/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-lit/fkp2014.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 15:49:30,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 15:49:30,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 15:49:30,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 15:49:30,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 15:49:30,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 15:49:30,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 15:49:30,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 15:49:30,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 15:49:30,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 15:49:30,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 15:49:30,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 15:49:30,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 15:49:30,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 15:49:30,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 15:49:30,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 15:49:30,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 15:49:30,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 15:49:30,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 15:49:30,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 15:49:30,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 15:49:30,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 15:49:30,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 15:49:30,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 15:49:30,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 15:49:30,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 15:49:30,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 15:49:30,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 15:49:30,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 15:49:30,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 15:49:30,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 15:49:30,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 15:49:30,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 15:49:30,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 15:49:30,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 15:49:30,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 15:49:30,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 15:49:30,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 15:49:30,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 15:49:30,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 15:49:30,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 15:49:30,931 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-McrStrategy.epf [2020-04-18 15:49:30,956 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 15:49:30,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 15:49:30,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 15:49:30,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 15:49:30,958 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 15:49:30,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 15:49:30,959 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 15:49:30,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 15:49:30,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 15:49:30,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 15:49:30,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 15:49:30,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 15:49:30,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 15:49:30,961 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 15:49:30,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 15:49:30,962 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 15:49:30,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 15:49:30,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 15:49:30,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 15:49:30,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 15:49:30,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 15:49:30,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 15:49:30,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 15:49:30,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 15:49:30,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 15:49:30,964 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 15:49:30,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 15:49:30,964 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 15:49:30,964 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 15:49:30,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 15:49:30,966 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 15:49:31,300 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 15:49:31,320 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 15:49:31,324 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 15:49:31,325 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 15:49:31,326 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 15:49:31,327 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2014.i [2020-04-18 15:49:31,390 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/589d6da56/a04449334c3f4506be6818031573d2af/FLAG3acda8a49 [2020-04-18 15:49:31,929 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 15:49:31,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2014.i [2020-04-18 15:49:31,942 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/589d6da56/a04449334c3f4506be6818031573d2af/FLAG3acda8a49 [2020-04-18 15:49:32,244 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/589d6da56/a04449334c3f4506be6818031573d2af [2020-04-18 15:49:32,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 15:49:32,270 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 15:49:32,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 15:49:32,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 15:49:32,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 15:49:32,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:49:32" (1/1) ... [2020-04-18 15:49:32,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d425ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:32, skipping insertion in model container [2020-04-18 15:49:32,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:49:32" (1/1) ... [2020-04-18 15:49:32,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 15:49:32,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 15:49:32,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:49:32,814 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 15:49:32,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:49:32,969 INFO L208 MainTranslator]: Completed translation [2020-04-18 15:49:32,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:32 WrapperNode [2020-04-18 15:49:32,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 15:49:32,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 15:49:32,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 15:49:32,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 15:49:32,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:32" (1/1) ... [2020-04-18 15:49:33,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:32" (1/1) ... [2020-04-18 15:49:33,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 15:49:33,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 15:49:33,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 15:49:33,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 15:49:33,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:32" (1/1) ... [2020-04-18 15:49:33,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:32" (1/1) ... [2020-04-18 15:49:33,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:32" (1/1) ... [2020-04-18 15:49:33,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:32" (1/1) ... [2020-04-18 15:49:33,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:32" (1/1) ... [2020-04-18 15:49:33,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:32" (1/1) ... [2020-04-18 15:49:33,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:32" (1/1) ... [2020-04-18 15:49:33,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 15:49:33,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 15:49:33,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 15:49:33,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 15:49:33,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 15:49:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 15:49:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 15:49:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2020-04-18 15:49:33,135 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2020-04-18 15:49:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 15:49:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 15:49:33,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 15:49:33,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 15:49:33,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 15:49:33,139 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 15:49:33,486 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 15:49:33,486 INFO L295 CfgBuilder]: Removed 13 assume(true) statements. [2020-04-18 15:49:33,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:49:33 BoogieIcfgContainer [2020-04-18 15:49:33,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 15:49:33,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 15:49:33,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 15:49:33,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 15:49:33,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:49:32" (1/3) ... [2020-04-18 15:49:33,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe41fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:49:33, skipping insertion in model container [2020-04-18 15:49:33,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:32" (2/3) ... [2020-04-18 15:49:33,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe41fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:49:33, skipping insertion in model container [2020-04-18 15:49:33,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:49:33" (3/3) ... [2020-04-18 15:49:33,498 INFO L109 eAbstractionObserver]: Analyzing ICFG fkp2014.i [2020-04-18 15:49:33,506 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 15:49:33,506 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 15:49:33,512 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 15:49:33,513 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 15:49:33,533 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,534 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,534 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,535 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,535 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,535 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,536 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,536 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,536 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,537 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,537 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,537 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,538 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,538 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,538 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,539 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,542 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,543 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,543 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,543 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,543 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,544 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,544 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,545 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:33,569 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 15:49:33,586 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:49:33,587 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:49:33,587 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:49:33,587 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:49:33,587 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:49:33,588 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:49:33,588 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:49:33,588 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:49:33,603 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 50 transitions, 105 flow [2020-04-18 15:49:33,605 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 50 places, 50 transitions, 105 flow [2020-04-18 15:49:33,644 INFO L129 PetriNetUnfolder]: 4/59 cut-off events. [2020-04-18 15:49:33,644 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:49:33,649 INFO L80 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 59 events. 4/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 30. Up to 4 conditions per place. [2020-04-18 15:49:33,652 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 50 places, 50 transitions, 105 flow [2020-04-18 15:49:33,670 INFO L129 PetriNetUnfolder]: 4/59 cut-off events. [2020-04-18 15:49:33,671 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:49:33,672 INFO L80 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 59 events. 4/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 30. Up to 4 conditions per place. [2020-04-18 15:49:33,674 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 392 [2020-04-18 15:49:33,675 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:49:34,920 INFO L206 etLargeBlockEncoding]: Checked pairs total: 278 [2020-04-18 15:49:34,921 INFO L214 etLargeBlockEncoding]: Total number of compositions: 50 [2020-04-18 15:49:34,925 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 11 places, 8 transitions, 21 flow [2020-04-18 15:49:34,936 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2020-04-18 15:49:34,938 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-04-18 15:49:34,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-18 15:49:34,945 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:49:34,946 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-04-18 15:49:34,946 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:49:34,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:34,953 INFO L82 PathProgramCache]: Analyzing trace with hash 6946921, now seen corresponding path program 1 times [2020-04-18 15:49:34,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:49:34,961 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [98729072] [2020-04-18 15:49:34,978 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:34,990 INFO L259 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-04-18 15:49:34,991 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-04-18 15:49:34,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-18 15:49:34,992 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:49:34,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:34,993 INFO L82 PathProgramCache]: Analyzing trace with hash 6946921, now seen corresponding path program 2 times [2020-04-18 15:49:34,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:34,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36278827] [2020-04-18 15:49:34,998 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:35,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:49:35,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36278827] [2020-04-18 15:49:35,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:35,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 15:49:35,257 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:35,259 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:35,261 INFO L259 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-04-18 15:49:35,261 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:35,276 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:49:35,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:49:35,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:49:35,283 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2020-04-18 15:49:35,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:35,287 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2020-04-18 15:49:35,287 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2020-04-18 15:49:35,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:49:35,289 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [98729072] [2020-04-18 15:49:35,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:49:35,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1 [2020-04-18 15:49:35,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [98729072] [2020-04-18 15:49:35,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 15:49:35,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:49:35,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:49:35,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:49:35,298 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2020-04-18 15:49:35,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:35,307 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2020-04-18 15:49:35,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 15:49:35,309 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-04-18 15:49:35,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:49:35,329 INFO L225 Difference]: With dead ends: 14 [2020-04-18 15:49:35,335 INFO L226 Difference]: Without dead ends: 11 [2020-04-18 15:49:35,337 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:49:35,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-04-18 15:49:35,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-04-18 15:49:35,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-04-18 15:49:35,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-04-18 15:49:35,383 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-04-18 15:49:35,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:49:35,385 INFO L479 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-04-18 15:49:35,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 15:49:35,392 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-04-18 15:49:35,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 15:49:35,393 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:49:35,393 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-04-18 15:49:35,393 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:49:35,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:35,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1913958713, now seen corresponding path program 1 times [2020-04-18 15:49:35,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:49:35,395 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1899932673] [2020-04-18 15:49:35,396 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:35,397 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 15:49:35,397 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-04-18 15:49:35,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 15:49:35,398 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:49:35,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:35,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1913958713, now seen corresponding path program 2 times [2020-04-18 15:49:35,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:35,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599425702] [2020-04-18 15:49:35,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 15:49:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 15:49:35,517 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 15:49:35,517 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 15:49:35,518 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 