/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.epf -i ../../../trunk/examples/svcomp/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 00:00:05,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 00:00:05,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 00:00:05,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 00:00:05,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 00:00:05,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 00:00:05,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 00:00:05,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 00:00:05,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 00:00:05,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 00:00:05,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 00:00:05,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 00:00:05,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 00:00:05,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 00:00:05,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 00:00:05,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 00:00:05,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 00:00:05,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 00:00:05,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 00:00:05,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 00:00:05,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 00:00:05,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 00:00:05,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 00:00:05,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 00:00:05,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 00:00:05,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 00:00:05,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 00:00:05,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 00:00:05,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 00:00:05,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 00:00:05,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 00:00:05,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 00:00:05,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 00:00:05,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 00:00:05,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 00:00:05,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 00:00:05,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 00:00:05,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 00:00:05,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 00:00:05,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 00:00:05,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 00:00:05,460 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.epf [2020-10-16 00:00:05,487 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 00:00:05,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 00:00:05,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 00:00:05,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 00:00:05,489 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 00:00:05,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 00:00:05,490 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 00:00:05,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 00:00:05,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 00:00:05,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 00:00:05,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 00:00:05,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 00:00:05,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 00:00:05,491 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 00:00:05,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 00:00:05,491 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 00:00:05,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 00:00:05,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 00:00:05,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 00:00:05,492 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 00:00:05,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 00:00:05,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 00:00:05,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 00:00:05,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 00:00:05,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 00:00:05,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 00:00:05,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 00:00:05,494 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 00:00:05,494 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 00:00:05,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 00:00:05,850 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 00:00:05,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 00:00:05,855 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 00:00:05,856 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 00:00:05,856 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2020-10-16 00:00:05,933 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45510832c/7ec6628fb2bd46f7888243f8bbe87c64/FLAG221f7c389 [2020-10-16 00:00:06,595 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 00:00:06,596 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2020-10-16 00:00:06,624 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45510832c/7ec6628fb2bd46f7888243f8bbe87c64/FLAG221f7c389 [2020-10-16 00:00:06,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45510832c/7ec6628fb2bd46f7888243f8bbe87c64 [2020-10-16 00:00:06,761 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 00:00:06,763 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 00:00:06,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 00:00:06,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 00:00:06,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 00:00:06,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:00:06" (1/1) ... [2020-10-16 00:00:06,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea0139e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:06, skipping insertion in model container [2020-10-16 00:00:06,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:00:06" (1/1) ... [2020-10-16 00:00:06,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 00:00:06,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 00:00:07,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 00:00:07,681 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 00:00:07,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 00:00:07,960 INFO L208 MainTranslator]: Completed translation [2020-10-16 00:00:07,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:07 WrapperNode [2020-10-16 00:00:07,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 00:00:07,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 00:00:07,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 00:00:07,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 00:00:07,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:07" (1/1) ... [2020-10-16 00:00:07,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:07" (1/1) ... [2020-10-16 00:00:08,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 00:00:08,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 00:00:08,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 00:00:08,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 00:00:08,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:07" (1/1) ... [2020-10-16 00:00:08,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:07" (1/1) ... [2020-10-16 00:00:08,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:07" (1/1) ... [2020-10-16 00:00:08,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:07" (1/1) ... [2020-10-16 00:00:08,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:07" (1/1) ... [2020-10-16 00:00:08,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:07" (1/1) ... [2020-10-16 00:00:08,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:07" (1/1) ... [2020-10-16 