/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/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 03:23:51,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 03:23:51,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 03:23:51,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 03:23:51,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 03:23:51,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 03:23:51,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 03:23:51,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 03:23:51,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 03:23:51,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 03:23:51,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 03:23:51,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 03:23:51,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 03:23:51,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 03:23:51,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 03:23:51,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 03:23:51,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 03:23:51,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 03:23:51,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 03:23:51,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 03:23:51,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 03:23:51,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 03:23:51,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 03:23:51,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 03:23:51,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 03:23:51,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 03:23:51,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 03:23:51,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 03:23:51,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 03:23:51,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 03:23:51,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 03:23:51,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 03:23:51,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 03:23:51,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 03:23:51,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 03:23:51,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 03:23:51,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 03:23:51,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 03:23:51,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 03:23:51,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 03:23:51,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 03:23:51,413 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 03:23:51,460 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 03:23:51,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 03:23:51,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 03:23:51,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 03:23:51,462 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 03:23:51,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 03:23:51,464 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 03:23:51,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 03:23:51,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 03:23:51,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 03:23:51,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 03:23:51,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 03:23:51,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 03:23:51,466 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 03:23:51,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 03:23:51,466 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 03:23:51,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 03:23:51,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 03:23:51,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 03:23:51,467 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 03:23:51,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 03:23:51,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 03:23:51,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 03:23:51,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 03:23:51,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 03:23:51,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 03:23:51,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 03:23:51,472 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 03:23:51,472 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 03:23:51,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 03:23:51,837 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 03:23:51,841 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 03:23:51,842 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 03:23:51,843 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 03:23:51,843 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2020-10-16 03:23:51,925 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/334e8dffa/b832ca6516594a00891dc8cf3373f27d/FLAG0486dc6ed [2020-10-16 03:23:52,516 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 03:23:52,517 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2020-10-16 03:23:52,531 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/334e8dffa/b832ca6516594a00891dc8cf3373f27d/FLAG0486dc6ed [2020-10-16 03:23:52,790 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/334e8dffa/b832ca6516594a00891dc8cf3373f27d [2020-10-16 03:23:52,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 03:23:52,802 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 03:23:52,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 03:23:52,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 03:23:52,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 03:23:52,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:23:52" (1/1) ... [2020-10-16 03:23:52,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3459e0a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:52, skipping insertion in model container [2020-10-16 03:23:52,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:23:52" (1/1) ... [2020-10-16 03:23:52,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 03:23:52,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 03:23:53,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 03:23:53,469 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 03:23:53,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 03:23:53,741 INFO L208 MainTranslator]: Completed translation [2020-10-16 03:23:53,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:53 WrapperNode [2020-10-16 03:23:53,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 03:23:53,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 03:23:53,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 03:23:53,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 03:23:53,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:53" (1/1) ... [2020-10-16 03:23:53,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:53" (1/1) ... [2020-10-16 03:23:53,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 03:23:53,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 03:23:53,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 03:23:53,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 03:23:53,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:53" (1/1) ... [2020-10-16 03:23:53,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:53" (1/1) ... [2020-10-16 