15:49:35,518 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-04-18 15:49:35,519 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 15:49:35,520 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-04-18 15:49:35,532 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,532 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,532 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,533 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,533 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,533 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,533 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,534 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,534 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,534 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,534 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,534 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,535 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,535 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,536 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,536 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,536 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,536 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,537 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,537 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,537 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,537 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,537 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,538 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,538 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,538 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,538 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,538 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,544 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,545 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,545 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,545 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,546 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,546 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,546 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,546 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,547 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,547 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,547 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,547 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,549 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,549 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,549 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,550 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,550 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,550 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,550 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,550 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:35,552 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 15:49:35,552 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:49:35,553 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:49:35,553 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:49:35,553 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:49:35,553 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:49:35,553 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:49:35,553 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:49:35,553 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:49:35,556 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 65 transitions, 142 flow [2020-04-18 15:49:35,556 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 66 places, 65 transitions, 142 flow [2020-04-18 15:49:35,578 INFO L129 PetriNetUnfolder]: 6/87 cut-off events. [2020-04-18 15:49:35,579 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-04-18 15:49:35,580 INFO L80 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 87 events. 6/87 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 133 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 60. Up to 6 conditions per place. [2020-04-18 15:49:35,585 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 66 places, 65 transitions, 142 flow [2020-04-18 15:49:35,619 INFO L129 PetriNetUnfolder]: 6/87 cut-off events. [2020-04-18 15:49:35,619 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-04-18 15:49:35,620 INFO L80 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 87 events. 6/87 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 133 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 60. Up to 6 conditions per place. [2020-04-18 15:49:35,623 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1204 [2020-04-18 15:49:35,624 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:49:36,626 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1769 [2020-04-18 15:49:36,626 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-04-18 15:49:36,627 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 18 transitions, 48 flow [2020-04-18 15:49:36,637 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 209 states. [2020-04-18 15:49:36,637 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states. [2020-04-18 15:49:36,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 15:49:36,638 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:49:36,638 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-04-18 15:49:36,638 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:49:36,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:36,638 INFO L82 PathProgramCache]: Analyzing trace with hash 349336416, now seen corresponding path program 1 times [2020-04-18 15:49:36,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:49:36,639 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [616793421] [2020-04-18 15:49:36,639 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:36,640 INFO L259 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-04-18 15:49:36,640 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-04-18 15:49:36,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 15:49:36,641 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:49:36,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:36,641 INFO L82 PathProgramCache]: Analyzing trace with hash 349336416, now seen corresponding path program 2 times [2020-04-18 15:49:36,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:36,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772350378] [2020-04-18 15:49:36,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:36,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:49:36,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772350378] [2020-04-18 15:49:36,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:36,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:49:36,689 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:36,690 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:36,691 INFO L259 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-04-18 15:49:36,691 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:36,700 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:49:36,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:49:36,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:49:36,701 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2020-04-18 15:49:36,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:36,709 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2020-04-18 15:49:36,709 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-04-18 15:49:36,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:49:36,710 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [616793421] [2020-04-18 15:49:36,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:49:36,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:49:36,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [616793421] [2020-04-18 15:49:36,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:49:36,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:49:36,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:49:36,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:49:36,711 INFO L87 Difference]: Start difference. First operand 209 states. Second operand 4 states. [2020-04-18 15:49:36,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:36,760 INFO L93 Difference]: Finished difference Result 168 states and 345 transitions. [2020-04-18 15:49:36,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 15:49:36,762 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-04-18 15:49:36,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:49:36,765 INFO L225 Difference]: With dead ends: 168 [2020-04-18 15:49:36,766 INFO L226 Difference]: Without dead ends: 151 [2020-04-18 15:49:36,766 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:49:36,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-04-18 15:49:36,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 136. [2020-04-18 15:49:36,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-04-18 15:49:36,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 286 transitions. [2020-04-18 15:49:36,786 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 286 transitions. Word has length 5 [2020-04-18 15:49:36,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:49:36,786 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 286 transitions. [2020-04-18 15:49:36,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:49:36,786 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 286 transitions. [2020-04-18 15:49:36,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 15:49:36,787 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:49:36,787 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-04-18 15:49:36,787 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:49:36,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:36,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1641713045, now seen corresponding path program 1 times [2020-04-18 15:49:36,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:49:36,788 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1128008362] [2020-04-18 15:49:36,788 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:36,789 INFO L259 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-04-18 15:49:36,789 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-04-18 15:49:36,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 15:49:36,790 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:49:36,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:36,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1641713045, now seen corresponding path program 2 times [2020-04-18 15:49:36,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:36,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217429354] [2020-04-18 15:49:36,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 15:49:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 15:49:36,822 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 15:49:36,822 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 15:49:36,822 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 15:49:36,822 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-04-18 15:49:36,823 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 15:49:36,825 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-04-18 15:49:36,832 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,832 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,832 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,833 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,833 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,833 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,833 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,833 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,833 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,834 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,834 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,834 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,834 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,834 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,835 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,835 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,835 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,835 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,835 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,836 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,836 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,836 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,836 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,836 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,836 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,837 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,837 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,837 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,837 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,837 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,838 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,838 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,838 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,838 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,838 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,838 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,839 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,839 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,839 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,840 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,840 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,840 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,840 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,840 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,840 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,840 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,841 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,841 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,841 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,841 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,842 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,842 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,842 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,842 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,842 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,842 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,849 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,849 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,850 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,850 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,850 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,850 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,850 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,850 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,852 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,852 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,852 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,852 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,853 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,853 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,853 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,853 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:36,855 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-18 15:49:36,855 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:49:36,855 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:49:36,855 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:49:36,855 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:49:36,856 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:49:36,856 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:49:36,856 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:49:36,856 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:49:36,858 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 80 transitions, 181 flow [2020-04-18 15:49:36,859 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 181 flow [2020-04-18 15:49:36,889 INFO L129 PetriNetUnfolder]: 8/115 cut-off events. [2020-04-18 15:49:36,889 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-04-18 15:49:36,890 INFO L80 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 115 events. 8/115 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 211 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 91. Up to 8 conditions per place. [2020-04-18 15:49:36,893 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 181 flow [2020-04-18 15:49:36,908 INFO L129 PetriNetUnfolder]: 8/115 cut-off events. [2020-04-18 15:49:36,908 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-04-18 15:49:36,909 INFO L80 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 115 events. 