00:00:08,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 00:00:08,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 00:00:08,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 00:00:08,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 00:00:08,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:07" (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 00:00:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 00:00:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 00:00:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 00:00:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-16 00:00:08,167 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-16 00:00:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-16 00:00:08,168 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-16 00:00:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 00:00:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 00:00:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 00:00:08,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 00:00:08,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 00:00:08,172 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 00:00:08,776 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 00:00:08,776 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-16 00:00:08,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:00:08 BoogieIcfgContainer [2020-10-16 00:00:08,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 00:00:08,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 00:00:08,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 00:00:08,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 00:00:08,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:00:06" (1/3) ... [2020-10-16 00:00:08,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bcfb857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:00:08, skipping insertion in model container [2020-10-16 00:00:08,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:07" (2/3) ... [2020-10-16 00:00:08,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bcfb857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:00:08, skipping insertion in model container [2020-10-16 00:00:08,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:00:08" (3/3) ... [2020-10-16 00:00:08,789 INFO L111 eAbstractionObserver]: Analyzing ICFG sync01.i [2020-10-16 00:00:08,803 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 00:00:08,812 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 00:00:08,814 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 00:00:08,846 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,846 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,847 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,847 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,847 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,847 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,848 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,848 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,848 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,849 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,849 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,849 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,849 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,850 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,850 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,851 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,851 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,851 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,852 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,852 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,852 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,853 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,853 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,853 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,853 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,854 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,858 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,858 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,859 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,859 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,859 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,859 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,860 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,869 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,870 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,870 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,870 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,871 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,872 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,872 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:00:08,908 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 00:00:08,931 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 00:00:08,931 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 00:00:08,932 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 00:00:08,932 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 00:00:08,932 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 00:00:08,932 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 00:00:08,932 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 00:00:08,933 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 00:00:08,948 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 204 flow [2020-10-16 00:00:09,007 INFO L129 PetriNetUnfolder]: 6/91 cut-off events. [2020-10-16 00:00:09,008 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 00:00:09,014 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 91 events. 6/91 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2020-10-16 00:00:09,014 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 91 transitions, 204 flow [2020-10-16 00:00:09,022 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 80 transitions, 178 flow [2020-10-16 00:00:09,025 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 00:00:09,028 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 80 transitions, 178 flow [2020-10-16 00:00:09,031 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 80 transitions, 178 flow [2020-10-16 00:00:09,032 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 80 transitions, 178 flow [2020-10-16 00:00:09,062 INFO L129 PetriNetUnfolder]: 5/82 cut-off events. [2020-10-16 00:00:09,062 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 00:00:09,064 INFO L80 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 82 events. 5/82 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2020-10-16 00:00:09,066 INFO L117 LiptonReduction]: Number of co-enabled transitions 840 [2020-10-16 00:00:10,986 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2020-10-16 00:00:11,313 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-16 00:00:11,535 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-16 00:00:11,648 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-16 00:00:12,342 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 147 [2020-10-16 00:00:12,656 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-16 00:00:12,665 INFO L132 LiptonReduction]: Checked pairs total: 3245 [2020-10-16 00:00:12,666 INFO L134 LiptonReduction]: Total number of compositions: 55 [2020-10-16 00:00:12,668 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3646 [2020-10-16 00:00:12,681 INFO L129 PetriNetUnfolder]: 5/32 cut-off events. [2020-10-16 00:00:12,682 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 00:00:12,682 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 00:00:12,683 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 00:00:12,684 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 00:00:12,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 00:00:12,691 INFO L82 PathProgramCache]: Analyzing trace with hash -786642909, now seen corresponding path program 1 times [2020-10-16 00:00:12,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 00:00:12,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780944985] [2020-10-16 00:00:12,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 00:00:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 00:00:12,912 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 00:00:12,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780944985] [2020-10-16 00:00:12,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 00:00:12,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 00:00:12,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679556020] [2020-10-16 00:00:12,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 00:00:12,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 00:00:12,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 00:00:12,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 00:00:12,953 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 146 [2020-10-16 00:00:12,958 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 31 transitions, 80 flow. Second operand 2 states. [2020-10-16 00:00:12,958 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 00:00:12,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 146 [2020-10-16 00:00:12,960 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 00:00:12,992 INFO L129 PetriNetUnfolder]: 3/31 cut-off events. [2020-10-16 00:00:12,992 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 00:00:12,993 INFO L80 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 31 events. 3/31 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 2/31 useless extension candidates. Maximal degree in co-relation 39. Up to 3 conditions per place. [2020-10-16 00:00:12,994 INFO L132 encePairwiseOnDemand]: 144/146 looper letters, 0 selfloop transitions, 0 changer transitions 0/29 dead transitions. [2020-10-16 00:00:12,994 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 76 flow [2020-10-16 00:00:12,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 00:00:12,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-16 00:00:13,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 276 transitions. [2020-10-16 00:00:13,013 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.9452054794520548 [2020-10-16 00:00:13,014 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 276 transitions. [2020-10-16 00:00:13,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 276 transitions. [2020-10-16 00:00:13,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 00:00:13,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 276 transitions. [2020-10-16 00:00:13,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-16 00:00:13,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-16 00:00:13,031 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-16 00:00:13,034 INFO L185 Difference]: Start difference. First operand has 32 places, 31 transitions, 80 flow. Second operand 2 states and 276 transitions. [2020-10-16 00:00:13,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 76 flow [2020-10-16 00:00:13,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 29 transitions, 64 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-16 00:00:13,041 INFO L241 Difference]: Finished difference. Result has 29 places, 29 transitions, 64 flow [2020-10-16 00:00:13,044 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=64, PETRI_PLACES=29, PETRI_TRANSITIONS=29} [2020-10-16 00:00:13,046 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2020-10-16 00:00:13,046 INFO L481 AbstractCegarLoop]: Abstraction has has 29 places, 29 transitions, 64 flow [2020-10-16 00:00:13,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 00:00:13,046 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 00:00:13,046 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 00:00:13,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 00:00:13,047 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 00:00:13,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 00:00:13,047 INFO L82 PathProgramCache]: Analyzing trace with hash 428186316, now seen corresponding path program 1 times [2020-10-16 00:00:13,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 00:00:13,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087151713] [2020-10-16 00:00:13,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 00:00:13,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 00:00:13,171 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 00:00:13,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087151713] [2020-10-16 00:00:13,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 00:00:13,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 00:00:13,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900226941] [2020-10-16 00:00:13,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 00:00:13,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 00:00:13,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 00:00:13,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 00:00:13,177 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 146 [2020-10-16 00:00:13,178 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 29 transitions, 64 flow. Second operand 3 states. [2020-10-16 00:00:13,178 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 00:00:13,178 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 146 [2020-10-16 00:00:13,178 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 00:00:13,214 INFO L129 PetriNetUnfolder]: 9/47 cut-off events. [2020-10-16 00:00:13,215 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 00:00:13,215 INFO L80 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 47 events. 9/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 2 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 69. Up to 13 conditions per place. [2020-10-16 00:00:13,216 INFO L132 encePairwiseOnDemand]: 141/146 looper letters, 7 selfloop transitions, 2 changer transitions 1/27 dead transitions. [2020-10-16 00:00:13,216 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 27 transitions, 80 flow [2020-10-16 00:00:13,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 00:00:13,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 00:00:13,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2020-10-16 00:00:13,222 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8082191780821918 [2020-10-16 00:00:13,222 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 354 transitions. [2020-10-16 00:00:13,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 354 transitions. [2020-10-16 00:00:13,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 00:00:13,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 354 transitions. [2020-10-16 00:00:13,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 00:00:13,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 00:00:13,229 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 00:00:13,229 INFO L185 Difference]: Start difference. First operand has 29 places, 29 transitions, 64 flow. Second operand 3 states and 354 transitions. [2020-10-16 00:00:13,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 27 transitions, 80 flow [2020-10-16 00:00:13,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 27 transitions, 80 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 00:00:13,233 INFO L241 Difference]: Finished difference. Result has 31 places, 26 transitions, 70 flow [2020-10-16 00:00:13,233 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2020-10-16 00:00:13,235 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2020-10-16 00:00:13,235 INFO L481 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 70 flow [2020-10-16 00:00:13,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 00:00:13,235 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 00:00:13,236 