/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-McrStrategy.epf -i ../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 20:10:32,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 20:10:32,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 20:10:32,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 20:10:32,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 20:10:32,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 20:10:32,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 20:10:32,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 20:10:32,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 20:10:32,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 20:10:32,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 20:10:32,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 20:10:32,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 20:10:32,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 20:10:32,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 20:10:32,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 20:10:32,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 20:10:32,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 20:10:32,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 20:10:32,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 20:10:32,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 20:10:32,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 20:10:32,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 20:10:32,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 20:10:32,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 20:10:32,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 20:10:32,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 20:10:32,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 20:10:32,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 20:10:32,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 20:10:32,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 20:10:32,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 20:10:32,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 20:10:32,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 20:10:32,332 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 20:10:32,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 20:10:32,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 20:10:32,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 20:10:32,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 20:10:32,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 20:10:32,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 20:10:32,337 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-McrStrategy.epf [2020-04-18 20:10:32,370 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 20:10:32,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 20:10:32,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 20:10:32,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 20:10:32,373 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 20:10:32,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 20:10:32,374 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 20:10:32,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 20:10:32,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 20:10:32,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 20:10:32,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 20:10:32,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 20:10:32,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 20:10:32,379 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 20:10:32,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 20:10:32,379 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 20:10:32,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 20:10:32,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 20:10:32,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 20:10:32,380 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 20:10:32,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 20:10:32,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:10:32,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 20:10:32,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 20:10:32,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 20:10:32,384 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 20:10:32,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 20:10:32,385 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 20:10:32,385 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 20:10:32,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 20:10:32,385 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 20:10:32,671 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 20:10:32,692 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 20:10:32,696 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 20:10:32,698 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 20:10:32,698 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 20:10:32,700 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2020-04-18 20:10:32,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d67940c1/8f18f6f23c7f426db901fd7bd77fd423/FLAG8444ce98e [2020-04-18 20:10:33,430 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 20:10:33,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2020-04-18 20:10:33,466 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d67940c1/8f18f6f23c7f426db901fd7bd77fd423/FLAG8444ce98e [2020-04-18 20:10:33,578 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d67940c1/8f18f6f23c7f426db901fd7bd77fd423 [2020-04-18 20:10:33,590 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 20:10:33,612 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 20:10:33,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 20:10:33,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 20:10:33,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 20:10:33,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:10:33" (1/1) ... [2020-04-18 20:10:33,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9f1af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:33, skipping insertion in model container [2020-04-18 20:10:33,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:10:33" (1/1) ... [2020-04-18 20:10:33,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 20:10:33,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 20:10:34,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:10:34,487 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 20:10:34,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:10:35,179 INFO L208 MainTranslator]: Completed translation [2020-04-18 20:10:35,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:35 WrapperNode [2020-04-18 20:10:35,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 20:10:35,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 20:10:35,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 20:10:35,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 20:10:35,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:35" (1/1) ... [2020-04-18 20:10:35,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:35" (1/1) ... [2020-04-18 20:10:35,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 20:10:35,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 20:10:35,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 20:10:35,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 20:10:35,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:35" (1/1) ... [2020-04-18 20:10:35,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:35" (1/1) ... [2020-04-18 20:10:35,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:35" (1/1) ... [2020-04-18 20:10:35,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:35" (1/1) ... [2020-04-18 20:10:35,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:35" (1/1) ... [2020-04-18 20:10:35,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:35" (1/1) ... [2020-04-18 20:10:35,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:35" (1/1) ... [2020-04-18 20:10:35,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 20:10:35,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 20:10:35,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 