8/115 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 211 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 91. Up to 8 conditions per place. [2020-04-18 15:49:36,913 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2436 [2020-04-18 15:49:36,913 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:49:38,029 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3671 [2020-04-18 15:49:38,030 INFO L214 etLargeBlockEncoding]: Total number of compositions: 76 [2020-04-18 15:49:38,030 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 24 transitions, 69 flow [2020-04-18 15:49:38,080 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1079 states. [2020-04-18 15:49:38,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states. [2020-04-18 15:49:38,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 15:49:38,081 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:49:38,081 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-04-18 15:49:38,082 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:49:38,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:38,082 INFO L82 PathProgramCache]: Analyzing trace with hash 514919980, now seen corresponding path program 1 times [2020-04-18 15:49:38,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:49:38,083 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1219028060] [2020-04-18 15:49:38,083 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:38,084 INFO L259 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-04-18 15:49:38,084 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-04-18 15:49:38,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 15:49:38,085 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:49:38,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:38,085 INFO L82 PathProgramCache]: Analyzing trace with hash 514919980, now seen corresponding path program 2 times [2020-04-18 15:49:38,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:38,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109147372] [2020-04-18 15:49:38,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:38,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:49:38,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109147372] [2020-04-18 15:49:38,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:38,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:49:38,132 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:38,133 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:38,134 INFO L259 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-04-18 15:49:38,134 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:38,147 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:49:38,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:49:38,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:49:38,148 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2020-04-18 15:49:38,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:38,154 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2020-04-18 15:49:38,154 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-04-18 15:49:38,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:49:38,154 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1219028060] [2020-04-18 15:49:38,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:49:38,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:49:38,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1219028060] [2020-04-18 15:49:38,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:49:38,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:49:38,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:49:38,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:49:38,157 INFO L87 Difference]: Start difference. First operand 1079 states. Second operand 4 states. [2020-04-18 15:49:38,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:38,262 INFO L93 Difference]: Finished difference Result 701 states and 1990 transitions. [2020-04-18 15:49:38,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 15:49:38,268 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-04-18 15:49:38,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:49:38,278 INFO L225 Difference]: With dead ends: 701 [2020-04-18 15:49:38,278 INFO L226 Difference]: Without dead ends: 680 [2020-04-18 15:49:38,279 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:49:38,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2020-04-18 15:49:38,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 680. [2020-04-18 15:49:38,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 680 states. [2020-04-18 15:49:38,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 1926 transitions. [2020-04-18 15:49:38,369 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 1926 transitions. Word has length 5 [2020-04-18 15:49:38,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:49:38,371 INFO L479 AbstractCegarLoop]: Abstraction has 680 states and 1926 transitions. [2020-04-18 15:49:38,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:49:38,371 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 1926 transitions. [2020-04-18 15:49:38,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:49:38,372 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:49:38,373 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:49:38,373 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:49:38,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:38,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1141892837, now seen corresponding path program 1 times [2020-04-18 15:49:38,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:49:38,374 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1954134476] [2020-04-18 15:49:38,375 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:38,376 INFO L259 McrAutomatonBuilder]: Finished intersection with 27 states and 40 transitions. [2020-04-18 15:49:38,376 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-04-18 15:49:38,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:49:38,377 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:49:38,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:38,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1141892837, now seen corresponding path program 2 times [2020-04-18 15:49:38,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:38,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643797015] [2020-04-18 15:49:38,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:38,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-04-18 15:49:38,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643797015] [2020-04-18 15:49:38,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:38,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 15:49:38,477 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:38,478 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:38,480 INFO L259 McrAutomatonBuilder]: Finished intersection with 14 states and 14 transitions. [2020-04-18 15:49:38,480 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:38,510 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:49:38,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:49:38,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:49:38,510 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 7 states. [2020-04-18 15:49:38,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:38,567 INFO L93 Difference]: Finished difference Result 27 states and 40 transitions. [2020-04-18 15:49:38,567 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2020-04-18 15:49:38,567 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:49:38,568 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1954134476] [2020-04-18 15:49:38,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:49:38,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 15:49:38,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1954134476] [2020-04-18 15:49:38,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 15:49:38,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:49:38,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:49:38,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-04-18 15:49:38,570 INFO L87 Difference]: Start difference. First operand 680 states and 1926 transitions. Second operand 7 states. [2020-04-18 15:49:38,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:38,740 INFO L93 Difference]: Finished difference Result 601 states and 1663 transitions. [2020-04-18 15:49:38,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 15:49:38,741 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-04-18 15:49:38,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:49:38,746 INFO L225 Difference]: With dead ends: 601 [2020-04-18 15:49:38,746 INFO L226 Difference]: Without dead ends: 559 [2020-04-18 15:49:38,747 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-04-18 15:49:38,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-04-18 15:49:38,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 524. [2020-04-18 15:49:38,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-04-18 15:49:38,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1472 transitions. [2020-04-18 15:49:38,765 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1472 transitions. Word has length 12 [2020-04-18 15:49:38,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:49:38,765 INFO L479 AbstractCegarLoop]: Abstraction has 524 states and 1472 transitions. [2020-04-18 15:49:38,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 15:49:38,765 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1472 transitions. [2020-04-18 15:49:38,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 15:49:38,767 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:49:38,767 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2020-04-18 15:49:38,768 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:49:38,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:38,768 INFO L82 PathProgramCache]: Analyzing trace with hash -93833612, now seen corresponding path program 1 times [2020-04-18 15:49:38,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:49:38,768 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1117055877] [2020-04-18 15:49:38,769 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:38,770 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions. [2020-04-18 15:49:38,770 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-04-18 15:49:38,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 15:49:38,771 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:49:38,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:38,771 INFO L82 PathProgramCache]: Analyzing trace with hash -93833612, now seen corresponding path program 2 times [2020-04-18 15:49:38,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:38,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237635406] [2020-04-18 15:49:38,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 15:49:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 15:49:38,831 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 15:49:38,832 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 15:49:38,832 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 15:49:38,837 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-04-18 15:49:38,838 WARN L363 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 15:49:38,838 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-04-18 15:49:38,848 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,849 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,849 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,849 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,849 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,849 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,850 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,850 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,850 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,850 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,850 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,850 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,851 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,851 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,851 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,851 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,852 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,852 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,852 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,852 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,852 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,852 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,852 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,853 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,853 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,853 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,853 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,853 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,854 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,854 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,854 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,854 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,854 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,854 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,854 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,855 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,855 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,855 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,855 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,855 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,855 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,856 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,856 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,856 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,856 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,856 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,856 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,857 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,857 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,857 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,857 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,857 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,857 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,858 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,858 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,858 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,858 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,858 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,858 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,859 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,859 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,859 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,859 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,859 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,860 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,860 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,860 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,860 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,860 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,861 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,861 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,861 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,862 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,863 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,863 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,863 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,863 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,863 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,864 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,864 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,868 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,869 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,869 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,869 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,869 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,869 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,870 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,870 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,871 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,872 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,872 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,872 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,872 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,872 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,872 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,872 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:38,874 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-04-18 15:49:38,874 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:49:38,874 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:49:38,874 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:49:38,875 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:49:38,875 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:49:38,875 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:49:38,875 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:49:38,875 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:49:38,877 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 95 transitions, 222 flow [2020-04-18 15:49:38,877 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 98 places, 95 transitions, 222 flow [2020-04-18 15:49:38,894 INFO L129 PetriNetUnfolder]: 10/143 cut-off events. [2020-04-18 15:49:38,895 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-04-18 15:49:38,896 INFO L80 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 143 events. 10/143 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 275 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 123. Up to 10 conditions per place. [2020-04-18 15:49:38,901 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 98 places, 95 transitions, 222 flow [2020-04-18 15:49:38,917 INFO L129 PetriNetUnfolder]: 10/143 cut-off events. [2020-04-18 15:49:38,917 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-04-18 15:49:38,918 INFO L80 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 143 events. 10/143 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 275 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 123. Up to 10 conditions per place. [2020-04-18 15:49:38,923 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4088 [2020-04-18 15:49:38,923 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:49:40,369 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6947 [2020-04-18 15:49:40,369 INFO L214 etLargeBlockEncoding]: Total number of compositions: 92 [2020-04-18 15:49:40,370 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 30 transitions, 92 flow [2020-04-18 15:49:40,867 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6514 states. [2020-04-18 15:49:40,867 INFO L276 IsEmpty]: Start isEmpty. Operand 6514 states. [2020-04-18 15:49:40,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 15:49:40,868 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:49:40,868 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-04-18 15:49:40,868 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:49:40,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:40,869 INFO L82 PathProgramCache]: Analyzing trace with hash 711608770, now seen corresponding path program 1 times [2020-04-18 15:49:40,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:49:40,869 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [230584326] [2020-04-18 15:49:40,869 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:40,870 INFO L259 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-04-18 15:49:40,870 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-04-18 15:49:40,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 15:49:40,870 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:49:40,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:40,871 INFO L82 PathProgramCache]: Analyzing trace with hash 711608770, now seen corresponding path program 2 times [2020-04-18 15:49:40,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:40,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817823718] [2020-04-18 15:49:40,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:40,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:49:40,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817823718] [2020-04-18 15:49:40,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:40,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:49:40,902 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:40,902 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:40,903 INFO L259 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-04-18 15:49:40,903 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:40,928 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:49:40,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:49:40,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:49:40,929 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2020-04-18 15:49:40,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:40,934 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2020-04-18 15:49:40,934 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-04-18 15:49:40,935 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:49:40,935 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [230584326] [2020-04-18 15:49:40,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:49:40,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:49:40,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [230584326] [2020-04-18 15:49:40,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:49:40,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:49:40,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:49:40,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:49:40,937 INFO L87 Difference]: Start difference. First operand 6514 states. Second operand 4 states. [2020-04-18 15:49:41,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:41,105 INFO L93 Difference]: Finished difference Result 8088 states and 26360 transitions. [2020-04-18 15:49:41,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 15:49:41,106 