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 00:00:13,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 00:00:13,236 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 00:00:13,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 00:00:13,237 INFO L82 PathProgramCache]: Analyzing trace with hash 620591748, now seen corresponding path program 1 times [2020-10-16 00:00:13,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 00:00:13,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090558061] [2020-10-16 00:00:13,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 00:00:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 00:00:13,371 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 00:00:13,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090558061] [2020-10-16 00:00:13,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 00:00:13,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 00:00:13,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339389306] [2020-10-16 00:00:13,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 00:00:13,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 00:00:13,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 00:00:13,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 00:00:13,376 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 146 [2020-10-16 00:00:13,377 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 70 flow. Second operand 3 states. [2020-10-16 00:00:13,377 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 00:00:13,377 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 146 [2020-10-16 00:00:13,377 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 00:00:13,419 INFO L129 PetriNetUnfolder]: 3/38 cut-off events. [2020-10-16 00:00:13,420 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 00:00:13,420 INFO L80 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 38 events. 3/38 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 3/41 useless extension candidates. Maximal degree in co-relation 59. Up to 6 conditions per place. [2020-10-16 00:00:13,421 INFO L132 encePairwiseOnDemand]: 140/146 looper letters, 1 selfloop transitions, 6 changer transitions 0/26 dead transitions. [2020-10-16 00:00:13,421 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 26 transitions, 84 flow [2020-10-16 00:00:13,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 00:00:13,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 00:00:13,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2020-10-16 00:00:13,425 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6872146118721462 [2020-10-16 00:00:13,425 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2020-10-16 00:00:13,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2020-10-16 00:00:13,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 00:00:13,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2020-10-16 00:00:13,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 00:00:13,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 00:00:13,430 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 00:00:13,431 INFO L185 Difference]: Start difference. First operand has 31 places, 26 transitions, 70 flow. Second operand 3 states and 301 transitions. [2020-10-16 00:00:13,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 26 transitions, 84 flow [2020-10-16 00:00:13,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 26 transitions, 80 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 00:00:13,433 INFO L241 Difference]: Finished difference. Result has 31 places, 26 transitions, 78 flow [2020-10-16 00:00:13,433 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2020-10-16 00:00:13,434 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2020-10-16 00:00:13,434 INFO L481 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 78 flow [2020-10-16 00:00:13,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 00:00:13,434 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 00:00:13,434 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 00:00:13,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 00:00:13,435 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 00:00:13,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 00:00:13,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1110557248, now seen corresponding path program 2 times [2020-10-16 00:00:13,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 00:00:13,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892806399] [2020-10-16 00:00:13,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 00:00:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 00:00:13,515 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 00:00:13,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892806399] [2020-10-16 00:00:13,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 00:00:13,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 00:00:13,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145731773] [2020-10-16 00:00:13,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 00:00:13,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 00:00:13,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 00:00:13,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 00:00:13,520 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 146 [2020-10-16 00:00:13,521 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 78 flow. Second operand 5 states. [2020-10-16 00:00:13,521 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 00:00:13,521 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 146 [2020-10-16 00:00:13,521 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 00:00:13,604 INFO L129 PetriNetUnfolder]: 2/37 cut-off events. [2020-10-16 00:00:13,604 INFO L130 PetriNetUnfolder]: For 2/6 co-relation queries the response was YES. [2020-10-16 00:00:13,605 INFO L80 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 37 events. 2/37 cut-off events. For 2/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 3/40 useless extension candidates. Maximal degree in co-relation 64. Up to 6 conditions per place. [2020-10-16 00:00:13,606 INFO L132 encePairwiseOnDemand]: 141/146 looper letters, 4 selfloop transitions, 4 changer transitions 0/25 dead transitions. [2020-10-16 00:00:13,606 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 25 transitions, 91 flow [2020-10-16 00:00:13,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 00:00:13,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 00:00:13,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 359 transitions. [2020-10-16 00:00:13,610 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.4917808219178082 [2020-10-16 00:00:13,611 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 359 transitions. [2020-10-16 00:00:13,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 359 transitions. [2020-10-16 00:00:13,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 00:00:13,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 359 transitions. [2020-10-16 00:00:13,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 00:00:13,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 00:00:13,616 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 00:00:13,616 INFO L185 Difference]: Start difference. First operand has 31 places, 26 transitions, 78 flow. Second operand 5 states and 359 transitions. [2020-10-16 00:00:13,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 25 transitions, 91 flow [2020-10-16 00:00:13,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 25 transitions, 85 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 00:00:13,618 INFO L241 Difference]: Finished difference. Result has 34 places, 25 transitions, 77 flow [2020-10-16 00:00:13,619 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=77, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2020-10-16 00:00:13,619 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2020-10-16 00:00:13,619 INFO L481 