/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-NoLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 23:36:34,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 23:36:34,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 23:36:34,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 23:36:34,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 23:36:34,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 23:36:34,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 23:36:34,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 23:36:34,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 23:36:34,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 23:36:34,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 23:36:34,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 23:36:34,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 23:36:34,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 23:36:34,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 23:36:34,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 23:36:34,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 23:36:34,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 23:36:34,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 23:36:34,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 23:36:34,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 23:36:34,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 23:36:34,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 23:36:34,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 23:36:34,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 23:36:34,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 23:36:34,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 23:36:34,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 23:36:34,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 23:36:34,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 23:36:34,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 23:36:34,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 23:36:34,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 23:36:34,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 23:36:34,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 23:36:34,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 23:36:34,146 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf [2019-12-27 23:36:34,161 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 23:36:34,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 23:36:34,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 23:36:34,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 23:36:34,168 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 23:36:34,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 23:36:34,169 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 23:36:34,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 23:36:34,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 23:36:34,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 23:36:34,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 23:36:34,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 23:36:34,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 23:36:34,170 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 23:36:34,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 23:36:34,170 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 23:36:34,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 23:36:34,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 23:36:34,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 23:36:34,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 23:36:34,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 23:36:34,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 23:36:34,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 23:36:34,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 23:36:34,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 23:36:34,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 23:36:34,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 23:36:34,174 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 23:36:34,174 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 23:36:34,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 23:36:34,175 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 23:36:34,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 23:36:34,445 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 23:36:34,468 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 23:36:34,470 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 23:36:34,471 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 23:36:34,472 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 23:36:34,473 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2019-12-27 23:36:34,531 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/810cb0bd1/fb221f303be949df80c2e3d6159540de/FLAG0fa73c82b [2019-12-27 23:36:35,009 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 23:36:35,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2019-12-27 23:36:35,027 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/810cb0bd1/fb221f303be949df80c2e3d6159540de/FLAG0fa73c82b [2019-12-27 23:36:35,353 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/810cb0bd1/fb221f303be949df80c2e3d6159540de [2019-12-27 23:36:35,362 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 23:36:35,364 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 23:36:35,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 23:36:35,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 23:36:35,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 23:36:35,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:36:35" (1/1) ... [2019-12-27 23:36:35,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62bb94cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:35, skipping insertion in model container [2019-12-27 23:36:35,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:36:35" (1/1) ... [2019-12-27 23:36:35,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 23:36:35,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 23:36:35,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 23:36:35,913 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 23:36:35,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 23:36:36,034 INFO L208 MainTranslator]: Completed translation [2019-12-27 23:36:36,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:36 WrapperNode [2019-12-27 23:36:36,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 23:36:36,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 23:36:36,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 23:36:36,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 23:36:36,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:36" (1/1) ... [2019-12-27 23:36:36,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:36" (1/1) ... [2019-12-27 23:36:36,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 23:36:36,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 23:36:36,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 23:36:36,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 23:36:36,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:36" (1/1) ... [2019-12-27 23:36:36,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:36" (1/1) ... [2019-12-27 23:36:36,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:36" (1/1) ... [2019-12-27 23:36:36,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:36" (1/1) ... [2019-12-27 23:36:36,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:36" (1/1) ... [2019-12-27 23:36:36,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:36" (1/1) ... [2019-12-27 23:36:36,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:36" (1/1) ... [2019-12-27 23:36:36,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 23:36:36,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 23:36:36,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 23:36:36,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 23:36:36,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:36" (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 [2019-12-27 23:36:36,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-27 23:36:36,196 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 23:36:36,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 23:36:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 23:36:36,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 23:36:36,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 23:36:36,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-27 23:36:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 23:36:36,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 23:36:36,203 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 23:36:36,468 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-27 23:36:36,470 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2019-12-27 23:36:36,471 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-27 23:36:36,488 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-12-27 23:36:36,609 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-27 23:36:36,610 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-27 23:36:36,689 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 23:36:36,690 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 23:36:36,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:36:36 BoogieIcfgContainer [2019-12-27 23:36:36,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 23:36:36,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 23:36:36,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 23:36:36,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 23:36:36,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 11:36:35" (1/3) ... [2019-12-27 23:36:36,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4340e913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:36:36, skipping insertion in model container [2019-12-27 23:36:36,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:36" (2/3) ... [2019-12-27 23:36:36,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4340e913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:36:36, skipping insertion in model container [2019-12-27 23:36:36,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:36:36" (3/3) ... [2019-12-27 23:36:36,709 INFO L109 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2019-12-27 23:36:36,720 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 23:36:36,720 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 23:36:36,731 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-27 23:36:36,732 