03:23:53,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:53" (1/1) ... [2020-10-16 03:23:53,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:53" (1/1) ... [2020-10-16 03:23:53,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:53" (1/1) ... [2020-10-16 03:23:53,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:53" (1/1) ... [2020-10-16 03:23:53,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:53" (1/1) ... [2020-10-16 03:23:53,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 03:23:53,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 03:23:53,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 03:23:53,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 03:23:53,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:53" (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 03:23:53,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 03:23:53,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 03:23:53,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 03:23:53,909 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-16 03:23:53,909 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-16 03:23:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-16 03:23:53,911 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-16 03:23:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 03:23:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 03:23:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 03:23:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 03:23:53,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 03:23:53,914 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 03:23:54,339 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 03:23:54,339 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-16 03:23:54,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:23:54 BoogieIcfgContainer [2020-10-16 03:23:54,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 03:23:54,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 03:23:54,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 03:23:54,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 03:23:54,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:23:52" (1/3) ... [2020-10-16 03:23:54,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2762bad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:23:54, skipping insertion in model container [2020-10-16 03:23:54,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:53" (2/3) ... [2020-10-16 03:23:54,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2762bad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:23:54, skipping insertion in model container [2020-10-16 03:23:54,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:23:54" (3/3) ... [2020-10-16 03:23:54,352 INFO L111 eAbstractionObserver]: Analyzing ICFG sync01.i [2020-10-16 03:23:54,366 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 03:23:54,375 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 03:23:54,377 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 03:23:54,412 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,412 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,413 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,413 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,413 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,414 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,414 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,415 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,415 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,415 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,416 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,416 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,416 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,417 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,417 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,417 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,418 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,418 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,418 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,419 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,419 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,419 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,420 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,420 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,420 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,421 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,425 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,425 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,426 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,426 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,426 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,426 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,427 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,434 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,435 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,435 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,435 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,435 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,436 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,436 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:54,466 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 03:23:54,489 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 03:23:54,489 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 03:23:54,489 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 03:23:54,490 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 03:23:54,490 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 03:23:54,490 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 03:23:54,490 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 03:23:54,490 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 03:23:54,508 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 204 flow [2020-10-16 03:23:54,587 INFO L129 PetriNetUnfolder]: 6/91 cut-off events. [2020-10-16 03:23:54,588 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 03:23:54,594 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 03:23:54,594 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 91 transitions, 204 flow [2020-10-16 03:23:54,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 80 transitions, 178 flow [2020-10-16 03:23:54,605 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 03:23:54,607 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 80 transitions, 178 flow [2020-10-16 03:23:54,610 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 80 transitions, 178 flow [2020-10-16 03:23:54,611 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 80 transitions, 178 flow [2020-10-16 03:23:54,650 INFO L129 PetriNetUnfolder]: 5/82 cut-off events. [2020-10-16 03:23:54,650 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 03:23:54,651 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 03:23:54,654 INFO L117 LiptonReduction]: Number of co-enabled transitions 840 [2020-10-16 03:23:56,186 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2020-10-16 03:23:57,423 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 147 [2020-10-16 03:23:57,709 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-16 03:23:57,717 INFO L132 LiptonReduction]: Checked pairs total: 3245 [2020-10-16 03:23:57,718 INFO L134 LiptonReduction]: Total number of compositions: 55 [2020-10-16 03:23:57,721 