/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread/stack_longest-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 23:59:38,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 23:59:38,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 23:59:38,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 23:59:38,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 23:59:38,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 23:59:38,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 23:59:38,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 23:59:38,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 23:59:38,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 23:59:38,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 23:59:38,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 23:59:38,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 23:59:38,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 23:59:38,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 23:59:38,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 23:59:38,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 23:59:38,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 23:59:38,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 23:59:38,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 23:59:38,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 23:59:38,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 23:59:38,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 23:59:38,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 23:59:38,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 23:59:38,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 23:59:38,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 23:59:38,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 23:59:38,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 23:59:38,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 23:59:38,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 23:59:38,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 23:59:38,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 23:59:38,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 23:59:38,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 23:59:38,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 23:59:38,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 23:59:38,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 23:59:38,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 23:59:38,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 23:59:38,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 23:59:38,539 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2020-10-15 23:59:38,573 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 23:59:38,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 23:59:38,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 23:59:38,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 23:59:38,575 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 23:59:38,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 23:59:38,576 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 23:59:38,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 23:59:38,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 23:59:38,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 23:59:38,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 23:59:38,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 23:59:38,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 23:59:38,577 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 23:59:38,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 23:59:38,578 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 23:59:38,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 23:59:38,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 23:59:38,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 23:59:38,579 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 23:59:38,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 23:59:38,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 23:59:38,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 23:59:38,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 23:59:38,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 23:59:38,580 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 23:59:38,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 23:59:38,580 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-15 23:59:38,581 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 23:59:38,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 23:59:38,931 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 23:59:38,937 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 23:59:38,938 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 23:59:38,939 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 23:59:38,940 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longest-2.i [2020-10-15 23:59:39,026 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdd9f8a01/035992eaa413478690f205eb6e3ab9e8/FLAGc116808af [2020-10-15 23:59:39,677 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 23:59:39,677 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-2.i [2020-10-15 23:59:39,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdd9f8a01/035992eaa413478690f205eb6e3ab9e8/FLAGc116808af [2020-10-15 23:59:39,951 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdd9f8a01/035992eaa413478690f205eb6e3ab9e8 [2020-10-15 23:59:39,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 23:59:39,963 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 23:59:39,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 23:59:39,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 23:59:39,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 23:59:39,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 11:59:39" (1/1) ... [2020-10-15 23:59:39,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3850d8ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:39, skipping insertion in model container [2020-10-15 23:59:39,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 11:59:39" (1/1) ... [2020-10-15 23:59:39,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 23:59:40,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 23:59:40,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 23:59:40,633 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 23:59:40,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 23:59:40,838 INFO L208 MainTranslator]: Completed translation [2020-10-15 23:59:40,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:40 WrapperNode [2020-10-15 23:59:40,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 23:59:40,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 23:59:40,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 23:59:40,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 23:59:40,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:40" (1/1) ... [2020-10-15 23:59:40,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:40" (1/1) ... [2020-10-15 23:59:40,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 23:59:40,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 23:59:40,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 23:59:40,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 23:59:40,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:40" (1/1) ... [2020-10-15 23:59:40,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:40" (1/1) ... [2020-10-15 23:59:40,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:40" (1/1) ... [2020-10-15 23:59:40,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:40" (1/1) ... [2020-10-15 23:59:40,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:40" (1/1) ... [2020-10-15 23:59:40,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:40" (1/1) ... [2020-10-15 23:59:40,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:40" (1/1) ... [2020-10-15 23:59:40,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 23:59:40,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 23:59:40,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 23:59:40,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 23:59:40,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:40" (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 [2020-10-15 23:59:41,022 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-15 23:59:41,022 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-15 23:59:41,022 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-15 23:59:41,022 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-15 23:59:41,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 23:59:41,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 23:59:41,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 23:59:41,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 23:59:41,024 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-15 23:59:41,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 23:59:41,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 23:59:41,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 23:59:41,026 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 23:59:41,563 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 23:59:41,563 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-15 23:59:41,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 11:59:41 BoogieIcfgContainer [2020-10-15 23:59:41,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 23:59:41,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 23:59:41,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 23:59:41,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 23:59:41,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 11:59:39" (1/3) ... [2020-10-15 23:59:41,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5101fd4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 11:59:41, skipping insertion in model container [2020-10-15 23:59:41,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:40" (2/3) ... [2020-10-15 23:59:41,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5101fd4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 11:59:41, skipping insertion in model container [2020-10-15 23:59:41,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 11:59:41" (3/3) ... [2020-10-15 23:59:41,578 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longest-2.i [2020-10-15 23:59:41,592 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 23:59:41,602 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-15 23:59:41,604 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 23:59:41,644 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,644 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,644 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,645 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,645 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,646 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,646 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,646 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,647 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,647 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,647 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,648 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,648 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,648 