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 23:36:36,779 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,782 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,783 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,783 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,783 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,783 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,784 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,784 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,784 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,788 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,788 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,788 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,789 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,789 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,789 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,790 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,790 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,790 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,790 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,794 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,794 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,795 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,795 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,795 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,795 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,796 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,800 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,800 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,801 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,801 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,802 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,802 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,803 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,803 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,803 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,804 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,804 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,805 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,805 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,805 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:36,822 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 23:36:36,845 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 23:36:36,846 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 23:36:36,846 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 23:36:36,846 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 23:36:36,846 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 23:36:36,846 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 23:36:36,847 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 23:36:36,847 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 23:36:36,858 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 50 transitions [2019-12-27 23:36:36,881 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 255 states. [2019-12-27 23:36:36,884 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2019-12-27 23:36:36,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-27 23:36:36,892 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:36:36,894 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:36:36,894 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:36:36,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:36:36,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1261052757, now seen corresponding path program 1 times [2019-12-27 23:36:36,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:36:36,914 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825264155] [2019-12-27 23:36:36,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:36:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:36:37,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 23:36:37,190 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825264155] [2019-12-27 23:36:37,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:36:37,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:36:37,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1518296501] [2019-12-27 23:36:37,193 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:36:37,201 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:36:37,221 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 21 states and 20 transitions. [2019-12-27 23:36:37,222 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:36:37,226 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:36:37,226 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 23:36:37,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:36:37,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 23:36:37,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:36:37,244 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2019-12-27 23:36:37,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:36:37,275 INFO L93 Difference]: Finished difference Result 255 states and 475 transitions. [2019-12-27 23:36:37,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 23:36:37,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-12-27 23:36:37,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:36:37,290 INFO L225 Difference]: With dead ends: 255 [2019-12-27 23:36:37,290 INFO L226 Difference]: Without dead ends: 215 [2019-12-27 23:36:37,292 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 [2019-12-27 23:36:37,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2019-12-27 23:36:37,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2019-12-27 23:36:37,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2019-12-27 23:36:37,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 391 transitions. [2019-12-27 23:36:37,356 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 391 transitions. Word has length 20 [2019-12-27 23:36:37,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:36:37,357 INFO L462 AbstractCegarLoop]: Abstraction has 215 states and 391 transitions. [2019-12-27 23:36:37,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 23:36:37,357 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 391 transitions. [2019-12-27 23:36:37,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 23:36:37,358 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:36:37,359 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:36:37,359 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:36:37,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:36:37,360 INFO L82 PathProgramCache]: Analyzing trace with hash 661339700, now seen corresponding path program 1 times [2019-12-27 23:36:37,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:36:37,360 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182839300] [2019-12-27 23:36:37,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:36:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:36:37,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 23:36:37,426 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182839300] [2019-12-27 23:36:37,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:36:37,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:36:37,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2023099414] [2019-12-27 23:36:37,427 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:36:37,431 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:36:37,435 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 23 states and 22 transitions. [2019-12-27 23:36:37,436 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:36:37,436 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:36:37,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 23:36:37,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:36:37,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 23:36:37,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:36:37,439 INFO L87 Difference]: Start difference. First operand 215 states and 391 transitions. Second operand 3 states. [2019-12-27 23:36:37,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:36:37,491 INFO L93 Difference]: Finished difference Result 226 states and 392 transitions. [2019-12-27 23:36:37,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 23:36:37,495 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-12-27 23:36:37,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:36:37,498 INFO L225 Difference]: With dead ends: 226 [2019-12-27 23:36:37,498 INFO L226 Difference]: Without dead ends: 166 [2019-12-27 23:36:37,501 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 [2019-12-27 23:36:37,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-12-27 23:36:37,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 154. [2019-12-27 23:36:37,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-12-27 23:36:37,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 260 transitions. [2019-12-27 23:36:37,527 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 260 transitions. Word has length 22 [2019-12-27 23:36:37,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:36:37,528 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 260 transitions. [2019-12-27 23:36:37,528 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 23:36:37,528 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 260 transitions. [2019-12-27 23:36:37,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-27 23:36:37,529 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:36:37,529 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:36:37,530 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:36:37,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:36:37,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1608531331, now seen corresponding path program 1 times [2019-12-27 23:36:37,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:36:37,531 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417411726] [2019-12-27 23:36:37,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:36:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:36:37,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 23:36:37,621 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417411726] [2019-12-27 23:36:37,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:36:37,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:36:37,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [331217156] [2019-12-27 23:36:37,621 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:36:37,624 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:36:37,627 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 25 states and 24 transitions. [2019-12-27 23:36:37,627 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:36:37,627 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:36:37,628 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 23:36:37,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:36:37,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 23:36:37,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:36:37,629 INFO L87 Difference]: Start difference. First operand 154 states and 260 transitions. Second operand 3 states. [2019-12-27 23:36:37,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:36:37,653 INFO L93 Difference]: Finished difference Result 142 states and 230 transitions. [2019-12-27 23:36:37,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 23:36:37,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-27 23:36:37,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:36:37,655 INFO L225 Difference]: With dead ends: 142 [2019-12-27 23:36:37,655 INFO L226 Difference]: Without dead ends: 110 [2019-12-27 23:36:37,656 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 [2019-12-27 23:36:37,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-12-27 23:36:37,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-12-27 23:36:37,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-12-27 23:36:37,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 171 transitions. [2019-12-27 23:36:37,665 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 171 transitions. Word has length 24 [2019-12-27 23:36:37,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:36:37,665 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 171 transitions. [2019-12-27 23:36:37,666 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 23:36:37,666 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 171 transitions. [2019-12-27 23:36:37,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-27 23:36:37,667 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:36:37,667 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:36:37,667 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:36:37,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:36:37,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1024871123, now seen corresponding path program 1 times [2019-12-27 23:36:37,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:36:37,669 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504922198] [2019-12-27 23:36:37,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:36:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:36:37,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 23:36:37,768 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504922198] [2019-12-27 23:36:37,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:36:37,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:36:37,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1583556213] [2019-12-27 23:36:37,769 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:36:37,775 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:36:37,783 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 56 states and 80 transitions. [2019-12-27 23:36:37,783 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:36:37,790 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 23:36:37,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 23:36:37,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:36:37,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 23:36:37,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:36:37,791 INFO L87 Difference]: Start difference. First operand 110 states and 171 transitions. Second operand 3 states. [2019-12-27 23:36:37,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:36:37,800 INFO L93 Difference]: Finished difference Result 110 states and 168 transitions. [2019-12-27 23:36:37,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 23:36:37,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-12-27 23:36:37,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:36:37,802 INFO L225 Difference]: With dead ends: 110 [2019-12-27 23:36:37,802 INFO L226 Difference]: Without dead ends: 92 [2019-12-27 23:36:37,803 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:36:37,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-12-27 23:36:37,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2019-12-27 23:36:37,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-12-27 23:36:37,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 135 transitions. [2019-12-27 23:36:37,810 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 135 transitions. Word has length 29 [2019-12-27 23:36:37,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:36:37,811 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 135 transitions. [2019-12-27 23:36:37,811 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 23:36:37,811 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 135 transitions. [2019-12-27 23:36:37,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-27 23:36:37,812 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:36:37,812 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:36:37,813 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:36:37,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:36:37,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1617502025, now seen corresponding path program 1 times [2019-12-27 23:36:37,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:36:37,814 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276941489] [2019-12-27 23:36:37,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:36:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:36:37,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 23:36:37,878 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276941489] [2019-12-27 23:36:37,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:36:37,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 23:36:37,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [203481885] [2019-12-27 23:36:37,879 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:36:37,882 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:36:37,888 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 41 states and 50 transitions. [2019-12-27 23:36:37,888 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:36:37,888 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:36:37,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 23:36:37,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:36:37,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 23:36:37,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 23:36:37,890 INFO L87 Difference]: Start difference. First operand 92 states and 135 transitions. Second operand 4 states. [2019-12-27 23:36:37,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:36:37,926 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2019-12-27 23:36:37,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 23:36:37,926 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-12-27 23:36:37,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:36:37,927 INFO L225 Difference]: With dead ends: 36 [2019-12-27 23:36:37,927 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 23:36:37,927 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 23:36:37,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 23:36:37,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 23:36:37,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 23:36:37,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 23:36:37,928 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2019-12-27 23:36:37,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:36:37,929 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 23:36:37,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 23:36:37,929 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 23:36:37,929 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 23:36:37,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 11:36:37 BasicIcfg [2019-12-27 23:36:37,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 23:36:37,938 INFO L168 Benchmark]: Toolchain (without parser) took 2572.83 ms. Allocated memory was 146.3 MB in the beginning and 235.4 MB in the end (delta: 89.1 MB). Free memory was 102.1 MB in the beginning and 152.5 MB in the end (delta: -50.4 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. [2019-12-27 23:36:37,939 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 23:36:37,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.25 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 101.9 MB in the beginning and 162.2 MB in the end (delta: -60.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-27 23:36:37,940 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.34 ms. Allocated memory is still 203.4 MB. Free memory was 162.2 MB in the beginning and 160.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 23:36:37,941 INFO L168 Benchmark]: Boogie Preprocessor took 29.13 ms. Allocated memory is still 203.4 MB. Free memory was 160.2 MB in the beginning and 158.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 23:36:37,942 INFO L168 Benchmark]: RCFGBuilder took 571.52 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 136.2 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2019-12-27 23:36:37,943 INFO L168 Benchmark]: TraceAbstraction took 1241.00 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 136.2 MB in the beginning and 152.5 MB in the end (delta: -16.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2019-12-27 23:36:37,947 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 669.25 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 101.9 MB in the beginning and 162.2 MB in the end (delta: -60.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.34 ms. Allocated memory is still 203.4 MB. Free memory was 162.2 MB in the beginning and 160.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.13 ms. Allocated memory is still 203.4 MB. Free memory was 160.2 MB in the beginning and 158.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 571.52 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 136.2 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1241.00 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 136.2 MB in the beginning and 152.5 MB in the end (delta: -16.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 233 SDtfs, 120 SDslu, 124 SDs, 0 SdLazy, 23 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=255occurred 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, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 4749 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...