/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf -i ../../../trunk/examples/svcomp/pthread-lit/fkp2014.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 05:12:49,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 05:12:49,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 05:12:49,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 05:12:49,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 05:12:49,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 05:12:49,503 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 05:12:49,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 05:12:49,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 05:12:49,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 05:12:49,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 05:12:49,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 05:12:49,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 05:12:49,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 05:12:49,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 05:12:49,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 05:12:49,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 05:12:49,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 05:12:49,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 05:12:49,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 05:12:49,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 05:12:49,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 05:12:49,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 05:12:49,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 05:12:49,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 05:12:49,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 05:12:49,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 05:12:49,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 05:12:49,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 05:12:49,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 05:12:49,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 05:12:49,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 05:12:49,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 05:12:49,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 05:12:49,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 05:12:49,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 05:12:49,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 05:12:49,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 05:12:49,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 05:12:49,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 05:12:49,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 05:12:49,564 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf [2020-10-16 05:12:49,599 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 05:12:49,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 05:12:49,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 05:12:49,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 05:12:49,601 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 05:12:49,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 05:12:49,602 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 05:12:49,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 05:12:49,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 05:12:49,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 05:12:49,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 05:12:49,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 05:12:49,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 05:12:49,604 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 05:12:49,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 05:12:49,605 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 05:12:49,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 05:12:49,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 05:12:49,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 05:12:49,606 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 05:12:49,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 05:12:49,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 05:12:49,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 05:12:49,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 05:12:49,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 05:12:49,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 05:12:49,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 05:12:49,608 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 05:12:49,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 05:12:49,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 05:12:49,887 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 05:12:49,892 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 05:12:49,893 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 05:12:49,894 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 05:12:49,894 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2014.i [2020-10-16 05:12:49,964 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ba416bc/5006cea9fc8e40abb194543a6fa5a10b/FLAGb1da1de5b [2020-10-16 05:12:50,454 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 05:12:50,455 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2014.i [2020-10-16 05:12:50,469 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ba416bc/5006cea9fc8e40abb194543a6fa5a10b/FLAGb1da1de5b [2020-10-16 05:12:50,785 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ba416bc/5006cea9fc8e40abb194543a6fa5a10b [2020-10-16 05:12:50,793 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 05:12:50,794 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 05:12:50,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 05:12:50,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 05:12:50,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 05:12:50,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:12:50" (1/1) ... [2020-10-16 05:12:50,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@730c0505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:50, skipping insertion in model container [2020-10-16 05:12:50,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:12:50" (1/1) ... [2020-10-16 05:12:50,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 05:12:50,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 05:12:51,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:12:51,288 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 05:12:51,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:12:51,442 INFO L208 MainTranslator]: Completed translation [2020-10-16 05:12:51,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:51 WrapperNode [2020-10-16 05:12:51,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 05:12:51,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 05:12:51,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 05:12:51,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 05:12:51,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:51" (1/1) ... [2020-10-16 05:12:51,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:51" (1/1) ... [2020-10-16 05:12:51,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 05:12:51,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 05:12:51,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 05:12:51,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 05:12:51,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:51" (1/1) ... [2020-10-16 05:12:51,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:51" (1/1) ... [2020-10-16 05:12:51,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:51" (1/1) ... [2020-10-16 05:12:51,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:51" (1/1) ... [2020-10-16 05:12:51,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:51" (1/1) ... [2020-10-16 05:12:51,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:51" (1/1) ... [2020-10-16 05:12:51,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:51" (1/1) ... [2020-10-16 05:12:51,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 05:12:51,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 05:12:51,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 05:12:51,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 05:12:51,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 05:12:51,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 05:12:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 05:12:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2020-10-16 05:12:51,579 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2020-10-16 05:12:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 05:12:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 05:12:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 05:12:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 05:12:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 05:12:51,581 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 05:12:51,894 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 05:12:51,894 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-10-16 05:12:51,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:12:51 BoogieIcfgContainer [2020-10-16 05:12:51,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 05:12:51,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 05:12:51,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 05:12:51,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 05:12:51,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:12:50" (1/3) ... [2020-10-16 05:12:51,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b83abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:12:51, skipping insertion in model container [2020-10-16 05:12:51,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:51" (2/3) ... [2020-10-16 05:12:51,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b83abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:12:51, skipping insertion in model container [2020-10-16 05:12:51,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:12:51" (3/3) ... [2020-10-16 05:12:51,905 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2014.i [2020-10-16 05:12:51,924 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 05:12:51,930 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 05:12:51,931 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 05:12:51,954 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,955 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,955 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,955 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,956 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,956 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,956 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,956 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,957 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,957 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,957 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,957 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,958 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,958 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,958 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,958 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,967 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,967 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,967 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,968 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,968 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,968 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,968 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,968 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:51,986 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 05:12:52,007 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:12:52,007 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:12:52,008 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:12:52,008 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:12:52,008 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:12:52,008 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:12:52,008 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:12:52,009 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:12:52,019 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 50 places, 50 transitions, 105 flow [2020-10-16 05:12:52,056 INFO L129 PetriNetUnfolder]: 4/59 cut-off events. [2020-10-16 05:12:52,056 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:12:52,064 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. [2020-10-16 05:12:52,064 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 50 transitions, 105 flow [2020-10-16 05:12:52,070 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 50 transitions, 105 flow [2020-10-16 05:12:52,072 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:12:52,075 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 50 transitions, 105 flow [2020-10-16 05:12:52,077 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 50 transitions, 105 flow [2020-10-16 05:12:52,078 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 50 places, 50 transitions, 105 flow [2020-10-16 05:12:52,095 INFO L129 PetriNetUnfolder]: 4/59 cut-off events. [2020-10-16 05:12:52,096 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:12:52,097 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 64 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. [2020-10-16 05:12:52,098 INFO L117 LiptonReduction]: Number of co-enabled transitions 392 [2020-10-16 05:12:53,111 INFO L132 LiptonReduction]: Checked pairs total: 364 [2020-10-16 05:12:53,112 INFO L134 LiptonReduction]: Total number of compositions: 53 [2020-10-16 05:12:53,115 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1045 [2020-10-16 05:12:53,121 INFO L129 PetriNetUnfolder]: 0/4 cut-off events. [2020-10-16 05:12:53,121 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:12:53,121 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:53,122 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2020-10-16 05:12:53,122 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:53,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:53,131 INFO L82 PathProgramCache]: Analyzing trace with hash 6946921, now seen corresponding path program 1 times [2020-10-16 05:12:53,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:53,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232402299] [2020-10-16 05:12:53,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:53,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:53,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232402299] [2020-10-16 05:12:53,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:53,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 05:12:53,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467443171] [2020-10-16 05:12:53,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:12:53,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:53,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:12:53,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:12:53,361 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 103 [2020-10-16 05:12:53,363 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 8 transitions, 21 flow. Second operand 3 states. [2020-10-16 05:12:53,363 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:53,363 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 103 [2020-10-16 05:12:53,365 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:53,381 INFO L129 PetriNetUnfolder]: 0/9 cut-off events. [2020-10-16 05:12:53,381 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:12:53,382 INFO L80 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 9 events. 0/9 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 7 event pairs, 0 based on Foata normal form. 0/7 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-10-16 05:12:53,383 INFO L132 encePairwiseOnDemand]: 100/103 looper letters, 0 selfloop transitions, 2 changer transitions 1/7 dead transitions. [2020-10-16 05:12:53,383 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 7 transitions, 23 flow [2020-10-16 05:12:53,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:12:53,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:12:53,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 207 transitions. [2020-10-16 05:12:53,401 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6699029126213593 [2020-10-16 05:12:53,402 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 207 transitions. [2020-10-16 05:12:53,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 207 transitions. [2020-10-16 05:12:53,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:53,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 207 transitions. [2020-10-16 05:12:53,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:12:53,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:12:53,417 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:12:53,419 INFO L185 Difference]: Start difference. First operand has 11 places, 8 transitions, 21 flow. Second operand 3 states and 207 transitions. [2020-10-16 05:12:53,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 7 transitions, 23 flow [2020-10-16 05:12:53,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 7 transitions, 23 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 05:12:53,424 INFO L241 Difference]: Finished difference. Result has 12 places, 6 transitions, 21 flow [2020-10-16 05:12:53,427 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=19, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=21, PETRI_PLACES=12, PETRI_TRANSITIONS=6} [2020-10-16 05:12:53,428 INFO L342 CegarLoopForPetriNet]: 11 programPoint places, 1 predicate places. [2020-10-16 05:12:53,428 INFO L481 AbstractCegarLoop]: Abstraction has has 12 places, 6 transitions, 21 flow [2020-10-16 05:12:53,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:12:53,428 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:53,428 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2020-10-16 05:12:53,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 05:12:53,429 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:53,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:53,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1913958713, now seen corresponding path program 1 times [2020-10-16 05:12:53,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:53,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759841971] [2020-10-16 05:12:53,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:12:53,458 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:12:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:12:53,472 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:12:53,495 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 05:12:53,495 