/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf -i ../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 05:23:50,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 05:23:50,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 05:23:50,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 05:23:50,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 05:23:50,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 05:23:50,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 05:23:50,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 05:23:50,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 05:23:50,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 05:23:50,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 05:23:50,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 05:23:50,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 05:23:50,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 05:23:50,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 05:23:50,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 05:23:50,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 05:23:50,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 05:23:50,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 05:23:50,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 05:23:50,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 05:23:50,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 05:23:50,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 05:23:50,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 05:23:50,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 05:23:50,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 05:23:50,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 05:23:50,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 05:23:50,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 05:23:50,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 05:23:50,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 05:23:50,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 05:23:50,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 05:23:50,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 05:23:50,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 05:23:50,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 05:23:50,288 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-PN-SemanticLbe-SemanticLooper.epf [2020-10-16 05:23:50,322 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 05:23:50,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 05:23:50,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 05:23:50,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 05:23:50,324 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 05:23:50,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 05:23:50,324 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 05:23:50,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 05:23:50,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 05:23:50,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 05:23:50,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 05:23:50,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 05:23:50,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 05:23:50,325 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 05:23:50,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 05:23:50,326 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 05:23:50,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 05:23:50,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 05:23:50,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 05:23:50,326 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 05:23:50,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 05:23:50,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 05:23:50,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 05:23:50,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 05:23:50,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 05:23:50,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 05:23:50,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 05:23:50,328 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 05:23:50,328 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 05:23:50,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 05:23:50,624 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 05:23:50,628 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 05:23:50,629 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 05:23:50,629 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 05:23:50,630 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2020-10-16 05:23:50,691 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa4f4f87b/52b65cbb0091414888e2113da672bb1f/FLAG0e905830c [2020-10-16 05:23:51,273 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 05:23:51,274 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2020-10-16 05:23:51,294 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa4f4f87b/52b65cbb0091414888e2113da672bb1f/FLAG0e905830c [2020-10-16 05:23:51,452 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa4f4f87b/52b65cbb0091414888e2113da672bb1f [2020-10-16 05:23:51,461 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 05:23:51,463 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 05:23:51,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 05:23:51,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 05:23:51,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 05:23:51,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:23:51" (1/1) ... [2020-10-16 05:23:51,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ee6a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:51, skipping insertion in model container [2020-10-16 05:23:51,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:23:51" (1/1) ... [2020-10-16 05:23:51,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 05:23:51,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 05:23:52,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:23:52,201 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 05:23:52,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:23:52,620 INFO L208 MainTranslator]: Completed translation [2020-10-16 05:23:52,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:52 WrapperNode [2020-10-16 05:23:52,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 05:23:52,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 05:23:52,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 05:23:52,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 05:23:52,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:52" (1/1) ... [2020-10-16 05:23:52,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:52" (1/1) ... [2020-10-16 05:23:52,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 05:23:52,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 