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-04-18 15:49:41,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:49:41,173 INFO L225 Difference]: With dead ends: 8088 [2020-04-18 15:49:41,173 INFO L226 Difference]: Without dead ends: 7903 [2020-04-18 15:49:41,173 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:49:41,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7903 states. [2020-04-18 15:49:41,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7903 to 6788. [2020-04-18 15:49:41,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6788 states. [2020-04-18 15:49:41,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6788 states to 6788 states and 23152 transitions. [2020-04-18 15:49:41,554 INFO L78 Accepts]: Start accepts. Automaton has 6788 states and 23152 transitions. Word has length 5 [2020-04-18 15:49:41,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:49:41,554 INFO L479 AbstractCegarLoop]: Abstraction has 6788 states and 23152 transitions. [2020-04-18 15:49:41,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:49:41,554 INFO L276 IsEmpty]: Start isEmpty. Operand 6788 states and 23152 transitions. [2020-04-18 15:49:41,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:49:41,555 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:49:41,556 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:49:41,556 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:49:41,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:41,556 INFO L82 PathProgramCache]: Analyzing trace with hash -873709060, now seen corresponding path program 1 times [2020-04-18 15:49:41,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:49:41,557 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [879257782] [2020-04-18 15:49:41,557 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:41,558 INFO L259 McrAutomatonBuilder]: Finished intersection with 31 states and 48 transitions. [2020-04-18 15:49:41,559 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-04-18 15:49:41,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:49:41,559 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:49:41,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:41,560 INFO L82 PathProgramCache]: Analyzing trace with hash -120295600, now seen corresponding path program 2 times [2020-04-18 15:49:41,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:41,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119328957] [2020-04-18 15:49:41,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:41,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-04-18 15:49:41,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119328957] [2020-04-18 15:49:41,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:41,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:49:41,631 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:41,633 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:41,636 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 38 transitions. [2020-04-18 15:49:41,636 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:41,656 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:49:41,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:49:41,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:49:41,657 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-04-18 15:49:41,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:41,701 INFO L93 Difference]: Finished difference Result 34 states and 51 transitions. [2020-04-18 15:49:41,701 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 51 transitions. [2020-04-18 15:49:41,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:49:41,702 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:49:41,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:41,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1140808880, now seen corresponding path program 3 times [2020-04-18 15:49:41,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:41,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429868954] [2020-04-18 15:49:41,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:41,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:49:41,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429868954] [2020-04-18 15:49:41,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:41,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:49:41,771 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:41,775 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:41,777 INFO L259 McrAutomatonBuilder]: Finished intersection with 17 states and 20 transitions. [2020-04-18 15:49:41,777 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:41,785 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:49:41,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:49:41,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:49:41,786 INFO L87 Difference]: Start difference. First operand 34 states and 51 transitions. Second operand 5 states. [2020-04-18 15:49:41,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:41,810 INFO L93 Difference]: Finished difference Result 34 states and 51 transitions. [2020-04-18 15:49:41,810 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 51 transitions. [2020-04-18 15:49:41,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:49:41,810 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [879257782] [2020-04-18 15:49:41,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:49:41,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:49:41,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [879257782] [2020-04-18 15:49:41,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 15:49:41,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:49:41,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 15:49:41,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:49:41,813 INFO L87 Difference]: Start difference. First operand 6788 states and 23152 transitions. Second operand 6 states. [2020-04-18 15:49:42,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:42,042 INFO L93 Difference]: Finished difference Result 5572 states and 18127 transitions. [2020-04-18 15:49:42,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 15:49:42,042 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-04-18 15:49:42,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:49:42,089 INFO L225 Difference]: With dead ends: 5572 [2020-04-18 15:49:42,089 INFO L226 Difference]: Without dead ends: 5332 [2020-04-18 15:49:42,089 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-04-18 15:49:42,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5332 states. [2020-04-18 15:49:42,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5332 to 3755. [2020-04-18 15:49:42,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3755 states. [2020-04-18 15:49:42,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3755 states to 3755 states and 13066 transitions. [2020-04-18 15:49:42,362 INFO L78 Accepts]: Start accepts. Automaton has 3755 states and 13066 transitions. Word has length 12 [2020-04-18 15:49:42,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:49:42,363 INFO L479 AbstractCegarLoop]: Abstraction has 3755 states and 13066 transitions. [2020-04-18 15:49:42,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 15:49:42,364 INFO L276 IsEmpty]: Start isEmpty. Operand 3755 states and 13066 transitions. [2020-04-18 15:49:42,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 15:49:42,366 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:49:42,366 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:49:42,366 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:49:42,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:42,367 INFO L82 PathProgramCache]: Analyzing trace with hash -681881088, now seen corresponding path program 1 times [2020-04-18 15:49:42,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:49:42,367 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [636509703] [2020-04-18 15:49:42,368 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:42,371 INFO L259 McrAutomatonBuilder]: Finished intersection with 131 states and 295 transitions. [2020-04-18 15:49:42,374 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2020-04-18 15:49:42,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 15:49:42,375 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:49:42,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:42,375 INFO L82 PathProgramCache]: Analyzing trace with hash 548740370, now seen corresponding path program 2 times [2020-04-18 15:49:42,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:42,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506961543] [2020-04-18 15:49:42,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:42,462 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-04-18 15:49:42,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506961543] [2020-04-18 15:49:42,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:42,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 15:49:42,464 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:42,466 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:42,477 INFO L259 McrAutomatonBuilder]: Finished intersection with 62 states and 107 transitions. [2020-04-18 15:49:42,477 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:42,505 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 15:49:42,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 15:49:42,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 15:49:42,506 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 6 states. [2020-04-18 15:49:42,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:42,637 INFO L93 Difference]: Finished difference Result 203 states and 424 transitions. [2020-04-18 15:49:42,637 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 424 transitions. [2020-04-18 15:49:42,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 15:49:42,638 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:49:42,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:42,639 INFO L82 PathProgramCache]: Analyzing trace with hash 233330514, now seen corresponding path program 3 times [2020-04-18 15:49:42,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:42,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104598114] [2020-04-18 15:49:42,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:42,705 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-04-18 15:49:42,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104598114] [2020-04-18 15:49:42,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:42,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:49:42,706 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:42,708 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:42,715 INFO L259 McrAutomatonBuilder]: Finished intersection with 54 states and 91 transitions. [2020-04-18 15:49:42,715 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:42,748 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 15:49:42,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:49:42,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 15:49:42,749 INFO L87 Difference]: Start difference. First operand 203 states and 424 transitions. Second operand 7 states. [2020-04-18 15:49:42,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:42,870 INFO L93 Difference]: Finished difference Result 217 states and 449 transitions. [2020-04-18 15:49:42,870 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 449 transitions. [2020-04-18 15:49:42,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 15:49:42,871 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 15:49:42,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:42,872 INFO L82 PathProgramCache]: Analyzing trace with hash 856745416, now seen corresponding path program 4 times [2020-04-18 15:49:42,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:42,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319297492] [2020-04-18 15:49:42,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:42,940 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:49:42,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319297492] [2020-04-18 15:49:42,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:42,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 15:49:42,941 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:42,943 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:42,950 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 51 transitions. [2020-04-18 15:49:42,950 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:42,964 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:49:42,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 15:49:42,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=129, Unknown=0, NotChecked=0, Total=210 [2020-04-18 15:49:42,964 INFO L87 Difference]: Start difference. First operand 217 states and 449 transitions. Second operand 6 states. [2020-04-18 15:49:43,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:43,026 INFO L93 Difference]: Finished difference Result 217 states and 449 transitions. [2020-04-18 15:49:43,026 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 449 transitions. [2020-04-18 15:49:43,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:49:43,027 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [636509703] [2020-04-18 15:49:43,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:49:43,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 15:49:43,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [636509703] [2020-04-18 15:49:43,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-04-18 15:49:43,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:49:43,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-18 15:49:43,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=129, Unknown=0, NotChecked=0, Total=210 [2020-04-18 15:49:43,029 INFO L87 Difference]: Start difference. First operand 3755 states and 13066 transitions. Second operand 10 states. [2020-04-18 15:49:43,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:43,249 INFO L93 Difference]: Finished difference Result 3465 states and 12264 transitions. [2020-04-18 15:49:43,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 15:49:43,249 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2020-04-18 15:49:43,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:49:43,270 INFO L225 Difference]: With dead ends: 3465 [2020-04-18 15:49:43,270 INFO L226 Difference]: Without dead ends: 3187 [2020-04-18 15:49:43,271 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=152, Unknown=0, NotChecked=0, Total=240 [2020-04-18 15:49:43,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3187 states. [2020-04-18 15:49:43,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3187 to 2428. [2020-04-18 15:49:43,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2428 states. [2020-04-18 15:49:43,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 8885 transitions. [2020-04-18 15:49:43,357 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 8885 transitions. Word has length 19 [2020-04-18 15:49:43,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:49:43,358 INFO L479 AbstractCegarLoop]: Abstraction has 2428 states and 8885 transitions. [2020-04-18 15:49:43,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-04-18 15:49:43,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 8885 transitions. [2020-04-18 15:49:43,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 15:49:43,363 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:49:43,363 INFO L425 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2020-04-18 15:49:43,363 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:49:43,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:43,363 INFO L82 PathProgramCache]: Analyzing trace with hash -2136951318, now seen corresponding path program 1 times [2020-04-18 15:49:43,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:49:43,364 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [236079166] [2020-04-18 15:49:43,364 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:43,365 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 19 transitions. [2020-04-18 15:49:43,365 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-04-18 15:49:43,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 15:49:43,366 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:49:43,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:43,366 INFO L82 PathProgramCache]: Analyzing trace with hash -2136951318, now seen corresponding path program 2 times [2020-04-18 15:49:43,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:43,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650945762] [2020-04-18 15:49:43,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 15:49:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 15:49:43,402 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 15:49:43,403 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 15:49:43,403 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 15:49:43,403 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-04-18 15:49:43,404 WARN L363 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 15:49:43,405 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-04-18 15:49:43,487 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,488 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,488 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,488 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,488 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,488 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,488 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,488 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,489 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,489 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,489 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,489 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,489 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,489 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,490 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,490 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,491 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,491 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,491 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,491 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,491 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,492 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,492 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,493 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,493 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,493 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,493 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,493 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,493 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,494 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,494 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,494 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,494 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,494 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,494 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,494 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,495 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,495 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,495 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,496 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,496 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,496 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,496 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,496 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,497 