/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread/lazy01.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 16:27:56,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 16:27:56,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 16:27:56,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 16:27:56,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 16:27:56,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 16:27:56,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 16:27:56,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 16:27:56,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 16:27:56,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 16:27:56,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 16:27:56,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 16:27:56,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 16:27:56,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 16:27:56,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 16:27:56,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 16:27:56,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 16:27:56,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 16:27:56,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 16:27:56,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 16:27:56,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 16:27:56,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 16:27:56,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 16:27:56,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 16:27:56,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 16:27:56,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 16:27:56,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 16:27:56,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 16:27:56,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 16:27:56,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 16:27:56,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 16:27:56,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 16:27:56,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 16:27:56,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 16:27:56,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 16:27:56,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 16:27:56,215 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 16:27:56,268 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 16:27:56,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 16:27:56,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 16:27:56,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 16:27:56,271 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 16:27:56,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 16:27:56,272 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 16:27:56,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 16:27:56,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 16:27:56,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 16:27:56,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 16:27:56,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 16:27:56,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 16:27:56,273 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 16:27:56,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 16:27:56,273 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 16:27:56,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 16:27:56,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 16:27:56,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 16:27:56,275 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 16:27:56,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 16:27:56,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 16:27:56,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 16:27:56,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 16:27:56,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 16:27:56,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 16:27:56,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 16:27:56,277 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 16:27:56,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 16:27:56,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 16:27:56,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 16:27:56,649 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 16:27:56,653 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 16:27:56,655 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 16:27:56,655 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 16:27:56,656 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01.i [2020-10-15 16:27:56,730 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cedc088c/3132065358db425eabf65f100e90c70c/FLAG27ed6372b [2020-10-15 16:27:57,292 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 16:27:57,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i [2020-10-15 16:27:57,307 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cedc088c/3132065358db425eabf65f100e90c70c/FLAG27ed6372b [2020-10-15 16:27:57,595 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cedc088c/3132065358db425eabf65f100e90c70c [2020-10-15 16:27:57,605 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 16:27:57,607 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 16:27:57,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 16:27:57,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 16:27:57,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 16:27:57,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:27:57" (1/1) ... [2020-10-15 16:27:57,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7208f581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:27:57, skipping insertion in model container [2020-10-15 16:27:57,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:27:57" (1/1) ... [2020-10-15 16:27:57,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 16:27:57,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 16:27:58,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 16:27:58,176 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 16:27:58,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 16:27:58,333 INFO L208 MainTranslator]: Completed translation [2020-10-15 16:27:58,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:27:58 WrapperNode [2020-10-15 16:27:58,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 16:27:58,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 16:27:58,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 16:27:58,335 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 16:27:58,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:27:58" (1/1) ... [2020-10-15 16:27:58,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:27:58" (1/1) ... [2020-10-15 16:27:58,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 16:27:58,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 16:27:58,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 16:27:58,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 16:27:58,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:27:58" (1/1) ... [2020-10-15 16:27:58,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:27:58" (1/1) ... [2020-10-15 16:27:58,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:27:58" (1/1) ... [2020-10-15 16:27:58,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:27:58" (1/1) ... [2020-10-15 16:27:58,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:27:58" (1/1) ... [2020-10-15 16:27:58,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:27:58" (1/1) ... [2020-10-15 16:27:58,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:27:58" (1/1) ... [2020-10-15 16:27:58,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 16:27:58,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 16:27:58,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 16:27:58,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 16:27:58,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:27:58" (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 [2020-10-15 16:27:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 16:27:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-15 16:27:58,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-15 16:27:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-15 16:27:58,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-15 16:27:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-10-15 16:27:58,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-10-15 16:27:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 16:27:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-15 16:27:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 16:27:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 16:27:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 16:27:58,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 16:27:58,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 16:27:58,491 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 16:27:58,856 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 16:27:58,856 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-15 16:27:58,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:27:58 BoogieIcfgContainer [2020-10-15 16:27:58,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 16:27:58,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 16:27:58,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 16:27:58,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 16:27:58,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:27:57" (1/3) ... [2020-10-15 16:27:58,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600af1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:27:58, skipping insertion in model container [2020-10-15 16:27:58,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:27:58" (2/3) ... [2020-10-15 16:27:58,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600af1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:27:58, skipping insertion in model container [2020-10-15 16:27:58,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:27:58" (3/3) ... [2020-10-15 16:27:58,875 INFO L111 eAbstractionObserver]: Analyzing ICFG lazy01.i [2020-10-15 16:27:58,887 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 16:27:58,888 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 16:27:58,898 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 16:27:58,899 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 16:27:58,933 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,933 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,933 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,934 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,934 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,934 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,935 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,935 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,935 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,936 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,936 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,936 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,937 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,937 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,937 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,937 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,937 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,938 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,938 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,939 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,939 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,939 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,939 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,940 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,940 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,940 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,941 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,949 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,949 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,949 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,949 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,950 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,950 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,957 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,958 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,958 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,958 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,958 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,961 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,961 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,962 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,962 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,962 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:27:58,998 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 16:27:59,018 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 16:27:59,018 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 16:27:59,018 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 16:27:59,019 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 16:27:59,019 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 16:27:59,019 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 16:27:59,019 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 16:27:59,019 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 16:27:59,033 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 16:27:59,036 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 198 flow [2020-10-15 16:27:59,040 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 78 transitions, 198 flow [2020-10-15 16:27:59,042 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 198 flow [2020-10-15 16:27:59,098 INFO L129 PetriNetUnfolder]: 6/86 cut-off events. [2020-10-15 16:27:59,098 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-15 16:27:59,104 INFO L80 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 86 events. 6/86 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 129 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 52. Up to 6 conditions per place. [2020-10-15 16:27:59,107 INFO L117 LiptonReduction]: Number of co-enabled transitions 1116 [2020-10-15 16:28:00,868 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2020-10-15 16:28:00,989 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-15 16:28:01,004 INFO L132 LiptonReduction]: Checked pairs total: 4473 [2020-10-15 16:28:01,004 INFO L134 LiptonReduction]: Total number of compositions: 46 [2020-10-15 16:28:01,015 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 37 transitions, 116 flow [2020-10-15 16:28:01,089 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 492 states. [2020-10-15 16:28:01,092 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states. [2020-10-15 16:28:01,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 16:28:01,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:28:01,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:28:01,125 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:28:01,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:28:01,133 INFO L82 PathProgramCache]: Analyzing trace with hash 835949709, now seen corresponding path program 1 times [2020-10-15 16:28:01,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:28:01,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069798299] [2020-10-15 16:28:01,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:28:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:28:01,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:28:01,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069798299] [2020-10-15 16:28:01,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:28:01,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 16:28:01,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941759203] [2020-10-15 16:28:01,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:28:01,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:28:01,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:28:01,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:28:01,407 INFO L87 Difference]: Start difference. First operand 492 states. Second operand 3 states. [2020-10-15 16:28:01,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:28:01,473 INFO L93 Difference]: Finished difference Result 480 states and 1245 transitions. [2020-10-15 16:28:01,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:28:01,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 16:28:01,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:28:01,493 INFO L225 Difference]: With dead ends: 480 [2020-10-15 16:28:01,493 INFO L226 Difference]: Without dead ends: 250 [2020-10-15 16:28:01,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:28:01,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-10-15 16:28:01,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2020-10-15 16:28:01,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-10-15 16:28:01,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 622 transitions. [2020-10-15 16:28:01,569 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 622 transitions. Word has length 8 [2020-10-15 16:28:01,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:28:01,570 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 622 transitions. [2020-10-15 16:28:01,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:28:01,571 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 622 transitions. [2020-10-15 16:28:01,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 16:28:01,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:28:01,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:28:01,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 16:28:01,574 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:28:01,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:28:01,574 INFO L82 PathProgramCache]: Analyzing trace with hash 188784817, now seen corresponding path program 1 times [2020-10-15 16:28:01,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:28:01,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704844893] [2020-10-15 16:28:01,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:28:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:28:01,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:28:01,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704844893] [2020-10-15 16:28:01,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:28:01,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 16:28:01,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790846050] [2020-10-15 16:28:01,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:28:01,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:28:01,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:28:01,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:28:01,720 INFO L87 Difference]: Start difference. First operand 250 states and 622 transitions. Second operand 3 states. [2020-10-15 16:28:01,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:28:01,745 INFO L93 Difference]: Finished difference Result 142 states and 253 transitions. [2020-10-15 16:28:01,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:28:01,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 16:28:01,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:28:01,747 INFO L225 Difference]: With dead ends: 142 [2020-10-15 16:28:01,748 INFO L226 Difference]: Without dead ends: 140 [2020-10-15 16:28:01,749 INFO L677 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 [2020-10-15 16:28:01,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-15 16:28:01,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-10-15 16:28:01,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-15 16:28:01,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 250 transitions. [2020-10-15 16:28:01,771 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 250 transitions. Word has length 10 [2020-10-15 16:28:01,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:28:01,771 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 250 transitions. [2020-10-15 16:28:01,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:28:01,772 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 250 transitions. [2020-10-15 16:28:01,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 16:28:01,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:28:01,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:28:01,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 16:28:01,773 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:28:01,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:28:01,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1562794345, now seen corresponding path program 1 times [2020-10-15 16:28:01,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:28:01,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081430124] [2020-10-15 16:28:01,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:28:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:28:01,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:28:01,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081430124] [2020-10-15 16:28:01,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:28:01,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 16:28:01,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726554265] [2020-10-15 16:28:01,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 16:28:01,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:28:01,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 16:28:01,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 16:28:01,885 INFO L87 Difference]: Start difference. First operand 140 states and 250 transitions. Second operand 4 states. [2020-10-15 16:28:01,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:28:01,911 INFO L93 Difference]: Finished difference Result 135 states and 241 transitions. [2020-10-15 16:28:01,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 16:28:01,912 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 16:28:01,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:28:01,913 INFO L225 Difference]: With dead ends: 135 [2020-10-15 16:28:01,913 INFO L226 Difference]: Without dead ends: 130 [2020-10-15 16:28:01,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 16:28:01,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-15 16:28:01,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-10-15 16:28:01,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-15 16:28:01,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 232 transitions. [2020-10-15 16:28:01,924 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 232 transitions. Word has length 11 [2020-10-15 16:28:01,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:28:01,925 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 232 transitions. [2020-10-15 16:28:01,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 16:28:01,925 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 232 transitions. [2020-10-15 16:28:01,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 16:28:01,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:28:01,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:28:01,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 16:28:01,927 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:28:01,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:28:01,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1580374126, now seen corresponding path program 1 times [2020-10-15 16:28:01,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:28:01,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828743499] [2020-10-15 16:28:01,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:28:01,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:28:01,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:28:01,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828743499] [2020-10-15 16:28:01,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:28:01,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 16:28:01,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582717573] [2020-10-15 16:28:01,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 16:28:01,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:28:01,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 16:28:01,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 16:28:01,990 INFO L87 Difference]: Start difference. First operand 130 states and 232 transitions. Second operand 5 states. [2020-10-15 16:28:02,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:28:02,031 INFO L93 Difference]: Finished difference Result 125 states and 223 transitions. [2020-10-15 16:28:02,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 16:28:02,032 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-15 16:28:02,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:28:02,033 INFO L225 Difference]: With dead ends: 125 [2020-10-15 16:28:02,033 INFO L226 Difference]: Without dead ends: 120 [2020-10-15 16:28:02,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-15 16:28:02,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-15 16:28:02,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-10-15 16:28:02,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-15 16:28:02,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 214 transitions. [2020-10-15 16:28:02,042 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 214 transitions. Word has length 12 [2020-10-15 16:28:02,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:28:02,043 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 214 transitions. [2020-10-15 16:28:02,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 16:28:02,043 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 214 transitions. [2020-10-15 16:28:02,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 16:28:02,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:28:02,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:28:02,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 16:28:02,045 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:28:02,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:28:02,046 INFO L82 PathProgramCache]: Analyzing trace with hash -500515352, now seen corresponding path program 1 times [2020-10-15 16:28:02,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:28:02,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828984137] [2020-10-15 16:28:02,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:28:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:28:02,087 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:28:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:28:02,127 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:28:02,180 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 16:28:02,180 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 16:28:02,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 16:28:02,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:28:02 BasicIcfg [2020-10-15 16:28:02,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 16:28:02,254 INFO L168 Benchmark]: Toolchain (without parser) took 4647.85 ms. Allocated memory was 250.1 MB in the beginning and 369.6 MB in the end (delta: 119.5 MB). Free memory was 204.6 MB in the beginning and 299.9 MB in the end (delta: -95.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 14.2 GB. [2020-10-15 16:28:02,255 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 250.1 MB. Free memory was 228.1 MB in the beginning and 227.3 MB in the end (delta: 839.1 kB). Peak memory consumption was 839.1 kB. Max. memory is 14.2 GB. [2020-10-15 16:28:02,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 726.53 ms. Allocated memory was 250.1 MB in the beginning and 311.4 MB in the end (delta: 61.3 MB). Free memory was 204.6 MB in the beginning and 265.4 MB in the end (delta: -60.8 MB). Peak memory consumption was 31.0 MB. Max. memory is 14.2 GB. [2020-10-15 16:28:02,257 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.16 ms. Allocated memory is still 311.4 MB. Free memory was 265.4 MB in the beginning and 262.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 16:28:02,258 INFO L168 Benchmark]: Boogie Preprocessor took 31.78 ms. Allocated memory is still 311.4 MB. Free memory was 262.8 MB in the beginning and 261.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 16:28:02,258 INFO L168 Benchmark]: RCFGBuilder took 443.80 ms. Allocated memory is still 311.4 MB. Free memory was 261.2 MB in the beginning and 237.4 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 14.2 GB. [2020-10-15 16:28:02,259 INFO L168 Benchmark]: TraceAbstraction took 3391.96 ms. Allocated memory was 311.4 MB in the beginning and 369.6 MB in the end (delta: 58.2 MB). Free memory was 236.5 MB in the beginning and 299.9 MB in the end (delta: -63.4 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 16:28:02,263 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 250.1 MB. Free memory was 228.1 MB in the beginning and 227.3 MB in the end (delta: 839.1 kB). Peak memory consumption was 839.1 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 726.53 ms. Allocated memory was 250.1 MB in the beginning and 311.4 MB in the end (delta: 61.3 MB). Free memory was 204.6 MB in the beginning and 265.4 MB in the end (delta: -60.8 MB). Peak memory consumption was 31.0 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 47.16 ms. Allocated memory is still 311.4 MB. Free memory was 265.4 MB in the beginning and 262.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 31.78 ms. Allocated memory is still 311.4 MB. Free memory was 262.8 MB in the beginning and 261.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 443.80 ms. Allocated memory is still 311.4 MB. Free memory was 261.2 MB in the beginning and 237.4 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3391.96 ms. Allocated memory was 311.4 MB in the beginning and 369.6 MB in the end (delta: 58.2 MB). Free memory was 236.5 MB in the beginning and 299.9 MB in the end (delta: -63.4 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 784 VarBasedMoverChecksPositive, 46 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 210 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 81 PlacesBefore, 40 PlacesAfterwards, 78 TransitionsBefore, 37 TransitionsAfterwards, 1116 CoEnabledTransitionPairs, 5 FixpointIterations, 24 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 46 TotalNumberOfCompositions, 4473 MoverChecksTotal - CounterExampleResult [Line: 703]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L683] 0 pthread_mutex_t mutex; [L684] 0 int data = 0; [L712] 0 pthread_t t1, t2, t3; [L713] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={6:0}] [L714] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data=0, mutex={6:0}] [L715] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=0, mutex={6:0}] [L688] 1 data++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={6:0}] [L690] 1 return 0; [L695] 2 data+=2 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={6:0}] [L697] 2 return 0; [L702] COND TRUE 3 data >= 3 [L703] 3 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 115 SDtfs, 66 SDslu, 135 SDs, 0 SdLazy, 37 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=492occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 945 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...