManager]: TermVariable threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,592 WARN L322 ript$VariableManager]: TermVariable |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,592 WARN L322 ript$VariableManager]: TermVariable |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,592 WARN L322 ript$VariableManager]: TermVariable threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,592 WARN L322 ript$VariableManager]: TermVariable threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,592 WARN L322 ript$VariableManager]: TermVariable threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,592 WARN L322 ript$VariableManager]: TermVariable threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,593 WARN L322 ript$VariableManager]: TermVariable threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,593 WARN L322 ript$VariableManager]: TermVariable threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,593 WARN L322 ript$VariableManager]: TermVariable threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,593 WARN L322 ript$VariableManager]: TermVariable threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,593 WARN L322 ript$VariableManager]: TermVariable threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,593 WARN L322 ript$VariableManager]: TermVariable threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,593 WARN L322 ript$VariableManager]: TermVariable |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,593 WARN L322 ript$VariableManager]: TermVariable |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,593 WARN L322 ript$VariableManager]: TermVariable |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,593 WARN L322 ript$VariableManager]: TermVariable |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,593 WARN L322 ript$VariableManager]: TermVariable |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,593 WARN L322 ript$VariableManager]: TermVariable |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,593 WARN L322 ript$VariableManager]: TermVariable threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,593 WARN L322 ript$VariableManager]: TermVariable threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,593 WARN L322 ript$VariableManager]: TermVariable |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,594 WARN L322 ript$VariableManager]: TermVariable |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,594 WARN L322 ript$VariableManager]: TermVariable threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,594 WARN L322 ript$VariableManager]: TermVariable threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,594 WARN L322 ript$VariableManager]: TermVariable threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,594 WARN L322 ript$VariableManager]: TermVariable threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,594 WARN L322 ript$VariableManager]: TermVariable threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,594 WARN L322 ript$VariableManager]: TermVariable threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,594 WARN L322 ript$VariableManager]: TermVariable threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,594 WARN L322 ript$VariableManager]: TermVariable threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,594 WARN L322 ript$VariableManager]: TermVariable threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,594 WARN L322 ript$VariableManager]: TermVariable threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,594 WARN L322 ript$VariableManager]: TermVariable |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,594 WARN L322 ript$VariableManager]: TermVariable |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,594 WARN L322 ript$VariableManager]: TermVariable |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,594 WARN L322 ript$VariableManager]: TermVariable |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,594 WARN L322 ript$VariableManager]: TermVariable |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,594 WARN L322 ript$VariableManager]: TermVariable |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,595 WARN L322 ript$VariableManager]: TermVariable threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,595 WARN L322 ript$VariableManager]: TermVariable threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,595 WARN L322 ript$VariableManager]: TermVariable |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,595 WARN L322 ript$VariableManager]: TermVariable |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,595 WARN L322 ript$VariableManager]: TermVariable threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,595 WARN L322 ript$VariableManager]: TermVariable threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,595 WARN L322 ript$VariableManager]: TermVariable threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,595 WARN L322 ript$VariableManager]: TermVariable threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,595 WARN L322 ript$VariableManager]: TermVariable threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,595 WARN L322 ript$VariableManager]: TermVariable threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,595 WARN L322 ript$VariableManager]: TermVariable threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,595 WARN L322 ript$VariableManager]: TermVariable threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,595 WARN L322 ript$VariableManager]: TermVariable threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,595 WARN L322 ript$VariableManager]: TermVariable threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,595 WARN L322 ript$VariableManager]: TermVariable |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,595 WARN L322 ript$VariableManager]: TermVariable |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,595 WARN L322 ript$VariableManager]: TermVariable |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,596 WARN L322 ript$VariableManager]: TermVariable |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,596 WARN L322 ript$VariableManager]: TermVariable |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,596 WARN L322 ript$VariableManager]: TermVariable |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,596 WARN L322 ript$VariableManager]: TermVariable threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,596 WARN L322 ript$VariableManager]: TermVariable threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,596 WARN L322 ript$VariableManager]: TermVariable |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,596 WARN L322 ript$VariableManager]: TermVariable |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,596 WARN L322 ript$VariableManager]: TermVariable threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,596 WARN L322 ript$VariableManager]: TermVariable threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,596 WARN L322 ript$VariableManager]: TermVariable threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,596 WARN L322 ript$VariableManager]: TermVariable threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,596 WARN L322 ript$VariableManager]: TermVariable threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,596 WARN L322 ript$VariableManager]: TermVariable threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,596 WARN L322 ript$VariableManager]: TermVariable threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,596 WARN L322 ript$VariableManager]: TermVariable threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,596 WARN L322 ript$VariableManager]: TermVariable threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,596 WARN L322 ript$VariableManager]: TermVariable threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,596 WARN L322 ript$VariableManager]: TermVariable |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,597 WARN L322 ript$VariableManager]: TermVariable |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,597 WARN L322 ript$VariableManager]: TermVariable |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,597 WARN L322 ript$VariableManager]: TermVariable |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,597 WARN L322 ript$VariableManager]: TermVariable |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,597 WARN L322 ript$VariableManager]: TermVariable threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,597 WARN L322 ript$VariableManager]: TermVariable |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,597 WARN L322 ript$VariableManager]: TermVariable threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,597 WARN L322 ript$VariableManager]: TermVariable threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,597 WARN L322 ript$VariableManager]: TermVariable threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,597 WARN L322 ript$VariableManager]: TermVariable |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,598 WARN L322 ript$VariableManager]: TermVariable threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,598 WARN L322 ript$VariableManager]: TermVariable |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,598 WARN L322 ript$VariableManager]: TermVariable threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,598 WARN L322 ript$VariableManager]: TermVariable threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,598 WARN L322 ript$VariableManager]: TermVariable |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,598 WARN L322 ript$VariableManager]: TermVariable threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,598 WARN L322 ript$VariableManager]: TermVariable threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,598 WARN L322 ript$VariableManager]: TermVariable |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,598 WARN L322 ript$VariableManager]: TermVariable threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,598 WARN L322 ript$VariableManager]: TermVariable |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,598 WARN L322 ript$VariableManager]: TermVariable threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,598 WARN L322 ript$VariableManager]: TermVariable threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,599 WARN L322 ript$VariableManager]: TermVariable |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,599 WARN L322 ript$VariableManager]: TermVariable |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,599 WARN L322 ript$VariableManager]: TermVariable threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,599 WARN L322 ript$VariableManager]: TermVariable threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,599 WARN L322 ript$VariableManager]: TermVariable |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,599 WARN L322 ript$VariableManager]: TermVariable threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:25:52,601 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-02-10 23:25:52,601 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:25:52,601 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 23:25:52,602 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 23:25:52,602 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 90 places, 87 transitions, 234 flow [2022-02-10 23:25:56,406 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 129094 states, 129087 states have (on average 5.021992919503901) internal successors, (648274), 129093 states have internal predecessors, (648274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:56,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 129094 states, 129087 states have (on average 5.021992919503901) internal successors, (648274), 129093 states have internal predecessors, (648274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:56,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-02-10 23:25:56,603 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:56,603 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:56,603 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:25:56,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:56,605 INFO L85 PathProgramCache]: Analyzing trace with hash 239291490, now seen corresponding path program 1 times [2022-02-10 23:25:56,605 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:56,605 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385839694] [2022-02-10 23:25:56,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:56,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:56,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:56,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:56,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385839694] [2022-02-10 23:25:56,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385839694] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:56,638 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:56,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 23:25:56,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227801397] [2022-02-10 23:25:56,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:56,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 23:25:56,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:56,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 23:25:56,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:25:56,832 INFO L87 Difference]: Start difference. First operand has 129094 states, 129087 states have (on average 5.021992919503901) internal successors, (648274), 129093 states have internal predecessors, (648274), 0 states have call successors, (0), 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 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:58,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:58,398 INFO L93 Difference]: Finished difference Result 129094 states and 638943 transitions. [2022-02-10 23:25:58,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 23:25:58,398 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-02-10 23:25:58,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:59,573 INFO L225 Difference]: With dead ends: 129094 [2022-02-10 23:25:59,573 INFO L226 Difference]: Without dead ends: 129094 [2022-02-10 23:25:59,574 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:25:59,575 INFO L934 BasicCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:59,575 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:25:59,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129094 states. [2022-02-10 23:26:04,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129094 to 129094. [2022-02-10 23:26:04,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129094 states, 129087 states have (on average 4.949708336238351) internal successors, (638943), 129093 states have internal predecessors, (638943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:26:05,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129094 states to 129094 states and 638943 transitions. [2022-02-10 23:26:05,704 INFO L78 Accepts]: Start accepts. Automaton has 129094 states and 638943 transitions. Word has length 23 [2022-02-10 23:26:05,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:26:05,704 INFO L470 AbstractCegarLoop]: Abstraction has 129094 states and 638943 transitions. [2022-02-10 23:26:05,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:26:05,704 INFO L276 IsEmpty]: Start isEmpty. Operand 129094 states and 638943 transitions. [2022-02-10 23:26:05,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-02-10 23:26:05,704 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:26:05,704 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:26:05,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-10 23:26:05,705 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:26:05,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:26:05,705 INFO L85 PathProgramCache]: Analyzing trace with hash 239292451, now seen corresponding path program 1 times [2022-02-10 23:26:05,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:26:05,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783996205] [2022-02-10 23:26:05,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:26:05,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:26:05,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:26:05,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:26:05,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:26:05,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783996205] [2022-02-10 23:26:05,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783996205] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:26:05,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:26:05,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:26:05,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249239409] [2022-02-10 23:26:05,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:26:05,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:26:05,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:26:05,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:26:05,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:26:05,733 INFO L87 Difference]: Start difference. First operand 129094 states and 638943 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:26:07,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:26:07,479 INFO L93 Difference]: Finished difference Result 129091 states and 638940 transitions. [2022-02-10 23:26:07,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:26:07,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-02-10 23:26:07,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:26:08,974 INFO L225 Difference]: With dead ends: 129091 [2022-02-10 23:26:08,974 INFO L226 Difference]: Without dead ends: 129091 [2022-02-10 23:26:08,974 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:26:08,975 INFO L934 BasicCegarLoop]: 55 mSDtfsCounter, 13 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:26:08,975 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 106 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:26:09,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129091 states. [2022-02-10 23:26:13,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129091 to 129091. [2022-02-10 23:26:13,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129091 states, 129085 states have (on average 4.949761784870434) internal successors, (638940), 129090 states have internal predecessors, (638940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:26:15,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129091 states to 129091 states and 638940 transitions. [2022-02-10 23:26:15,620 INFO L78 Accepts]: Start accepts. Automaton has 129091 states and 638940 transitions. Word has length 23 [2022-02-10 23:26:15,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:26:15,620 INFO L470 AbstractCegarLoop]: Abstraction has 129091 states and 638940 transitions. [2022-02-10 23:26:15,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:26:15,620 INFO L276 IsEmpty]: Start isEmpty. Operand 129091 states and 638940 transitions. [2022-02-10 23:26:15,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-02-10 23:26:15,621 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:26:15,621 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:26:15,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-10 23:26:15,621 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:26:15,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:26:15,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1483448859, now seen corresponding path program 1 times [2022-02-10 23:26:15,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:26:15,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158496001] [2022-02-10 23:26:15,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:26:15,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:26:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:26:15,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 23:26:15,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:26:15,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158496001] [2022-02-10 23:26:15,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158496001] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:26:15,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:26:15,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:26:15,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315753107] [2022-02-10 23:26:15,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:26:15,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:26:15,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:26:15,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:26:15,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:26:15,660 INFO L87 Difference]: Start difference. First operand 129091 states and 638940 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:26:17,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:26:17,807 INFO L93 Difference]: Finished difference Result 128365 states and 634932 transitions. [2022-02-10 23:26:17,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:26:17,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-02-10 23:26:17,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:26:18,623 INFO L225 Difference]: With dead ends: 128365 [2022-02-10 23:26:18,623 INFO L226 Difference]: Without dead ends: 128365 [2022-02-10 23:26:18,624 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:26:18,624 INFO L934 BasicCegarLoop]: 58 mSDtfsCounter, 23 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:26:18,625 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 99 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:26:19,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128365 states. [2022-02-10 23:26:23,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128365 to 128365. [2022-02-10 23:26:23,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128365 states, 128359 states have (on average 4.946532771367805) internal successors, (634932), 128364 states have internal predecessors, (634932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:26:25,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128365 states to 128365 states and 634932 transitions. [2022-02-10 23:26:25,199 INFO L78 Accepts]: Start accepts. Automaton has 128365 states and 634932 transitions. Word has length 33 [2022-02-10 23:26:25,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:26:25,199 INFO L470 AbstractCegarLoop]: Abstraction has 128365 states and 634932 transitions. [2022-02-10 23:26:25,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:26:25,199 INFO L276 IsEmpty]: Start isEmpty. Operand 128365 states and 634932 transitions. [2022-02-10 23:26:25,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-10 23:26:25,199 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:26:25,199 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:26:25,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-10 23:26:25,200 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:26:25,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:26:25,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1737726477, now seen corresponding path program 1 times [2022-02-10 23:26:25,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:26:25,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638556923] [2022-02-10 23:26:25,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:26:25,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:26:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:26:25,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:26:25,222 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:26:25,222 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638556923] [2022-02-10 23:26:25,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638556923] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:26:25,222 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833917741] [2022-02-10 23:26:25,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:26:25,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:26:25,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:26:25,228 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:26:25,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-10 23:26:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:26:25,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 23:26:25,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:26:25,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:26:25,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:26:25,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:26:25,397 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833917741] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:26:25,397 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:26:25,398 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-10 23:26:25,398 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735711213] [2022-02-10 23:26:25,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:26:25,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 23:26:25,398 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:26:25,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 23:26:25,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-10 23:26:25,398 INFO L87 Difference]: Start difference. First operand 128365 states and 634932 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:26:27,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:26:27,527 INFO L93 Difference]: Finished difference Result 128263 states and 634677 transitions. [2022-02-10 23:26:27,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 23:26:27,527 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 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 36 [2022-02-10 23:26:27,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:26:29,465 INFO L225 Difference]: With dead ends: 128263 [2022-02-10 23:26:29,465 INFO L226 Difference]: Without dead ends: 128263 [2022-02-10 23:26:29,465 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-02-10 23:26:29,467 INFO L934 BasicCegarLoop]: 64 mSDtfsCounter, 140 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:26:29,467 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 351 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:26:29,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128263 states. [2022-02-10 23:26:34,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128263 to 128263. [2022-02-10 23:26:34,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128263 states, 128259 states have (on average 4.948401281781395) internal successors, (634677), 128262 states have internal predecessors, (634677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:26:35,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128263 states to 128263 states and 634677 transitions. [2022-02-10 23:26:35,959 INFO L78 Accepts]: Start accepts. Automaton has 128263 states and 634677 transitions. Word has length 36 [2022-02-10 23:26:35,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:26:35,959 INFO L470 AbstractCegarLoop]: Abstraction has 128263 states and 634677 transitions. [2022-02-10 23:26:35,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:26:35,959 INFO L276 IsEmpty]: Start isEmpty. Operand 128263 states and 634677 transitions. [2022-02-10 23:26:35,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-10 23:26:35,977 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:26:35,977 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:26:35,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-10 23:26:36,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-02-10 23:26:36,178 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:26:36,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:26:36,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1612090915, now seen corresponding path program 1 times [2022-02-10 23:26:36,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:26:36,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177437822] [2022-02-10 23:26:36,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:26:36,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:26:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:26:36,230 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-10 23:26:36,230 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:26:36,230 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177437822] [2022-02-10 23:26:36,230 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177437822] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:26:36,230 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960682051] [2022-02-10 23:26:36,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:26:36,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:26:36,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:26:36,232 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:26:36,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-10 23:26:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:26:36,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-10 23:26:36,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:26:36,429 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-10 23:26:36,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:26:36,563 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-10 23:26:36,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960682051] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:26:36,564 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:26:36,564 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2022-02-10 23:26:36,564 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025469325] [2022-02-10 23:26:36,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:26:36,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 23:26:36,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:26:36,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 23:26:36,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2022-02-10 23:26:36,565 INFO L87 Difference]: Start difference. First operand 128263 states and 634677 transitions. Second operand has 20 states, 20 states have (on average 4.75) internal successors, (95), 20 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:26:39,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:26:39,577 INFO L93 Difference]: Finished difference Result 187105 states and 909702 transitions. [2022-02-10 23:26:39,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-10 23:26:39,577 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.75) internal successors, (95), 20 states have internal predecessors, (95), 0 states have call successors, (0), 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 56 [2022-02-10 23:26:39,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:26:41,593 INFO L225 Difference]: With dead ends: 187105 [2022-02-10 23:26:41,593 INFO L226 Difference]: Without dead ends: 186754 [2022-02-10 23:26:41,594 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=637, Invalid=2333, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 23:26:41,594 INFO L934 BasicCegarLoop]: 152 mSDtfsCounter, 698 mSDsluCounter, 1397 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 23:26:41,595 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [698 Valid, 1549 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 23:26:42,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186754 states. [2022-02-10 23:26:47,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186754 to 159943. [2022-02-10 23:26:47,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159943 states, 159939 states have (on average 4.904901243599122) internal successors, (784485), 159942 states have internal predecessors, (784485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:26:49,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159943 states to 159943 states and 784485 transitions. [2022-02-10 23:26:49,720 INFO L78 Accepts]: Start accepts. Automaton has 159943 states and 784485 transitions. Word has length 56 [2022-02-10 23:26:49,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:26:49,721 INFO L470 AbstractCegarLoop]: Abstraction has 159943 states and 784485 transitions. [2022-02-10 23:26:49,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.75) internal successors, (95), 20 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:26:49,721 INFO L276 IsEmpty]: Start isEmpty. Operand 159943 states and 784485 transitions. [2022-02-10 23:26:49,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-10 23:26:49,728 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:26:49,728 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:26:49,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-10 23:26:49,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-02-10 23:26:49,942 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:26:49,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:26:49,942 INFO L85 PathProgramCache]: Analyzing trace with hash 930514222, now seen corresponding path program 1 times [2022-02-10 23:26:49,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:26:49,943 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55541640] [2022-02-10 23:26:49,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:26:49,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:26:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:26:50,058 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:26:50,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:26:50,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55541640] [2022-02-10 23:26:50,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55541640] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:26:50,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177335807] [2022-02-10 23:26:50,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:26:50,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:26:50,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:26:50,060 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:26:50,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-10 23:26:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:26:50,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-10 23:26:50,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:26:50,275 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:26:50,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:26:50,441 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:26:50,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177335807] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:26:50,442 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:26:50,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-02-10 23:26:50,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474768397] [2022-02-10 23:26:50,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:26:50,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-10 23:26:50,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:26:50,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-10 23:26:50,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2022-02-10 23:26:50,443 INFO L87 Difference]: Start difference. First operand 159943 states and 784485 transitions. Second operand has 24 states, 24 states have (on average 4.375) internal successors, (105), 24 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:26:54,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:26:54,279 INFO L93 Difference]: Finished difference Result 208570 states and 1015344 transitions. [2022-02-10 23:26:54,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-10 23:26:54,279 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.375) internal successors, (105), 24 states have internal predecessors, (105), 0 states have call successors, (0), 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 56 [2022-02-10 23:26:54,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:26:56,628 INFO L225 Difference]: With dead ends: 208570 [2022-02-10 23:26:56,629 INFO L226 Difference]: Without dead ends: 207841 [2022-02-10 23:26:56,630 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2092 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1273, Invalid=5369, Unknown=0, NotChecked=0, Total=6642 [2022-02-10 23:26:56,630 INFO L934 BasicCegarLoop]: 196 mSDtfsCounter, 1940 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1940 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 23:26:56,630 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1940 Valid, 2095 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 23:26:57,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207841 states. [2022-02-10 23:27:05,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207841 to 165667. [2022-02-10 23:27:05,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165667 states, 165665 states have (on average 4.923610901518124) internal successors, (815670), 165666 states have internal predecessors, (815670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:27:07,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165667 states to 165667 states and 815670 transitions. [2022-02-10 23:27:07,153 INFO L78 Accepts]: Start accepts. Automaton has 165667 states and 815670 transitions. Word has length 56 [2022-02-10 23:27:07,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:27:07,153 INFO L470 AbstractCegarLoop]: Abstraction has 165667 states and 815670 transitions. [2022-02-10 23:27:07,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.375) internal successors, (105), 24 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:27:07,153 INFO L276 IsEmpty]: Start isEmpty. Operand 165667 states and 815670 transitions. [2022-02-10 23:27:07,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-10 23:27:07,251 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:27:07,251 INFO L515 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:27:07,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-10 23:27:07,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-02-10 23:27:07,467 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:27:07,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:27:07,467 INFO L85 PathProgramCache]: Analyzing trace with hash -184578877, now seen corresponding path program 1 times [2022-02-10 23:27:07,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:27:07,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23631181] [2022-02-10 23:27:07,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:27:07,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:27:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:27:07,480 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 23:27:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:27:07,547 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 23:27:07,547 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 23:27:07,547 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-10 23:27:07,548 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-10 23:27:07,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-10 23:27:07,548 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:27:07,548 WARN L239 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-10 23:27:07,548 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2022-02-10 23:27:07,558 WARN L322 ript$VariableManager]: TermVariable |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,558 WARN L322 ript$VariableManager]: TermVariable |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,558 WARN L322 ript$VariableManager]: TermVariable threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,558 WARN L322 ript$VariableManager]: TermVariable threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,558 WARN L322 ript$VariableManager]: TermVariable |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,571 WARN L322 ript$VariableManager]: TermVariable |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,571 WARN L322 ript$VariableManager]: TermVariable threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,571 WARN L322 ript$VariableManager]: TermVariable threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,571 WARN L322 ript$VariableManager]: TermVariable threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,571 WARN L322 ript$VariableManager]: TermVariable threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,571 WARN L322 ript$VariableManager]: TermVariable threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,571 WARN L322 ript$VariableManager]: TermVariable threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,571 WARN L322 ript$VariableManager]: TermVariable threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,571 WARN L322 ript$VariableManager]: TermVariable threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,572 WARN L322 ript$VariableManager]: TermVariable threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,572 WARN L322 ript$VariableManager]: TermVariable threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,572 WARN L322 ript$VariableManager]: TermVariable |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,572 WARN L322 ript$VariableManager]: TermVariable |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,572 WARN L322 ript$VariableManager]: TermVariable |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,572 WARN L322 ript$VariableManager]: TermVariable |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,572 WARN L322 ript$VariableManager]: TermVariable |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,572 WARN L322 ript$VariableManager]: TermVariable |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,572 WARN L322 ript$VariableManager]: TermVariable threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,572 WARN L322 ript$VariableManager]: TermVariable threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,572 WARN L322 ript$VariableManager]: TermVariable |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,572 WARN L322 ript$VariableManager]: TermVariable |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,572 WARN L322 ript$VariableManager]: TermVariable threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,572 WARN L322 ript$VariableManager]: TermVariable threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,572 WARN L322 ript$VariableManager]: TermVariable threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,572 WARN L322 ript$VariableManager]: TermVariable threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,573 WARN L322 ript$VariableManager]: TermVariable threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,573 WARN L322 ript$VariableManager]: TermVariable threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,573 WARN L322 ript$VariableManager]: TermVariable threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,573 WARN L322 ript$VariableManager]: TermVariable threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,573 WARN L322 ript$VariableManager]: TermVariable threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,573 WARN L322 ript$VariableManager]: TermVariable threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,573 WARN L322 ript$VariableManager]: TermVariable |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,573 WARN L322 ript$VariableManager]: TermVariable |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,573 WARN L322 ript$VariableManager]: TermVariable |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,573 WARN L322 ript$VariableManager]: TermVariable |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,574 WARN L322 ript$VariableManager]: TermVariable |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,574 WARN L322 ript$VariableManager]: TermVariable |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,574 WARN L322 ript$VariableManager]: TermVariable threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,574 WARN L322 ript$VariableManager]: TermVariable threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,574 WARN L322 ript$VariableManager]: TermVariable |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,574 WARN L322 ript$VariableManager]: TermVariable |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,574 WARN L322 ript$VariableManager]: TermVariable threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,574 WARN L322 ript$VariableManager]: TermVariable threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,574 WARN L322 ript$VariableManager]: TermVariable threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,574 WARN L322 ript$VariableManager]: TermVariable threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,574 WARN L322 ript$VariableManager]: TermVariable threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,574 WARN L322 ript$VariableManager]: TermVariable threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,574 WARN L322 ript$VariableManager]: TermVariable threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,574 WARN L322 ript$VariableManager]: TermVariable threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,574 WARN L322 ript$VariableManager]: TermVariable threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,574 WARN L322 ript$VariableManager]: TermVariable threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,574 WARN L322 ript$VariableManager]: TermVariable |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,574 WARN L322 ript$VariableManager]: TermVariable |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,575 WARN L322 ript$VariableManager]: TermVariable |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,575 WARN L322 ript$VariableManager]: TermVariable |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,575 WARN L322 ript$VariableManager]: TermVariable |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,575 WARN L322 ript$VariableManager]: TermVariable |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,575 WARN L322 ript$VariableManager]: TermVariable threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,575 WARN L322 ript$VariableManager]: TermVariable threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,575 WARN L322 ript$VariableManager]: TermVariable |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,575 WARN L322 ript$VariableManager]: TermVariable |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,575 WARN L322 ript$VariableManager]: TermVariable threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,575 WARN L322 ript$VariableManager]: TermVariable threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,575 WARN L322 ript$VariableManager]: TermVariable threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,575 WARN L322 ript$VariableManager]: TermVariable threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,575 WARN L322 ript$VariableManager]: TermVariable threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,575 WARN L322 ript$VariableManager]: TermVariable threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,575 WARN L322 ript$VariableManager]: TermVariable threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,575 WARN L322 ript$VariableManager]: TermVariable threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,575 WARN L322 ript$VariableManager]: TermVariable threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,575 WARN L322 ript$VariableManager]: TermVariable threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,576 WARN L322 ript$VariableManager]: TermVariable |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,576 WARN L322 ript$VariableManager]: TermVariable |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,576 WARN L322 ript$VariableManager]: TermVariable |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,576 WARN L322 ript$VariableManager]: TermVariable |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,576 WARN L322 ript$VariableManager]: TermVariable |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,576 WARN L322 ript$VariableManager]: TermVariable |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,576 WARN L322 ript$VariableManager]: TermVariable threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,577 WARN L322 ript$VariableManager]: TermVariable threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,577 WARN L322 ript$VariableManager]: TermVariable |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,577 WARN L322 ript$VariableManager]: TermVariable |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,577 WARN L322 ript$VariableManager]: TermVariable threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,577 WARN L322 ript$VariableManager]: TermVariable threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,577 WARN L322 ript$VariableManager]: TermVariable threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,577 WARN L322 ript$VariableManager]: TermVariable threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,577 WARN L322 ript$VariableManager]: TermVariable threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,577 WARN L322 ript$VariableManager]: TermVariable threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,577 WARN L322 ript$VariableManager]: TermVariable threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,577 WARN L322 ript$VariableManager]: TermVariable threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,577 WARN L322 ript$VariableManager]: TermVariable threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,577 WARN L322 ript$VariableManager]: TermVariable threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,577 WARN L322 ript$VariableManager]: TermVariable |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,578 WARN L322 ript$VariableManager]: TermVariable |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,578 WARN L322 ript$VariableManager]: TermVariable |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,578 WARN L322 ript$VariableManager]: TermVariable |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,578 WARN L322 ript$VariableManager]: TermVariable |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,578 WARN L322 ript$VariableManager]: TermVariable |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,578 WARN L322 ript$VariableManager]: TermVariable threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,578 WARN L322 ript$VariableManager]: TermVariable threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,578 WARN L322 ript$VariableManager]: TermVariable |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,578 WARN L322 ript$VariableManager]: TermVariable |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,578 WARN L322 ript$VariableManager]: TermVariable threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,578 WARN L322 ript$VariableManager]: TermVariable threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,578 WARN L322 ript$VariableManager]: TermVariable threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,578 WARN L322 ript$VariableManager]: TermVariable threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,579 WARN L322 ript$VariableManager]: TermVariable threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,579 WARN L322 ript$VariableManager]: TermVariable threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,579 WARN L322 ript$VariableManager]: TermVariable threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,579 WARN L322 ript$VariableManager]: TermVariable threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,579 WARN L322 ript$VariableManager]: TermVariable threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,579 WARN L322 ript$VariableManager]: TermVariable threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,579 WARN L322 ript$VariableManager]: TermVariable |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,579 WARN L322 ript$VariableManager]: TermVariable |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,579 WARN L322 ript$VariableManager]: TermVariable |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,579 WARN L322 ript$VariableManager]: TermVariable |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,579 WARN L322 ript$VariableManager]: TermVariable threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,579 WARN L322 ript$VariableManager]: TermVariable |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,579 WARN L322 ript$VariableManager]: TermVariable |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,579 WARN L322 ript$VariableManager]: TermVariable threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,580 WARN L322 ript$VariableManager]: TermVariable threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,580 WARN L322 ript$VariableManager]: TermVariable threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,580 WARN L322 ript$VariableManager]: TermVariable |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,580 WARN L322 ript$VariableManager]: TermVariable |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,582 WARN L322 ript$VariableManager]: TermVariable threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,582 WARN L322 ript$VariableManager]: TermVariable threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,583 WARN L322 ript$VariableManager]: TermVariable |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,583 WARN L322 ript$VariableManager]: TermVariable threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,583 WARN L322 ript$VariableManager]: TermVariable |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,583 WARN L322 ript$VariableManager]: TermVariable threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,583 WARN L322 ript$VariableManager]: TermVariable threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,583 WARN L322 ript$VariableManager]: TermVariable |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,583 WARN L322 ript$VariableManager]: TermVariable threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,583 WARN L322 ript$VariableManager]: TermVariable |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,583 WARN L322 ript$VariableManager]: TermVariable threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,583 WARN L322 ript$VariableManager]: TermVariable threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,584 WARN L322 ript$VariableManager]: TermVariable threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,584 WARN L322 ript$VariableManager]: TermVariable threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,584 WARN L322 ript$VariableManager]: TermVariable |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,584 WARN L322 ript$VariableManager]: TermVariable threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,584 WARN L322 ript$VariableManager]: TermVariable |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,584 WARN L322 ript$VariableManager]: TermVariable threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,584 WARN L322 ript$VariableManager]: TermVariable |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,584 WARN L322 ript$VariableManager]: TermVariable threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,584 WARN L322 ript$VariableManager]: TermVariable |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,585 WARN L322 ript$VariableManager]: TermVariable threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:27:07,588 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-02-10 23:27:07,588 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:27:07,589 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 23:27:07,589 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 23:27:07,598 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 98 places, 94 transitions, 266 flow [2022-02-10 23:27:40,490 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 774502 states, 774494 states have (on average 5.855407530594168) internal successors, (4534978), 774501 states have internal predecessors, (4534978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:27:41,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 774502 states, 774494 states have (on average 5.855407530594168) internal successors, (4534978), 774501 states have internal predecessors, (4534978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:27:41,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-02-10 23:27:41,938 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:27:41,938 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:27:41,938 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:27:41,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:27:41,939 INFO L85 PathProgramCache]: Analyzing trace with hash -543325312, now seen corresponding path program 1 times [2022-02-10 23:27:41,939 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:27:41,939 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103920121] [2022-02-10 23:27:41,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:27:41,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:27:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:27:41,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:27:41,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:27:41,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103920121] [2022-02-10 23:27:41,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103920121] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:27:41,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:27:41,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 23:27:41,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321180412] [2022-02-10 23:27:41,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:27:41,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 23:27:41,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:27:41,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 23:27:41,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:27:45,780 INFO L87 Difference]: Start difference. First operand has 774502 states, 774494 states have (on average 5.855407530594168) internal successors, (4534978), 774501 states have internal predecessors, (4534978), 0 states have call successors, (0), 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 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)