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,648 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,649 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,649 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,649 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,650 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,650 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,650 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,650 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,651 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,651 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,651 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,651 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,652 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,652 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,652 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,652 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,653 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,653 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,653 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,653 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,654 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,654 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,654 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,654 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,655 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,655 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,655 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,655 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,656 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,656 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,656 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,657 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,657 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,657 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,657 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,658 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,658 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,658 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,659 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,659 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,659 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,659 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,660 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,660 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,660 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,661 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,661 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,661 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,662 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,662 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,662 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,662 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,663 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,663 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,664 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,665 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,665 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,665 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,665 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,666 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,666 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,666 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,666 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,667 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,667 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,667 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,668 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,668 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,668 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,669 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,669 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,669 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,669 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,669 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,670 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,670 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,670 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,670 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,671 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,671 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,671 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,671 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,671 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,672 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,672 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,673 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,673 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,673 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,674 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,674 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,674 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,674 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,675 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,675 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,675 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,676 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,676 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,676 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,677 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,677 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,677 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,677 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,678 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,678 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,678 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,678 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,679 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,679 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,679 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,684 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,684 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,685 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,685 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,685 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,685 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,686 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,686 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,686 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,686 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,687 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,687 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,687 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,687 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,688 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,688 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,688 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,688 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,689 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,689 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,689 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,689 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,690 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,697 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,698 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,698 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,698 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,698 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,699 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,699 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,699 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,699 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,699 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,700 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,700 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,700 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,700 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,701 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,701 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,701 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,701 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:41,734 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-15 23:59:41,761 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 23:59:41,761 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-15 23:59:41,761 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 23:59:41,761 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 23:59:41,762 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 23:59:41,762 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 23:59:41,762 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 23:59:41,762 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 23:59:41,781 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 133 places, 138 transitions, 298 flow [2020-10-15 23:59:41,865 INFO L129 PetriNetUnfolder]: 11/138 cut-off events. [2020-10-15 23:59:41,865 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-15 23:59:41,873 INFO L80 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 138 events. 11/138 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 342 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 106. Up to 3 conditions per place. [2020-10-15 23:59:41,873 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 138 transitions, 298 flow [2020-10-15 23:59:41,883 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 126 transitions, 264 flow [2020-10-15 23:59:41,886 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 23:59:41,889 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 126 transitions, 264 flow [2020-10-15 23:59:41,892 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 126 transitions, 264 flow [2020-10-15 23:59:41,893 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 122 places, 126 transitions, 264 flow [2020-10-15 23:59:41,960 INFO L129 PetriNetUnfolder]: 10/128 cut-off events. [2020-10-15 23:59:41,960 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-15 23:59:41,965 INFO L80 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 128 events. 