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3119 [2020-10-16 03:23:57,732 INFO L129 PetriNetUnfolder]: 5/32 cut-off events. [2020-10-16 03:23:57,732 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 03:23:57,733 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:23:57,734 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:23:57,734 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:23:57,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:23:57,741 INFO L82 PathProgramCache]: Analyzing trace with hash -786642909, now seen corresponding path program 1 times [2020-10-16 03:23:57,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:23:57,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965252168] [2020-10-16 03:23:57,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:23:57,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:23:57,940 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 03:23:57,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965252168] [2020-10-16 03:23:57,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:23:57,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 03:23:57,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299555729] [2020-10-16 03:23:57,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 03:23:57,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:23:57,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 03:23:57,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 03:23:57,974 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 146 [2020-10-16 03:23:57,977 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 31 transitions, 80 flow. Second operand 2 states. [2020-10-16 03:23:57,977 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:23:57,977 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 146 [2020-10-16 03:23:57,979 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:23:57,992 INFO L129 PetriNetUnfolder]: 3/31 cut-off events. [2020-10-16 03:23:57,992 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 03:23:57,993 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 03:23:57,994 INFO L132 encePairwiseOnDemand]: 144/146 looper letters, 0 selfloop transitions, 0 changer transitions 0/29 dead transitions. [2020-10-16 03:23:57,995 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 76 flow [2020-10-16 03:23:57,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 03:23:57,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-16 03:23:58,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 276 transitions. [2020-10-16 03:23:58,011 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.9452054794520548 [2020-10-16 03:23:58,012 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 276 transitions. [2020-10-16 03:23:58,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 276 transitions. [2020-10-16 03:23:58,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:23:58,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 276 transitions. [2020-10-16 03:23:58,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-16 03:23:58,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-16 03:23:58,034 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-16 03:23:58,037 INFO L185 Difference]: Start difference. First operand has 32 places, 31 transitions, 80 flow. Second operand 2 states and 276 transitions. [2020-10-16 03:23:58,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 76 flow [2020-10-16 03:23:58,042 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 03:23:58,043 INFO L241 Difference]: Finished difference. Result has 29 places, 29 transitions, 64 flow [2020-10-16 03:23:58,047 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 03:23:58,048 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2020-10-16 03:23:58,048 INFO L481 AbstractCegarLoop]: Abstraction has has 29 places, 29 transitions, 64 flow [2020-10-16 03:23:58,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 03:23:58,048 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:23:58,049 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 03:23:58,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 03:23:58,049 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:23:58,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:23:58,050 INFO L82 PathProgramCache]: Analyzing trace with hash 428186316, now seen corresponding path program 1 times [2020-10-16 03:23:58,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:23:58,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499588495] [2020-10-16 03:23:58,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:23:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:23:58,150 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 03:23:58,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499588495] [2020-10-16 03:23:58,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:23:58,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 03:23:58,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188461225] [2020-10-16 03:23:58,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 03:23:58,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:23:58,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 03:23:58,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 03:23:58,155 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 146 [2020-10-16 03:23:58,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 29 transitions, 64 flow. Second operand 3 states. [2020-10-16 03:23:58,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:23:58,156 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 146 [2020-10-16 03:23:58,156 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:23:58,194 INFO L129 PetriNetUnfolder]: 9/47 cut-off events. [2020-10-16 03:23:58,194 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 03:23:58,194 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 03:23:58,195 INFO L132 encePairwiseOnDemand]: 141/146 looper letters, 7 selfloop transitions, 2 changer transitions 1/27 dead transitions. [2020-10-16 03:23:58,195 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 27 transitions, 80 flow [2020-10-16 03:23:58,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 03:23:58,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 03:23:58,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2020-10-16 03:23:58,201 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8082191780821918 [2020-10-16 03:23:58,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 354 transitions. [2020-10-16 03:23:58,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 354 transitions. [2020-10-16 03:23:58,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:23:58,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 354 transitions. [2020-10-16 03:23:58,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 03:23:58,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 03:23:58,207 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 03:23:58,207 INFO L185 Difference]: Start difference. First operand has 29 places, 29 transitions, 64 flow. Second operand 3 states and 354 transitions. [2020-10-16 03:23:58,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 27 transitions, 80 flow [2020-10-16 03:23:58,208 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 03:23:58,210 INFO L241 Difference]: Finished difference. Result has 31 places, 26 transitions, 70 flow [2020-10-16 03:23:58,210 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 03:23:58,211 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2020-10-16 