05:23:52,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 05:23:52,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 05:23:52,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:52" (1/1) ... [2020-10-16 05:23:52,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:52" (1/1) ... [2020-10-16 05:23:52,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:52" (1/1) ... [2020-10-16 05:23:52,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:52" (1/1) ... [2020-10-16 05:23:52,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:52" (1/1) ... [2020-10-16 05:23:52,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:52" (1/1) ... [2020-10-16 05:23:52,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:52" (1/1) ... [2020-10-16 05:23:52,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 05:23:52,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 05:23:52,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 05:23:52,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 05:23:52,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 05:23:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 05:23:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 05:23:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 05:23:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-16 05:23:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 05:23:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 05:23:52,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 05:23:52,788 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-16 05:23:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-16 05:23:52,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 05:23:52,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 05:23:52,790 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 05:23:53,319 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 05:23:53,319 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-16 05:23:53,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:23:53 BoogieIcfgContainer [2020-10-16 05:23:53,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 05:23:53,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 05:23:53,323 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 05:23:53,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 05:23:53,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:23:51" (1/3) ... [2020-10-16 05:23:53,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bdb19e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:23:53, skipping insertion in model container [2020-10-16 05:23:53,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:52" (2/3) ... [2020-10-16 05:23:53,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bdb19e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:23:53, skipping insertion in model container [2020-10-16 05:23:53,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:23:53" (3/3) ... [2020-10-16 05:23:53,329 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2020-10-16 05:23:53,340 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 05:23:53,348 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-16 05:23:53,349 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 05:23:53,372 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:53,373 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:53,373 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:53,373 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:53,374 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:53,374 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:53,374 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:53,374 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:53,378 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:53,378 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:53,378 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:53,378 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:53,379 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:53,404 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 05:23:53,424 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:23:53,425 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:23:53,425 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:23:53,425 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:23:53,425 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:23:53,425 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:23:53,426 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:23:53,426 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:23:53,439 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 85 transitions, 178 flow [2020-10-16 05:23:53,478 INFO L129 PetriNetUnfolder]: 5/96 cut-off events. [2020-10-16 05:23:53,478 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 05:23:53,482 INFO L80 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 96 events. 5/96 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2020-10-16 05:23:53,482 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 85 transitions, 178 flow [2020-10-16 05:23:53,488 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 72 transitions, 150 flow [2020-10-16 05:23:53,490 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:23:53,491 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 72 transitions, 150 flow [2020-10-16 05:23:53,493 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 72 transitions, 150 flow [2020-10-16 05:23:53,494 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 150 flow [2020-10-16 05:23:53,510 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-10-16 05:23:53,511 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 05:23:53,511 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 72 events. 2/72 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2020-10-16 05:23:53,513 INFO L117 LiptonReduction]: Number of co-enabled transitions 238 [2020-10-16 05:23:55,495 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-16 05:23:55,610 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-16 05:23:55,648 INFO L132 LiptonReduction]: Checked pairs total: 298 [2020-10-16 05:23:55,648 INFO L134 LiptonReduction]: Total number of compositions: 80 [2020-10-16 05:23:55,651 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2163 [2020-10-16 05:23:55,661 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2020-10-16 05:23:55,662 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:23:55,662 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:23:55,663 INFO L255 CegarLoopForPetriNet]: trace histogram [1] [2020-10-16 05:23:55,663 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:23:55,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:23:55,671 INFO L82 PathProgramCache]: Analyzing trace with hash 320, now seen corresponding path program 1 times [2020-10-16 05:23:55,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:23:55,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932652232] [2020-10-16 05:23:55,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:23:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:23:55,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:23:55,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932652232] [2020-10-16 05:23:55,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:23:55,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-10-16 05:23:55,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192801194] [2020-10-16 05:23:55,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 05:23:55,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:23:55,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 05:23:55,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 05:23:55,921 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 165 [2020-10-16 05:23:55,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 10 transitions, 26 flow. Second operand 2 states. [2020-10-16 05:23:55,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:23:55,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 165 [2020-10-16 05:23:55,925 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:23:55,930 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2020-10-16 05:23:55,931 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 05:23:55,931 INFO L80 FinitePrefix]: Finished finitePrefix Result has 13 conditions, 7 events. 0/7 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 6 event pairs, 0 based on Foata normal form. 2/8 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-10-16 05:23:55,932 INFO L132 encePairwiseOnDemand]: 162/165 looper letters, 0 selfloop transitions, 0 changer transitions 2/7 dead transitions. [2020-10-16 05:23:55,932 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 7 transitions, 20 flow [2020-10-16 05:23:55,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 05:23:55,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-16 05:23:55,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 299 transitions. [2020-10-16 05:23:55,947 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.906060606060606 [2020-10-16 05:23:55,948 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 299 transitions. [2020-10-16 05:23:55,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 299 transitions. [2020-10-16 05:23:55,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:23:55,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 299 transitions. [2020-10-16 05:23:55,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-16 05:23:55,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-16 05:23:55,964 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-16 05:23:55,966 INFO L185 Difference]: Start difference. First operand has 14 places, 10 transitions, 26 flow. Second operand 2 states and 299 transitions. [2020-10-16 05:23:55,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 7 transitions, 20 flow [2020-10-16 05:23:55,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 7 transitions, 16 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:23:55,970 INFO L241 Difference]: Finished difference. Result has 10 places, 5 transitions, 11 flow [2020-10-16 05:23:55,973 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=11, PETRI_PLACES=10, PETRI_TRANSITIONS=5} [2020-10-16 05:23:55,974 INFO L342 CegarLoopForPetriNet]: 14 programPoint places, -4 predicate places. [2020-10-16 05:23:55,974 INFO L481 AbstractCegarLoop]: Abstraction has has 10 places, 5 transitions, 11 flow [2020-10-16 05:23:55,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 05:23:55,975 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:23:55,975 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2020-10-16 05:23:55,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 05:23:55,975 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:23:55,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:23:55,976 INFO L82 PathProgramCache]: Analyzing trace with hash 9713837, now seen corresponding path program 1 times [2020-10-16 05:23:55,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:23:55,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792400084] [2020-10-16 05:23:55,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:23:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:23:56,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:23:56,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792400084] [2020-10-16 05:23:56,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:23:56,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:23:56,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454398198] [2020-10-16 05:23:56,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:23:56,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:23:56,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:23:56,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:23:56,173 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 165 [2020-10-16 05:23:56,174 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 10 places, 5 transitions, 11 flow. Second operand 3 states. [2020-10-16 05:23:56,174 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:23:56,174 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 165 [2020-10-16 05:23:56,174 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:23:56,191 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2020-10-16 05:23:56,191 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:23:56,192 INFO L80 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 7 events. 0/7 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 2/9 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2020-10-16 05:23:56,192 INFO L132 encePairwiseOnDemand]: 162/165 looper letters, 2 selfloop transitions, 2 changer transitions 1/6 dead transitions. [2020-10-16 05:23:56,192 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 23 flow [2020-10-16 05:23:56,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:23:56,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:23:56,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2020-10-16 05:23:56,196 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2020-10-16 05:23:56,196 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 330 transitions. [2020-10-16 05:23:56,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 330 transitions. [2020-10-16 05:23:56,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:23:56,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 330 transitions. [2020-10-16 05:23:56,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:23:56,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:23:56,200 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:23:56,200 INFO L185 Difference]: Start difference. First operand has 10 places, 5 transitions, 11 flow. Second operand 3 states and 330 transitions. [2020-10-16 05:23:56,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 23 