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,497 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,497 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,497 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,497 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,497 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,498 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,498 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,498 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,498 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,498 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,498 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,498 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,499 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,499 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,499 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,499 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,499 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,499 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,500 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,500 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,500 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,500 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,500 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,500 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,500 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,501 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,501 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,501 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,501 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,501 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,501 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,501 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,502 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,502 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,502 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,503 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,503 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,504 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,504 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,504 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,504 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,504 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,504 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,506 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,506 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,506 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,506 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,506 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,507 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,507 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,507 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,508 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,508 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,508 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,509 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,509 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,509 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,509 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,509 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,511 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,511 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,511 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,511 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,511 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,512 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,512 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,512 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,514 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,514 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,514 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,514 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,515 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,515 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,515 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,515 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:43,517 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-04-18 15:49:43,517 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:49:43,517 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:49:43,517 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:49:43,518 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:49:43,518 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:49:43,518 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:49:43,518 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:49:43,518 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:49:43,520 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 110 transitions, 265 flow [2020-04-18 15:49:43,521 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 114 places, 110 transitions, 265 flow [2020-04-18 15:49:43,542 INFO L129 PetriNetUnfolder]: 12/171 cut-off events. [2020-04-18 15:49:43,542 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-04-18 15:49:43,544 INFO L80 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 171 events. 12/171 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 373 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 156. Up to 12 conditions per place. [2020-04-18 15:49:43,551 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 114 places, 110 transitions, 265 flow [2020-04-18 15:49:43,569 INFO L129 PetriNetUnfolder]: 12/171 cut-off events. [2020-04-18 15:49:43,570 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-04-18 15:49:43,571 INFO L80 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 171 events. 12/171 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 373 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 156. Up to 12 conditions per place. [2020-04-18 15:49:43,578 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 6160 [2020-04-18 15:49:43,579 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:49:44,982 INFO L206 etLargeBlockEncoding]: Checked pairs total: 11695 [2020-04-18 15:49:44,983 INFO L214 etLargeBlockEncoding]: Total number of compositions: 107 [2020-04-18 15:49:44,983 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 39 transitions, 123 flow [2020-04-18 15:49:53,835 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 45394 states. [2020-04-18 15:49:53,835 INFO L276 IsEmpty]: Start isEmpty. Operand 45394 states. [2020-04-18 15:49:53,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 15:49:53,836 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:49:53,836 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-04-18 15:49:53,836 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:49:53,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:53,836 INFO L82 PathProgramCache]: Analyzing trace with hash 936004228, now seen corresponding path program 1 times [2020-04-18 15:49:53,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:49:53,837 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [922238912] [2020-04-18 15:49:53,837 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:53,837 INFO L259 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-04-18 15:49:53,837 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-04-18 15:49:53,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 15:49:53,838 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:49:53,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:53,838 INFO L82 PathProgramCache]: Analyzing trace with hash 936004228, now seen corresponding path program 2 times [2020-04-18 15:49:53,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:53,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307607918] [2020-04-18 15:49:53,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:53,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:49:53,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307607918] [2020-04-18 15:49:53,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:53,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:49:53,877 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:53,877 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:53,877 INFO L259 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-04-18 15:49:53,877 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:53,894 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:49:53,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:49:53,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:49:53,895 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2020-04-18 15:49:53,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:53,898 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2020-04-18 15:49:53,898 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-04-18 15:49:53,898 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:49:53,899 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [922238912] [2020-04-18 15:49:53,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:49:53,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:49:53,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [922238912] [2020-04-18 15:49:53,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:49:53,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:49:53,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:49:53,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:49:53,900 INFO L87 Difference]: Start difference. First operand 45394 states. Second operand 4 states. [2020-04-18 15:49:54,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:54,117 INFO L93 Difference]: Finished difference Result 19082 states and 83599 transitions. [2020-04-18 15:49:54,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 15:49:54,117 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-04-18 15:49:54,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:49:54,221 INFO L225 Difference]: With dead ends: 19082 [2020-04-18 15:49:54,221 INFO L226 Difference]: Without dead ends: 19002 [2020-04-18 15:49:54,222 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:49:54,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19002 states. [2020-04-18 15:49:55,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19002 to 19002. [2020-04-18 15:49:55,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19002 states. [2020-04-18 15:49:55,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19002 states to 19002 states and 83189 transitions. [2020-04-18 15:49:55,360 INFO L78 Accepts]: Start accepts. Automaton has 19002 states and 83189 transitions. Word has length 5 [2020-04-18 15:49:55,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:49:55,361 INFO L479 AbstractCegarLoop]: Abstraction has 19002 states and 83189 transitions. [2020-04-18 15:49:55,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:49:55,361 INFO L276 IsEmpty]: Start isEmpty. Operand 19002 states and 83189 transitions. [2020-04-18 15:49:55,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:49:55,361 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:49:55,361 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:49:55,361 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:49:55,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:55,362 INFO L82 PathProgramCache]: Analyzing trace with hash 163860184, now seen corresponding path program 1 times [2020-04-18 15:49:55,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:49:55,362 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1379927307] [2020-04-18 15:49:55,363 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:55,363 INFO L259 McrAutomatonBuilder]: Finished intersection with 27 states and 40 transitions. [2020-04-18 15:49:55,363 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-04-18 15:49:55,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:49:55,364 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:49:55,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:55,364 INFO L82 PathProgramCache]: Analyzing trace with hash 163860184, now seen corresponding path program 2 times [2020-04-18 15:49:55,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:55,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350731847] [2020-04-18 15:49:55,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:55,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-04-18 15:49:55,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350731847] [2020-04-18 15:49:55,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:55,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 15:49:55,417 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:55,418 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:55,419 INFO L259 McrAutomatonBuilder]: Finished intersection with 14 states and 14 transitions. [2020-04-18 15:49:55,420 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:55,449 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:49:55,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:49:55,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:49:55,450 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 7 states. [2020-04-18 15:49:55,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:55,494 INFO L93 Difference]: Finished difference Result 30 states and 43 transitions. [2020-04-18 15:49:55,494 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2020-04-18 15:49:55,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:49:55,494 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:49:55,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:55,495 INFO L82 PathProgramCache]: Analyzing trace with hash 163709524, now seen corresponding path program 3 times [2020-04-18 15:49:55,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:55,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141580980] [2020-04-18 15:49:55,495 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:55,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-04-18 15:49:55,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141580980] [2020-04-18 15:49:55,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:55,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 15:49:55,543 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:55,544 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:55,545 INFO L259 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2020-04-18 15:49:55,545 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:55,555 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:49:55,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 15:49:55,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-04-18 15:49:55,556 INFO L87 Difference]: Start difference. First operand 30 states and 43 transitions. Second operand 6 states. [2020-04-18 15:49:55,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:55,588 INFO L93 Difference]: Finished difference Result 32 states and 44 transitions. [2020-04-18 15:49:55,588 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2020-04-18 15:49:55,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:49:55,589 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1379927307] [2020-04-18 15:49:55,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:49:55,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 15:49:55,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1379927307] [2020-04-18 15:49:55,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 15:49:55,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:49:55,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 15:49:55,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-04-18 15:49:55,591 INFO L87 Difference]: Start difference. First operand 19002 states and 83189 transitions. Second operand 8 states. [2020-04-18 15:49:56,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:56,040 INFO L93 Difference]: Finished difference Result 22748 states and 85211 transitions. [2020-04-18 15:49:56,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 15:49:56,040 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-04-18 15:49:56,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:49:56,120 INFO L225 Difference]: With dead ends: 22748 [2020-04-18 15:49:56,120 INFO L226 Difference]: Without dead ends: 22680 [2020-04-18 15:49:56,120 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-04-18 15:49:56,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22680 states. [2020-04-18 15:49:58,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22680 to 17238. [2020-04-18 15:49:58,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17238 states. [2020-04-18 15:49:58,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17238 states to 17238 states and 66121 transitions. [2020-04-18 15:49:58,374 INFO L78 Accepts]: Start accepts. Automaton has 17238 states and 66121 transitions. Word has length 12 [2020-04-18 15:49:58,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:49:58,374 INFO L479 AbstractCegarLoop]: Abstraction has 17238 states and 66121 transitions. [2020-04-18 15:49:58,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 15:49:58,374 INFO L276 IsEmpty]: Start isEmpty. Operand 17238 states and 66121 transitions. [2020-04-18 15:49:58,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 15:49:58,376 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:49:58,376 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:49:58,376 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:49:58,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:58,377 INFO L82 PathProgramCache]: Analyzing trace with hash 82870751, now seen corresponding path program 1 times [2020-04-18 15:49:58,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:49:58,377 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [614073409] [2020-04-18 15:49:58,378 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:58,379 INFO L259 McrAutomatonBuilder]: Finished intersection with 111 states and 243 transitions. [2020-04-18 15:49:58,380 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2020-04-18 15:49:58,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 15:49:58,381 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:49:58,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:58,381 INFO L82 PathProgramCache]: Analyzing trace with hash 82920971, now seen corresponding path program 2 times [2020-04-18 15:49:58,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:58,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728787065] [2020-04-18 15:49:58,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:58,435 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-04-18 15:49:58,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728787065] [2020-04-18 15:49:58,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203227380] [2020-04-18 15:49:58,436 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:49:58,508 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-04-18 15:49:58,508 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 15:49:58,510 INFO L264 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2020-04-18 15:49:58,512 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 15:49:58,546 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 15:49:58,558 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-04-18 15:49:58,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:49:58,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2020-04-18 15:49:58,559 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:58,561 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:58,566 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 47 transitions. [2020-04-18 15:49:58,566 