20:10:35,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 20:10:35,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:10:35,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 20:10:35,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 20:10:35,485 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-04-18 20:10:35,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-04-18 20:10:35,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 20:10:35,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 20:10:35,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 20:10:35,486 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-04-18 20:10:35,486 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-04-18 20:10:35,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 20:10:35,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 20:10:35,488 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 20:10:36,119 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 20:10:36,120 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-04-18 20:10:36,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:10:36 BoogieIcfgContainer [2020-04-18 20:10:36,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 20:10:36,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 20:10:36,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 20:10:36,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 20:10:36,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:10:33" (1/3) ... [2020-04-18 20:10:36,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a50c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:10:36, skipping insertion in model container [2020-04-18 20:10:36,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:35" (2/3) ... [2020-04-18 20:10:36,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a50c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:10:36, skipping insertion in model container [2020-04-18 20:10:36,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:10:36" (3/3) ... [2020-04-18 20:10:36,132 INFO L109 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2020-04-18 20:10:36,142 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 20:10:36,143 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 20:10:36,149 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-04-18 20:10:36,149 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 20:10:36,173 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:36,173 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:36,174 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:36,174 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:36,174 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:36,175 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:36,175 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:36,175 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:36,179 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:36,179 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:36,180 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:36,180 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:36,180 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:36,205 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-18 20:10:36,226 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:10:36,226 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:10:36,226 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:10:36,226 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:10:36,226 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:10:36,226 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:10:36,227 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:10:36,227 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:10:36,240 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 85 transitions, 178 flow [2020-04-18 20:10:36,260 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 246 states. [2020-04-18 20:10:36,262 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-04-18 20:10:36,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-04-18 20:10:36,269 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:36,269 INFO L425 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] [2020-04-18 20:10:36,270 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:10:36,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:36,276 INFO L82 PathProgramCache]: Analyzing trace with hash -2117655968, now seen corresponding path program 1 times [2020-04-18 20:10:36,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:36,285 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [140060550] [2020-04-18 20:10:36,301 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:36,309 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 23 transitions. [2020-04-18 20:10:36,311 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-04-18 20:10:36,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-04-18 20:10:36,313 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:36,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:36,313 INFO L82 PathProgramCache]: Analyzing trace with hash -2117655968, now seen corresponding path program 2 times [2020-04-18 20:10:36,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:36,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850539539] [2020-04-18 20:10:36,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:36,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:10:36,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850539539] [2020-04-18 20:10:36,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:10:36,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 20:10:36,862 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:36,866 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:36,879 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 23 transitions. [2020-04-18 20:10:36,879 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:36,950 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:10:36,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:10:36,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:10:36,960 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-04-18 20:10:37,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:37,085 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-04-18 20:10:37,086 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2020-04-18 20:10:37,086 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:10:37,087 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [140060550] [2020-04-18 20:10:37,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:10:37,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 20:10:37,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [140060550] [2020-04-18 20:10:37,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 20:10:37,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:10:37,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:10:37,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:10:37,095 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 5 states. [2020-04-18 20:10:37,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:37,275 INFO L93 Difference]: Finished difference Result 244 states and 391 transitions. [2020-04-18 20:10:37,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 20:10:37,277 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-04-18 20:10:37,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:10:37,301 INFO L225 Difference]: With dead ends: 244 [2020-04-18 20:10:37,301 INFO L226 Difference]: Without dead ends: 195 [2020-04-18 20:10:37,305 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:10:37,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-04-18 20:10:37,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2020-04-18 20:10:37,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-04-18 20:10:37,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 306 transitions. [2020-04-18 20:10:37,377 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 306 transitions. Word has length 23 [2020-04-18 20:10:37,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:10:37,377 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 306 transitions. [2020-04-18 20:10:37,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 20:10:37,378 