flow [2020-10-16 05:23:56,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 23 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 05:23:56,202 INFO L241 Difference]: Finished difference. Result has 11 places, 5 transitions, 19 flow [2020-10-16 05:23:56,202 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=11, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=19, PETRI_PLACES=11, PETRI_TRANSITIONS=5} [2020-10-16 05:23:56,203 INFO L342 CegarLoopForPetriNet]: 14 programPoint places, -3 predicate places. [2020-10-16 05:23:56,203 INFO L481 AbstractCegarLoop]: Abstraction has has 11 places, 5 transitions, 19 flow [2020-10-16 05:23:56,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:23:56,204 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:23:56,204 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 05:23:56,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 05:23:56,204 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:23:56,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:23:56,205 INFO L82 PathProgramCache]: Analyzing trace with hash 301129616, now seen corresponding path program 1 times [2020-10-16 05:23:56,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:23:56,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615363116] [2020-10-16 05:23:56,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:23:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:23:56,249 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:23:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:23:56,267 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:23:56,294 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 05:23:56,294 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 05:23:56,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 05:23:56,295 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 05:23:56,300 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [271] [271] L1695-1-->L1696: Formula: (and (<= 0 (+ |ULTIMATE.start_module_init_#t~nondet31_In-1795218181| 2147483648)) (<= |ULTIMATE.start_module_init_#t~nondet31_In-1795218181| 2147483647) (= |ULTIMATE.start_ldv_assert_#in~expression_In-1795218181| ULTIMATE.start_ldv_assert_~expression_Out-1795218181) (not (= ULTIMATE.start_ldv_assert_~expression_Out-1795218181 0))) InVars {ULTIMATE.start_module_init_#t~nondet31=|ULTIMATE.start_module_init_#t~nondet31_In-1795218181|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In-1795218181|} OutVars{ULTIMATE.start_module_init_#t~nondet31=|ULTIMATE.start_module_init_#t~nondet31_In-1795218181|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In-1795218181|, ULTIMATE.start_ldv_assert_~expression=ULTIMATE.start_ldv_assert_~expression_Out-1795218181} AuxVars[] AssignedVars[ULTIMATE.start_ldv_assert_~expression] because there is no mapped edge [2020-10-16 05:23:56,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:23:56 BasicIcfg [2020-10-16 05:23:56,323 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 05:23:56,325 INFO L168 Benchmark]: Toolchain (without parser) took 4861.95 ms. Allocated memory was 254.8 MB in the beginning and 426.2 MB in the end (delta: 171.4 MB). Free memory was 207.4 MB in the beginning and 327.5 MB in the end (delta: -120.1 MB). Peak memory consumption was 51.4 MB. Max. memory is 14.2 GB. [2020-10-16 05:23:56,325 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 254.8 MB. Free memory is still 231.2 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 05:23:56,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1157.13 ms. Allocated memory was 254.8 MB in the beginning and 360.7 MB in the end (delta: 105.9 MB). Free memory was 207.4 MB in the beginning and 327.4 MB in the end (delta: -120.0 MB). Peak memory consumption was 109.3 MB. Max. memory is 14.2 GB. [2020-10-16 05:23:56,327 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.92 ms. Allocated memory is still 360.7 MB. Free memory was 327.4 MB in the beginning and 324.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.2 GB. [2020-10-16 05:23:56,328 INFO L168 Benchmark]: Boogie Preprocessor took 42.72 ms. Allocated memory is still 360.7 MB. Free memory was 324.2 MB in the beginning and 320.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.2 GB. [2020-10-16 05:23:56,329 INFO L168 Benchmark]: RCFGBuilder took 591.92 ms. Allocated memory is still 360.7 MB. Free memory was 320.9 MB in the beginning and 282.4 MB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 14.2 GB. [2020-10-16 05:23:56,330 INFO L168 Benchmark]: TraceAbstraction took 3000.34 ms. Allocated memory was 360.7 MB in the beginning and 426.2 MB in the end (delta: 65.5 MB). Free memory was 282.4 MB in the beginning and 327.5 MB in the end (delta: -45.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 14.2 GB. [2020-10-16 05:23:56,334 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 254.8 MB. Free memory is still 231.2 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 1157.13 ms. Allocated memory was 254.8 MB in the beginning and 360.7 MB in the end (delta: 105.9 MB). Free memory was 207.4 MB in the beginning and 327.4 MB in the end (delta: -120.0 MB). Peak memory consumption was 109.3 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 64.92 ms. Allocated memory is still 360.7 MB. Free memory was 327.4 MB in the beginning and 324.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 42.72 ms. Allocated memory is still 360.7 MB. Free memory was 324.2 MB in the beginning and 320.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.2 GB. * RCFGBuilder took 591.92 ms. Allocated memory is still 360.7 MB. Free memory was 320.9 MB in the beginning and 282.4 MB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3000.34 ms. Allocated memory was 360.7 MB in the beginning and 426.2 MB in the end (delta: 65.5 MB). Free memory was 282.4 MB in the beginning and 327.5 MB in the end (delta: -45.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 181 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 19 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.1s, 74 PlacesBefore, 14 PlacesAfterwards, 72 TransitionsBefore, 10 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 7 FixpointIterations, 49 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 298 MoverChecksTotal - 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; [L1684] 0 pthread_mutex_t mutex; [L1685] 0 int pdev; [L1694] 0 pdev = 1 [L1696] COND TRUE 0 __VERIFIER_nondet_int() [L1697] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={3:0}, pdev=1, t1={2:0}] [L1698] 0 pdev = 2 VAL [arg={0:0}, mutex={3:0}, pdev=2, t1={2:0}] [L1688] 1 pdev = 6 [L1690] 1 return 0; [L1682] COND TRUE 0 !expression [L1682] 0 __VERIFIER_error() VAL [\result={0:0}, arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 80 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 2.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 5 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...