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:58,650 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 15:49:58,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 15:49:58,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-04-18 15:49:58,651 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 9 states. [2020-04-18 15:49:59,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:59,382 INFO L93 Difference]: Finished difference Result 182 states and 376 transitions. [2020-04-18 15:49:59,382 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 376 transitions. [2020-04-18 15:49:59,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 15:49:59,383 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:49:59,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:59,384 INFO L82 PathProgramCache]: Analyzing trace with hash 84831191, now seen corresponding path program 3 times [2020-04-18 15:49:59,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:59,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923073718] [2020-04-18 15:49:59,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:59,445 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-04-18 15:49:59,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923073718] [2020-04-18 15:49:59,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3913492] [2020-04-18 15:49:59,445 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:49:59,510 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-04-18 15:49:59,510 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 15:49:59,511 INFO L264 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2020-04-18 15:49:59,512 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 15:49:59,588 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-04-18 15:49:59,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 15:49:59,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 11 [2020-04-18 15:49:59,589 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:59,591 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:59,595 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 47 transitions. [2020-04-18 15:49:59,596 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:59,789 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 8 times. [2020-04-18 15:49:59,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 15:49:59,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=779, Unknown=0, NotChecked=0, Total=992 [2020-04-18 15:49:59,790 INFO L87 Difference]: Start difference. First operand 182 states and 376 transitions. Second operand 17 states. [2020-04-18 15:50:00,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:50:00,248 INFO L93 Difference]: Finished difference Result 184 states and 378 transitions. [2020-04-18 15:50:00,248 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 378 transitions. [2020-04-18 15:50:00,249 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:50:00,249 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [614073409] [2020-04-18 15:50:00,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:50:00,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 15:50:00,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [614073409] [2020-04-18 15:50:00,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-04-18 15:50:00,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:50:00,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-18 15:50:00,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=867, Unknown=0, NotChecked=0, Total=1122 [2020-04-18 15:50:00,251 INFO L87 Difference]: Start difference. First operand 17238 states and 66121 transitions. Second operand 19 states. [2020-04-18 15:50:02,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:50:02,634 INFO L93 Difference]: Finished difference Result 21562 states and 83157 transitions. [2020-04-18 15:50:02,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-04-18 15:50:02,635 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 19 [2020-04-18 15:50:02,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:50:02,688 INFO L225 Difference]: With dead ends: 21562 [2020-04-18 15:50:02,689 INFO L226 Difference]: Without dead ends: 20848 [2020-04-18 15:50:02,690 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 113 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1160 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=673, Invalid=2519, Unknown=0, NotChecked=0, Total=3192 [2020-04-18 15:50:02,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20848 states. [2020-04-18 15:50:04,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20848 to 11051. [2020-04-18 15:50:04,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11051 states. [2020-04-18 15:50:04,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11051 states to 11051 states and 45254 transitions. [2020-04-18 15:50:04,300 INFO L78 Accepts]: Start accepts. Automaton has 11051 states and 45254 transitions. Word has length 19 [2020-04-18 15:50:04,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:50:04,300 INFO L479 AbstractCegarLoop]: Abstraction has 11051 states and 45254 transitions. [2020-04-18 15:50:04,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-04-18 15:50:04,300 INFO L276 IsEmpty]: Start isEmpty. Operand 11051 states and 45254 transitions. [2020-04-18 15:50:04,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-04-18 15:50:04,305 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:50:04,305 INFO L425 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:50:04,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:50:04,712 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:50:04,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:50:04,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1180303404, now seen corresponding path program 1 times [2020-04-18 15:50:04,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:50:04,713 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1697621036] [2020-04-18 15:50:04,714 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:50:04,715 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 23 transitions. [2020-04-18 15:50:04,716 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-04-18 15:50:04,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-04-18 15:50:04,716 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:50:04,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:50:04,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1180303404, now seen corresponding path program 2 times [2020-04-18 15:50:04,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:50:04,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402125272] [2020-04-18 15:50:04,717 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:50:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 15:50:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 15:50:04,740 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 15:50:04,741 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 15:50:04,741 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 15:50:04,741 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-04-18 15:50:04,741 WARN L363 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 15:50:04,742 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-04-18 15:50:04,752 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,753 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,753 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,753 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,753 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,753 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,753 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,753 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,754 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,754 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,754 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,754 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,754 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,754 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,755 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,755 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,755 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,755 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,755 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,756 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,756 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,756 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,756 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,756 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,756 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,756 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,756 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,757 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,757 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,757 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,757 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,757 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,757 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,758 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,758 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,758 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,758 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,758 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,758 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,758 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,759 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,759 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,759 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,759 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,759 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,759 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,759 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,760 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,760 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,760 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,760 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,760 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,760 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,761 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,761 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,761 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,761 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,761 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,761 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,762 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,762 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,762 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,762 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,762 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,762 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,763 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,763 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,763 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,763 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,763 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,763 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,763 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,763 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,764 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,764 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,764 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,764 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,764 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,764 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,764 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,765 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,765 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,765 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,765 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,765 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,765 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,766 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,766 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,766 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,766 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,766 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,767 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,767 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,767 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,767 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,767 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,767 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,768 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,768 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,768 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,768 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,768 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,768 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,769 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,770 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,770 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,770 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,770 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,771 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,771 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,771 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,771 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,772 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,772 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,772 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,772 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,773 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,773 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,773 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,773 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,774 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,774 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,774 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,775 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,775 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,775 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,775 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,775 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,776 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,776 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,777 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,777 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,777 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,777 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,777 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,777 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,779 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,779 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,779 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,779 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,779 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,779 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,780 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,780 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:50:04,781 INFO L251 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-04-18 15:50:04,781 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:50:04,781 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:50:04,781 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:50:04,782 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:50:04,782 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:50:04,782 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:50:04,782 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:50:04,782 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:50:04,783 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 125 transitions, 310 flow [2020-04-18 15:50:04,784 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 130 places, 125 transitions, 310 flow [2020-04-18 15:50:04,806 INFO L129 PetriNetUnfolder]: 14/199 cut-off events. [2020-04-18 15:50:04,806 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-04-18 15:50:04,808 INFO L80 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 199 events. 14/199 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 435 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 190. Up to 14 conditions per place. [2020-04-18 15:50:04,818 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 130 places, 125 transitions, 310 flow [2020-04-18 15:50:04,840 INFO L129 PetriNetUnfolder]: 14/199 cut-off events. [2020-04-18 15:50:04,841 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-04-18 15:50:04,843 INFO L80 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 199 events. 