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 05:12:53,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 05:12:53,497 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 05:12:53,498 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 05:12:53,499 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-16 05:12:53,513 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,513 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,514 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,514 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,514 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,514 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,515 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,515 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,515 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,515 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,515 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,516 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,516 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,516 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,516 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,516 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,517 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,517 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,517 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,517 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,518 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,518 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,518 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,518 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,518 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,519 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,519 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,519 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,519 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,519 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,520 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,520 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,520 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,521 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,521 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,521 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,521 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,521 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,522 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,522 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,526 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,527 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,527 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,527 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,527 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,527 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,528 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,528 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:53,529 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 05:12:53,530 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:12:53,530 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:12:53,530 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:12:53,530 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:12:53,530 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:12:53,530 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:12:53,530 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:12:53,531 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:12:53,533 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 66 places, 65 transitions, 142 flow [2020-10-16 05:12:53,550 INFO L129 PetriNetUnfolder]: 6/87 cut-off events. [2020-10-16 05:12:53,551 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 05:12:53,552 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. [2020-10-16 05:12:53,552 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 65 transitions, 142 flow [2020-10-16 05:12:53,553 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 65 transitions, 142 flow [2020-10-16 05:12:53,553 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:12:53,554 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 65 transitions, 142 flow [2020-10-16 05:12:53,554 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 65 transitions, 142 flow [2020-10-16 05:12:53,554 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 66 places, 65 transitions, 142 flow [2020-10-16 05:12:53,569 INFO L129 PetriNetUnfolder]: 6/87 cut-off events. [2020-10-16 05:12:53,569 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 05:12:53,570 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 141 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. [2020-10-16 05:12:53,572 INFO L117 LiptonReduction]: Number of co-enabled transitions 1204 [2020-10-16 05:12:54,574 INFO L132 LiptonReduction]: Checked pairs total: 1856 [2020-10-16 05:12:54,574 INFO L134 LiptonReduction]: Total number of compositions: 63 [2020-10-16 05:12:54,574 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1021 [2020-10-16 05:12:54,577 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2020-10-16 05:12:54,577 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:12:54,577 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:54,577 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 05:12:54,578 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:54,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:54,578 INFO L82 PathProgramCache]: Analyzing trace with hash 351183459, now seen corresponding path program 1 times [2020-10-16 05:12:54,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:54,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630097247] [2020-10-16 05:12:54,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:54,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:54,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630097247] [2020-10-16 05:12:54,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:54,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:12:54,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540662781] [2020-10-16 05:12:54,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:12:54,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:54,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:12:54,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:12:54,628 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 128 [2020-10-16 05:12:54,628 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 17 transitions, 46 flow. Second operand 4 states. [2020-10-16 05:12:54,628 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:54,628 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 128 [2020-10-16 05:12:54,629 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:54,669 INFO L129 PetriNetUnfolder]: 9/40 cut-off events. [2020-10-16 05:12:54,669 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 05:12:54,670 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 40 events. 9/40 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 82 event pairs, 2 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 56. Up to 15 conditions per place. [2020-10-16 05:12:54,670 INFO L132 encePairwiseOnDemand]: 120/128 looper letters, 12 selfloop transitions, 5 changer transitions 0/24 dead transitions. [2020-10-16 05:12:54,670 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 24 transitions, 94 flow [2020-10-16 05:12:54,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:12:54,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:12:54,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 334 transitions. [2020-10-16 05:12:54,674 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.65234375 [2020-10-16 05:12:54,674 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 334 transitions. [2020-10-16 05:12:54,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 334 transitions. [2020-10-16 05:12:54,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:54,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 334 transitions. [2020-10-16 05:12:54,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:12:54,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:12:54,679 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:12:54,679 INFO L185 Difference]: Start difference. First operand has 21 places, 17 transitions, 46 flow. Second operand 4 states and 334 transitions. [2020-10-16 05:12:54,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 24 transitions, 94 flow [2020-10-16 05:12:54,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 24 transitions, 92 flow, removed 1 selfloop flow, removed 0 redundant places. [2020-10-16 05:12:54,681 INFO L241 Difference]: Finished difference. Result has 26 places, 20 transitions, 79 flow [2020-10-16 05:12:54,681 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=79, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2020-10-16 05:12:54,682 INFO L342 CegarLoopForPetriNet]: 21 programPoint places, 5 predicate places. [2020-10-16 05:12:54,682 INFO L481 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 79 flow [2020-10-16 05:12:54,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:12:54,682 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:54,682 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-10-16 05:12:54,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 05:12:54,683 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:54,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:54,683 INFO L82 PathProgramCache]: Analyzing trace with hash -940648467, now seen corresponding path program 1 times [2020-10-16 05:12:54,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:54,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401641648] [2020-10-16 05:12:54,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:12:54,700 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:12:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:12:54,712 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:12:54,718 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 05:12:54,718 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 05:12:54,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 05:12:54,719 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 05:12:54,719 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 05:12:54,721 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-16 05:12:54,727 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,728 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,728 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,728 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,728 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,728 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,728 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,729 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,729 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,729 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,729 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,729 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,730 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,730 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,730 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,730 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,731 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,731 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,731 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,731 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,731 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,732 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,732 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,732 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,732 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,732 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,732 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,733 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,733 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,733 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,733 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,733 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,734 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,734 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,734 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,734 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,735 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,735 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,735 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,735 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,735 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,735 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,736 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,736 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,736 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,736 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,736 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,737 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,737 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,737 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,737 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,738 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,738 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,738 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,738 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,738 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,740 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,740 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,741 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,741 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,741 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,741 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,741 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,742 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,746 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,746 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,747 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,747 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,747 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,747 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,747 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,747 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:54,748 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 05:12:54,749 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:12:54,749 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:12:54,749 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:12:54,749 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:12:54,749 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:12:54,750 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:12:54,750 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:12:54,750 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:12:54,752 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 181 flow [2020-10-16 05:12:54,768 INFO L129 PetriNetUnfolder]: 8/115 cut-off events. [2020-10-16 05:12:54,768 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-16 05:12:54,769 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 209 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. [2020-10-16 05:12:54,769 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 80 transitions, 181 flow [2020-10-16 05:12:54,770 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 80 transitions, 181 flow [2020-10-16 05:12:54,771 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:12:54,771 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 80 transitions, 181 flow [2020-10-16 05:12:54,771 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 80 transitions, 181 flow [2020-10-16 05:12:54,771 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 181 flow [2020-10-16 05:12:54,784 INFO L129 PetriNetUnfolder]: 8/115 cut-off events. [2020-10-16 05:12:54,785 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-16 05:12:54,786 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 215 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. [2020-10-16 05:12:54,789 INFO L117 LiptonReduction]: Number of co-enabled transitions 2436 [2020-10-16 05:12:56,053 INFO L132 LiptonReduction]: Checked pairs total: 4241 [2020-10-16 05:12:56,053 INFO L134 LiptonReduction]: Total number of compositions: 81 [2020-10-16 05:12:56,054 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1283 [2020-10-16 05:12:56,056 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2020-10-16 05:12:56,056 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:12:56,056 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:56,056 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 05:12:56,057 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:56,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:56,060 INFO L82 PathProgramCache]: Analyzing trace with hash 518765162, now seen corresponding path program 1 times [2020-10-16 05:12:56,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:56,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140449136] [2020-10-16 05:12:56,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:56,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:56,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140449136] [2020-10-16 05:12:56,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:56,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:12:56,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686615700] [2020-10-16 05:12:56,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:12:56,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:56,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:12:56,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:12:56,135 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 161 [2020-10-16 05:12:56,135 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 67 flow. Second operand 4 states. [2020-10-16 05:12:56,136 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:56,136 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 161 [2020-10-16 05:12:56,136 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:56,243 INFO L129 PetriNetUnfolder]: 125/286 cut-off events. [2020-10-16 05:12:56,243 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-16 05:12:56,244 INFO L80 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 286 events. 