10/128 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 278 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 106. Up to 3 conditions per place. [2020-10-15 23:59:41,971 INFO L117 LiptonReduction]: Number of co-enabled transitions 5744 [2020-10-15 23:59:44,319 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-10-15 23:59:45,181 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-15 23:59:45,369 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-15 23:59:45,694 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-15 23:59:45,906 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-15 23:59:45,951 INFO L132 LiptonReduction]: Checked pairs total: 9349 [2020-10-15 23:59:45,951 INFO L134 LiptonReduction]: Total number of compositions: 118 [2020-10-15 23:59:45,955 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4072 [2020-10-15 23:59:45,963 INFO L129 PetriNetUnfolder]: 1/13 cut-off events. [2020-10-15 23:59:45,963 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-15 23:59:45,963 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:45,964 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-15 23:59:45,965 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:45,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:45,970 INFO L82 PathProgramCache]: Analyzing trace with hash -461369305, now seen corresponding path program 1 times [2020-10-15 23:59:45,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:45,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316498849] [2020-10-15 23:59:45,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:46,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:46,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316498849] [2020-10-15 23:59:46,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:46,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 23:59:46,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150073029] [2020-10-15 23:59:46,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 23:59:46,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:46,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 23:59:46,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 23:59:46,240 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 256 [2020-10-15 23:59:46,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 34 transitions, 80 flow. Second operand 3 states. [2020-10-15 23:59:46,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:46,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 256 [2020-10-15 23:59:46,249 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:46,339 INFO L129 PetriNetUnfolder]: 54/170 cut-off events. [2020-10-15 23:59:46,339 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2020-10-15 23:59:46,340 INFO L80 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 170 events. 54/170 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 621 event pairs, 18 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 259. Up to 71 conditions per place. [2020-10-15 23:59:46,343 INFO L132 encePairwiseOnDemand]: 251/256 looper letters, 15 selfloop transitions, 3 changer transitions 0/39 dead transitions. [2020-10-15 23:59:46,343 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 39 transitions, 126 flow [2020-10-15 23:59:46,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 23:59:46,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-15 23:59:46,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 608 transitions. [2020-10-15 23:59:46,365 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2020-10-15 23:59:46,366 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 608 transitions. [2020-10-15 23:59:46,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 608 transitions. [2020-10-15 23:59:46,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:46,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 608 transitions. [2020-10-15 23:59:46,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-15 23:59:46,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-15 23:59:46,398 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-15 23:59:46,401 INFO L185 Difference]: Start difference. First operand has 35 places, 34 transitions, 80 flow. Second operand 3 states and 608 transitions. [2020-10-15 23:59:46,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 39 transitions, 126 flow [2020-10-15 23:59:46,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 118 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-15 23:59:46,415 INFO L241 Difference]: Finished difference. Result has 34 places, 35 transitions, 89 flow [2020-10-15 23:59:46,420 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=89, PETRI_PLACES=34, PETRI_TRANSITIONS=35} [2020-10-15 23:59:46,421 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2020-10-15 23:59:46,421 INFO L481 AbstractCegarLoop]: Abstraction has has 34 places, 35 transitions, 89 flow [2020-10-15 23:59:46,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 23:59:46,422 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:46,422 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:46,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 23:59:46,422 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:46,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:46,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1604352594, now seen corresponding path program 1 times [2020-10-15 23:59:46,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:46,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679095080] [2020-10-15 23:59:46,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:46,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:46,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679095080] [2020-10-15 23:59:46,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:46,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 23:59:46,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070355008] [2020-10-15 23:59:46,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 23:59:46,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:46,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 23:59:46,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 23:59:46,567 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 256 [2020-10-15 23:59:46,568 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 35 transitions, 89 flow. Second operand 3 states. [2020-10-15 23:59:46,568 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:46,568 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 256 [2020-10-15 23:59:46,569 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:46,593 INFO L129 PetriNetUnfolder]: 12/93 cut-off events. [2020-10-15 23:59:46,594 INFO L130 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2020-10-15 23:59:46,595 INFO L80 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 93 events. 12/93 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 264 event pairs, 1 based on Foata normal form. 1/81 useless extension candidates. Maximal degree in co-relation 90. Up to 11 conditions per place. [2020-10-15 23:59:46,595 INFO L132 encePairwiseOnDemand]: 253/256 looper letters, 4 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2020-10-15 23:59:46,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 36 transitions, 105 flow [2020-10-15 23:59:46,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 23:59:46,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-15 23:59:46,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 661 transitions. [2020-10-15 23:59:46,600 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8606770833333334 [2020-10-15 23:59:46,600 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 661 transitions. [2020-10-15 23:59:46,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 661 transitions. [2020-10-15 23:59:46,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:46,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 661 transitions. [2020-10-15 23:59:46,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-15 23:59:46,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-15 23:59:46,605 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-15 23:59:46,605 INFO L185 Difference]: Start difference. First operand has 34 places, 35 transitions, 89 flow. Second operand 3 states and 661 transitions. [2020-10-15 23:59:46,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 36 transitions, 105 flow [2020-10-15 23:59:46,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 36 transitions, 102 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-15 23:59:46,608 INFO L241 Difference]: Finished difference. Result has 36 places, 36 transitions, 101 flow [2020-10-15 23:59:46,608 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=36, PETRI_TRANSITIONS=36} [2020-10-15 23:59:46,609 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2020-10-15 23:59:46,609 INFO L481 AbstractCegarLoop]: Abstraction has has 36 places, 36 transitions, 101 flow [2020-10-15 23:59:46,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 23:59:46,609 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:46,610 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:46,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 23:59:46,610 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:46,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:46,611 INFO L82 PathProgramCache]: Analyzing trace with hash 873993597, now seen corresponding path program 1 times [2020-10-15 23:59:46,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:46,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378335494] [2020-10-15 23:59:46,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:46,720 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:46,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378335494] [2020-10-15 23:59:46,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497696942] [2020-10-15 23:59:46,722 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 [2020-10-15 23:59:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:46,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-15 23:59:46,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 23:59:46,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:46,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 23:59:46,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-15 23:59:46,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966500170] [2020-10-15 23:59:46,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 23:59:46,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:46,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 23:59:46,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 23:59:46,880 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 256 [2020-10-15 23:59:46,881 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 36 transitions, 101 flow. Second operand 7 states. [2020-10-15 23:59:46,882 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:46,882 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 256 [2020-10-15 23:59:46,882 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:47,074 INFO L129 PetriNetUnfolder]: 104/365 cut-off events. [2020-10-15 23:59:47,075 INFO L130 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2020-10-15 23:59:47,077 INFO L80 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 365 events. 104/365 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2025 event pairs, 12 based on Foata normal form. 13/336 useless extension candidates. Maximal degree in co-relation 568. Up to 83 conditions per place. [2020-10-15 23:59:47,081 INFO L132 encePairwiseOnDemand]: 248/256 looper letters, 25 selfloop transitions, 13 changer transitions 0/59 dead transitions. [2020-10-15 23:59:47,082 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 59 transitions, 247 flow [2020-10-15 23:59:47,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 23:59:47,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-15 23:59:47,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1393 transitions. [2020-10-15 23:59:47,088 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.77734375 [2020-10-15 23:59:47,089 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1393 transitions. [2020-10-15 23:59:47,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1393 transitions. [2020-10-15 23:59:47,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:47,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1393 transitions. [2020-10-15 23:59:47,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-15 23:59:47,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-15 23:59:47,099 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-15 23:59:47,100 INFO L185 Difference]: Start difference. First operand has 36 places, 36 transitions, 101 flow. Second operand 7 states and 1393 transitions. [2020-10-15 23:59:47,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 59 transitions, 247 flow [2020-10-15 23:59:47,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 59 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-15 23:59:47,104 INFO L241 Difference]: Finished difference. Result has 46 places, 46 transitions, 206 flow [2020-10-15 23:59:47,105 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=206, PETRI_PLACES=46, PETRI_TRANSITIONS=46} [2020-10-15 23:59:47,105 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places. [2020-10-15 23:59:47,105 INFO L481 AbstractCegarLoop]: Abstraction has has 46 places, 46 transitions, 206 flow [2020-10-15 23:59:47,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 23:59:47,106 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:47,106 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:47,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-15 23:59:47,316 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:47,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:47,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1025090109, now seen corresponding path program 1 times [2020-10-15 23:59:47,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:47,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097000903] [2020-10-15 23:59:47,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:47,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:47,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097000903] [2020-10-15 23:59:47,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:47,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 23:59:47,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263493486] [2020-10-15 23:59:47,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 23:59:47,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:47,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 23:59:47,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 23:59:47,387 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 256 [2020-10-15 23:59:47,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 46 transitions, 206 flow. Second operand 3 states. [2020-10-15 23:59:47,388 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:47,388 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 256 [2020-10-15 23:59:47,388 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:47,461 INFO L129 PetriNetUnfolder]: 14/122 cut-off events. [2020-10-15 23:59:47,461 INFO L130 PetriNetUnfolder]: For 54/54 co-relation queries the response was YES. [2020-10-15 23:59:47,462 INFO L80 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 122 events. 14/122 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 422 event pairs, 0 based on Foata normal form. 12/134 useless extension candidates. Maximal degree in co-relation 195. Up to 14 conditions per place. [2020-10-15 23:59:47,463 INFO L132 encePairwiseOnDemand]: 251/256 looper letters, 1 selfloop transitions, 6 changer transitions 0/44 dead transitions. [2020-10-15 23:59:47,464 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 44 transitions, 200 flow [2020-10-15 23:59:47,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 23:59:47,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-15 23:59:47,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 611 transitions. [2020-10-15 23:59:47,467 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7955729166666666 [2020-10-15 23:59:47,467 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 611 transitions. [2020-10-15 23:59:47,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 611 transitions. [2020-10-15 23:59:47,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:47,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 611 transitions. [2020-10-15 23:59:47,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-15 23:59:47,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-15 23:59:47,472 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-15 23:59:47,472 INFO L185 Difference]: Start difference. First operand has 46 places, 46 transitions, 206 flow. Second operand 3 states and 611 transitions. [2020-10-15 23:59:47,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 44 transitions, 200 flow [2020-10-15 23:59:47,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 44 transitions, 190 flow, removed 2 selfloop flow, removed 2 redundant places. [2020-10-15 23:59:47,476 INFO L241 Difference]: Finished difference. Result has 46 places, 44 transitions, 188 flow [2020-10-15 23:59:47,477 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=46, PETRI_TRANSITIONS=44} [2020-10-15 23:59:47,477 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places. [2020-10-15 23:59:47,478 INFO L481 AbstractCegarLoop]: Abstraction has has 46 places, 44 transitions, 188 flow [2020-10-15 23:59:47,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 23:59:47,478 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:47,478 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:47,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 23:59:47,478 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:47,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:47,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1347278275, now seen corresponding path program 1 times [2020-10-15 23:59:47,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:47,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612616807] [2020-10-15 23:59:47,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:47,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:47,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612616807] [2020-10-15 23:59:47,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:47,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 23:59:47,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941589714] [2020-10-15 23:59:47,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 23:59:47,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:47,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 23:59:47,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 23:59:47,541 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 256 [2020-10-15 23:59:47,542 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 44 transitions, 188 flow. Second operand 3 states. [2020-10-15 23:59:47,543 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:47,543 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 256 [2020-10-15 23:59:47,543 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:47,602 INFO L129 PetriNetUnfolder]: 15/130 cut-off events. [2020-10-15 23:59:47,602 INFO L130 PetriNetUnfolder]: For 99/99 co-relation queries the response was YES. [2020-10-15 23:59:47,603 INFO L80 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 130 events. 15/130 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 472 event pairs, 0 based on Foata normal form. 3/133 useless extension candidates. Maximal degree in co-relation 251. Up to 35 conditions per place. [2020-10-15 23:59:47,604 INFO L132 encePairwiseOnDemand]: 250/256 looper letters, 21 selfloop transitions, 5 changer transitions 0/48 dead transitions. [2020-10-15 23:59:47,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 48 transitions, 258 flow [2020-10-15 23:59:47,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 23:59:47,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-15 23:59:47,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 608 transitions. [2020-10-15 23:59:47,607 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2020-10-15 23:59:47,607 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 608 transitions. [2020-10-15 23:59:47,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 608 transitions. [2020-10-15 23:59:47,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:47,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 608 transitions. [2020-10-15 23:59:47,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-15 23:59:47,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-15 23:59:47,612 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-15 23:59:47,612 INFO L185 Difference]: Start difference. First operand has 46 places, 44 transitions, 188 flow. Second operand 3 states and 608 transitions. [2020-10-15 23:59:47,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 48 transitions, 258 flow [2020-10-15 23:59:47,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 48 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-15 23:59:47,617 INFO L241 Difference]: Finished difference. Result has 49 places, 45 transitions, 218 flow [2020-10-15 23:59:47,617 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=49, PETRI_TRANSITIONS=45} [2020-10-15 23:59:47,617 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 14 predicate places. [2020-10-15 23:59:47,617 INFO L481 AbstractCegarLoop]: Abstraction has has 49 places, 45 transitions, 218 flow [2020-10-15 23:59:47,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 23:59:47,618 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:47,618 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-15 23:59:47,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 23:59:47,618 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:47,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:47,619 INFO L82 PathProgramCache]: Analyzing trace with hash -184188057, now seen corresponding path program 2 times [2020-10-15 23:59:47,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:47,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333958597] [2020-10-15 23:59:47,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:47,709 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:47,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333958597] [2020-10-15 23:59:47,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136879955] [2020-10-15 23:59:47,710 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 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 [2020-10-15 23:59:47,802 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 23:59:47,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 23:59:47,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 23:59:47,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 23:59:47,836 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:47,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 23:59:47,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-15 23:59:47,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949743340] [2020-10-15 23:59:47,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 23:59:47,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:47,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 23:59:47,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-15 23:59:47,842 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 256 [2020-10-15 23:59:47,843 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 45 transitions, 218 flow. Second operand 9 states. [2020-10-15 23:59:47,843 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:47,843 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 256 [2020-10-15 23:59:47,843 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:47,989 INFO L129 PetriNetUnfolder]: 18/159 cut-off events. [2020-10-15 23:59:47,990 INFO L130 PetriNetUnfolder]: For 233/233 co-relation queries the response was YES. [2020-10-15 23:59:47,991 INFO L80 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 159 events. 18/159 cut-off events. For 233/233 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 569 event pairs, 0 based on Foata normal form. 2/158 useless extension candidates. Maximal degree in co-relation 319. Up to 31 conditions per place. [2020-10-15 23:59:47,992 INFO L132 encePairwiseOnDemand]: 250/256 looper letters, 31 selfloop transitions, 13 changer transitions 0/65 dead transitions. [2020-10-15 23:59:47,992 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 65 transitions, 394 flow [2020-10-15 23:59:47,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 23:59:47,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-15 23:59:47,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1779 transitions. [2020-10-15 23:59:47,998 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7721354166666666 [2020-10-15 23:59:47,998 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1779 transitions. [2020-10-15 23:59:47,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1779 transitions. [2020-10-15 23:59:48,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:48,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1779 transitions. [2020-10-15 23:59:48,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-15 23:59:48,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-15 23:59:48,009 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-15 23:59:48,010 INFO L185 Difference]: Start difference. First operand has 49 places, 45 transitions, 218 flow. Second operand 9 states and 1779 transitions. [2020-10-15 23:59:48,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 65 transitions, 394 flow [2020-10-15 23:59:48,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 65 transitions, 372 flow, removed 3 selfloop flow, removed 2 redundant places. [2020-10-15 23:59:48,014 INFO L241 Difference]: Finished difference. Result has 57 places, 49 transitions, 275 flow [2020-10-15 23:59:48,015 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=275, PETRI_PLACES=57, PETRI_TRANSITIONS=49} [2020-10-15 23:59:48,015 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 22 predicate places. [2020-10-15 23:59:48,015 INFO L481 AbstractCegarLoop]: Abstraction has has 57 places, 49 transitions, 275 flow [2020-10-15 23:59:48,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 23:59:48,016 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:48,016 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:48,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 23:59:48,231 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:48,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:48,232 INFO L82 PathProgramCache]: Analyzing trace with hash -909717566, now seen corresponding path program 1 times [2020-10-15 23:59:48,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:48,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710002613] [2020-10-15 23:59:48,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:48,896 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 36 [2020-10-15 23:59:49,058 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2020-10-15 23:59:49,340 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 20 [2020-10-15 23:59:49,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:49,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710002613] [2020-10-15 23:59:49,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:49,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 23:59:49,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293866313] [2020-10-15 23:59:49,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 23:59:49,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:49,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 23:59:49,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 23:59:49,377 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 256 [2020-10-15 23:59:49,403 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 49 transitions, 275 flow. Second operand 10 states. [2020-10-15 23:59:49,404 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:49,404 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 256 [2020-10-15 23:59:49,404 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:50,269 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2020-10-15 23:59:50,588 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2020-10-15 23:59:50,893 INFO L129 PetriNetUnfolder]: 353/898 cut-off events. [2020-10-15 23:59:50,894 INFO L130 PetriNetUnfolder]: For 901/901 co-relation queries the response was YES. [2020-10-15 23:59:50,899 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2343 conditions, 898 events. 353/898 cut-off events. For 901/901 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5299 event pairs, 71 based on Foata normal form. 0/863 useless extension candidates. Maximal degree in co-relation 1252. Up to 484 conditions per place. [2020-10-15 23:59:50,908 INFO L132 encePairwiseOnDemand]: 246/256 looper letters, 69 selfloop transitions, 16 changer transitions 1/98 dead transitions. [2020-10-15 23:59:50,908 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 98 transitions, 649 flow [2020-10-15 23:59:50,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 23:59:50,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-15 23:59:50,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1307 transitions. [2020-10-15 23:59:50,915 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.510546875 [2020-10-15 23:59:50,916 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1307 transitions. [2020-10-15 23:59:50,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1307 transitions. [2020-10-15 23:59:50,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:50,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1307 transitions. [2020-10-15 23:59:50,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-15 23:59:50,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-15 23:59:50,928 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-15 23:59:50,928 INFO L185 Difference]: Start difference. First operand has 57 places, 49 transitions, 275 flow. Second operand 10 states and 1307 transitions. [2020-10-15 23:59:50,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 98 transitions, 649 flow [2020-10-15 23:59:50,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 98 transitions, 614 flow, removed 4 selfloop flow, removed 5 redundant places. [2020-10-15 23:59:50,937 INFO L241 Difference]: Finished difference. Result has 67 places, 64 transitions, 356 flow [2020-10-15 23:59:50,938 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=356, PETRI_PLACES=67, PETRI_TRANSITIONS=64} [2020-10-15 23:59:50,938 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 32 predicate places. [2020-10-15 23:59:50,939 INFO L481 AbstractCegarLoop]: Abstraction has has 67 places, 64 transitions, 356 flow [2020-10-15 23:59:50,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 23:59:50,939 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:50,939 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:50,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 23:59:50,940 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:50,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:50,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1157930222, now seen corresponding path program 2 times [2020-10-15 23:59:50,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:50,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426474588] [2020-10-15 23:59:50,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:51,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:51,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426474588] [2020-10-15 23:59:51,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:51,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 23:59:51,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466666652] [2020-10-15 23:59:51,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 23:59:51,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:51,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 23:59:51,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-15 23:59:51,908 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 256 [2020-10-15 23:59:51,909 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 64 transitions, 356 flow. Second operand 10 states. [2020-10-15 23:59:51,910 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:51,910 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 256 [2020-10-15 23:59:51,910 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:52,427 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 29 [2020-10-15 23:59:52,571 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2020-10-15 23:59:52,768 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2020-10-15 23:59:53,923 INFO L129 PetriNetUnfolder]: 549/1433 cut-off events. [2020-10-15 23:59:53,924 INFO L130 PetriNetUnfolder]: For 1304/1304 co-relation queries the response was YES. [2020-10-15 23:59:53,933 INFO L80 FinitePrefix]: Finished finitePrefix Result has 4026 conditions, 1433 events. 549/1433 cut-off events. For 1304/1304 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 10049 event pairs, 135 based on Foata normal form. 0/1373 useless extension candidates. Maximal degree in co-relation 2559. Up to 697 conditions per place. [2020-10-15 23:59:53,945 INFO L132 encePairwiseOnDemand]: 245/256 looper letters, 88 selfloop transitions, 27 changer transitions 1/128 dead transitions. [2020-10-15 23:59:53,945 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 128 transitions, 871 flow [2020-10-15 23:59:53,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 23:59:53,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-15 23:59:53,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1697 transitions. [2020-10-15 23:59:53,954 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.5099158653846154 [2020-10-15 23:59:53,954 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1697 transitions. [2020-10-15 23:59:53,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1697 transitions. [2020-10-15 23:59:53,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:53,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1697 transitions. [2020-10-15 23:59:53,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-10-15 23:59:53,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-10-15 23:59:53,969 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-10-15 23:59:53,970 INFO L185 Difference]: Start difference. First operand has 67 places, 64 transitions, 356 flow. Second operand 13 states and 1697 transitions. [2020-10-15 23:59:53,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 128 transitions, 871 flow [2020-10-15 23:59:53,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 128 transitions, 871 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-15 23:59:53,989 INFO L241 Difference]: Finished difference. Result has 86 places, 81 transitions, 555 flow [2020-10-15 23:59:53,990 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=555, PETRI_PLACES=86, PETRI_TRANSITIONS=81} [2020-10-15 23:59:53,990 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 51 predicate places. [2020-10-15 23:59:53,990 INFO L481 AbstractCegarLoop]: Abstraction has has 86 places, 81 transitions, 555 flow [2020-10-15 23:59:53,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 23:59:53,991 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:53,991 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:53,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 23:59:53,992 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:53,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:53,992 INFO L82 PathProgramCache]: Analyzing trace with hash 188548802, now seen corresponding path program 3 times [2020-10-15 23:59:53,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:53,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678897024] [2020-10-15 23:59:53,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:54,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:54,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678897024] [2020-10-15 23:59:54,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:54,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 23:59:54,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407072938] [2020-10-15 23:59:54,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 23:59:54,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:54,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 23:59:54,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 23:59:54,916 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 256 [2020-10-15 23:59:54,917 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 81 transitions, 555 flow. Second operand 10 states. [2020-10-15 23:59:54,917 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:54,917 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 256 [2020-10-15 23:59:54,918 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:55,260 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 32 [2020-10-15 23:59:55,856 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2020-10-15 23:59:57,171 INFO L129 PetriNetUnfolder]: 632/1668 cut-off events. [2020-10-15 23:59:57,171 INFO L130 PetriNetUnfolder]: For 2220/2224 co-relation queries the response was YES. [2020-10-15 23:59:57,184 INFO L80 FinitePrefix]: Finished finitePrefix Result has 5240 conditions, 1668 events. 632/1668 cut-off events. For 2220/2224 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 12158 event pairs, 184 based on Foata normal form. 4/1604 useless extension candidates. Maximal degree in co-relation 3274. Up to 859 conditions per place. [2020-10-15 23:59:57,200 INFO L132 encePairwiseOnDemand]: 245/256 looper letters, 90 selfloop transitions, 28 changer transitions 1/131 dead transitions. [2020-10-15 23:59:57,200 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 131 transitions, 1048 flow [2020-10-15 23:59:57,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 23:59:57,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-15 23:59:57,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1566 transitions. [2020-10-15 23:59:57,207 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.509765625 [2020-10-15 23:59:57,208 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1566 transitions. [2020-10-15 23:59:57,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1566 transitions. [2020-10-15 23:59:57,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:57,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1566 transitions. [2020-10-15 23:59:57,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-15 23:59:57,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-15 23:59:57,221 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-15 23:59:57,221 INFO L185 Difference]: Start difference. First operand has 86 places, 81 transitions, 555 flow. Second operand 12 states and 1566 transitions. [2020-10-15 23:59:57,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 131 transitions, 1048 flow [2020-10-15 23:59:57,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 131 transitions, 1032 flow, removed 3 selfloop flow, removed 3 redundant places. [2020-10-15 23:59:57,241 INFO L241 Difference]: Finished difference. Result has 100 places, 91 transitions, 716 flow [2020-10-15 23:59:57,241 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=716, PETRI_PLACES=100, PETRI_TRANSITIONS=91} [2020-10-15 23:59:57,242 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 65 predicate places. [2020-10-15 23:59:57,242 INFO L481 AbstractCegarLoop]: Abstraction has has 100 places, 91 transitions, 716 flow [2020-10-15 23:59:57,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 23:59:57,242 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:57,242 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:57,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 23:59:57,243 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:57,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:57,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1666321511, now seen corresponding path program 1 times [2020-10-15 23:59:57,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:57,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91231667] [2020-10-15 23:59:57,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:57,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:57,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91231667] [2020-10-15 23:59:57,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716753722] [2020-10-15 23:59:57,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-15 23:59:57,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:57,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 23:59:57,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 23:59:57,440 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 23:59:57,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-15 23:59:57,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2020-10-15 23:59:57,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81079031] [2020-10-15 23:59:57,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 23:59:57,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:57,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 23:59:57,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-15 23:59:57,444 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 256 [2020-10-15 23:59:57,445 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 91 transitions, 716 flow. Second operand 6 states. [2020-10-15 23:59:57,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:57,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 256 [2020-10-15 23:59:57,446 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:57,678 INFO L129 PetriNetUnfolder]: 91/575 cut-off events. [2020-10-15 23:59:57,679 INFO L130 PetriNetUnfolder]: For 1347/1349 co-relation queries the response was YES. [2020-10-15 23:59:57,684 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1907 conditions, 575 events. 91/575 cut-off events. For 1347/1349 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3626 event pairs, 3 based on Foata normal form. 13/580 useless extension candidates. Maximal degree in co-relation 1600. Up to 84 conditions per place. [2020-10-15 23:59:57,688 INFO L132 encePairwiseOnDemand]: 248/256 looper letters, 41 selfloop transitions, 19 changer transitions 0/109 dead transitions. [2020-10-15 23:59:57,688 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 109 transitions, 963 flow [2020-10-15 23:59:57,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 23:59:57,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-15 23:59:57,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1169 transitions. [2020-10-15 23:59:57,693 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7610677083333334 [2020-10-15 23:59:57,693 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1169 transitions. [2020-10-15 23:59:57,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1169 transitions. [2020-10-15 23:59:57,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:57,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1169 transitions. [2020-10-15 23:59:57,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-15 23:59:57,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-15 23:59:57,703 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-15 23:59:57,703 INFO L185 Difference]: Start difference. First operand has 100 places, 91 transitions, 716 flow. Second operand 6 states and 1169 transitions. [2020-10-15 23:59:57,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 109 transitions, 963 flow [2020-10-15 23:59:57,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 109 transitions, 945 flow, removed 4 selfloop flow, removed 3 redundant places. [2020-10-15 23:59:57,720 INFO L241 Difference]: Finished difference. Result has 105 places, 98 transitions, 836 flow [2020-10-15 23:59:57,721 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=836, PETRI_PLACES=105, PETRI_TRANSITIONS=98} [2020-10-15 23:59:57,721 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 70 predicate places. [2020-10-15 23:59:57,721 INFO L481 AbstractCegarLoop]: Abstraction has has 105 places, 98 transitions, 836 flow [2020-10-15 23:59:57,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 23:59:57,722 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:57,722 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2020-10-15 23:59:57,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-15 23:59:57,936 INFO L429 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:57,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:57,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1822000579, now seen corresponding path program 3 times [2020-10-15 23:59:57,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:57,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626495134] [2020-10-15 23:59:57,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:58,040 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:58,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626495134] [2020-10-15 23:59:58,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441278051] [2020-10-15 23:59:58,041 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 23:59:58,146 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-15 23:59:58,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 23:59:58,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 23:59:58,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 23:59:58,184 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:58,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 23:59:58,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2020-10-15 23:59:58,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055079738] [2020-10-15 23:59:58,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 23:59:58,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:58,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 23:59:58,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 23:59:58,189 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 256 [2020-10-15 23:59:58,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 98 transitions, 836 flow. Second operand 11 states. [2020-10-15 23:59:58,191 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:58,191 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 256 [2020-10-15 23:59:58,191 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:58,439 INFO L129 PetriNetUnfolder]: 56/509 cut-off events. [2020-10-15 23:59:58,440 INFO L130 PetriNetUnfolder]: For 1534/1536 co-relation queries the response was YES. [2020-10-15 23:59:58,445 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1754 conditions, 509 events. 56/509 cut-off events. For 1534/1536 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3094 event pairs, 0 based on Foata normal form. 5/509 useless extension candidates. Maximal degree in co-relation 1402. Up to 72 conditions per place. [2020-10-15 23:59:58,449 INFO L132 encePairwiseOnDemand]: 250/256 looper letters, 49 selfloop transitions, 22 changer transitions 0/121 dead transitions. [2020-10-15 23:59:58,449 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 121 transitions, 1172 flow [2020-10-15 23:59:58,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 23:59:58,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-15 23:59:58,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2174 transitions. [2020-10-15 23:59:58,456 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7720170454545454 [2020-10-15 23:59:58,456 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2174 transitions. [2020-10-15 23:59:58,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2174 transitions. [2020-10-15 23:59:58,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:58,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2174 transitions. [2020-10-15 23:59:58,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-10-15 23:59:58,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 12 states. [2020-10-15 23:59:58,468 INFO L81 ComplementDD]: Finished complementDD. Result 12 states. [2020-10-15 23:59:58,469 INFO L185 Difference]: Start difference. First operand has 105 places, 98 transitions, 836 flow. Second operand 11 states and 2174 transitions. [2020-10-15 23:59:58,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 121 transitions, 1172 flow [2020-10-15 23:59:58,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 121 transitions, 1154 flow, removed 9 selfloop flow, removed 0 redundant places. [2020-10-15 23:59:58,486 INFO L241 Difference]: Finished difference. Result has 117 places, 102 transitions, 926 flow [2020-10-15 23:59:58,486 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=926, PETRI_PLACES=117, PETRI_TRANSITIONS=102} [2020-10-15 23:59:58,487 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 82 predicate places. [2020-10-15 23:59:58,487 INFO L481 AbstractCegarLoop]: Abstraction has has 117 places, 102 transitions, 926 flow [2020-10-15 23:59:58,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 23:59:58,487 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:58,488 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:58,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 23:59:58,702 INFO L429 AbstractCegarLoop]: === Iteration 12 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:58,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:58,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1918787154, now seen corresponding path program 4 times [2020-10-15 23:59:58,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:58,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210187972] [2020-10-15 23:59:58,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:59,055 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-15 23:59:59,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210187972] [2020-10-15 23:59:59,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:59,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 23:59:59,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272411945] [2020-10-15 23:59:59,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 23:59:59,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:59,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 23:59:59,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-15 23:59:59,063 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 256 [2020-10-15 23:59:59,065 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 102 transitions, 926 flow. Second operand 14 states. [2020-10-15 23:59:59,066 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:59,066 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 256 [2020-10-15 23:59:59,066 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 00:00:00,913 INFO L129 PetriNetUnfolder]: 741/1968 cut-off events. [2020-10-16 00:00:00,914 INFO L130 PetriNetUnfolder]: For 5387/5391 co-relation queries the response was YES. [2020-10-16 00:00:00,935 INFO L80 FinitePrefix]: Finished finitePrefix Result has 7232 conditions, 1968 events. 741/1968 cut-off events. For 5387/5391 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 13763 event pairs, 42 based on Foata normal form. 1/1929 useless extension candidates. Maximal degree in co-relation 5154. Up to 370 conditions per place. [2020-10-16 00:00:00,952 INFO L132 encePairwiseOnDemand]: 240/256 looper letters, 95 selfloop transitions, 89 changer transitions 0/196 dead transitions. [2020-10-16 00:00:00,952 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 196 transitions, 1805 flow [2020-10-16 00:00:00,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-16 00:00:00,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-16 00:00:00,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3159 transitions. [2020-10-16 00:00:00,965 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.49359375 [2020-10-16 00:00:00,965 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3159 transitions. [2020-10-16 00:00:00,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3159 transitions. [2020-10-16 00:00:00,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 00:00:00,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3159 transitions. [2020-10-16 00:00:00,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 26 states. [2020-10-16 00:00:00,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 26 states. [2020-10-16 00:00:00,986 INFO L81 ComplementDD]: Finished complementDD. Result 26 states. [2020-10-16 00:00:00,986 INFO L185 Difference]: Start difference. First operand has 117 places, 102 transitions, 926 flow. Second operand 25 states and 3159 transitions. [2020-10-16 00:00:00,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 196 transitions, 1805 flow [2020-10-16 00:00:01,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 196 transitions, 1737 flow, removed 9 selfloop flow, removed 8 redundant places. [2020-10-16 00:00:01,011 INFO L241 Difference]: Finished difference. Result has 138 places, 131 transitions, 1380 flow [2020-10-16 00:00:01,012 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1380, PETRI_PLACES=138, PETRI_TRANSITIONS=131} [2020-10-16 00:00:01,013 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 103 predicate places. [2020-10-16 00:00:01,013 INFO L481 AbstractCegarLoop]: Abstraction has has 138 places, 131 transitions, 1380 flow [2020-10-16 00:00:01,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 00:00:01,013 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 00:00:01,013 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 00:00:01,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 00:00:01,013 INFO L429 AbstractCegarLoop]: === Iteration 13 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 00:00:01,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 00:00:01,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1646530177, now seen corresponding path program 2 times [2020-10-16 00:00:01,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 00:00:01,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417051972] [2020-10-16 00:00:01,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 00:00:01,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 00:00:01,138 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 00:00:01,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417051972] [2020-10-16 00:00:01,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785036201] [2020-10-16 00:00:01,139 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 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 00:00:01,242 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-16 00:00:01,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 00:00:01,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-16 00:00:01,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 00:00:01,303 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 00:00:01,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 00:00:01,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-16 00:00:01,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191096966] [2020-10-16 00:00:01,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 00:00:01,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 00:00:01,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 00:00:01,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-16 00:00:01,312 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 256 [2020-10-16 00:00:01,314 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 131 transitions, 1380 flow. Second operand 10 states. [2020-10-16 00:00:01,315 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 00:00:01,315 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 256 [2020-10-16 00:00:01,315 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 00:00:01,671 INFO L129 PetriNetUnfolder]: 117/769 cut-off events. [2020-10-16 00:00:01,671 INFO L130 PetriNetUnfolder]: For 2835/2836 co-relation queries the response was YES. [2020-10-16 00:00:01,679 INFO L80 FinitePrefix]: Finished finitePrefix Result has 3175 conditions, 769 events. 117/769 cut-off events. For 2835/2836 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4811 event pairs, 3 based on Foata normal form. 4/763 useless extension candidates. Maximal degree in co-relation 2297. Up to 114 conditions per place. [2020-10-16 00:00:01,686 INFO L132 encePairwiseOnDemand]: 249/256 looper letters, 77 selfloop transitions, 40 changer transitions 0/172 dead transitions. [2020-10-16 00:00:01,686 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 172 transitions, 2020 flow [2020-10-16 00:00:01,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 00:00:01,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-16 00:00:01,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2129 transitions. [2020-10-16 00:00:01,690 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7560369318181818 [2020-10-16 00:00:01,690 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2129 transitions. [2020-10-16 00:00:01,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2129 transitions. [2020-10-16 00:00:01,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 00:00:01,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2129 transitions. [2020-10-16 00:00:01,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-10-16 00:00:01,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 12 states. [2020-10-16 00:00:01,698 INFO L81 ComplementDD]: Finished complementDD. Result 12 states. [2020-10-16 00:00:01,698 INFO L185 Difference]: Start difference. First operand has 138 places, 131 transitions, 1380 flow. Second operand 11 states and 2129 transitions. [2020-10-16 00:00:01,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 172 transitions, 2020 flow [2020-10-16 00:00:01,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 172 transitions, 1674 flow, removed 124 selfloop flow, removed 14 redundant places. [2020-10-16 00:00:01,726 INFO L241 Difference]: Finished difference. Result has 139 places, 143 transitions, 1445 flow [2020-10-16 00:00:01,727 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=1165, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1445, PETRI_PLACES=139, PETRI_TRANSITIONS=143} [2020-10-16 00:00:01,727 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 104 predicate places. [2020-10-16 00:00:01,727 INFO L481 AbstractCegarLoop]: Abstraction has has 139 places, 143 transitions, 1445 flow [2020-10-16 00:00:01,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 00:00:01,727 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 00:00:01,727 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2020-10-16 00:00:01,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-10-16 00:00:01,942 INFO L429 AbstractCegarLoop]: === Iteration 14 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 00:00:01,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 00:00:01,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1080051367, now seen corresponding path program 4 times [2020-10-16 00:00:01,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 00:00:01,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031150116] [2020-10-16 00:00:01,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 00:00:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 00:00:02,069 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 00:00:02,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031150116] [2020-10-16 00:00:02,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681779955] [2020-10-16 00:00:02,070 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 00:00:02,165 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-16 00:00:02,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 00:00:02,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-16 00:00:02,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 00:00:02,247 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 00:00:02,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 00:00:02,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 12 [2020-10-16 00:00:02,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588544863] [2020-10-16 00:00:02,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-16 00:00:02,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 00:00:02,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-16 00:00:02,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-16 00:00:02,253 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 256 [2020-10-16 00:00:02,254 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 143 transitions, 1445 flow. Second operand 13 states. [2020-10-16 00:00:02,255 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 00:00:02,255 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 256 [2020-10-16 00:00:02,255 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 00:00:02,563 INFO L129 PetriNetUnfolder]: 78/691 cut-off events. [2020-10-16 00:00:02,563 INFO L130 PetriNetUnfolder]: For 2286/2287 co-relation queries the response was YES. [2020-10-16 00:00:02,569 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2439 conditions, 691 events. 78/691 cut-off events. For 2286/2287 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4311 event pairs, 0 based on Foata normal form. 4/688 useless extension candidates. Maximal degree in co-relation 2063. Up to 126 conditions per place. [2020-10-16 00:00:02,575 INFO L132 encePairwiseOnDemand]: 250/256 looper letters, 86 selfloop transitions, 32 changer transitions 0/174 dead transitions. [2020-10-16 00:00:02,575 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 174 transitions, 1927 flow [2020-10-16 00:00:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 00:00:02,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-16 00:00:02,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2569 transitions. [2020-10-16 00:00:02,580 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7719350961538461 [2020-10-16 00:00:02,581 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2569 transitions. [2020-10-16 00:00:02,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2569 transitions. [2020-10-16 00:00:02,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 00:00:02,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2569 transitions. [2020-10-16 00:00:02,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-10-16 00:00:02,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-10-16 00:00:02,590 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-10-16 00:00:02,590 INFO L185 Difference]: Start difference. First operand has 139 places, 143 transitions, 1445 flow. Second operand 13 states and 2569 transitions. [2020-10-16 00:00:02,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 174 transitions, 1927 flow [2020-10-16 00:00:02,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 174 transitions, 1879 flow, removed 10 selfloop flow, removed 4 redundant places. [2020-10-16 00:00:02,616 INFO L241 Difference]: Finished difference. Result has 149 places, 147 transitions, 1539 flow [2020-10-16 00:00:02,617 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=1398, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1539, PETRI_PLACES=149, PETRI_TRANSITIONS=147} [2020-10-16 00:00:02,617 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 114 predicate places. [2020-10-16 00:00:02,617 INFO L481 AbstractCegarLoop]: Abstraction has has 149 places, 147 transitions, 1539 flow [2020-10-16 00:00:02,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-16 00:00:02,618 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 00:00:02,618 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 00:00:02,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 00:00:02,832 INFO L429 AbstractCegarLoop]: === Iteration 15 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 00:00:02,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 00:00:02,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1334498623, now seen corresponding path program 1 times [2020-10-16 00:00:02,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 00:00:02,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069153774] [2020-10-16 00:00:02,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 00:00:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 00:00:02,909 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 22: A-local: [(t1Thread1of1ForFork0_push_~stack.offset_4 Int), (|t1Thread1of1ForFork0_push_#t~ret35_6| Int)], B-local: []. [2020-10-16 00:00:02,912 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 23: A-local: [(t1Thread1of1ForFork0_push_~stack.offset_4 Int), (|t1Thread1of1ForFork0_push_#t~ret35_6| Int)], B-local: []. [2020-10-16 00:00:02,914 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 24: A-local: [(t1Thread1of1ForFork0_push_~stack.offset_4 Int), (|t1Thread1of1ForFork0_push_#t~ret35_6| Int)], B-local: []. [2020-10-16 00:00:02,918 ERROR L253 erpolLogProxyWrapper]: Interpolant 25 not inductive [2020-10-16 00:00:02,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-16 00:00:02,932 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:876) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:360) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-10-16 00:00:02,936 INFO L168 Benchmark]: Toolchain (without parser) took 22973.71 ms. Allocated memory was 249.6 MB in the beginning and 581.4 MB in the end (delta: 331.9 MB). Free memory was 202.1 MB in the beginning and 249.5 MB in the end (delta: -47.4 MB). Peak memory consumption was 284.5 MB. Max. memory is 14.2 GB. [2020-10-16 00:00:02,936 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 249.6 MB. Free memory is still 223.4 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 00:00:02,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 874.73 ms. Allocated memory was 249.6 MB in the beginning and 309.9 MB in the end (delta: 60.3 MB). Free memory was 202.1 MB in the beginning and 237.9 MB in the end (delta: -35.8 MB). Peak memory consumption was 34.7 MB. Max. memory is 14.2 GB. [2020-10-16 00:00:02,938 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.63 ms. Allocated memory is still 309.9 MB. Free memory was 237.9 MB in the beginning and 235.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 00:00:02,938 INFO L168 Benchmark]: Boogie Preprocessor took 41.56 ms. Allocated memory is still 309.9 MB. Free memory was 235.3 MB in the beginning and 232.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 00:00:02,939 INFO L168 Benchmark]: RCFGBuilder took 617.77 ms. Allocated memory is still 309.9 MB. Free memory was 232.8 MB in the beginning and 198.3 MB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 14.2 GB. [2020-10-16 00:00:02,940 INFO L168 Benchmark]: TraceAbstraction took 21365.84 ms. Allocated memory was 309.9 MB in the beginning and 581.4 MB in the end (delta: 271.6 MB). Free memory was 198.3 MB in the beginning and 249.5 MB in the end (delta: -51.1 MB). Peak memory consumption was 220.4 MB. Max. memory is 14.2 GB. [2020-10-16 00:00:02,943 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 249.6 MB. Free memory is still 223.4 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 874.73 ms. Allocated memory was 249.6 MB in the beginning and 309.9 MB in the end (delta: 60.3 MB). Free memory was 202.1 MB in the beginning and 237.9 MB in the end (delta: -35.8 MB). Peak memory consumption was 34.7 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 66.63 ms. Allocated memory is still 309.9 MB. Free memory was 237.9 MB in the beginning and 235.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 41.56 ms. Allocated memory is still 309.9 MB. Free memory was 235.3 MB in the beginning and 232.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 617.77 ms. Allocated memory is still 309.9 MB. Free memory was 232.8 MB in the beginning and 198.3 MB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 14.2 GB. * TraceAbstraction took 21365.84 ms. Allocated memory was 309.9 MB in the beginning and 581.4 MB in the end (delta: 271.6 MB). Free memory was 198.3 MB in the beginning and 249.5 MB in the end (delta: -51.1 MB). Peak memory consumption was 220.4 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 4050 VarBasedMoverChecksPositive, 70 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 61 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 335 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.0s, 122 PlacesBefore, 35 PlacesAfterwards, 126 TransitionsBefore, 34 TransitionsAfterwards, 5744 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 76 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 17 ConcurrentYvCompositions, 5 ChoiceCompositions, 118 TotalNumberOfCompositions, 9349 MoverChecksTotal - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...