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 77 flow [2020-10-16 00:00:13,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 00:00:13,620 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 00:00:13,620 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 00:00:13,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 00:00:13,620 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 00:00:13,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 00:00:13,621 INFO L82 PathProgramCache]: Analyzing trace with hash -438382186, now seen corresponding path program 2 times [2020-10-16 00:00:13,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 00:00:13,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285970165] [2020-10-16 00:00:13,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 00:00:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 00:00:13,791 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 00:00:13,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285970165] [2020-10-16 00:00:13,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 00:00:13,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 00:00:13,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369242571] [2020-10-16 00:00:13,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 00:00:13,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 00:00:13,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 00:00:13,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 00:00:13,796 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 146 [2020-10-16 00:00:13,797 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 77 flow. Second operand 8 states. [2020-10-16 00:00:13,798 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 00:00:13,798 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 146 [2020-10-16 00:00:13,798 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 00:00:13,905 INFO L129 PetriNetUnfolder]: 3/39 cut-off events. [2020-10-16 00:00:13,905 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-10-16 00:00:13,906 INFO L80 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 39 events. 3/39 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 1 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 76. Up to 9 conditions per place. [2020-10-16 00:00:13,906 INFO L132 encePairwiseOnDemand]: 137/146 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2020-10-16 00:00:13,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 24 transitions, 99 flow [2020-10-16 00:00:13,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 00:00:13,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-16 00:00:13,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 967 transitions. [2020-10-16 00:00:13,911 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7359208523592086 [2020-10-16 00:00:13,911 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 967 transitions. [2020-10-16 00:00:13,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 967 transitions. [2020-10-16 00:00:13,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 00:00:13,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 967 transitions. [2020-10-16 00:00:13,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-16 00:00:13,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-16 00:00:13,919 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-16 00:00:13,919 INFO L185 Difference]: Start difference. First operand has 34 places, 25 transitions, 77 flow. Second operand 9 states and 967 transitions. [2020-10-16 00:00:13,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 24 transitions, 99 flow [2020-10-16 00:00:13,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 24 transitions, 91 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-16 00:00:13,921 INFO L241 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2020-10-16 00:00:13,921 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2020-10-16 00:00:13,922 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, 5 predicate places. [2020-10-16 00:00:13,922 INFO L481 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2020-10-16 00:00:13,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 00:00:13,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 00:00:13,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:00:13 BasicIcfg [2020-10-16 00:00:13,928 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 00:00:13,930 INFO L168 Benchmark]: Toolchain (without parser) took 7167.95 ms. Allocated memory was 250.6 MB in the beginning and 428.9 MB in the end (delta: 178.3 MB). Free memory was 203.4 MB in the beginning and 288.9 MB in the end (delta: -85.5 MB). Peak memory consumption was 92.8 MB. Max. memory is 14.2 GB. [2020-10-16 00:00:13,931 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 250.6 MB. Free memory is still 224.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 00:00:13,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1196.89 ms. Allocated memory was 250.6 MB in the beginning and 311.4 MB in the end (delta: 60.8 MB). Free memory was 203.4 MB in the beginning and 244.2 MB in the end (delta: -40.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 14.2 GB. [2020-10-16 00:00:13,933 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.65 ms. Allocated memory is still 311.4 MB. Free memory was 244.2 MB in the beginning and 241.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 00:00:13,934 INFO L168 Benchmark]: Boogie Preprocessor took 37.46 ms. Allocated memory is still 311.4 MB. Free memory is still 241.7 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 00:00:13,934 INFO L168 Benchmark]: RCFGBuilder took 710.86 ms. Allocated memory is still 311.4 MB. Free memory was 241.7 MB in the beginning and 212.3 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 14.2 GB. [2020-10-16 00:00:13,935 INFO L168 Benchmark]: TraceAbstraction took 5147.71 ms. Allocated memory was 311.4 MB in the beginning and 428.9 MB in the end (delta: 117.4 MB). Free memory was 212.3 MB in the beginning and 288.9 MB in the end (delta: -76.7 MB). Peak memory consumption was 40.8 MB. Max. memory is 14.2 GB. [2020-10-16 00:00:13,940 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 250.6 MB. Free memory is still 224.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 1196.89 ms. Allocated memory was 250.6 MB in the beginning and 311.4 MB in the end (delta: 60.8 MB). Free memory was 203.4 MB in the beginning and 244.2 MB in the end (delta: -40.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 67.65 ms. Allocated memory is still 311.4 MB. Free memory was 244.2 MB in the beginning and 241.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 37.46 ms. Allocated memory is still 311.4 MB. Free memory is still 241.7 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 710.86 ms. Allocated memory is still 311.4 MB. Free memory was 241.7 MB in the beginning and 212.3 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 5147.71 ms. Allocated memory was 311.4 MB in the beginning and 428.9 MB in the end (delta: 117.4 MB). Free memory was 212.3 MB in the beginning and 288.9 MB in the end (delta: -76.7 MB). Peak memory consumption was 40.8 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 630 VarBasedMoverChecksPositive, 55 VarBasedMoverChecksNegative, 24 SemBasedMoverChecksPositive, 31 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 225 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.6s, 81 PlacesBefore, 32 PlacesAfterwards, 80 TransitionsBefore, 31 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 55 TotalNumberOfCompositions, 3245 MoverChecksTotal - PositiveResult [Line: 947]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 85 locations, 1 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: SAFE, OverallTime: 4.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 19 SDtfs, 28 SDslu, 13 SDs, 0 SdLazy, 56 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 5676 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...