125/286 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1436 event pairs, 48 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 538. Up to 120 conditions per place. [2020-10-16 05:12:56,247 INFO L132 encePairwiseOnDemand]: 149/161 looper letters, 24 selfloop transitions, 10 changer transitions 0/42 dead transitions. [2020-10-16 05:12:56,247 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 42 transitions, 173 flow [2020-10-16 05:12:56,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:12:56,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:12:56,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 427 transitions. [2020-10-16 05:12:56,251 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6630434782608695 [2020-10-16 05:12:56,269 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 427 transitions. [2020-10-16 05:12:56,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 427 transitions. [2020-10-16 05:12:56,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:56,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 427 transitions. [2020-10-16 05:12:56,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:12:56,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:12:56,273 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:12:56,273 INFO L185 Difference]: Start difference. First operand has 28 places, 23 transitions, 67 flow. Second operand 4 states and 427 transitions. [2020-10-16 05:12:56,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 42 transitions, 173 flow [2020-10-16 05:12:56,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 42 transitions, 167 flow, removed 3 selfloop flow, removed 0 redundant places. [2020-10-16 05:12:56,276 INFO L241 Difference]: Finished difference. Result has 33 places, 30 transitions, 129 flow [2020-10-16 05:12:56,276 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=129, PETRI_PLACES=33, PETRI_TRANSITIONS=30} [2020-10-16 05:12:56,276 INFO L342 CegarLoopForPetriNet]: 28 programPoint places, 5 predicate places. [2020-10-16 05:12:56,276 INFO L481 AbstractCegarLoop]: Abstraction has has 33 places, 30 transitions, 129 flow [2020-10-16 05:12:56,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:12:56,276 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:56,277 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:12:56,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 05:12:56,277 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:56,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:56,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1844302735, now seen corresponding path program 1 times [2020-10-16 05:12:56,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:56,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138680627] [2020-10-16 05:12:56,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:56,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:56,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138680627] [2020-10-16 05:12:56,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:56,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:12:56,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022820935] [2020-10-16 05:12:56,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 05:12:56,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:56,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 05:12:56,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-16 05:12:56,324 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 161 [2020-10-16 05:12:56,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 129 flow. Second operand 5 states. [2020-10-16 05:12:56,324 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:56,324 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 161 [2020-10-16 05:12:56,325 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:56,417 INFO L129 PetriNetUnfolder]: 103/235 cut-off events. [2020-10-16 05:12:56,417 INFO L130 PetriNetUnfolder]: For 143/219 co-relation queries the response was YES. [2020-10-16 05:12:56,418 INFO L80 FinitePrefix]: Finished finitePrefix Result has 704 conditions, 235 events. 103/235 cut-off events. For 143/219 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 988 event pairs, 19 based on Foata normal form. 29/251 useless extension candidates. Maximal degree in co-relation 680. Up to 87 conditions per place. [2020-10-16 05:12:56,420 INFO L132 encePairwiseOnDemand]: 151/161 looper letters, 15 selfloop transitions, 28 changer transitions 0/51 dead transitions. [2020-10-16 05:12:56,420 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 51 transitions, 299 flow [2020-10-16 05:12:56,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 05:12:56,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 05:12:56,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 514 transitions. [2020-10-16 05:12:56,423 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6385093167701863 [2020-10-16 05:12:56,423 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 514 transitions. [2020-10-16 05:12:56,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 514 transitions. [2020-10-16 05:12:56,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:56,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 514 transitions. [2020-10-16 05:12:56,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 05:12:56,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 05:12:56,427 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 05:12:56,427 INFO L185 Difference]: Start difference. First operand has 33 places, 30 transitions, 129 flow. Second operand 5 states and 514 transitions. [2020-10-16 05:12:56,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 51 transitions, 299 flow [2020-10-16 05:12:56,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 51 transitions, 299 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 05:12:56,431 INFO L241 Difference]: Finished difference. Result has 38 places, 45 transitions, 293 flow [2020-10-16 05:12:56,431 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=293, PETRI_PLACES=38, PETRI_TRANSITIONS=45} [2020-10-16 05:12:56,431 INFO L342 CegarLoopForPetriNet]: 28 programPoint places, 10 predicate places. [2020-10-16 05:12:56,431 INFO L481 AbstractCegarLoop]: Abstraction has has 38 places, 45 transitions, 293 flow [2020-10-16 05:12:56,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 05:12:56,432 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:56,432 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2020-10-16 05:12:56,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 05:12:56,432 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:56,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:56,433 INFO L82 PathProgramCache]: Analyzing trace with hash 951423672, now seen corresponding path program 1 times [2020-10-16 05:12:56,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:56,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234905058] [2020-10-16 05:12:56,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:12:56,448 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:12:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:12:56,460 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:12:56,466 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 05:12:56,466 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 05:12:56,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 05:12:56,467 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 05:12:56,467 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 05:12:56,467 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-16 05:12:56,475 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,475 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,475 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,475 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,476 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,476 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,476 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,476 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,476 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,476 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,477 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,477 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,477 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,477 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,477 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,477 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,478 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,478 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,478 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,478 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,478 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,479 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,479 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,479 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,479 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,479 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,479 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,479 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,480 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,480 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,480 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,480 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,480 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,481 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,481 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,481 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,481 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,481 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,481 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,482 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,482 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,482 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,482 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,482 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,482 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,483 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,483 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,483 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,483 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,484 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,484 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,484 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,484 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,484 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,484 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,484 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,485 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,485 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,485 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,485 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,485 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,485 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,486 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,486 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,486 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,486 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,486 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,487 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,487 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,487 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,487 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,487 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,489 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,489 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,490 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,490 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,490 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,490 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,490 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,490 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,493 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,493 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,494 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,494 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,494 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,494 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,494 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,494 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,495 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,496 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,496 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,496 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,496 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,496 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,496 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,497 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:56,497 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 05:12:56,498 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:12:56,498 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:12:56,498 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:12:56,498 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:12:56,498 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:12:56,498 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:12:56,498 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:12:56,499 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:12:56,500 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 98 places, 95 transitions, 222 flow [2020-10-16 05:12:56,515 INFO L129 PetriNetUnfolder]: 10/143 cut-off events. [2020-10-16 05:12:56,515 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-16 05:12:56,516 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. [2020-10-16 05:12:56,517 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 95 transitions, 222 flow [2020-10-16 05:12:56,518 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 95 transitions, 222 flow [2020-10-16 05:12:56,518 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:12:56,518 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 95 transitions, 222 flow [2020-10-16 05:12:56,518 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 95 transitions, 222 flow [2020-10-16 05:12:56,518 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 98 places, 95 transitions, 222 flow [2020-10-16 05:12:56,533 INFO L129 PetriNetUnfolder]: 10/143 cut-off events. [2020-10-16 05:12:56,533 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-16 05:12:56,534 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 289 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. [2020-10-16 05:12:56,539 INFO L117 LiptonReduction]: Number of co-enabled transitions 4088 [2020-10-16 05:12:57,893 INFO L132 LiptonReduction]: Checked pairs total: 7309 [2020-10-16 05:12:57,893 INFO L134 LiptonReduction]: Total number of compositions: 97 [2020-10-16 05:12:57,893 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1375 [2020-10-16 05:12:57,895 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2020-10-16 05:12:57,895 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:12:57,895 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:57,895 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 05:12:57,895 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:57,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:57,896 INFO L82 PathProgramCache]: Analyzing trace with hash 716438952, now seen corresponding path program 1 times [2020-10-16 05:12:57,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:57,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721793824] [2020-10-16 05:12:57,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:57,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:57,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721793824] [2020-10-16 05:12:57,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:57,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:12:57,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963352321] [2020-10-16 05:12:57,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:12:57,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:57,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:12:57,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:12:57,926 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 192 [2020-10-16 05:12:57,927 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 88 flow. Second operand 4 states. [2020-10-16 05:12:57,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:57,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 192 [2020-10-16 05:12:57,927 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:58,129 INFO L129 PetriNetUnfolder]: 851/1324 cut-off events. [2020-10-16 05:12:58,130 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-16 05:12:58,134 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2649 conditions, 1324 events. 