/usr/bin/java -Xmx8000000000 -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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 15:49:02,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 15:49:02,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 15:49:02,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 15:49:02,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 15:49:02,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 15:49:02,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 15:49:02,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 15:49:02,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 15:49:02,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 15:49:02,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 15:49:02,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 15:49:02,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 15:49:02,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 15:49:02,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 15:49:02,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 15:49:02,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 15:49:02,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 15:49:02,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 15:49:02,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 15:49:02,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 15:49:02,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 15:49:02,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 15:49:02,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 15:49:02,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 15:49:02,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 15:49:02,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 15:49:02,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 15:49:02,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 15:49:02,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 15:49:02,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 15:49:02,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 15:49:02,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 15:49:02,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 15:49:02,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 15:49:02,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 15:49:02,506 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-SemanticLbe.epf [2019-12-18 15:49:02,536 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 15:49:02,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 15:49:02,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 15:49:02,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 15:49:02,545 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 15:49:02,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 15:49:02,546 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 15:49:02,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 15:49:02,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 15:49:02,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 15:49:02,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 15:49:02,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 15:49:02,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 15:49:02,549 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 15:49:02,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 15:49:02,549 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 15:49:02,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 15:49:02,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 15:49:02,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 15:49:02,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 15:49:02,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 15:49:02,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 15:49:02,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 15:49:02,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 15:49:02,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 15:49:02,551 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 15:49:02,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 15:49:02,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 15:49:02,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 15:49:02,813 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 15:49:02,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 15:49:02,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 15:49:02,834 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 15:49:02,835 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 15:49:02,835 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2019-12-18 15:49:02,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c08d19dfc/f2fa2a163a2f4d1982b43c0b61df331b/FLAGead12338f [2019-12-18 15:49:03,477 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 15:49:03,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2019-12-18 15:49:03,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c08d19dfc/f2fa2a163a2f4d1982b43c0b61df331b/FLAGead12338f [2019-12-18 15:49:03,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c08d19dfc/f2fa2a163a2f4d1982b43c0b61df331b [2019-12-18 15:49:03,722 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 15:49:03,724 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 15:49:03,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 15:49:03,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 15:49:03,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 15:49:03,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:49:03" (1/1) ... [2019-12-18 15:49:03,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c98fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:49:03, skipping insertion in model container [2019-12-18 15:49:03,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:49:03" (1/1) ... [2019-12-18 15:49:03,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 15:49:03,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 15:49:04,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:49:04,355 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 15:49:04,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:49:04,479 INFO L208 MainTranslator]: Completed translation [2019-12-18 15:49:04,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:49:04 WrapperNode [2019-12-18 15:49:04,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 15:49:04,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 15:49:04,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 15:49:04,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 15:49:04,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:49:04" (1/1) ... [2019-12-18 15:49:04,506 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:49:04" (1/1) ... [2019-12-18 15:49:04,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 15:49:04,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 15:49:04,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 15:49:04,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 15:49:04,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:49:04" (1/1) ... [2019-12-18 15:49:04,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:49:04" (1/1) ... [2019-12-18 15:49:04,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:49:04" (1/1) ... [2019-12-18 15:49:04,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:49:04" (1/1) ... [2019-12-18 15:49:04,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:49:04" (1/1) ... [2019-12-18 15:49:04,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:49:04" (1/1) ... [2019-12-18 15:49:04,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:49:04" (1/1) ... [2019-12-18 15:49:04,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 15:49:04,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 15:49:04,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 15:49:04,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 15:49:04,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:49:04" (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 [2019-12-18 15:49:04,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-18 15:49:04,628 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-18 15:49:04,628 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-18 15:49:04,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 15:49:04,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 15:49:04,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 15:49:04,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-18 15:49:04,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 15:49:04,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 15:49:04,631 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 15:49:04,829 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 15:49:04,832 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2019-12-18 15:49:04,842 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 15:49:04,850 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-12-18 15:49:04,971 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 15:49:04,973 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 15:49:05,060 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 15:49:05,060 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 15:49:05,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:49:05 BoogieIcfgContainer [2019-12-18 15:49:05,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 15:49:05,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 15:49:05,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 15:49:05,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 15:49:05,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 03:49:03" (1/3) ... [2019-12-18 15:49:05,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b922986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:49:05, skipping insertion in model container [2019-12-18 15:49:05,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:49:04" (2/3) ... [2019-12-18 15:49:05,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b922986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:49:05, skipping insertion in model container [2019-12-18 15:49:05,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:49:05" (3/3) ... [2019-12-18 15:49:05,070 INFO L109 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2019-12-18 15:49:05,080 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 15:49:05,081 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 15:49:05,088 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-18 15:49:05,090 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 15:49:05,115 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,115 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,115 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,116 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,116 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,116 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,116 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,116 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,117 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,117 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,117 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,118 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,118 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,118 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,119 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,119 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,119 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,120 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,120 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,121 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,121 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,121 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,122 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,122 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,123 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,123 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,131 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,134 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,134 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,135 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,135 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,135 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,135 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,136 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,136 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,136 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,136 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,136 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,137 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,137 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:05,160 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 15:49:05,177 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:49:05,178 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:49:05,178 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:49:05,178 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:49:05,178 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:49:05,178 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:49:05,178 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:49:05,178 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:49:05,190 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 50 transitions [2019-12-18 15:49:05,192 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 50 places, 50 transitions [2019-12-18 15:49:05,227 INFO L126 PetriNetUnfolder]: 4/49 cut-off events. [2019-12-18 15:49:05,227 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:49:05,234 INFO L76 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 49 events. 4/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs. 3/46 useless extension candidates. Maximal degree in co-relation 34. Up to 3 conditions per place. [2019-12-18 15:49:05,239 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 50 places, 50 transitions [2019-12-18 15:49:05,254 INFO L126 PetriNetUnfolder]: 4/49 cut-off events. [2019-12-18 15:49:05,255 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:49:05,256 INFO L76 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 49 events. 4/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs. 3/46 useless extension candidates. Maximal degree in co-relation 34. Up to 3 conditions per place. [2019-12-18 15:49:05,258 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 546 [2019-12-18 15:49:05,260 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:49:07,538 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2019-12-18 15:49:07,642 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1812 [2019-12-18 15:49:07,643 INFO L214 etLargeBlockEncoding]: Total number of compositions: 43 [2019-12-18 15:49:07,646 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 20 transitions [2019-12-18 15:49:07,657 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 66 states. [2019-12-18 15:49:07,660 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2019-12-18 15:49:07,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-18 15:49:07,666 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:49:07,667 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-18 15:49:07,668 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:49:07,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:49:07,674 INFO L82 PathProgramCache]: Analyzing trace with hash 195273394, now seen corresponding path program 1 times [2019-12-18 15:49:07,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:49:07,683 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832239391] [2019-12-18 15:49:07,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:49:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:49:07,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:49:07,847 