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 306 transitions. [2020-04-18 20:10:37,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 20:10:37,379 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:37,379 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:10:37,379 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:10:37,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:37,380 INFO L82 PathProgramCache]: Analyzing trace with hash 635554302, now seen corresponding path program 1 times [2020-04-18 20:10:37,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:37,380 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1336187228] [2020-04-18 20:10:37,381 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:37,382 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 31 transitions. [2020-04-18 20:10:37,382 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-04-18 20:10:37,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 20:10:37,383 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:37,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:37,384 INFO L82 PathProgramCache]: Analyzing trace with hash 635554302, now seen corresponding path program 2 times [2020-04-18 20:10:37,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:37,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379383765] [2020-04-18 20:10:37,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:37,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:10:37,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379383765] [2020-04-18 20:10:37,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:10:37,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 20:10:37,520 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:37,524 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:37,528 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 31 transitions. [2020-04-18 20:10:37,528 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:37,554 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:10:37,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:10:37,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:10:37,555 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 5 states. [2020-04-18 20:10:37,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:37,627 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2020-04-18 20:10:37,628 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2020-04-18 20:10:37,628 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:10:37,629 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1336187228] [2020-04-18 20:10:37,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:10:37,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 20:10:37,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1336187228] [2020-04-18 20:10:37,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 20:10:37,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:10:37,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:10:37,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:10:37,631 INFO L87 Difference]: Start difference. First operand 195 states and 306 transitions. Second operand 5 states. [2020-04-18 20:10:37,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:37,729 INFO L93 Difference]: Finished difference Result 193 states and 304 transitions. [2020-04-18 20:10:37,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 20:10:37,730 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-04-18 20:10:37,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:10:37,732 INFO L225 Difference]: With dead ends: 193 [2020-04-18 20:10:37,732 INFO L226 Difference]: Without dead ends: 193 [2020-04-18 20:10:37,733 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 20:10:37,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-04-18 20:10:37,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2020-04-18 20:10:37,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-04-18 20:10:37,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 304 transitions. [2020-04-18 20:10:37,748 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 304 transitions. Word has length 31 [2020-04-18 20:10:37,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:10:37,748 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 304 transitions. [2020-04-18 20:10:37,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 20:10:37,749 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 304 transitions. [2020-04-18 20:10:37,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 20:10:37,751 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:37,751 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:10:37,751 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:10:37,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:37,752 INFO L82 PathProgramCache]: Analyzing trace with hash -869917500, now seen corresponding path program 1 times [2020-04-18 20:10:37,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:37,754 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [943522395] [2020-04-18 20:10:37,755 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:37,757 INFO L259 McrAutomatonBuilder]: Finished intersection with 42 states and 41 transitions. [2020-04-18 20:10:37,758 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-04-18 20:10:37,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 20:10:37,762 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:37,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:37,763 INFO L82 PathProgramCache]: Analyzing trace with hash -869917500, now seen corresponding path program 2 times [2020-04-18 20:10:37,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:37,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272225103] [2020-04-18 20:10:37,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:37,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:10:37,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272225103] [2020-04-18 20:10:37,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:10:37,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 20:10:37,923 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:37,930 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:37,939 INFO L259 McrAutomatonBuilder]: Finished intersection with 42 states and 41 transitions. [2020-04-18 20:10:37,939 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:37,975 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:10:37,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:10:37,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:10:37,976 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 5 states. [2020-04-18 20:10:38,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:38,057 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions. [2020-04-18 20:10:38,057 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions. [2020-04-18 20:10:38,057 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:10:38,058 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [943522395] [2020-04-18 20:10:38,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:10:38,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 20:10:38,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [943522395] [2020-04-18 20:10:38,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 20:10:38,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:10:38,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:10:38,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:10:38,060 INFO L87 Difference]: Start difference. First operand 193 states and 304 transitions. Second operand 5 states. [2020-04-18 20:10:38,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:38,180 INFO L93 Difference]: Finished difference Result 236 states and 366 transitions. [2020-04-18 20:10:38,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 20:10:38,181 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-04-18 20:10:38,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:10:38,183 INFO L225 Difference]: With dead ends: 236 [2020-04-18 20:10:38,183 INFO L226 Difference]: Without dead ends: 218 [2020-04-18 20:10:38,184 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 20:10:38,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-04-18 20:10:38,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 181. [2020-04-18 20:10:38,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-04-18 20:10:38,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 296 transitions. [2020-04-18 20:10:38,202 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 296 transitions. Word has length 41 [2020-04-18 20:10:38,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:10:38,203 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 296 transitions. [2020-04-18 20:10:38,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 20:10:38,203 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 296 transitions. [2020-04-18 20:10:38,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:10:38,205 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:38,205 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:10:38,205 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:10:38,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:38,206 INFO L82 PathProgramCache]: Analyzing trace with hash 916018852, now seen corresponding path program 1 times [2020-04-18 20:10:38,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:38,206 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [757900591] [2020-04-18 20:10:38,207 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:38,211 INFO L259 McrAutomatonBuilder]: Finished intersection with 102 states and 157 transitions. [2020-04-18 20:10:38,212 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states. [2020-04-18 20:10:38,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:10:38,213 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:38,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:38,214 INFO L82 PathProgramCache]: Analyzing trace with hash 2112206854, now seen corresponding path program 2 times [2020-04-18 20:10:38,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:38,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805555276] [2020-04-18 20:10:38,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:38,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:10:38,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805555276] [2020-04-18 20:10:38,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:10:38,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 20:10:38,333 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:38,341 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:38,414 INFO L259 McrAutomatonBuilder]: Finished intersection with 102 states and 156 transitions. [2020-04-18 20:10:38,415 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:38,587 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 8 times. [2020-04-18 20:10:38,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 20:10:38,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-04-18 20:10:38,588 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 9 states. [2020-04-18 20:10:38,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:38,921 INFO L93 Difference]: Finished difference Result 111 states and 165 transitions. [2020-04-18 20:10:38,921 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 165 transitions. [2020-04-18 20:10:38,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:10:38,922 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 20:10:38,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:38,923 INFO L82 PathProgramCache]: Analyzing trace with hash 916018852, now seen corresponding path program 3 times [2020-04-18 20:10:38,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:38,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380607753] [2020-04-18 20:10:38,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:10:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:10:39,033 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 20:10:39,033 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 20:10:39,033 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 20:10:39,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:10:39 BasicIcfg [2020-04-18 20:10:39,120 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 20:10:39,124 INFO L168 Benchmark]: Toolchain (without parser) took 5530.25 ms. Allocated memory was 144.2 MB in the beginning and 250.1 MB in the end (delta: 105.9 MB). Free memory was 97.6 MB in the beginning and 165.5 MB in the end (delta: -67.9 MB). Peak memory consumption was 38.0 MB. Max. memory is 7.1 GB. [2020-04-18 20:10:39,125 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.2 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 20:10:39,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1570.72 ms. Allocated memory was 144.2 MB in the beginning and 234.4 MB in the end (delta: 90.2 MB). Free memory was 95.6 MB in the beginning and 171.9 MB in the end (delta: -76.2 MB). Peak memory consumption was 73.9 MB. Max. memory is 7.1 GB. [2020-04-18 20:10:39,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 127.32 ms. Allocated memory is still 234.4 MB. Free memory was 171.9 MB in the beginning and 168.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-04-18 20:10:39,130 INFO L168 Benchmark]: Boogie Preprocessor took 82.42 ms. Allocated memory is still 234.4 MB. Free memory was 168.9 MB in the beginning and 166.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-04-18 20:10:39,131 INFO L168 Benchmark]: RCFGBuilder took 729.15 ms. Allocated memory is still 234.4 MB. Free memory was 166.0 MB in the beginning and 127.2 MB in the end (delta: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 7.1 GB. [2020-04-18 20:10:39,132 INFO L168 Benchmark]: TraceAbstraction took 2994.59 ms. Allocated memory was 234.4 MB in the beginning and 250.1 MB in the end (delta: 15.7 MB). Free memory was 127.2 MB in the beginning and 165.5 MB in the end (delta: -38.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 20:10:39,146 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.2 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1570.72 ms. Allocated memory was 144.2 MB in the beginning and 234.4 MB in the end (delta: 90.2 MB). Free memory was 95.6 MB in the beginning and 171.9 MB in the end (delta: -76.2 MB). Peak memory consumption was 73.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 127.32 ms. Allocated memory is still 234.4 MB. Free memory was 171.9 MB in the beginning and 168.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.42 ms. Allocated memory is still 234.4 MB. Free memory was 168.9 MB in the beginning and 166.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 729.15 ms. Allocated memory is still 234.4 MB. Free memory was 166.0 MB in the beginning and 127.2 MB in the end (delta: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2994.59 ms. Allocated memory was 234.4 MB in the beginning and 250.1 MB in the end (delta: 15.7 MB). Free memory was 127.2 MB in the beginning and 165.5 MB in the end (delta: -38.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1682]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1683] 0 pthread_t t1; VAL [t1={3:0}] [L1684] 0 pthread_mutex_t mutex; VAL [mutex={5:0}, t1={3:0}] [L1685] 0 int pdev; VAL [mutex={5:0}, pdev=0, t1={3:0}] [L1694] 0 pdev = 1 VAL [mutex={5:0}, pdev=1, t1={3:0}] [L1682] COND FALSE 0 !(!expression) VAL [mutex={5:0}, pdev=1, t1={3:0}] [L1696] COND TRUE 0 __VERIFIER_nondet_int() VAL [mutex={5:0}, pdev=1, t1={3:0}] [L1697] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={5:0}, pdev=1, t1={3:0}] [L1698] 0 return 0; VAL [arg={0:0}, mutex={5:0}, pdev=1, t1={3:0}] [L1715] COND FALSE 0 !(module_init()!=0) VAL [arg={0:0}, mutex={5:0}, pdev=1, t1={3:0}] [L1706] 0 void *status; VAL [arg={0:0}, arg={0:0}, mutex={5:0}, pdev=1, pthread_mutex_lock(&mutex)=0, t1={3:0}] [L1707] 0 pdev = 4 VAL [arg={0:0}, arg={0:0}, mutex={5:0}, pdev=4, pthread_mutex_lock(&mutex)=0, t1={3:0}] [L1688] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={5:0}, pdev=6, t1={3:0}] [L1682] COND TRUE 0 !expression VAL [arg={0:0}, arg={0:0}, mutex={5:0}, pdev=6, t1={3:0}] [L1682] 0 __VERIFIER_error() VAL [arg={0:0}, arg={0:0}, mutex={5:0}, pdev=6, t1={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 80 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 235 SDtfs, 291 SDslu, 451 SDs, 0 SdLazy, 92 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=246occurred 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, 3 MinimizatonAttempts, 37 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...