851/1324 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 6194 event pairs, 482 based on Foata normal form. 0/1042 useless extension candidates. Maximal degree in co-relation 2604. Up to 1085 conditions per place. [2020-10-16 05:12:58,145 INFO L132 encePairwiseOnDemand]: 177/192 looper letters, 24 selfloop transitions, 9 changer transitions 0/42 dead transitions. [2020-10-16 05:12:58,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 182 flow [2020-10-16 05:12:58,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:12:58,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:12:58,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 495 transitions. [2020-10-16 05:12:58,148 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.64453125 [2020-10-16 05:12:58,148 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 495 transitions. [2020-10-16 05:12:58,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 495 transitions. [2020-10-16 05:12:58,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:58,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 495 transitions. [2020-10-16 05:12:58,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:12:58,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:12:58,152 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:12:58,152 INFO L185 Difference]: Start difference. First operand has 35 places, 28 transitions, 88 flow. Second operand 4 states and 495 transitions. [2020-10-16 05:12:58,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 182 flow [2020-10-16 05:12:58,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 42 transitions, 170 flow, removed 6 selfloop flow, removed 0 redundant places. [2020-10-16 05:12:58,154 INFO L241 Difference]: Finished difference. Result has 40 places, 34 transitions, 143 flow [2020-10-16 05:12:58,155 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=143, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2020-10-16 05:12:58,155 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2020-10-16 05:12:58,155 INFO L481 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 143 flow [2020-10-16 05:12:58,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:12:58,155 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:58,155 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:12:58,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 05:12:58,156 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:58,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:58,156 INFO L82 PathProgramCache]: Analyzing trace with hash -2004550118, now seen corresponding path program 1 times [2020-10-16 05:12:58,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:58,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089557010] [2020-10-16 05:12:58,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:58,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:58,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089557010] [2020-10-16 05:12:58,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204789927] [2020-10-16 05:12:58,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-16 05:12:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:58,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 05:12:58,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 05:12:58,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:58,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 05:12:58,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2020-10-16 05:12:58,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137120919] [2020-10-16 05:12:58,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 05:12:58,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:58,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 05:12:58,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-16 05:12:58,325 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 192 [2020-10-16 05:12:58,326 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 143 flow. Second operand 10 states. [2020-10-16 05:12:58,326 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:58,326 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 192 [2020-10-16 05:12:58,326 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:58,721 INFO L129 PetriNetUnfolder]: 602/1024 cut-off events. [2020-10-16 05:12:58,721 INFO L130 PetriNetUnfolder]: For 408/918 co-relation queries the response was YES. [2020-10-16 05:12:58,726 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2835 conditions, 1024 events. 602/1024 cut-off events. For 408/918 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4959 event pairs, 70 based on Foata normal form. 173/1165 useless extension candidates. Maximal degree in co-relation 2810. Up to 381 conditions per place. [2020-10-16 05:12:58,736 INFO L132 encePairwiseOnDemand]: 178/192 looper letters, 50 selfloop transitions, 39 changer transitions 0/98 dead transitions. [2020-10-16 05:12:58,736 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 98 transitions, 541 flow [2020-10-16 05:12:58,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 05:12:58,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-16 05:12:58,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1114 transitions. [2020-10-16 05:12:58,742 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6446759259259259 [2020-10-16 05:12:58,742 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1114 transitions. [2020-10-16 05:12:58,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1114 transitions. [2020-10-16 05:12:58,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:58,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1114 transitions. [2020-10-16 05:12:58,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-16 05:12:58,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-16 05:12:58,751 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-16 05:12:58,751 INFO L185 Difference]: Start difference. First operand has 40 places, 34 transitions, 143 flow. Second operand 9 states and 1114 transitions. [2020-10-16 05:12:58,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 98 transitions, 541 flow [2020-10-16 05:12:58,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 98 transitions, 532 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 05:12:58,762 INFO L241 Difference]: Finished difference. Result has 53 places, 64 transitions, 449 flow [2020-10-16 05:12:58,762 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=449, PETRI_PLACES=53, PETRI_TRANSITIONS=64} [2020-10-16 05:12:58,762 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 18 predicate places. [2020-10-16 05:12:58,762 INFO L481 AbstractCegarLoop]: Abstraction has has 53 places, 64 transitions, 449 flow [2020-10-16 05:12:58,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 05:12:58,763 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:58,763 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2020-10-16 05:12:58,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-10-16 05:12:58,978 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:58,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:58,978 INFO L82 PathProgramCache]: Analyzing trace with hash 281567236, now seen corresponding path program 1 times [2020-10-16 05:12:58,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:58,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259391636] [2020-10-16 05:12:58,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:12:58,992 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:12:59,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:12:59,002 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:12:59,008 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 05:12:59,008 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 05:12:59,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 05:12:59,009 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 05:12:59,009 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 05:12:59,010 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-16 05:12:59,018 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,018 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,018 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,018 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,018 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,018 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,019 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,019 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,019 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,019 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,019 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,019 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,020 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,020 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,020 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,020 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,020 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,020 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,021 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,021 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,021 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,021 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,021 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,021 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,021 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,021 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,022 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,022 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,022 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,022 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,022 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,022 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,023 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,023 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,023 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,023 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,023 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,023 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,023 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,023 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,024 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,024 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,024 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,024 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,024 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,024 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,024 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,025 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,025 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,025 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,025 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,025 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,025 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,026 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,026 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,026 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,026 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,026 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,026 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,026 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,027 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,027 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,027 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,027 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,027 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,027 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,028 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,028 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,028 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,028 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,028 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,028 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,028 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,029 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,029 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,029 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,029 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,029 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,029 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,029 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,030 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,030 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,030 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,030 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,030 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,031 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,031 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,031 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,032 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,032 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,032 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,033 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,033 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,033 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,033 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,033 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,034 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,035 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,035 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,035 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,035 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,035 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,035 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,035 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,037 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,037 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,037 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,037 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,037 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,037 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,037 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,038 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,039 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,039 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,039 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,039 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,039 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,039 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,040 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,040 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:59,041 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-16 05:12:59,041 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:12:59,041 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:12:59,041 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:12:59,041 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:12:59,041 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:12:59,042 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:12:59,042 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:12:59,042 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:12:59,043 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 114 places, 110 transitions, 265 flow [2020-10-16 05:12:59,060 INFO L129 PetriNetUnfolder]: 12/171 cut-off events. [2020-10-16 05:12:59,060 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-16 05:12:59,062 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 372 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. [2020-10-16 05:12:59,062 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 110 transitions, 265 flow [2020-10-16 05:12:59,063 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 110 transitions, 265 flow [2020-10-16 05:12:59,063 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:12:59,063 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 110 transitions, 265 flow [2020-10-16 05:12:59,064 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 110 transitions, 265 flow [2020-10-16 05:12:59,064 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 114 places, 110 transitions, 265 flow [2020-10-16 05:12:59,079 INFO L129 PetriNetUnfolder]: 12/171 cut-off events. [2020-10-16 05:12:59,079 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-16 05:12:59,081 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 383 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. [2020-10-16 05:12:59,087 INFO L117 LiptonReduction]: Number of co-enabled transitions 6160 [2020-10-16 05:13:00,609 INFO L132 LiptonReduction]: Checked pairs total: 11445 [2020-10-16 05:13:00,609 INFO L134 LiptonReduction]: Total number of compositions: 112 [2020-10-16 05:13:00,609 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1546 [2020-10-16 05:13:00,611 INFO L129 PetriNetUnfolder]: 1/10 cut-off events. [2020-10-16 05:13:00,611 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:13:00,611 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:00,611 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 05:13:00,612 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:00,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:00,612 INFO L82 PathProgramCache]: Analyzing trace with hash 941401394, now seen corresponding path program 1 times [2020-10-16 05:13:00,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:00,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698903627] [2020-10-16 05:13:00,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:00,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:00,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698903627] [2020-10-16 05:13:00,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:13:00,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:13:00,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704536719] [2020-10-16 05:13:00,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:13:00,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:00,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:13:00,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:13:00,650 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 222 [2020-10-16 05:13:00,651 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 113 flow. Second operand 4 states. [2020-10-16 05:13:00,651 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:00,651 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 222 [2020-10-16 05:13:00,651 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:02,893 INFO L129 PetriNetUnfolder]: 11011/16094 cut-off events. [2020-10-16 05:13:02,894 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-16 05:13:02,966 INFO L80 FinitePrefix]: Finished finitePrefix Result has 32192 conditions, 16094 events. 11011/16094 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 1020. Compared 105978 event pairs, 4158 based on Foata normal form. 0/13500 useless extension candidates. Maximal degree in co-relation 32134. Up to 6502 conditions per place. [2020-10-16 05:13:03,123 INFO L132 encePairwiseOnDemand]: 202/222 looper letters, 38 selfloop transitions, 18 changer transitions 0/66 dead transitions. [2020-10-16 05:13:03,123 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 66 transitions, 289 flow [2020-10-16 05:13:03,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:13:03,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:13:03,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 582 transitions. [2020-10-16 05:13:03,127 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6554054054054054 [2020-10-16 05:13:03,128 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 582 transitions. [2020-10-16 05:13:03,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 582 transitions. [2020-10-16 05:13:03,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:03,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 582 transitions. [2020-10-16 05:13:03,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:13:03,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:13:03,134 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:13:03,134 INFO L185 Difference]: Start difference. First operand has 42 places, 34 transitions, 113 flow. Second operand 4 states and 582 transitions. [2020-10-16 05:13:03,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 66 transitions, 289 flow [2020-10-16 05:13:03,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 66 transitions, 269 flow, removed 10 selfloop flow, removed 0 redundant places. [2020-10-16 05:13:03,138 INFO L241 Difference]: Finished difference. Result has 47 places, 48 transitions, 218 flow [2020-10-16 05:13:03,138 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=47, PETRI_TRANSITIONS=48} [2020-10-16 05:13:03,138 INFO L342 CegarLoopForPetriNet]: 42 programPoint places, 5 predicate places. [2020-10-16 05:13:03,138 INFO L481 AbstractCegarLoop]: Abstraction has has 47 places, 48 transitions, 218 flow [2020-10-16 05:13:03,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:13:03,139 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:03,139 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:03,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 05:13:03,139 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:03,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:03,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1398817742, now seen corresponding path program 1 times [2020-10-16 05:13:03,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:03,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311828739] [2020-10-16 05:13:03,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:03,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 05:13:03,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311828739] [2020-10-16 05:13:03,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:13:03,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:13:03,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735817265] [2020-10-16 05:13:03,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 05:13:03,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:03,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 05:13:03,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-16 05:13:03,188 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 222 [2020-10-16 05:13:03,189 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 48 transitions, 218 flow. Second operand 5 states. [2020-10-16 05:13:03,189 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:03,189 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 222 [2020-10-16 05:13:03,190 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:05,079 INFO L129 PetriNetUnfolder]: 9113/13899 cut-off events. [2020-10-16 05:13:05,079 INFO L130 PetriNetUnfolder]: For 8875/19525 co-relation queries the response was YES. [2020-10-16 05:13:05,119 INFO L80 FinitePrefix]: Finished finitePrefix Result has 42503 conditions, 13899 events. 9113/13899 cut-off events. For 8875/19525 co-relation queries the response was YES. Maximal size of possible extension queue 935. Compared 95555 event pairs, 1441 based on Foata normal form. 1831/15577 useless extension candidates. Maximal degree in co-relation 42477. Up to 5170 conditions per place. [2020-10-16 05:13:05,227 INFO L132 encePairwiseOnDemand]: 205/222 looper letters, 46 selfloop transitions, 58 changer transitions 0/114 dead transitions. [2020-10-16 05:13:05,227 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 114 transitions, 694 flow [2020-10-16 05:13:05,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 05:13:05,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 05:13:05,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 721 transitions. [2020-10-16 05:13:05,230 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6495495495495496 [2020-10-16 05:13:05,230 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 721 transitions. [2020-10-16 05:13:05,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 721 transitions. [2020-10-16 05:13:05,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:05,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 721 transitions. [2020-10-16 05:13:05,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 05:13:05,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 05:13:05,235 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 05:13:05,235 INFO L185 Difference]: Start difference. First operand has 47 places, 48 transitions, 218 flow. Second operand 5 states and 721 transitions. [2020-10-16 05:13:05,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 114 transitions, 694 flow [2020-10-16 05:13:05,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 114 transitions, 694 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 05:13:05,242 INFO L241 Difference]: Finished difference. Result has 55 places, 90 transitions, 699 flow [2020-10-16 05:13:05,243 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=699, PETRI_PLACES=55, PETRI_TRANSITIONS=90} [2020-10-16 05:13:05,243 INFO L342 CegarLoopForPetriNet]: 42 programPoint places, 13 predicate places. [2020-10-16 05:13:05,243 INFO L481 AbstractCegarLoop]: Abstraction has has 55 places, 90 transitions, 699 flow [2020-10-16 05:13:05,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 05:13:05,243 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:05,243 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:05,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 05:13:05,244 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:05,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:05,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1964538120, now seen corresponding path program 1 times [2020-10-16 05:13:05,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:05,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773327746] [2020-10-16 05:13:05,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:05,291 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-16 05:13:05,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773327746] [2020-10-16 05:13:05,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:13:05,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 05:13:05,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031091048] [2020-10-16 05:13:05,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 05:13:05,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:05,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 05:13:05,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-16 05:13:05,295 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 222 [2020-10-16 05:13:05,296 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 90 transitions, 699 flow. Second operand 6 states. [2020-10-16 05:13:05,296 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:05,296 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 222 [2020-10-16 05:13:05,296 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:07,012 INFO L129 PetriNetUnfolder]: 7770/11637 cut-off events. [2020-10-16 05:13:07,013 INFO L130 PetriNetUnfolder]: For 33066/66315 co-relation queries the response was YES. [2020-10-16 05:13:07,058 INFO L80 FinitePrefix]: Finished finitePrefix Result has 51592 conditions, 11637 events. 7770/11637 cut-off events. For 33066/66315 co-relation queries the response was YES. Maximal size of possible extension queue 679. Compared 74685 event pairs, 839 based on Foata normal form. 688/12178 useless extension candidates. Maximal degree in co-relation 51560. Up to 4708 conditions per place. [2020-10-16 05:13:07,152 INFO L132 encePairwiseOnDemand]: 205/222 looper letters, 56 selfloop transitions, 139 changer transitions 0/205 dead transitions. [2020-10-16 05:13:07,152 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 205 transitions, 1928 flow [2020-10-16 05:13:07,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 05:13:07,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-16 05:13:07,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 864 transitions. [2020-10-16 05:13:07,155 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6486486486486487 [2020-10-16 05:13:07,155 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 864 transitions. [2020-10-16 05:13:07,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 864 transitions. [2020-10-16 05:13:07,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:07,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 864 transitions. [2020-10-16 05:13:07,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-16 05:13:07,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-16 05:13:07,160 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-16 05:13:07,161 INFO L185 Difference]: Start difference. First operand has 55 places, 90 transitions, 699 flow. Second operand 6 states and 864 transitions. [2020-10-16 05:13:07,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 205 transitions, 1928 flow [2020-10-16 05:13:07,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 205 transitions, 1890 flow, removed 19 selfloop flow, removed 0 redundant places. [2020-10-16 05:13:07,356 INFO L241 Difference]: Finished difference. Result has 64 places, 178 transitions, 1972 flow [2020-10-16 05:13:07,356 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1972, PETRI_PLACES=64, PETRI_TRANSITIONS=178} [2020-10-16 05:13:07,356 INFO L342 CegarLoopForPetriNet]: 42 programPoint places, 22 predicate places. [2020-10-16 05:13:07,356 INFO L481 AbstractCegarLoop]: Abstraction has has 64 places, 178 transitions, 1972 flow [2020-10-16 05:13:07,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 05:13:07,357 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:07,357 INFO L255 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:07,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-16 05:13:07,357 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:07,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:07,357 INFO L82 PathProgramCache]: Analyzing trace with hash -646932581, now seen corresponding path program 1 times [2020-10-16 05:13:07,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:07,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321690762] [2020-10-16 05:13:07,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:13:07,370 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:13:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:13:07,379 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:13:07,385 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 05:13:07,385 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 05:13:07,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-16 05:13:07,385 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 05:13:07,386 WARN L371 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 05:13:07,386 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-10-16 05:13:07,396 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,396 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,396 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,396 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,396 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,396 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,396 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,397 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,397 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,397 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,397 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,397 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,397 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,397 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,398 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,398 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,398 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,398 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,398 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,398 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,398 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,399 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,399 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,399 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,399 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,399 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,399 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,399 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,400 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,400 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,400 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,400 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,400 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,400 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,401 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,401 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,401 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,401 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,401 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,401 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,401 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,401 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,402 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,402 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,402 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,402 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,402 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,402 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,402 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,403 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,403 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,403 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,403 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,403 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,403 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,403 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,404 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,404 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,404 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,404 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,404 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,404 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,404 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,405 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,405 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,405 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,405 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,405 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,405 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,405 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,406 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,406 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,406 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,406 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,406 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,406 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,406 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,406 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,407 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,407 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,407 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,407 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,407 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,407 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,407 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,407 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,408 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,408 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,408 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,408 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,408 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,409 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,409 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,409 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,409 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,409 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,410 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,410 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,410 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,410 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,410 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,410 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,410 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,410 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,417 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,417 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,417 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,417 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,417 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,418 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,418 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,418 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,419 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,419 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,419 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,419 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,419 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,420 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,420 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,420 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,421 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,421 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,421 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,421 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,421 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,422 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,422 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,422 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,423 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,423 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,423 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,423 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,423 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,423 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,424 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,424 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,425 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,425 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,425 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,425 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,425 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,425 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,425 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,426 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:07,426 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-16 05:13:07,427 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:13:07,427 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:13:07,427 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:13:07,427 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:13:07,427 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:13:07,427 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:13:07,427 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:13:07,428 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:13:07,429 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 130 places, 125 transitions, 310 flow [2020-10-16 05:13:07,447 INFO L129 PetriNetUnfolder]: 14/199 cut-off events. [2020-10-16 05:13:07,447 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-16 05:13:07,448 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. [2020-10-16 05:13:07,448 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 125 transitions, 310 flow [2020-10-16 05:13:07,450 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 125 transitions, 310 flow [2020-10-16 05:13:07,450 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:13:07,450 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 125 transitions, 310 flow [2020-10-16 05:13:07,450 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 125 transitions, 310 flow [2020-10-16 05:13:07,450 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 130 places, 125 transitions, 310 flow [2020-10-16 05:13:07,466 INFO L129 PetriNetUnfolder]: 14/199 cut-off events. [2020-10-16 05:13:07,466 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-16 05:13:07,467 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 426 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. [2020-10-16 05:13:07,477 INFO L117 LiptonReduction]: Number of co-enabled transitions 8652 [2020-10-16 05:13:09,668 INFO L132 LiptonReduction]: Checked pairs total: 18458 [2020-10-16 05:13:09,669 INFO L134 LiptonReduction]: Total number of compositions: 134 [2020-10-16 05:13:09,669 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2219 [2020-10-16 05:13:09,670 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2020-10-16 05:13:09,670 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:13:09,670 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:09,670 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 05:13:09,671 INFO L429 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]=== [2020-10-16 05:13:09,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:09,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1199909937, now seen corresponding path program 1 times [2020-10-16 05:13:09,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:09,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224544900] [2020-10-16 05:13:09,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:09,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:09,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224544900] [2020-10-16 05:13:09,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:13:09,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:13:09,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310211890] [2020-10-16 05:13:09,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:13:09,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:09,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:13:09,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:13:09,706 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 259 [2020-10-16 05:13:09,706 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 144 flow. Second operand 4 states. [2020-10-16 05:13:09,706 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:09,706 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 259 [2020-10-16 05:13:09,706 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:15,975 INFO L129 PetriNetUnfolder]: 42541/54832 cut-off events. [2020-10-16 05:13:15,976 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-16 05:13:16,234 INFO L80 FinitePrefix]: Finished finitePrefix Result has 109672 conditions, 54832 events. 42541/54832 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 2600. Compared 300174 event pairs, 31154 based on Foata normal form. 0/41794 useless extension candidates. Maximal degree in co-relation 109600. Up to 51883 conditions per place. [2020-10-16 05:13:16,569 INFO L132 encePairwiseOnDemand]: 234/259 looper letters, 36 selfloop transitions, 13 changer transitions 0/60 dead transitions. [2020-10-16 05:13:16,569 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 60 transitions, 278 flow [2020-10-16 05:13:16,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:13:16,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:13:16,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 637 transitions. [2020-10-16 05:13:16,572 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6148648648648649 [2020-10-16 05:13:16,572 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 637 transitions. [2020-10-16 05:13:16,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 637 transitions. [2020-10-16 05:13:16,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:16,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 637 transitions. [2020-10-16 05:13:16,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:13:16,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:13:16,576 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:13:16,576 INFO L185 Difference]: Start difference. First operand has 49 places, 42 transitions, 144 flow. Second operand 4 states and 637 transitions. [2020-10-16 05:13:16,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 60 transitions, 278 flow [2020-10-16 05:13:16,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 60 transitions, 248 flow, removed 15 selfloop flow, removed 0 redundant places. [2020-10-16 05:13:16,579 INFO L241 Difference]: Finished difference. Result has 54 places, 48 transitions, 207 flow [2020-10-16 05:13:16,579 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=207, PETRI_PLACES=54, PETRI_TRANSITIONS=48} [2020-10-16 05:13:16,579 INFO L342 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2020-10-16 05:13:16,579 INFO L481 AbstractCegarLoop]: Abstraction has has 54 places, 48 transitions, 207 flow [2020-10-16 05:13:16,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:13:16,579 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:16,579 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:16,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-16 05:13:16,580 INFO L429 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]=== [2020-10-16 05:13:16,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:16,580 INFO L82 PathProgramCache]: Analyzing trace with hash 915842161, now seen corresponding path program 1 times [2020-10-16 05:13:16,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:16,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121707869] [2020-10-16 05:13:16,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:16,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:16,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121707869] [2020-10-16 05:13:16,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964217644] [2020-10-16 05:13:16,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-16 05:13:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:16,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 05:13:16,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 05:13:16,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:16,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 05:13:16,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2020-10-16 05:13:16,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15035060] [2020-10-16 05:13:16,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 05:13:16,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:16,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 05:13:16,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-16 05:13:16,754 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 259 [2020-10-16 05:13:16,755 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 48 transitions, 207 flow. Second operand 10 states. [2020-10-16 05:13:16,755 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:16,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 259 [2020-10-16 05:13:16,755 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:23,148 INFO L129 PetriNetUnfolder]: 35676/49738 cut-off events. [2020-10-16 05:13:23,148 INFO L130 PetriNetUnfolder]: For 20332/59764 co-relation queries the response was YES. [2020-10-16 05:13:23,355 INFO L80 FinitePrefix]: Finished finitePrefix Result has 135815 conditions, 49738 events. 35676/49738 cut-off events. For 20332/59764 co-relation queries the response was YES. Maximal size of possible extension queue 2597. Compared 330388 event pairs, 5122 based on Foata normal form. 7384/56791 useless extension candidates. Maximal degree in co-relation 135788. Up to 20839 conditions per place. [2020-10-16 05:13:23,571 INFO L132 encePairwiseOnDemand]: 239/259 looper letters, 76 selfloop transitions, 57 changer transitions 0/144 dead transitions. [2020-10-16 05:13:23,571 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 144 transitions, 803 flow [2020-10-16 05:13:23,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 05:13:23,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-16 05:13:23,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1414 transitions. [2020-10-16 05:13:23,576 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6066066066066066 [2020-10-16 05:13:23,577 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1414 transitions. [2020-10-16 05:13:23,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1414 transitions. [2020-10-16 05:13:23,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:23,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1414 transitions. [2020-10-16 05:13:23,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-16 05:13:23,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-16 05:13:23,584 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-16 05:13:23,584 INFO L185 Difference]: Start difference. First operand has 54 places, 48 transitions, 207 flow. Second operand 9 states and 1414 transitions. [2020-10-16 05:13:23,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 144 transitions, 803 flow [2020-10-16 05:13:23,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 144 transitions, 790 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 05:13:23,590 INFO L241 Difference]: Finished difference. Result has 67 places, 92 transitions, 657 flow [2020-10-16 05:13:23,591 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=657, PETRI_PLACES=67, PETRI_TRANSITIONS=92} [2020-10-16 05:13:23,591 INFO L342 CegarLoopForPetriNet]: 49 programPoint places, 18 predicate places. [2020-10-16 05:13:23,591 INFO L481 AbstractCegarLoop]: Abstraction has has 67 places, 92 transitions, 657 flow [2020-10-16 05:13:23,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 05:13:23,591 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:23,591 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:23,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-10-16 05:13:23,803 INFO L429 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]=== [2020-10-16 05:13:23,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:23,804 INFO L82 PathProgramCache]: Analyzing trace with hash -188086042, now seen corresponding path program 1 times [2020-10-16 05:13:23,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:23,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357974886] [2020-10-16 05:13:23,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:23,865 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-16 05:13:23,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357974886] [2020-10-16 05:13:23,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:13:23,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 05:13:23,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686254093] [2020-10-16 05:13:23,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 05:13:23,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:23,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 05:13:23,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 05:13:23,868 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 259 [2020-10-16 05:13:23,868 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 92 transitions, 657 flow. Second operand 7 states. [2020-10-16 05:13:23,869 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:23,869 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 259 [2020-10-16 05:13:23,869 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:35,708 INFO L129 PetriNetUnfolder]: 58948/83670 cut-off events. [2020-10-16 05:13:35,708 INFO L130 PetriNetUnfolder]: For 231647/446124 co-relation queries the response was YES. [2020-10-16 05:13:36,198 INFO L80 FinitePrefix]: Finished finitePrefix Result has 356378 conditions, 83670 events. 58948/83670 cut-off events. For 231647/446124 co-relation queries the response was YES. Maximal size of possible extension queue 4556. Compared 617077 event pairs, 5710 based on Foata normal form. 4614/87861 useless extension candidates. Maximal degree in co-relation 356344. Up to 34089 conditions per place. [2020-10-16 05:13:36,663 INFO L132 encePairwiseOnDemand]: 239/259 looper letters, 73 selfloop transitions, 112 changer transitions 0/196 dead transitions. [2020-10-16 05:13:36,664 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 196 transitions, 1707 flow [2020-10-16 05:13:36,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 05:13:36,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-16 05:13:36,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1267 transitions. [2020-10-16 05:13:36,668 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6114864864864865 [2020-10-16 05:13:36,668 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1267 transitions. [2020-10-16 05:13:36,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1267 transitions. [2020-10-16 05:13:36,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:36,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1267 transitions. [2020-10-16 05:13:36,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-10-16 05:13:36,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 9 states. [2020-10-16 05:13:36,674 INFO L81 ComplementDD]: Finished complementDD. Result 9 states. [2020-10-16 05:13:36,674 INFO L185 Difference]: Start difference. First operand has 67 places, 92 transitions, 657 flow. Second operand 8 states and 1267 transitions. [2020-10-16 05:13:36,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 196 transitions, 1707 flow [2020-10-16 05:13:39,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 196 transitions, 1586 flow, removed 48 selfloop flow, removed 2 redundant places. [2020-10-16 05:13:39,738 INFO L241 Difference]: Finished difference. Result has 76 places, 149 transitions, 1451 flow [2020-10-16 05:13:39,738 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1451, PETRI_PLACES=76, PETRI_TRANSITIONS=149} [2020-10-16 05:13:39,738 INFO L342 CegarLoopForPetriNet]: 49 programPoint places, 27 predicate places. [2020-10-16 05:13:39,739 INFO L481 AbstractCegarLoop]: Abstraction has has 76 places, 149 transitions, 1451 flow [2020-10-16 05:13:39,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 05:13:39,739 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:39,739 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:39,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-16 05:13:39,740 INFO L429 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]=== [2020-10-16 05:13:39,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:39,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1534757702, now seen corresponding path program 2 times [2020-10-16 05:13:39,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:39,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144267095] [2020-10-16 05:13:39,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:39,818 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:39,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144267095] [2020-10-16 05:13:39,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979607118] [2020-10-16 05:13:39,819 INFO L93 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 [2020-10-16 05:13:40,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-16 05:13:40,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 05:13:40,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-16 05:13:40,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 05:13:40,218 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:40,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-16 05:13:40,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 12 [2020-10-16 05:13:40,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938199859] [2020-10-16 05:13:40,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 05:13:40,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:40,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 05:13:40,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-16 05:13:40,221 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 259 [2020-10-16 05:13:40,222 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 149 transitions, 1451 flow. Second operand 8 states. [2020-10-16 05:13:40,222 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:40,222 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 259 [2020-10-16 05:13:40,222 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:52,277 INFO L129 PetriNetUnfolder]: 54991/75810 cut-off events. [2020-10-16 05:13:52,278 INFO L130 PetriNetUnfolder]: For 413081/934884 co-relation queries the response was YES. [2020-10-16 05:13:52,759 INFO L80 FinitePrefix]: Finished finitePrefix Result has 401398 conditions, 75810 events. 54991/75810 cut-off events. For 413081/934884 co-relation queries the response was YES. Maximal size of possible extension queue 3353. Compared 509988 event pairs, 7824 based on Foata normal form. 1768/77149 useless extension candidates. Maximal degree in co-relation 401359. Up to 48189 conditions per place. [2020-10-16 05:13:53,277 INFO L132 encePairwiseOnDemand]: 240/259 looper letters, 187 selfloop transitions, 73 changer transitions 0/271 dead transitions. [2020-10-16 05:13:53,277 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 271 transitions, 3131 flow [2020-10-16 05:13:53,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 05:13:53,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-16 05:13:53,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1255 transitions. [2020-10-16 05:13:53,281 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6056949806949807 [2020-10-16 05:13:53,281 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1255 transitions. [2020-10-16 05:13:53,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1255 transitions. [2020-10-16 05:13:53,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:53,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1255 transitions. [2020-10-16 05:13:53,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-10-16 05:13:53,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 9 states. [2020-10-16 05:13:53,288 INFO L81 ComplementDD]: Finished complementDD. Result 9 states. [2020-10-16 05:13:53,288 INFO L185 Difference]: Start difference. First operand has 76 places, 149 transitions, 1451 flow. Second operand 8 states and 1255 transitions. [2020-10-16 05:13:53,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 271 transitions, 3131 flow [2020-10-16 05:14:04,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 271 transitions, 2896 flow, removed 96 selfloop flow, removed 3 redundant places. [2020-10-16 05:14:04,245 INFO L241 Difference]: Finished difference. Result has 83 places, 197 transitions, 2124 flow [2020-10-16 05:14:04,245 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=1306, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2124, PETRI_PLACES=83, PETRI_TRANSITIONS=197} [2020-10-16 05:14:04,246 INFO L342 CegarLoopForPetriNet]: 49 programPoint places, 34 predicate places. [2020-10-16 05:14:04,246 INFO L481 AbstractCegarLoop]: Abstraction has has 83 places, 197 transitions, 2124 flow [2020-10-16 05:14:04,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 05:14:04,246 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:14:04,246 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:14:04,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-10-16 05:14:04,462 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:14:04,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:14:04,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1656312495, now seen corresponding path program 1 times [2020-10-16 05:14:04,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:14:04,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273254556] [2020-10-16 05:14:04,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:14:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:14:04,521 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:14:04,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273254556] [2020-10-16 05:14:04,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213368062] [2020-10-16 05:14:04,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-16 05:14:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:14:04,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-16 05:14:04,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 05:14:04,745 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:14:04,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 05:14:04,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 14 [2020-10-16 05:14:04,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237808472] [2020-10-16 05:14:04,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-16 05:14:04,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:14:04,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-16 05:14:04,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-16 05:14:04,749 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 259 [2020-10-16 05:14:04,750 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 197 transitions, 2124 flow. Second operand 16 states. [2020-10-16 05:14:04,750 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:14:04,750 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 259 [2020-10-16 05:14:04,750 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:14:14,772 INFO L129 PetriNetUnfolder]: 59660/81171 cut-off events. [2020-10-16 05:14:14,772 INFO L130 PetriNetUnfolder]: For 480117/1000430 co-relation queries the response was YES. [2020-10-16 05:14:15,355 INFO L80 FinitePrefix]: Finished finitePrefix Result has 441590 conditions, 81171 events. 59660/81171 cut-off events. For 480117/1000430 co-relation queries the response was YES. Maximal size of possible extension queue 3982. Compared 533828 event pairs, 1292 based on Foata normal form. 3812/84558 useless extension candidates. Maximal degree in co-relation 441547. Up to 33226 conditions per place. [2020-10-16 05:14:15,880 INFO L132 encePairwiseOnDemand]: 239/259 looper letters, 178 selfloop transitions, 513 changer transitions 0/702 dead transitions. [2020-10-16 05:14:15,880 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 702 transitions, 8387 flow [2020-10-16 05:14:15,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-16 05:14:15,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-16 05:14:15,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3181 transitions. [2020-10-16 05:14:15,888 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.614092664092664 [2020-10-16 05:14:15,889 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3181 transitions. [2020-10-16 05:14:15,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3181 transitions. [2020-10-16 05:14:15,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:14:15,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3181 transitions. [2020-10-16 05:14:15,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 21 states. [2020-10-16 05:14:15,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 21 states. [2020-10-16 05:14:15,905 INFO L81 ComplementDD]: Finished complementDD. Result 21 states. [2020-10-16 05:14:15,905 INFO L185 Difference]: Start difference. First operand has 83 places, 197 transitions, 2124 flow. Second operand 20 states and 3181 transitions. [2020-10-16 05:14:15,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 702 transitions, 8387 flow [2020-10-16 05:14:37,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 702 transitions, 8042 flow, removed 114 selfloop flow, removed 4 redundant places. [2020-10-16 05:14:37,283 INFO L241 Difference]: Finished difference. Result has 106 places, 589 transitions, 8139 flow [2020-10-16 05:14:37,283 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=1960, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8139, PETRI_PLACES=106, PETRI_TRANSITIONS=589} [2020-10-16 05:14:37,283 INFO L342 CegarLoopForPetriNet]: 49 programPoint places, 57 predicate places. [2020-10-16 05:14:37,283 INFO L481 AbstractCegarLoop]: Abstraction has has 106 places, 589 transitions, 8139 flow [2020-10-16 05:14:37,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-16 05:14:37,283 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:14:37,284 INFO L255 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:14:37,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 05:14:37,497 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:14:37,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:14:37,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1497346824, now seen corresponding path program 1 times [2020-10-16 05:14:37,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:14:37,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620377197] [2020-10-16 05:14:37,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:14:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:14:37,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:14:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:14:37,516 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:14:37,523 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 05:14:37,524 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 05:14:37,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-16 05:14:37,524 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 05:14:37,525 WARN L371 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 05:14:37,525 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2020-10-16 05:14:37,535 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,536 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,536 WARN L313 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,536 WARN L313 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,536 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,536 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,536 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,536 WARN L313 ript$VariableManager]: TermVariabe thrThread2of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,537 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,537 WARN L313 ript$VariableManager]: TermVariabe thrThread2of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,537 WARN L313 ript$VariableManager]: TermVariabe thrThread2of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,537 WARN L313 ript$VariableManager]: TermVariabe thrThread2of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,537 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,537 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,537 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,537 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,538 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,538 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,538 WARN L313 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,538 WARN L313 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,538 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,538 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,538 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,538 WARN L313 ript$VariableManager]: TermVariabe thrThread6of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,539 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,539 WARN L313 ript$VariableManager]: TermVariabe thrThread6of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,539 WARN L313 ript$VariableManager]: TermVariabe thrThread6of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,539 WARN L313 ript$VariableManager]: TermVariabe thrThread6of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,539 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,539 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,539 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,539 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,539 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,540 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,540 WARN L313 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,540 WARN L313 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,540 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,540 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,540 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,540 WARN L313 ript$VariableManager]: TermVariabe thrThread7of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,540 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,541 WARN L313 ript$VariableManager]: TermVariabe thrThread7of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,541 WARN L313 ript$VariableManager]: TermVariabe thrThread7of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,541 WARN L313 ript$VariableManager]: TermVariabe thrThread7of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,541 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,541 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,541 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,541 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,542 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,542 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,542 WARN L313 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,542 WARN L313 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,542 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,542 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,542 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,542 WARN L313 ript$VariableManager]: TermVariabe thrThread1of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,543 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,543 WARN L313 ript$VariableManager]: TermVariabe thrThread1of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,543 WARN L313 ript$VariableManager]: TermVariabe thrThread1of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,543 WARN L313 ript$VariableManager]: TermVariabe thrThread1of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,543 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,543 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,543 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,543 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,544 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,544 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,544 WARN L313 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,544 WARN L313 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,544 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,544 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,544 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,545 WARN L313 ript$VariableManager]: TermVariabe thrThread3of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,545 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,545 WARN L313 ript$VariableManager]: TermVariabe thrThread3of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,545 WARN L313 ript$VariableManager]: TermVariabe thrThread3of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,545 WARN L313 ript$VariableManager]: TermVariabe thrThread3of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,545 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,545 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,545 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,545 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,546 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,546 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,546 WARN L313 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,546 WARN L313 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,546 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,546 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,546 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,546 WARN L313 ript$VariableManager]: TermVariabe thrThread4of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,547 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,547 WARN L313 ript$VariableManager]: TermVariabe thrThread4of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,547 WARN L313 ript$VariableManager]: TermVariabe thrThread4of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,547 WARN L313 ript$VariableManager]: TermVariabe thrThread4of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,547 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,547 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,547 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,547 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,548 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,548 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,548 WARN L313 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,548 WARN L313 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,548 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,548 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,548 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,548 WARN L313 ript$VariableManager]: TermVariabe thrThread5of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,549 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,549 WARN L313 ript$VariableManager]: TermVariabe thrThread5of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,549 WARN L313 ript$VariableManager]: TermVariabe thrThread5of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,549 WARN L313 ript$VariableManager]: TermVariabe thrThread5of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,549 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,549 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,549 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,549 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,550 WARN L313 ript$VariableManager]: TermVariabe thrThread1of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,550 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,550 WARN L313 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,550 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,550 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,550 WARN L313 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,551 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,551 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,552 WARN L313 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,552 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,552 WARN L313 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,552 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,552 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,552 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,553 WARN L313 ript$VariableManager]: TermVariabe thrThread2of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,553 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,554 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,554 WARN L313 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,554 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,554 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,554 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,554 WARN L313 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,554 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,554 WARN L313 ript$VariableManager]: TermVariabe thrThread3of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,555 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,555 WARN L313 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,556 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,556 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,556 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,556 WARN L313 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,556 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,556 WARN L313 ript$VariableManager]: TermVariabe thrThread4of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,557 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,557 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,557 WARN L313 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,558 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,558 WARN L313 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,558 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,558 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,558 WARN L313 ript$VariableManager]: TermVariabe thrThread5of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,559 WARN L313 ript$VariableManager]: TermVariabe thrThread6of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,559 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,559 WARN L313 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,559 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,560 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,560 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,560 WARN L313 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,560 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,561 WARN L313 ript$VariableManager]: TermVariabe thrThread7of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,561 WARN L313 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,561 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,561 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,561 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,562 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,562 WARN L313 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,562 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:14:37,563 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-10-16 05:14:37,563 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:14:37,563 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:14:37,563 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:14:37,563 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:14:37,563 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:14:37,563 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:14:37,564 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:14:37,564 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:14:37,565 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 146 places, 140 transitions, 357 flow [2020-10-16 05:14:37,584 INFO L129 PetriNetUnfolder]: 16/227 cut-off events. [2020-10-16 05:14:37,584 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2020-10-16 05:14:37,586 INFO L80 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 227 events. 