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832239391] [2019-12-18 15:49:07,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:49:07,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:49:07,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843086128] [2019-12-18 15:49:07,853 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:49:07,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:49:07,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:49:07,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:49:07,871 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 3 states. [2019-12-18 15:49:07,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:49:07,902 INFO L93 Difference]: Finished difference Result 66 states and 122 transitions. [2019-12-18 15:49:07,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:49:07,903 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-18 15:49:07,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:49:07,914 INFO L225 Difference]: With dead ends: 66 [2019-12-18 15:49:07,915 INFO L226 Difference]: Without dead ends: 58 [2019-12-18 15:49:07,916 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:49:07,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-12-18 15:49:07,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2019-12-18 15:49:07,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-12-18 15:49:07,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 104 transitions. [2019-12-18 15:49:07,957 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 104 transitions. Word has length 5 [2019-12-18 15:49:07,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:49:07,958 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 104 transitions. [2019-12-18 15:49:07,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:49:07,958 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 104 transitions. [2019-12-18 15:49:07,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-18 15:49:07,959 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:49:07,959 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-18 15:49:07,959 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:49:07,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:49:07,960 INFO L82 PathProgramCache]: Analyzing trace with hash 195298719, now seen corresponding path program 1 times [2019-12-18 15:49:07,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:49:07,960 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505263743] [2019-12-18 15:49:07,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:49:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:49:08,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:49:08,044 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505263743] [2019-12-18 15:49:08,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:49:08,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:49:08,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007137661] [2019-12-18 15:49:08,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:49:08,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:49:08,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:49:08,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:49:08,048 INFO L87 Difference]: Start difference. First operand 58 states and 104 transitions. Second operand 3 states. [2019-12-18 15:49:08,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:49:08,091 INFO L93 Difference]: Finished difference Result 64 states and 105 transitions. [2019-12-18 15:49:08,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:49:08,092 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-18 15:49:08,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:49:08,093 INFO L225 Difference]: With dead ends: 64 [2019-12-18 15:49:08,095 INFO L226 Difference]: Without dead ends: 58 [2019-12-18 15:49:08,096 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:49:08,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-12-18 15:49:08,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 52. [2019-12-18 15:49:08,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-12-18 15:49:08,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 89 transitions. [2019-12-18 15:49:08,113 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 89 transitions. Word has length 5 [2019-12-18 15:49:08,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:49:08,113 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 89 transitions. [2019-12-18 15:49:08,113 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:49:08,114 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 89 transitions. [2019-12-18 15:49:08,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-18 15:49:08,115 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:49:08,115 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:49:08,115 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:49:08,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:49:08,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1344000906, now seen corresponding path program 1 times [2019-12-18 15:49:08,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:49:08,116 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033847693] [2019-12-18 15:49:08,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:49:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:49:08,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:49:08,209 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033847693] [2019-12-18 15:49:08,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:49:08,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:49:08,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097685805] [2019-12-18 15:49:08,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:49:08,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:49:08,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:49:08,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:49:08,211 INFO L87 Difference]: Start difference. First operand 52 states and 89 transitions. Second operand 3 states. [2019-12-18 15:49:08,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:49:08,225 INFO L93 Difference]: Finished difference Result 50 states and 80 transitions. [2019-12-18 15:49:08,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:49:08,225 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-18 15:49:08,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:49:08,226 INFO L225 Difference]: With dead ends: 50 [2019-12-18 15:49:08,226 INFO L226 Difference]: Without dead ends: 30 [2019-12-18 15:49:08,227 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:49:08,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-18 15:49:08,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-18 15:49:08,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-18 15:49:08,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-12-18 15:49:08,232 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 7 [2019-12-18 15:49:08,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:49:08,232 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-12-18 15:49:08,232 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:49:08,232 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2019-12-18 15:49:08,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 15:49:08,233 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:49:08,233 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:49:08,233 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:49:08,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:49:08,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1200314283, now seen corresponding path program 1 times [2019-12-18 15:49:08,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:49:08,234 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749533998] [2019-12-18 15:49:08,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:49:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:49:08,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:49:08,280 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749533998] [2019-12-18 15:49:08,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:49:08,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:49:08,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601942737] [2019-12-18 15:49:08,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:49:08,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:49:08,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:49:08,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:49:08,282 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 3 states. [2019-12-18 15:49:08,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:49:08,289 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2019-12-18 15:49:08,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:49:08,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 15:49:08,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:49:08,290 INFO L225 Difference]: With dead ends: 30 [2019-12-18 15:49:08,291 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 15:49:08,291 INFO L631 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 [2019-12-18 15:49:08,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 15:49:08,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 15:49:08,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 15:49:08,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2019-12-18 15:49:08,296 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 9 [2019-12-18 15:49:08,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:49:08,296 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2019-12-18 15:49:08,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:49:08,296 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2019-12-18 15:49:08,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 15:49:08,297 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:49:08,297 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:49:08,297 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:49:08,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:49:08,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1222232862, now seen corresponding path program 1 times [2019-12-18 15:49:08,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:49:08,298 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085307125] [2019-12-18 15:49:08,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:49:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:49:08,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:49:08,369 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085307125] [2019-12-18 15:49:08,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:49:08,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:49:08,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838063115] [2019-12-18 15:49:08,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:49:08,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:49:08,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:49:08,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:49:08,371 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand 3 states. [2019-12-18 15:49:08,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:49:08,381 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-12-18 15:49:08,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:49:08,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 15:49:08,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:49:08,382 INFO L225 Difference]: With dead ends: 9 [2019-12-18 15:49:08,382 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 15:49:08,383 INFO L631 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 [2019-12-18 15:49:08,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 15:49:08,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 15:49:08,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 15:49:08,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 15:49:08,384 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-12-18 15:49:08,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:49:08,384 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 15:49:08,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:49:08,384 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 15:49:08,384 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 15:49:08,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 03:49:08 BasicIcfg [2019-12-18 15:49:08,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 15:49:08,389 INFO L168 Benchmark]: Toolchain (without parser) took 4666.20 ms. Allocated memory was 138.4 MB in the beginning and 249.0 MB in the end (delta: 110.6 MB). Free memory was 101.8 MB in the beginning and 167.2 MB in the end (delta: -65.4 MB). Peak memory consumption was 45.2 MB. Max. memory is 7.1 GB. [2019-12-18 15:49:08,390 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 138.4 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-18 15:49:08,391 INFO L168 Benchmark]: CACSL2BoogieTranslator took 755.48 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 101.6 MB in the beginning and 163.0 MB in the end (delta: -61.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-12-18 15:49:08,392 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.48 ms. Allocated memory is still 203.4 MB. Free memory was 163.0 MB in the beginning and 161.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 15:49:08,393 INFO L168 Benchmark]: Boogie Preprocessor took 40.25 ms. Allocated memory is still 203.4 MB. Free memory was 161.0 MB in the beginning and 159.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-18 15:49:08,394 INFO L168 Benchmark]: RCFGBuilder took 488.97 ms. Allocated memory is still 203.4 MB. Free memory was 159.6 MB in the beginning and 137.3 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2019-12-18 15:49:08,395 INFO L168 Benchmark]: TraceAbstraction took 3324.91 ms. Allocated memory was 203.4 MB in the beginning and 249.0 MB in the end (delta: 45.6 MB). Free memory was 137.3 MB in the beginning and 167.2 MB in the end (delta: -29.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2019-12-18 15:49:08,400 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 138.4 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 755.48 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 101.6 MB in the beginning and 163.0 MB in the end (delta: -61.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.48 ms. Allocated memory is still 203.4 MB. Free memory was 163.0 MB in the beginning and 161.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.25 ms. Allocated memory is still 203.4 MB. Free memory was 161.0 MB in the beginning and 159.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 488.97 ms. Allocated memory is still 203.4 MB. Free memory was 159.6 MB in the beginning and 137.3 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3324.91 ms. Allocated memory was 203.4 MB in the beginning and 249.0 MB in the end (delta: 45.6 MB). Free memory was 137.3 MB in the beginning and 167.2 MB in the end (delta: -29.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.4s, 50 ProgramPointsBefore, 19 ProgramPointsAfterwards, 50 TransitionsBefore, 20 TransitionsAfterwards, 546 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 277 VarBasedMoverChecksPositive, 77 VarBasedMoverChecksNegative, 61 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.8s, 0 MoverChecksTotal, 1812 CheckedPairsTotal, 43 TotalNumberOfCompositions - PositiveResult [Line: 699]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 708]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 2 error locations. Result: SAFE, OverallTime: 3.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 78 SDtfs, 38 SDslu, 32 SDs, 0 SdLazy, 20 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred 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, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 312 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...