03:23:58,211 INFO L481 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 70 flow [2020-10-16 03:23:58,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 03:23:58,212 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:23:58,212 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 03:23:58,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 03:23:58,212 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:23:58,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:23:58,213 INFO L82 PathProgramCache]: Analyzing trace with hash 620591748, now seen corresponding path program 1 times [2020-10-16 03:23:58,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:23:58,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625526138] [2020-10-16 03:23:58,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:23:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:23:58,303 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 03:23:58,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625526138] [2020-10-16 03:23:58,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:23:58,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:23:58,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80395627] [2020-10-16 03:23:58,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 03:23:58,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:23:58,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 03:23:58,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 03:23:58,309 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 146 [2020-10-16 03:23:58,310 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 70 flow. Second operand 3 states. [2020-10-16 03:23:58,310 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:23:58,310 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 146 [2020-10-16 03:23:58,310 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:23:58,353 INFO L129 PetriNetUnfolder]: 3/38 cut-off events. [2020-10-16 03:23:58,354 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 03:23:58,354 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 03:23:58,355 INFO L132 encePairwiseOnDemand]: 140/146 looper letters, 1 selfloop transitions, 6 changer transitions 0/26 dead transitions. [2020-10-16 03:23:58,355 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 26 transitions, 84 flow [2020-10-16 03:23:58,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 03:23:58,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 03:23:58,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2020-10-16 03:23:58,360 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6872146118721462 [2020-10-16 03:23:58,364 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2020-10-16 03:23:58,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2020-10-16 03:23:58,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:23:58,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2020-10-16 03:23:58,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 03:23:58,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 03:23:58,370 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 03:23:58,370 INFO L185 Difference]: Start difference. First operand has 31 places, 26 transitions, 70 flow. Second operand 3 states and 301 transitions. [2020-10-16 03:23:58,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 26 transitions, 84 flow [2020-10-16 03:23:58,371 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 03:23:58,372 INFO L241 Difference]: Finished difference. Result has 31 places, 26 transitions, 78 flow [2020-10-16 03:23:58,373 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 03:23:58,373 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2020-10-16 03:23:58,373 INFO L481 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 78 flow [2020-10-16 03:23:58,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 03:23:58,374 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:23:58,374 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 03:23:58,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 03:23:58,374 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:23:58,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:23:58,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1110557248, now seen corresponding path program 2 times [2020-10-16 03:23:58,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:23:58,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961234452] [2020-10-16 03:23:58,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:23:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:23:58,511 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 03:23:58,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961234452] [2020-10-16 03:23:58,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:23:58,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 03:23:58,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061685586] [2020-10-16 03:23:58,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:23:58,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:23:58,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:23:58,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:23:58,516 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 146 [2020-10-16 03:23:58,516 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 78 flow. Second operand 5 states. [2020-10-16 03:23:58,516 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:23:58,517 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 146 [2020-10-16 03:23:58,517 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:23:58,567 INFO L129 PetriNetUnfolder]: 2/37 cut-off events. [2020-10-16 03:23:58,567 INFO L130 PetriNetUnfolder]: For 2/6 co-relation queries the response was YES. [2020-10-16 03:23:58,567 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 03:23:58,568 INFO L132 encePairwiseOnDemand]: 141/146 looper letters, 4 selfloop transitions, 4 changer transitions 0/25 dead transitions. [2020-10-16 03:23:58,568 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 25 transitions, 91 flow [2020-10-16 03:23:58,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:23:58,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:23:58,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 359 transitions. [2020-10-16 03:23:58,571 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.4917808219178082 [2020-10-16 03:23:58,571 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 359 transitions. [2020-10-16 03:23:58,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 359 transitions. [2020-10-16 03:23:58,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:23:58,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 359 transitions. [2020-10-16 03:23:58,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:23:58,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:23:58,574 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:23:58,575 INFO L185 Difference]: Start difference. First operand has 31 places, 26 transitions, 78 flow. Second operand 5 states and 359 transitions. [2020-10-16 03:23:58,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 25 transitions, 91 flow [2020-10-16 03:23:58,575 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 03:23:58,576 INFO L241 Difference]: Finished difference. Result has 34 places, 25 transitions, 77 flow [2020-10-16 03:23:58,576 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 03:23:58,577 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2020-10-16 03:23:58,577 INFO L481 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 77 flow [2020-10-16 03:23:58,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:23:58,577 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:23:58,577 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 03:23:58,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 03:23:58,578 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:23:58,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:23:58,578 INFO L82 PathProgramCache]: Analyzing trace with hash -438382186, now seen corresponding path program 2 times [2020-10-16 03:23:58,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:23:58,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461636948] [2020-10-16 03:23:58,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:23:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:23:58,688 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 03:23:58,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461636948] [2020-10-16 03:23:58,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:23:58,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 03:23:58,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957150083] [2020-10-16 03:23:58,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 03:23:58,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:23:58,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 03:23:58,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 03:23:58,692 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 146 [2020-10-16 03:23:58,693 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 77 flow. Second operand 8 states. [2020-10-16 03:23:58,693 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:23:58,694 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 146 [2020-10-16 03:23:58,694 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:23:58,771 INFO L129 PetriNetUnfolder]: 3/39 cut-off events. [2020-10-16 03:23:58,771 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-10-16 03:23:58,772 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 03:23:58,772 INFO L132 encePairwiseOnDemand]: 137/146 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2020-10-16 03:23:58,772 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 24 transitions, 99 flow [2020-10-16 03:23:58,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 03:23:58,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-16 03:23:58,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 967 transitions. [2020-10-16 03:23:58,776 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7359208523592086 [2020-10-16 03:23:58,777 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 967 transitions. [2020-10-16 03:23:58,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 967 transitions. [2020-10-16 03:23:58,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:23:58,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 967 transitions. [2020-10-16 03:23:58,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-16 03:23:58,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-16 03:23:58,783 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-16 03:23:58,783 INFO L185 Difference]: Start difference. First operand has 34 places, 25 transitions, 77 flow. Second operand 9 states and 967 transitions. [2020-10-16 03:23:58,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 24 transitions, 99 flow [2020-10-16 03:23:58,784 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 03:23:58,785 INFO L241 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2020-10-16 03:23:58,785 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 03:23:58,785 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, 5 predicate places. [2020-10-16 03:23:58,785 INFO L481 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2020-10-16 03:23:58,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 03:23:58,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 03:23:58,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:23:58 BasicIcfg [2020-10-16 03:23:58,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 03:23:58,792 INFO L168 Benchmark]: Toolchain (without parser) took 5990.22 ms. Allocated memory was 251.1 MB in the beginning and 429.4 MB in the end (delta: 178.3 MB). Free memory was 206.2 MB in the beginning and 294.9 MB in the end (delta: -88.7 MB). Peak memory consumption was 89.5 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:58,793 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 251.1 MB. Free memory was 229.2 MB in the beginning and 228.3 MB in the end (delta: 838.8 kB). Peak memory consumption was 838.8 kB. Max. memory is 14.2 GB. [2020-10-16 03:23:58,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 939.48 ms. Allocated memory was 251.1 MB in the beginning and 313.5 MB in the end (delta: 62.4 MB). Free memory was 206.2 MB in the beginning and 246.2 MB in the end (delta: -40.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:58,795 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.66 ms. Allocated memory is still 313.5 MB. Free memory was 246.2 MB in the beginning and 243.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:58,796 INFO L168 Benchmark]: Boogie Preprocessor took 37.93 ms. Allocated memory is still 313.5 MB. Free memory was 243.6 MB in the beginning and 242.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:58,797 INFO L168 Benchmark]: RCFGBuilder took 505.83 ms. Allocated memory is still 313.5 MB. Free memory was 242.0 MB in the beginning and 214.9 MB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:58,798 INFO L168 Benchmark]: TraceAbstraction took 4446.86 ms. Allocated memory was 313.5 MB in the beginning and 429.4 MB in the end (delta: 115.9 MB). Free memory was 214.9 MB in the beginning and 294.9 MB in the end (delta: -80.0 MB). Peak memory consumption was 35.9 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:58,802 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 251.1 MB. Free memory was 229.2 MB in the beginning and 228.3 MB in the end (delta: 838.8 kB). Peak memory consumption was 838.8 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 939.48 ms. Allocated memory was 251.1 MB in the beginning and 313.5 MB in the end (delta: 62.4 MB). Free memory was 206.2 MB in the beginning and 246.2 MB in the end (delta: -40.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 54.66 ms. Allocated memory is still 313.5 MB. Free memory was 246.2 MB in the beginning and 243.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 37.93 ms. Allocated memory is still 313.5 MB. Free memory was 243.6 MB in the beginning and 242.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 505.83 ms. Allocated memory is still 313.5 MB. Free memory was 242.0 MB in the beginning and 214.9 MB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 14.2 GB. * TraceAbstraction took 4446.86 ms. Allocated memory was 313.5 MB in the beginning and 429.4 MB in the end (delta: 115.9 MB). Free memory was 214.9 MB in the beginning and 294.9 MB in the end (delta: -80.0 MB). Peak memory consumption was 35.9 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: 0.2s, 225 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.1s, 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: 4.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 19 SDtfs, 28 SDslu, 13 SDs, 0 SdLazy, 56 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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, 0.3s 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...