16/227 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 511 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 225. Up to 16 conditions per place. [2020-10-16 05:14:37,587 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 140 transitions, 357 flow [2020-10-16 05:14:37,588 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 140 transitions, 357 flow [2020-10-16 05:14:37,588 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:14:37,588 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 140 transitions, 357 flow [2020-10-16 05:14:37,588 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 140 transitions, 357 flow [2020-10-16 05:14:37,588 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 146 places, 140 transitions, 357 flow [2020-10-16 05:14:37,608 INFO L129 PetriNetUnfolder]: 16/227 cut-off events. [2020-10-16 05:14:37,608 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2020-10-16 05:14:37,610 INFO L80 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 227 events. 16/227 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 490 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 225. Up to 16 conditions per place. [2020-10-16 05:14:37,621 INFO L117 LiptonReduction]: Number of co-enabled transitions 11564 [2020-10-16 05:14:39,764 INFO L132 LiptonReduction]: Checked pairs total: 24141 [2020-10-16 05:14:39,764 INFO L134 LiptonReduction]: Total number of compositions: 153 [2020-10-16 05:14:39,764 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2176 [2020-10-16 05:14:39,765 INFO L129 PetriNetUnfolder]: 1/10 cut-off events. [2020-10-16 05:14:39,765 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:14:39,765 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:14:39,766 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 05:14:39,766 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:14:39,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:14:39,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1496855041, now seen corresponding path program 1 times [2020-10-16 05:14:39,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:14:39,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661531175] [2020-10-16 05:14:39,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:14:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:14:39,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:14:39,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661531175] [2020-10-16 05:14:39,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:14:39,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:14:39,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119546658] [2020-10-16 05:14:39,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:14:39,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:14:39,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:14:39,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:14:39,805 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 293 [2020-10-16 05:14:39,805 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 173 flow. Second operand 4 states. [2020-10-16 05:14:39,806 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:14:39,806 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 293 [2020-10-16 05:14:39,806 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:15:37,909 INFO L129 PetriNetUnfolder]: 274194/338160 cut-off events. [2020-10-16 05:15:37,909 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2020-10-16 05:15:39,905 INFO L80 FinitePrefix]: Finished finitePrefix Result has 676333 conditions, 338160 events. 274194/338160 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 13145. Compared 1917659 event pairs, 211897 based on Foata normal form. 0/256082 useless extension candidates. Maximal degree in co-relation 676246. Up to 327916 conditions per place. [2020-10-16 05:15:41,479 INFO L132 encePairwiseOnDemand]: 264/293 looper letters, 42 selfloop transitions, 15 changer transitions 0/69 dead transitions. [2020-10-16 05:15:41,479 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 69 transitions, 329 flow [2020-10-16 05:15:41,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:15:41,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:15:41,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 705 transitions. [2020-10-16 05:15:41,481 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6015358361774744 [2020-10-16 05:15:41,481 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 705 transitions. [2020-10-16 05:15:41,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 705 transitions. [2020-10-16 05:15:41,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:15:41,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 705 transitions. [2020-10-16 05:15:41,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:15:41,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:15:41,485 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:15:41,485 INFO L185 Difference]: Start difference. First operand has 56 places, 48 transitions, 173 flow. Second operand 4 states and 705 transitions. [2020-10-16 05:15:41,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 69 transitions, 329 flow [2020-10-16 05:15:41,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 69 transitions, 287 flow, removed 21 selfloop flow, removed 0 redundant places. [2020-10-16 05:15:41,487 INFO L241 Difference]: Finished difference. Result has 61 places, 55 transitions, 239 flow [2020-10-16 05:15:41,488 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=239, PETRI_PLACES=61, PETRI_TRANSITIONS=55} [2020-10-16 05:15:41,488 INFO L342 CegarLoopForPetriNet]: 56 programPoint places, 5 predicate places. [2020-10-16 05:15:41,488 INFO L481 AbstractCegarLoop]: Abstraction has has 61 places, 55 transitions, 239 flow [2020-10-16 05:15:41,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:15:41,488 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:15:41,488 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:15:41,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-16 05:15:41,489 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:15:41,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:15:41,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1723461042, now seen corresponding path program 1 times [2020-10-16 05:15:41,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:15:41,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635419089] [2020-10-16 05:15:41,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:15:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:15:41,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:15:41,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635419089] [2020-10-16 05:15:41,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963154973] [2020-10-16 05:15:41,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-16 05:15:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:15:41,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 05:15:41,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 05:15:41,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:15:41,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 05:15:41,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2020-10-16 05:15:41,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708182246] [2020-10-16 05:15:41,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 05:15:41,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:15:41,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 05:15:41,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-16 05:15:41,636 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 293 [2020-10-16 05:15:41,637 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 55 transitions, 239 flow. Second operand 10 states. [2020-10-16 05:15:41,637 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:15:41,637 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 293 [2020-10-16 05:15:41,637 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:16:34,104 INFO L129 PetriNetUnfolder]: 266360/349780 cut-off events. [2020-10-16 05:16:34,104 INFO L130 PetriNetUnfolder]: For 141716/555701 co-relation queries the response was YES. [2020-10-16 05:16:45,980 INFO L80 FinitePrefix]: Finished finitePrefix Result has 952893 conditions, 349780 events. 266360/349780 cut-off events. For 141716/555701 co-relation queries the response was YES. Maximal size of possible extension queue 15031. Compared 2449021 event pairs, 42754 based on Foata normal form. 47937/396628 useless extension candidates. Maximal degree in co-relation 952865. Up to 150025 conditions per place. [2020-10-16 05:16:47,745 INFO L132 encePairwiseOnDemand]: 269/293 looper letters, 87 selfloop transitions, 68 changer transitions 0/167 dead transitions. [2020-10-16 05:16:47,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 167 transitions, 934 flow [2020-10-16 05:16:47,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 05:16:47,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-16 05:16:47,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1564 transitions. [2020-10-16 05:16:47,750 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.5930982176715965 [2020-10-16 05:16:47,750 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1564 transitions. [2020-10-16 05:16:47,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1564 transitions. [2020-10-16 05:16:47,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:16:47,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1564 transitions. [2020-10-16 05:16:47,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-16 05:16:47,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-16 05:16:47,755 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-16 05:16:47,756 INFO L185 Difference]: Start difference. First operand has 61 places, 55 transitions, 239 flow. Second operand 9 states and 1564 transitions. [2020-10-16 05:16:47,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 167 transitions, 934 flow [2020-10-16 05:16:47,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 167 transitions, 919 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 05:16:47,759 INFO L241 Difference]: Finished difference. Result has 74 places, 108 transitions, 777 flow [2020-10-16 05:16:47,759 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=777, PETRI_PLACES=74, PETRI_TRANSITIONS=108} [2020-10-16 05:16:47,759 INFO L342 CegarLoopForPetriNet]: 56 programPoint places, 18 predicate places. [2020-10-16 05:16:47,759 INFO L481 AbstractCegarLoop]: Abstraction has has 74 places, 108 transitions, 777 flow [2020-10-16 05:16:47,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 05:16:47,759 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:16:47,759 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:16:47,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-10-16 05:16:47,960 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:16:47,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:16:47,961 INFO L82 PathProgramCache]: Analyzing trace with hash -615997365, now seen corresponding path program 1 times [2020-10-16 05:16:47,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:16:47,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781846138] [2020-10-16 05:16:47,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:16:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:16:48,005 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 05:16:48,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781846138] [2020-10-16 05:16:48,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457411904] [2020-10-16 05:16:48,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-16 05:16:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:16:48,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-16 05:16:48,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 05:16:48,175 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 05:16:48,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 05:16:48,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 11 [2020-10-16 05:16:48,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081248670] [2020-10-16 05:16:48,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-16 05:16:48,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:16:48,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-16 05:16:48,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-16 05:16:48,184 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 293 [2020-10-16 05:16:48,185 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 108 transitions, 777 flow. Second operand 13 states. [2020-10-16 05:16:48,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:16:48,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 293 [2020-10-16 05:16:48,185 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:17:48,629 INFO L129 PetriNetUnfolder]: 247923/333851 cut-off events. [2020-10-16 05:17:48,629 INFO L130 PetriNetUnfolder]: For 948890/2338997 co-relation queries the response was YES. [2020-10-16 05:17:50,860 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1441132 conditions, 333851 events. 247923/333851 cut-off events. For 948890/2338997 co-relation queries the response was YES. Maximal size of possible extension queue 14508. Compared 2486934 event pairs, 20029 based on Foata normal form. 33567/366366 useless extension candidates. Maximal degree in co-relation 1441097. Up to 138239 conditions per place. [2020-10-16 05:17:53,727 INFO L132 encePairwiseOnDemand]: 269/293 looper letters, 137 selfloop transitions, 189 changer transitions 0/338 dead transitions. [2020-10-16 05:17:53,727 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 338 transitions, 2994 flow [2020-10-16 05:17:53,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 05:17:53,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-16 05:17:53,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2451 transitions. [2020-10-16 05:17:53,730 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.5975134080936129 [2020-10-16 05:17:53,730 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2451 transitions. [2020-10-16 05:17:53,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2451 transitions. [2020-10-16 05:17:53,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:17:53,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2451 transitions. [2020-10-16 05:17:53,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 15 states. [2020-10-16 05:17:53,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 15 states. [2020-10-16 05:17:53,736 INFO L81 ComplementDD]: Finished complementDD. Result 15 states. [2020-10-16 05:17:53,737 INFO L185 Difference]: Start difference. First operand has 74 places, 108 transitions, 777 flow. Second operand 14 states and 2451 transitions. [2020-10-16 05:17:53,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 338 transitions, 2994 flow [2020-10-16 05:18:20,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 338 transitions, 2804 flow, removed 77 selfloop flow, removed 2 redundant places. [2020-10-16 05:18:20,049 INFO L241 Difference]: Finished difference. Result has 92 places, 233 transitions, 2391 flow [2020-10-16 05:18:20,050 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2391, PETRI_PLACES=92, PETRI_TRANSITIONS=233} [2020-10-16 05:18:20,050 INFO L342 CegarLoopForPetriNet]: 56 programPoint places, 36 predicate places. [2020-10-16 05:18:20,050 INFO L481 AbstractCegarLoop]: Abstraction has has 92 places, 233 transitions, 2391 flow [2020-10-16 05:18:20,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-16 05:18:20,050 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:18:20,050 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:18:20,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 05:18:20,258 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:18:20,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:18:20,258 INFO L82 PathProgramCache]: Analyzing trace with hash 622172396, now seen corresponding path program 1 times [2020-10-16 05:18:20,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:18:20,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004982962] [2020-10-16 05:18:20,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:18:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:18:20,324 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 05:18:20,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004982962] [2020-10-16 05:18:20,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:18:20,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 05:18:20,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097193439] [2020-10-16 05:18:20,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 05:18:20,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:18:20,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 05:18:20,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 05:18:20,327 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 293 [2020-10-16 05:18:20,328 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 233 transitions, 2391 flow. Second operand 7 states. [2020-10-16 05:18:20,328 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:18:20,328 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 293 [2020-10-16 05:18:20,328 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand