/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-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 14:53:34,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 14:53:34,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 14:53:34,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 14:53:34,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 14:53:34,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 14:53:34,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 14:53:34,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 14:53:34,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 14:53:34,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 14:53:34,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 14:53:34,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 14:53:34,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 14:53:34,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 14:53:34,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 14:53:34,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 14:53:34,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 14:53:34,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 14:53:34,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 14:53:34,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 14:53:34,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 14:53:34,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 14:53:34,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 14:53:34,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 14:53:34,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-16 14:53:34,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-16 14:53:34,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-16 14:53:34,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-16 14:53:34,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-16 14:53:34,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-16 14:53:34,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-16 14:53:34,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-16 14:53:34,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-16 14:53:34,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-16 14:53:34,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-16 14:53:34,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-16 14:53:34,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-16 14:53:34,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-16 14:53:34,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 14:53:34,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 14:53:34,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 14:53:34,487 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-Delay.epf [2021-06-16 14:53:34,537 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 14:53:34,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 14:53:34,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 14:53:34,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 14:53:34,539 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 14:53:34,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 14:53:34,540 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 14:53:34,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 14:53:34,540 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 14:53:34,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 14:53:34,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 14:53:34,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 14:53:34,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 14:53:34,541 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 14:53:34,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 14:53:34,541 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 14:53:34,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 14:53:34,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 14:53:34,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 14:53:34,542 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 14:53:34,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 14:53:34,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 14:53:34,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 14:53:34,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 14:53:34,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 14:53:34,543 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 14:53:34,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 14:53:34,543 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 14:53:34,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 14:53:34,543 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-16 14:53:34,543 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 14:53:34,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 14:53:34,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 14:53:34,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 14:53:34,788 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-16 14:53:34,789 INFO L275 PluginConnector]: CDTParser initialized [2021-06-16 14:53:34,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2021-06-16 14:53:34,836 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/981f33bf2/b58bcd3ad84e45fd87bb580055903966/FLAG374dd288d [2021-06-16 14:53:35,178 INFO L306 CDTParser]: Found 1 translation units. [2021-06-16 14:53:35,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2021-06-16 14:53:35,190 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/981f33bf2/b58bcd3ad84e45fd87bb580055903966/FLAG374dd288d [2021-06-16 14:53:35,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/981f33bf2/b58bcd3ad84e45fd87bb580055903966 [2021-06-16 14:53:35,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 14:53:35,559 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-16 14:53:35,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-16 14:53:35,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-16 14:53:35,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-16 14:53:35,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 02:53:35" (1/1) ... [2021-06-16 14:53:35,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@638ab4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:53:35, skipping insertion in model container [2021-06-16 14:53:35,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 02:53:35" (1/1) ... [2021-06-16 14:53:35,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-16 14:53:35,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-16 14:53:35,820 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2021-06-16 14:53:35,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 14:53:35,831 INFO L203 MainTranslator]: Completed pre-run [2021-06-16 14:53:35,869 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2021-06-16 14:53:35,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 14:53:35,910 INFO L208 MainTranslator]: Completed translation [2021-06-16 14:53:35,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:53:35 WrapperNode [2021-06-16 14:53:35,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-16 14:53:35,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 14:53:35,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 14:53:35,911 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 14:53:35,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:53:35" (1/1) ... [2021-06-16 14:53:35,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:53:35" (1/1) ... [2021-06-16 14:53:35,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 14:53:35,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 14:53:35,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 14:53:35,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 14:53:35,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:53:35" (1/1) ... [2021-06-16 14:53:35,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:53:35" (1/1) ... [2021-06-16 14:53:35,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:53:35" (1/1) ... [2021-06-16 14:53:35,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:53:35" (1/1) ... [2021-06-16 14:53:35,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:53:35" (1/1) ... [2021-06-16 14:53:35,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:53:35" (1/1) ... [2021-06-16 14:53:35,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:53:35" (1/1) ... [2021-06-16 14:53:35,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 14:53:35,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 14:53:35,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 14:53:35,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 14:53:35,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:53:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 14:53:36,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-16 14:53:36,018 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-16 14:53:36,018 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-16 14:53:36,018 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-16 14:53:36,019 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-16 14:53:36,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-16 14:53:36,019 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-16 14:53:36,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-16 14:53:36,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-16 14:53:36,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-16 14:53:36,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 14:53:36,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 14:53:36,021 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 14:53:36,379 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 14:53:36,379 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-16 14:53:36,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 02:53:36 BoogieIcfgContainer [2021-06-16 14:53:36,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 14:53:36,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 14:53:36,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 14:53:36,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 14:53:36,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.06 02:53:35" (1/3) ... [2021-06-16 14:53:36,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46afbd24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 02:53:36, skipping insertion in model container [2021-06-16 14:53:36,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:53:35" (2/3) ... [2021-06-16 14:53:36,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46afbd24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 02:53:36, skipping insertion in model container [2021-06-16 14:53:36,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 02:53:36" (3/3) ... [2021-06-16 14:53:36,386 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2021-06-16 14:53:36,389 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 14:53:36,389 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 14:53:36,390 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 14:53:36,390 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 14:53:36,420 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,420 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,421 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,421 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,421 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,421 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,421 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,421 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,421 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,421 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,422 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,422 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,422 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,422 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,422 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,422 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,422 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,422 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,423 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,423 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,423 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,423 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,423 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,423 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,423 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,423 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,424 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,424 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,424 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,424 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,424 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,424 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,424 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,425 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,425 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,425 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,425 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,425 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,425 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,425 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,425 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,425 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,426 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,426 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,426 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,426 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,426 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,426 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,426 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,427 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,427 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,427 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,428 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,428 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,428 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,428 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,429 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,429 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,432 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,432 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,432 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,432 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,432 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,432 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,432 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,433 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:53:36,438 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-16 14:53:36,451 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-16 14:53:36,462 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 14:53:36,463 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 14:53:36,463 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 14:53:36,463 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 14:53:36,463 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 14:53:36,463 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 14:53:36,463 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 14:53:36,463 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 14:53:36,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 994 states, 913 states have (on average 1.3702081051478643) internal successors, (1251), 993 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:53:36,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-16 14:53:36,620 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:53:36,621 INFO L472 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, 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, 1, 1, 1] [2021-06-16 14:53:36,621 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:53:36,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:53:36,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1124209509, now seen corresponding path program 1 times [2021-06-16 14:53:36,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:53:36,630 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175538725] [2021-06-16 14:53:36,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:53:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:53:36,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:53:36,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:53:36,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:53:36,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 14:53:36,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:53:36,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:53:36,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:53:36,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:53:36,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175538725] [2021-06-16 14:53:36,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175538725] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:53:36,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:53:36,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-16 14:53:36,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727809463] [2021-06-16 14:53:36,840 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-16 14:53:36,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:53:36,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-16 14:53:36,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-16 14:53:36,857 INFO L87 Difference]: Start difference. First operand has 994 states, 913 states have (on average 1.3702081051478643) internal successors, (1251), 993 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:53:36,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:53:36,916 INFO L93 Difference]: Finished difference Result 753 states and 817 transitions. [2021-06-16 14:53:36,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 14:53:36,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2021-06-16 14:53:36,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:53:36,925 INFO L225 Difference]: With dead ends: 753 [2021-06-16 14:53:36,926 INFO L226 Difference]: Without dead ends: 151 [2021-06-16 14:53:36,926 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-16 14:53:36,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-06-16 14:53:36,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2021-06-16 14:53:36,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 150 states have (on average 1.1133333333333333) internal successors, (167), 150 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:53:36,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 167 transitions. [2021-06-16 14:53:36,962 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 167 transitions. Word has length 75 [2021-06-16 14:53:36,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:53:36,963 INFO L482 AbstractCegarLoop]: Abstraction has 151 states and 167 transitions. [2021-06-16 14:53:36,963 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:53:36,963 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 167 transitions. [2021-06-16 14:53:36,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-16 14:53:36,966 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:53:36,966 INFO L472 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, 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, 1, 1, 1] [2021-06-16 14:53:36,966 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 14:53:36,966 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:53:36,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:53:36,969 INFO L82 PathProgramCache]: Analyzing trace with hash -959780963, now seen corresponding path program 2 times [2021-06-16 14:53:36,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:53:36,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721070096] [2021-06-16 14:53:36,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:53:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:53:37,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:53:37,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:53:37,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:53:37,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 14:53:37,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:53:37,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:53:37,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:53:37,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:53:37,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:53:37,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:53:37,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:53:37,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-16 14:53:37,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:53:37,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:53:37,314 INFO L142 QuantifierPusher]: treesize reduction 7, result has 96.9 percent of original size [2021-06-16 14:53:37,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 218 [2021-06-16 14:53:37,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:53:37,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:53:37,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:53:37,385 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:53:37,385 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721070096] [2021-06-16 14:53:37,385 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721070096] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:53:37,385 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:53:37,385 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-16 14:53:37,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744855704] [2021-06-16 14:53:37,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-16 14:53:37,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:53:37,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-16 14:53:37,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-06-16 14:53:37,387 INFO L87 Difference]: Start difference. First operand 151 states and 167 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:53:37,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:53:37,555 INFO L93 Difference]: Finished difference Result 151 states and 166 transitions. [2021-06-16 14:53:37,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 14:53:37,556 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2021-06-16 14:53:37,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:53:37,559 INFO L225 Difference]: With dead ends: 151 [2021-06-16 14:53:37,559 INFO L226 Difference]: Without dead ends: 148 [2021-06-16 14:53:37,560 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 196.9ms TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-06-16 14:53:37,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-06-16 14:53:37,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-06-16 14:53:37,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 147 states have (on average 1.1088435374149659) internal successors, (163), 147 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:53:37,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 163 transitions. [2021-06-16 14:53:37,577 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 163 transitions. Word has length 75 [2021-06-16 14:53:37,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:53:37,578 INFO L482 AbstractCegarLoop]: Abstraction has 148 states and 163 transitions. [2021-06-16 14:53:37,578 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:53:37,578 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 163 transitions. [2021-06-16 14:53:37,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-16 14:53:37,579 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:53:37,579 INFO L472 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, 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, 1, 1, 1] [2021-06-16 14:53:37,579 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 14:53:37,579 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:53:37,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:53:37,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1847254853, now seen corresponding path program 1 times [2021-06-16 14:53:37,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:53:37,580 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231274310] [2021-06-16 14:53:37,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:53:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-16 14:53:37,630 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-16 14:53:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-16 14:53:37,648 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-16 14:53:37,674 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-16 14:53:37,674 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-16 14:53:37,674 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-16 14:53:37,676 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 14:53:37,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 02:53:37 BasicIcfg [2021-06-16 14:53:37,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 14:53:37,731 INFO L168 Benchmark]: Toolchain (without parser) took 2172.53 ms. Allocated memory was 205.5 MB in the beginning and 259.0 MB in the end (delta: 53.5 MB). Free memory was 168.3 MB in the beginning and 209.7 MB in the end (delta: -41.5 MB). Peak memory consumption was 12.4 MB. Max. memory is 8.0 GB. [2021-06-16 14:53:37,732 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 205.5 MB. Free memory is still 185.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 14:53:37,732 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.40 ms. Allocated memory is still 205.5 MB. Free memory was 168.1 MB in the beginning and 167.9 MB in the end (delta: 213.0 kB). Peak memory consumption was 13.3 MB. Max. memory is 8.0 GB. [2021-06-16 14:53:37,736 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.29 ms. Allocated memory is still 205.5 MB. Free memory was 167.9 MB in the beginning and 165.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-16 14:53:37,737 INFO L168 Benchmark]: Boogie Preprocessor took 12.81 ms. Allocated memory is still 205.5 MB. Free memory was 165.8 MB in the beginning and 164.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-16 14:53:37,737 INFO L168 Benchmark]: RCFGBuilder took 430.41 ms. Allocated memory is still 205.5 MB. Free memory was 164.2 MB in the beginning and 140.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-06-16 14:53:37,742 INFO L168 Benchmark]: TraceAbstraction took 1349.22 ms. Allocated memory was 205.5 MB in the beginning and 259.0 MB in the end (delta: 53.5 MB). Free memory was 139.6 MB in the beginning and 209.7 MB in the end (delta: -70.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 14:53:37,748 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 205.5 MB. Free memory is still 185.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 348.40 ms. Allocated memory is still 205.5 MB. Free memory was 168.1 MB in the beginning and 167.9 MB in the end (delta: 213.0 kB). Peak memory consumption was 13.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 25.29 ms. Allocated memory is still 205.5 MB. Free memory was 167.9 MB in the beginning and 165.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.81 ms. Allocated memory is still 205.5 MB. Free memory was 165.8 MB in the beginning and 164.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 430.41 ms. Allocated memory is still 205.5 MB. Free memory was 164.2 MB in the beginning and 140.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1349.22 ms. Allocated memory was 205.5 MB in the beginning and 259.0 MB in the end (delta: 53.5 MB). Free memory was 139.6 MB in the beginning and 209.7 MB in the end (delta: -70.2 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1597, positive: 1546, positive conditional: 1546, positive unconditional: 0, negative: 51, negative conditional: 51, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1595, positive: 1546, positive conditional: 0, positive unconditional: 1546, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 455, positive: 442, positive conditional: 0, positive unconditional: 442, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 455, positive: 434, positive conditional: 0, positive unconditional: 434, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 21, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 35, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1595, positive: 1104, positive conditional: 0, positive unconditional: 1104, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 455, unknown conditional: 0, unknown unconditional: 455] , Statistics on independence cache: Total cache size (in pairs): 455, Positive cache size: 442, Positive conditional cache size: 0, Positive unconditional cache size: 442, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Independence queries for same thread: 2 - CounterExampleResult [Line: 727]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L692] 0 pthread_mutex_t ma, mb; VAL [ma={7:0}, mb={9:0}] [L693] 0 int data1, data2; VAL [data1=0, data2=0, ma={7:0}, mb={9:0}] [L716] 0 pthread_t t1, t2; VAL [data1=0, data2=0, ma={7:0}, mb={9:0}] [L719] 0 data1 = 10 VAL [data1=10, data2=0, ma={7:0}, mb={9:0}] [L720] 0 data2 = 10 VAL [data1=10, data2=10, ma={7:0}, mb={9:0}] [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data1=10, data2=10, ma={7:0}, mb={9:0}] [L697] 1 data1++ VAL [arg={0:0}, arg={0:0}, data1=11, data2=10, ma={7:0}, mb={9:0}] [L700] 1 data2++ VAL [arg={0:0}, arg={0:0}, data1=11, data2=11, ma={7:0}, mb={9:0}] [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={7:0}, mb={9:0}] [L723] 0 \read(t1) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={7:0}, mb={9:0}] [L707] 2 data1+=5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=11, ma={7:0}, mb={9:0}] [L710] 2 data2-=6 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={7:0}, mb={9:0}] [L702] 1 return 0; VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={7:0}, mb={9:0}] [L712] 2 return 0; VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={7:0}, mb={9:0}] [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={7:0}, mb={9:0}] [L724] 0 \read(t2) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={7:0}, mb={9:0}] [L724] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={7:0}, mb={9:0}] [L725] COND TRUE 0 data1==16 && data2==5 VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={7:0}, mb={9:0}] [L727] 0 reach_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={7:0}, mb={9:0}] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 117 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1213.9ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 18.6ms, AutomataDifference: 259.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 141.5ms, PartialOrderReductionTime: 131.8ms, HoareTripleCheckerStatistics: 159 SDtfs, 73 SDslu, 384 SDs, 0 SdLazy, 102 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 78.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 204.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=994occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 43.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.2ms SsaConstructionTime, 159.0ms SatisfiabilityAnalysisTime, 437.5ms InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 901 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...