14/199 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 435 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 190. Up to 14 conditions per place. [2020-04-18 15:50:04,850 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 8652 [2020-04-18 15:50:04,850 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:50:06,404 INFO L206 etLargeBlockEncoding]: Checked pairs total: 15305 [2020-04-18 15:50:06,404 INFO L214 etLargeBlockEncoding]: Total number of compositions: 121 [2020-04-18 15:50:06,404 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 44 transitions, 148 flow [2020-04-18 15:51:42,948 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 189154 states. [2020-04-18 15:51:42,948 INFO L276 IsEmpty]: Start isEmpty. Operand 189154 states. [2020-04-18 15:51:42,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 15:51:42,949 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:51:42,949 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-04-18 15:51:42,949 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:51:42,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:51:42,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1187628873, now seen corresponding path program 1 times [2020-04-18 15:51:42,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:51:42,950 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1146590209] [2020-04-18 15:51:42,950 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:51:42,950 INFO L259 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-04-18 15:51:42,950 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-04-18 15:51:42,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 15:51:42,951 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:51:42,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:51:42,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1187628873, now seen corresponding path program 2 times [2020-04-18 15:51:42,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:51:42,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35703793] [2020-04-18 15:51:42,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:51:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:51:43,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:51:43,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35703793] [2020-04-18 15:51:43,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:51:43,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:51:43,022 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:51:43,022 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:51:43,023 INFO L259 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-04-18 15:51:43,023 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:51:43,033 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:51:43,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:51:43,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:51:43,034 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2020-04-18 15:51:43,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:51:43,037 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2020-04-18 15:51:43,037 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-04-18 15:51:43,038 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:51:43,038 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1146590209] [2020-04-18 15:51:43,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:51:43,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:51:43,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1146590209] [2020-04-18 15:51:43,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:51:43,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:51:43,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:51:43,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:51:43,039 INFO L87 Difference]: Start difference. First operand 189154 states. Second operand 4 states. [2020-04-18 15:51:49,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:51:49,719 INFO L93 Difference]: Finished difference Result 137243 states and 715653 transitions. [2020-04-18 15:51:49,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 15:51:49,720 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-04-18 15:51:49,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:51:50,240 INFO L225 Difference]: With dead ends: 137243 [2020-04-18 15:51:50,241 INFO L226 Difference]: Without dead ends: 136922 [2020-04-18 15:51:50,241 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:51:57,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136922 states. [2020-04-18 15:52:05,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136922 to 136922. [2020-04-18 15:52:05,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136922 states. [2020-04-18 15:52:06,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136922 states to 136922 states and 713643 transitions. [2020-04-18 15:52:06,136 INFO L78 Accepts]: Start accepts. Automaton has 136922 states and 713643 transitions. Word has length 5 [2020-04-18 15:52:06,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:52:06,136 INFO L479 AbstractCegarLoop]: Abstraction has 136922 states and 713643 transitions. [2020-04-18 15:52:06,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:52:06,136 INFO L276 IsEmpty]: Start isEmpty. Operand 136922 states and 713643 transitions. [2020-04-18 15:52:06,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:52:06,136 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:52:06,136 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:52:06,137 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:52:06,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:52:06,137 INFO L82 PathProgramCache]: Analyzing trace with hash -466460212, now seen corresponding path program 1 times [2020-04-18 15:52:06,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:52:06,137 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1841397422] [2020-04-18 15:52:06,138 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:52:06,138 INFO L259 McrAutomatonBuilder]: Finished intersection with 31 states and 48 transitions. [2020-04-18 15:52:06,138 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-04-18 15:52:06,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:52:06,139 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:52:06,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:52:06,139 INFO L82 PathProgramCache]: Analyzing trace with hash -466460512, now seen corresponding path program 2 times [2020-04-18 15:52:06,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:52:06,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45631377] [2020-04-18 15:52:06,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:52:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:52:06,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:52:06,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45631377] [2020-04-18 15:52:06,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784554184] [2020-04-18 15:52:06,181 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:52:06,244 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 15:52:06,244 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 15:52:06,245 INFO L264 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2020-04-18 15:52:06,246 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 15:52:06,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:52:06,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:52:06,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2020-04-18 15:52:06,285 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:52:06,286 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:52:06,288 INFO L259 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-04-18 15:52:06,288 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:52:06,333 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:52:06,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 15:52:06,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-04-18 15:52:06,334 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 8 states. [2020-04-18 15:52:06,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:52:06,382 INFO L93 Difference]: Finished difference Result 32 states and 48 transitions. [2020-04-18 15:52:06,382 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2020-04-18 15:52:06,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:52:06,382 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:52:06,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:52:06,383 INFO L82 PathProgramCache]: Analyzing trace with hash -466460212, now seen corresponding path program 3 times [2020-04-18 15:52:06,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:52:06,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430669927] [2020-04-18 15:52:06,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:52:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:52:06,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:52:06,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430669927] [2020-04-18 15:52:06,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940369382] [2020-04-18 15:52:06,429 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:52:06,510 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-04-18 15:52:06,510 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 15:52:06,511 INFO L264 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2020-04-18 15:52:06,514 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 15:52:06,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:52:06,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:52:06,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2020-04-18 15:52:06,588 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:52:06,589 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:52:06,591 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 38 transitions. [2020-04-18 15:52:06,592 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:52:06,728 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 10 times. [2020-04-18 15:52:06,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 15:52:06,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=143, Unknown=0, NotChecked=0, Total=240 [2020-04-18 15:52:06,729 INFO L87 Difference]: Start difference. First operand 32 states and 48 transitions. Second operand 16 states. [2020-04-18 15:52:06,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:52:06,807 INFO L93 Difference]: Finished difference Result 32 states and 48 transitions. [2020-04-18 15:52:06,807 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2020-04-18 15:52:06,807 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:52:06,808 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1841397422] [2020-04-18 15:52:06,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:52:06,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 15:52:06,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1841397422] [2020-04-18 15:52:06,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 15:52:06,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:52:06,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 15:52:06,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=143, Unknown=0, NotChecked=0, Total=240 [2020-04-18 15:52:06,809 INFO L87 Difference]: Start difference. First operand 136922 states and 713643 transitions. Second operand 16 states. [2020-04-18 15:52:14,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:52:14,360 INFO L93 Difference]: Finished difference Result 153700 states and 617892 transitions. [2020-04-18 15:52:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 15:52:14,360 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 12 [2020-04-18 15:52:14,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:52:14,809 INFO L225 Difference]: With dead ends: 153700 [2020-04-18 15:52:14,809 INFO L226 Difference]: Without dead ends: 153440 [2020-04-18 15:52:14,810 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=208, Unknown=0, NotChecked=0, Total=342 [2020-04-18 15:52:18,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153440 states. [2020-04-18 15:52:26,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153440 to 123153. [2020-04-18 15:52:26,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123153 states. [2020-04-18 15:52:27,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123153 states to 123153 states and 524945 transitions. [2020-04-18 15:52:27,053 INFO L78 Accepts]: Start accepts. Automaton has 123153 states and 524945 transitions. Word has length 12 [2020-04-18 15:52:27,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:52:27,053 INFO L479 AbstractCegarLoop]: Abstraction has 123153 states and 524945 transitions. [2020-04-18 15:52:27,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 15:52:27,053 INFO L276 IsEmpty]: Start isEmpty. Operand 123153 states and 524945 transitions. [2020-04-18 15:52:27,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 15:52:27,054 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:52:27,055 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:52:27,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:52:27,457 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:52:27,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:52:27,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1352169137, now seen corresponding path program 1 times [2020-04-18 15:52:27,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:52:27,458 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1196697630] [2020-04-18 15:52:27,459 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:52:27,460 INFO L259 McrAutomatonBuilder]: Finished intersection with 131 states and 295 transitions. [2020-04-18 15:52:27,461 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2020-04-18 15:52:27,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 15:52:27,462 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:52:27,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:52:27,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1352169557, now seen corresponding path program 2 times [2020-04-18 15:52:27,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:52:27,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703383574] [2020-04-18 15:52:27,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:52:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:52:27,513 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:52:27,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703383574] [2020-04-18 15:52:27,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642183296] [2020-04-18 15:52:27,513 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:52:27,596 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 15:52:27,596 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 15:52:27,597 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2020-04-18 15:52:27,598 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 15:52:27,662 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:52:27,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 15:52:27,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2020-04-18 15:52:27,664 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:52:27,666 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:52:27,672 INFO L259 McrAutomatonBuilder]: Finished intersection with 49 states and 77 transitions. [2020-04-18 15:52:27,672 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:52:27,776 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:52:27,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-04-18 15:52:27,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-04-18 15:52:27,777 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 14 states. [2020-04-18 15:52:28,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:52:28,161 INFO L93 Difference]: Finished difference Result 165 states and 354 transitions. [2020-04-18 15:52:28,162 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 354 transitions. [2020-04-18 15:52:28,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 15:52:28,163 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:52:28,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:52:28,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1352109617, now seen corresponding path program 3 times [2020-04-18 15:52:28,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:52:28,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858466664] [2020-04-18 15:52:28,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:52:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:52:28,234 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:52:28,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858466664] [2020-04-18 15:52:28,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883623958] [2020-04-18 15:52:28,235 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:52:28,314 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-04-18 15:52:28,314 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 15:52:28,315 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2020-04-18 15:52:28,316 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 15:52:28,385 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:52:28,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 15:52:28,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 11 [2020-04-18 15:52:28,386 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:52:28,388 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:52:28,394 INFO L259 McrAutomatonBuilder]: Finished intersection with 54 states and 87 transitions. [2020-04-18 15:52:28,395 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:52:28,592 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 12 times. [2020-04-18 15:52:28,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-04-18 15:52:28,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2020-04-18 15:52:28,593 INFO L87 Difference]: Start difference. First operand 165 states and 354 transitions. Second operand 21 states. [2020-04-18 15:52:30,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:52:30,243 INFO L93 Difference]: Finished difference Result 174 states and 363 transitions. [2020-04-18 15:52:30,243 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 363 transitions. [2020-04-18 15:52:30,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 15:52:30,244 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 15:52:30,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:52:30,245 INFO L82 PathProgramCache]: Analyzing trace with hash -240364657, now seen corresponding path program 4 times [2020-04-18 15:52:30,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:52:30,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254549672] [2020-04-18 15:52:30,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:52:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:52:30,298 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-04-18 15:52:30,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254549672] [2020-04-18 15:52:30,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:52:30,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 15:52:30,299 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:52:30,300 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:52:30,307 INFO L259 McrAutomatonBuilder]: Finished intersection with 62 states and 107 transitions. [2020-04-18 15:52:30,307 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:52:30,387 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 9 times. [2020-04-18 15:52:30,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-18 15:52:30,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=691, Unknown=0, NotChecked=0, Total=930 [2020-04-18 15:52:30,388 INFO L87 Difference]: Start difference. First operand 174 states and 363 transitions. Second operand 10 states. [2020-04-18 15:52:30,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:52:30,630 INFO L93 Difference]: Finished difference Result 244 states and 476 transitions. [2020-04-18 15:52:30,630 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 476 transitions. [2020-04-18 15:52:30,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 15:52:30,631 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 15:52:30,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:52:30,631 INFO L82 PathProgramCache]: Analyzing trace with hash -239730397, now seen corresponding path program 5 times [2020-04-18 15:52:30,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:52:30,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27183489] [2020-04-18 15:52:30,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:52:30,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:52:30,694 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-04-18 15:52:30,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27183489] [2020-04-18 15:52:30,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098418365] [2020-04-18 15:52:30,695 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:52:30,776 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2020-04-18 15:52:30,776 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 15:52:30,777 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2020-04-18 15:52:30,778 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 15:52:30,853 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-04-18 15:52:30,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:52:30,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 11 [2020-04-18 15:52:30,854 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:52:30,856 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:52:30,862 INFO L259 McrAutomatonBuilder]: Finished intersection with 54 states and 91 transitions. [2020-04-18 15:52:30,863 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:52:31,299 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 36 times. [2020-04-18 15:52:31,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-04-18 15:52:31,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=1948, Unknown=0, NotChecked=0, Total=2450 [2020-04-18 15:52:31,300 INFO L87 Difference]: Start difference. First operand 244 states and 476 transitions. Second operand 31 states. [2020-04-18 15:52:32,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:52:32,055 INFO L93 Difference]: Finished difference Result 244 states and 476 transitions. [2020-04-18 15:52:32,055 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 476 transitions. [2020-04-18 15:52:32,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:52:32,056 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1196697630] [2020-04-18 15:52:32,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:52:32,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 15:52:32,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1196697630] [2020-04-18 15:52:32,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-04-18 15:52:32,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:52:32,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-04-18 15:52:32,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=1948, Unknown=0, NotChecked=0, Total=2450 [2020-04-18 15:52:32,059 INFO L87 Difference]: Start difference. First operand 123153 states and 524945 transitions. Second operand 45 states. [2020-04-18 15:52:59,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:52:59,932 INFO L93 Difference]: Finished difference Result 257174 states and 984058 transitions. [2020-04-18 15:52:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 259 states. [2020-04-18 15:52:59,933 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 19 [2020-04-18 15:52:59,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:53:00,715 INFO L225 Difference]: With dead ends: 257174 [2020-04-18 15:53:00,715 INFO L226 Difference]: Without dead ends: 248955 [2020-04-18 15:53:00,728 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 296 SyntacticMatches, 8 SemanticMatches, 278 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34180 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=14382, Invalid=63738, Unknown=0, NotChecked=0, Total=78120 [2020-04-18 15:53:02,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248955 states. [2020-04-18 15:53:05,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248955 to 74580. [2020-04-18 15:53:05,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74580 states. [2020-04-18 15:53:05,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74580 states to 74580 states and 336336 transitions. [2020-04-18 15:53:05,616 INFO L78 Accepts]: Start accepts. Automaton has 74580 states and 336336 transitions. Word has length 19 [2020-04-18 15:53:05,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:53:05,616 INFO L479 AbstractCegarLoop]: Abstraction has 74580 states and 336336 transitions. [2020-04-18 15:53:05,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-04-18 15:53:05,616 INFO L276 IsEmpty]: Start isEmpty. Operand 74580 states and 336336 transitions. [2020-04-18 15:53:05,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-04-18 15:53:05,625 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:53:05,625 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:53:06,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:53:06,231 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:53:06,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:53:06,231 INFO L82 PathProgramCache]: Analyzing trace with hash 702128774, now seen corresponding path program 1 times [2020-04-18 15:53:06,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:53:06,232 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1193349363] [2020-04-18 15:53:06,233 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:53:06,242 INFO L259 McrAutomatonBuilder]: Finished intersection with 531 states and 1583 transitions. [2020-04-18 15:53:06,245 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states. [2020-04-18 15:53:06,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-04-18 15:53:06,247 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:53:06,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:53:06,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1167872384, now seen corresponding path program 2 times [2020-04-18 15:53:06,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:53:06,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457453236] [2020-04-18 15:53:06,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:53:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:53:06,328 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-04-18 15:53:06,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457453236] [2020-04-18 15:53:06,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361213188] [2020-04-18 15:53:06,329 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:53:06,405 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 15:53:06,405 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 15:53:06,406 INFO L264 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 9 conjunts are in the unsatisfiable core [2020-04-18 15:53:06,408 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 15:53:06,480 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:53:06,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 15:53:06,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 13 [2020-04-18 15:53:06,481 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:53:06,483 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:53:07,212 INFO L259 McrAutomatonBuilder]: Finished intersection with 93 states and 162 transitions. [2020-04-18 15:53:07,213 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:53:07,359 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 15:53:07,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 15:53:07,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2020-04-18 15:53:07,360 INFO L87 Difference]: Start difference. First operand 531 states. Second operand 18 states. [2020-04-18 15:53:08,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:53:08,759 INFO L93 Difference]: Finished difference Result 847 states and 2375 transitions. [2020-04-18 15:53:08,760 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 2375 transitions. [2020-04-18 15:53:08,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-04-18 15:53:08,762 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:53:08,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:53:08,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1167838844, now seen corresponding path program 3 times [2020-04-18 15:53:08,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:53:08,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846993457] [2020-04-18 15:53:08,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:53:08,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:53:08,829 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-04-18 15:53:08,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846993457] [2020-04-18 15:53:08,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510044399] [2020-04-18 15:53:08,830 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:53:08,907 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-04-18 15:53:08,907 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 15:53:08,908 INFO L264 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjunts are in the unsatisfiable core [2020-04-18 15:53:08,910 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 15:53:08,991 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:53:08,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 15:53:08,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 14 [2020-04-18 15:53:08,992 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:53:08,994 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:53:09,006 INFO L259 McrAutomatonBuilder]: Finished intersection with 98 states and 172 transitions. [2020-04-18 15:53:09,007 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:53:09,192 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 15:53:09,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-04-18 15:53:09,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=691, Unknown=0, NotChecked=0, Total=930 [2020-04-18 15:53:09,193 INFO L87 Difference]: Start difference. First operand 847 states and 2375 transitions. Second operand 26 states. [2020-04-18 15:53:11,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:53:11,506 INFO L93 Difference]: Finished difference Result 892 states and 2465 transitions. [2020-04-18 15:53:11,506 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 2465 transitions. [2020-04-18 15:53:11,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-04-18 15:53:11,509 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 15:53:11,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:53:11,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1688153078, now seen corresponding path program 4 times [2020-04-18 15:53:11,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:53:11,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317989805] [2020-04-18 15:53:11,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:53:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:53:11,588 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-04-18 15:53:11,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317989805] [2020-04-18 15:53:11,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:53:11,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 15:53:11,589 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:53:11,593 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:53:11,615 INFO L259 McrAutomatonBuilder]: Finished intersection with 88 states and 156 transitions. [2020-04-18 15:53:11,616 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:53:11,754 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 8 times. [2020-04-18 15:53:11,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 15:53:11,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=418, Invalid=1142, Unknown=0, NotChecked=0, Total=1560 [2020-04-18 15:53:11,755 INFO L87 Difference]: Start difference. First operand 892 states and 2465 transitions. Second operand 9 states. [2020-04-18 15:53:12,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:53:12,158 INFO L93 Difference]: Finished difference Result 1686 states and 4501 transitions. [2020-04-18 15:53:12,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 4501 transitions. [2020-04-18 15:53:12,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-04-18 15:53:12,163 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 15:53:12,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:53:12,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1753886148, now seen corresponding path program 5 times [2020-04-18 15:53:12,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:53:12,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401541333] [2020-04-18 15:53:12,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:53:12,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:53:12,235 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-04-18 15:53:12,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401541333] [2020-04-18 15:53:12,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005562043] [2020-04-18 15:53:12,236 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:53:12,308 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-04-18 15:53:12,308 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 15:53:12,309 INFO L264 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjunts are in the unsatisfiable core [2020-04-18 15:53:12,311 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 15:53:12,401 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-04-18 15:53:12,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:53:12,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 14 [2020-04-18 15:53:12,402 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:53:12,405 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:53:12,420 INFO L259 McrAutomatonBuilder]: Finished intersection with 81 states and 142 transitions. [2020-04-18 15:53:12,420 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:53:13,073 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 60 times. [2020-04-18 15:53:13,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-04-18 15:53:13,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=863, Invalid=3043, Unknown=0, NotChecked=0, Total=3906 [2020-04-18 15:53:13,075 INFO L87 Difference]: Start difference. First operand 1686 states and 4501 transitions. Second operand 40 states. [2020-04-18 15:53:16,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:53:16,040 INFO L93 Difference]: Finished difference Result 1725 states and 4571 transitions. [2020-04-18 15:53:16,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 4571 transitions. [2020-04-18 15:53:16,043 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:53:16,044 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1193349363] [2020-04-18 15:53:16,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:53:16,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 15:53:16,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1193349363] [2020-04-18 15:53:16,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 55 states [2020-04-18 15:53:16,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:53:16,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2020-04-18 15:53:16,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=863, Invalid=3043, Unknown=0, NotChecked=0, Total=3906 [2020-04-18 15:53:16,045 INFO L87 Difference]: Start difference. First operand 74580 states and 336336 transitions. Second operand 55 states. Received shutdown request... [2020-04-18 15:53:18,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-04-18 15:53:19,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:53:19,267 WARN L544 AbstractCegarLoop]: Verification canceled [2020-04-18 15:53:19,273 WARN L228 ceAbstractionStarter]: Timeout [2020-04-18 15:53:19,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:53:19 BasicIcfg [2020-04-18 15:53:19,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 15:53:19,275 INFO L168 Benchmark]: Toolchain (without parser) took 227020.25 ms. Allocated memory was 147.8 MB in the beginning and 3.9 GB in the end (delta: 3.8 GB). Free memory was 104.5 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2020-04-18 15:53:19,276 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 147.8 MB. Free memory was 124.2 MB in the beginning and 123.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-04-18 15:53:19,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.19 ms. Allocated memory was 147.8 MB in the beginning and 202.4 MB in the end (delta: 54.5 MB). Free memory was 102.5 MB in the beginning and 160.7 MB in the end (delta: -58.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-04-18 15:53:19,277 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.61 ms. Allocated memory is still 202.4 MB. Free memory was 160.7 MB in the beginning and 158.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-04-18 15:53:19,277 INFO L168 Benchmark]: Boogie Preprocessor took 24.48 ms. Allocated memory is still 202.4 MB. Free memory was 158.9 MB in the beginning and 157.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 15:53:19,278 INFO L168 Benchmark]: RCFGBuilder took 434.84 ms. Allocated memory is still 202.4 MB. Free memory was 157.5 MB in the beginning and 137.1 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-04-18 15:53:19,278 INFO L168 Benchmark]: TraceAbstraction took 225781.72 ms. Allocated memory was 202.4 MB in the beginning and 3.9 GB in the end (delta: 3.7 GB). Free memory was 136.5 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2020-04-18 15:53:19,280 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 147.8 MB. Free memory was 124.2 MB in the beginning and 123.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 699.19 ms. Allocated memory was 147.8 MB in the beginning and 202.4 MB in the end (delta: 54.5 MB). Free memory was 102.5 MB in the beginning and 160.7 MB in the end (delta: -58.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.61 ms. Allocated memory is still 202.4 MB. Free memory was 160.7 MB in the beginning and 158.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.48 ms. Allocated memory is still 202.4 MB. Free memory was 158.9 MB in the beginning and 157.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 434.84 ms. Allocated memory is still 202.4 MB. Free memory was 157.5 MB in the beginning and 137.1 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 225781.72 ms. Allocated memory was 202.4 MB in the beginning and 3.9 GB in the end (delta: 3.7 GB). Free memory was 136.5 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 50 ProgramPointsBefore, 11 ProgramPointsAfterwards, 50 TransitionsBefore, 8 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 7 FixpointIterations, 20 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 205 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 278 CheckedPairsTotal, 50 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 66 ProgramPointsBefore, 22 ProgramPointsAfterwards, 65 TransitionsBefore, 18 TransitionsAfterwards, 1204 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 10 ConcurrentYvCompositions, 3 ChoiceCompositions, 628 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1769 CheckedPairsTotal, 58 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 82 ProgramPointsBefore, 29 ProgramPointsAfterwards, 80 TransitionsBefore, 24 TransitionsAfterwards, 2436 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 16 ConcurrentYvCompositions, 3 ChoiceCompositions, 1328 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 3671 CheckedPairsTotal, 76 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 98 ProgramPointsBefore, 37 ProgramPointsAfterwards, 95 TransitionsBefore, 30 TransitionsAfterwards, 4088 CoEnabledTransitionPairs, 7 FixpointIterations, 22 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 17 ConcurrentYvCompositions, 4 ChoiceCompositions, 2226 VarBasedMoverChecksPositive, 46 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 6947 CheckedPairsTotal, 92 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 114 ProgramPointsBefore, 46 ProgramPointsAfterwards, 110 TransitionsBefore, 39 TransitionsAfterwards, 6160 CoEnabledTransitionPairs, 7 FixpointIterations, 23 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 22 ConcurrentYvCompositions, 3 ChoiceCompositions, 3375 VarBasedMoverChecksPositive, 49 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 11695 CheckedPairsTotal, 107 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 130 ProgramPointsBefore, 52 ProgramPointsAfterwards, 125 TransitionsBefore, 44 TransitionsAfterwards, 8652 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 73 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 26 ConcurrentYvCompositions, 3 ChoiceCompositions, 4757 VarBasedMoverChecksPositive, 64 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 15305 CheckedPairsTotal, 121 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 679]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 679). Cancelled while BasicCegarLoop was constructing difference of abstraction (74580states) and FLOYD_HOARE automaton (currently 38 states, 55 states before enhancement),while ReachableStatesComputation was computing reachable states (5891 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 1 error locations. Started 6 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 225.4s, OverallIterations: 19, TraceHistogramMax: 6, AutomataDifference: 50.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 114.1s, HoareTripleCheckerStatistics: 390 SDtfs, 3907 SDslu, 2592 SDs, 0 SdLazy, 9578 SolverSat, 3311 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1289 GetRequests, 781 SyntacticMatches, 32 SemanticMatches, 476 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38971 ImplicationChecksByTransitivity, 22.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=189154occurred 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: 38.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 223402 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown