/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread/queue.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 10:46:39,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 10:46:39,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 10:46:39,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 10:46:39,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 10:46:39,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 10:46:39,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 10:46:39,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 10:46:39,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 10:46:39,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 10:46:39,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 10:46:39,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 10:46:39,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 10:46:39,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 10:46:39,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 10:46:39,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 10:46:39,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 10:46:39,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 10:46:39,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 10:46:39,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 10:46:39,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 10:46:39,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 10:46:39,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 10:46:39,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 10:46:39,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 10:46:39,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 10:46:39,427 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 10:46:39,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 10:46:39,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 10:46:39,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 10:46:39,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 10:46:39,430 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 10:46:39,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 10:46:39,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 10:46:39,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 10:46:39,433 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 10:46:39,433 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 10:46:39,434 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 10:46:39,434 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 10:46:39,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 10:46:39,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 10:46:39,436 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 10:46:39,458 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 10:46:39,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 10:46:39,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 10:46:39,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 10:46:39,460 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 10:46:39,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 10:46:39,461 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 10:46:39,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 10:46:39,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 10:46:39,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 10:46:39,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 10:46:39,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 10:46:39,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 10:46:39,462 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 10:46:39,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 10:46:39,462 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 10:46:39,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 10:46:39,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 10:46:39,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 10:46:39,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 10:46:39,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 10:46:39,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 10:46:39,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 10:46:39,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 10:46:39,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 10:46:39,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 10:46:39,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 10:46:39,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 10:46:39,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 10:46:39,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 10:46:39,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 10:46:39,784 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 10:46:39,787 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 10:46:39,788 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 10:46:39,789 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 10:46:39,789 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue.i [2020-10-16 10:46:39,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad51b1f83/adbbb6a43ac44a3ca003d4e5d5a3029c/FLAG589777874 [2020-10-16 10:46:40,391 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 10:46:40,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread/queue.i [2020-10-16 10:46:40,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad51b1f83/adbbb6a43ac44a3ca003d4e5d5a3029c/FLAG589777874 [2020-10-16 10:46:40,661 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad51b1f83/adbbb6a43ac44a3ca003d4e5d5a3029c [2020-10-16 10:46:40,670 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 10:46:40,672 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 10:46:40,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 10:46:40,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 10:46:40,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 10:46:40,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:46:40" (1/1) ... [2020-10-16 10:46:40,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15d4a849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:40, skipping insertion in model container [2020-10-16 10:46:40,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:46:40" (1/1) ... [2020-10-16 10:46:40,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 10:46:40,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 10:46:41,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 10:46:41,348 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 10:46:41,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 10:46:41,599 INFO L208 MainTranslator]: Completed translation [2020-10-16 10:46:41,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:41 WrapperNode [2020-10-16 10:46:41,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 10:46:41,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 10:46:41,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 10:46:41,602 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 10:46:41,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:41" (1/1) ... [2020-10-16 10:46:41,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:41" (1/1) ... [2020-10-16 10:46:41,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 10:46:41,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 10:46:41,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 10:46:41,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 10:46:41,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:41" (1/1) ... [2020-10-16 10:46:41,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:41" (1/1) ... [2020-10-16 10:46:41,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:41" (1/1) ... [2020-10-16 10:46:41,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:41" (1/1) ... [2020-10-16 10:46:41,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:41" (1/1) ... [2020-10-16 10:46:41,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:41" (1/1) ... [2020-10-16 10:46:41,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:41" (1/1) ... [2020-10-16 10:46:41,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 10:46:41,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 10:46:41,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 10:46:41,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 10:46:41,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 10:46:41,806 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-16 10:46:41,806 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-16 10:46:41,806 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-16 10:46:41,806 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-16 10:46:41,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 10:46:41,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 10:46:41,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 10:46:41,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 10:46:41,807 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 10:46:41,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 10:46:41,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 10:46:41,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 10:46:41,810 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 10:46:42,446 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 10:46:42,446 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-16 10:46:42,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:46:42 BoogieIcfgContainer [2020-10-16 10:46:42,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 10:46:42,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 10:46:42,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 10:46:42,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 10:46:42,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:46:40" (1/3) ... [2020-10-16 10:46:42,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e042d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:46:42, skipping insertion in model container [2020-10-16 10:46:42,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:41" (2/3) ... [2020-10-16 10:46:42,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e042d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:46:42, skipping insertion in model container [2020-10-16 10:46:42,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:46:42" (3/3) ... [2020-10-16 10:46:42,457 INFO L111 eAbstractionObserver]: Analyzing ICFG queue.i [2020-10-16 10:46:42,469 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 10:46:42,469 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 10:46:42,477 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-16 10:46:42,478 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 10:46:42,518 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,518 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,518 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,519 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,519 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,519 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,519 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,520 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,520 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,520 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,520 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,521 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,521 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,521 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,521 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,521 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,522 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,522 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,522 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,522 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,523 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,523 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,523 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,523 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,523 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,524 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,524 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,524 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,524 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,524 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,525 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,525 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,525 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,525 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,525 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,526 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,526 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,526 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,526 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,526 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,527 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,527 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,527 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,527 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,527 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,528 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,528 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,528 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,528 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,528 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,529 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,529 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,529 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,529 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,529 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,530 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,530 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,530 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,530 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,530 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,531 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,531 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,531 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,531 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,531 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,531 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,532 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,532 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,532 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,532 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,532 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,533 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,533 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,533 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,533 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,533 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,534 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,534 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,534 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,534 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,535 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,535 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,535 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,535 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,535 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,536 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,536 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,536 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,536 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,536 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,536 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,537 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,537 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,537 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,537 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,537 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,538 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,538 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,538 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,538 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,538 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,539 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,539 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,539 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,539 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,539 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,540 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,540 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,540 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,540 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,540 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,541 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,541 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,541 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,541 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,541 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,542 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,542 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,542 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,542 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,542 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,543 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,543 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,543 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,543 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,543 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,544 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,544 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,544 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,544 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,544 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,544 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,545 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,545 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,545 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,545 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,545 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,545 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,546 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,546 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,546 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,546 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,546 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,546 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,547 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,547 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,547 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,547 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,547 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,547 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,548 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,548 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,548 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,548 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,548 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,548 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,549 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,549 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,549 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,549 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,549 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,549 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,550 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,550 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,550 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,550 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,550 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,550 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,551 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,551 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,551 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,551 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,551 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,552 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,552 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,552 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,552 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,552 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,552 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,553 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,553 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,553 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,553 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,553 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,554 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,554 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,554 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,554 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,554 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,554 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,555 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,555 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,555 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,555 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,556 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,556 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,557 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,557 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,557 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,557 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,557 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,558 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,558 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,558 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,558 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,558 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,559 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,559 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,559 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,559 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,559 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,560 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,560 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,560 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,560 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,560 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,560 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,561 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,561 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,561 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,561 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,561 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,561 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,562 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,562 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,562 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,562 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,562 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,563 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,563 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,563 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,563 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,563 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,563 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,564 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,564 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,564 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,564 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,564 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,564 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,565 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,565 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,565 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,565 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,565 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,565 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,566 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,566 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,566 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,566 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,566 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,566 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,567 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,567 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,567 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,567 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,567 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,568 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,568 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,568 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,568 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,568 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,568 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,569 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,569 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,569 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,569 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,569 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,570 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,570 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,570 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,570 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,570 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,570 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,571 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,571 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,571 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,571 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,571 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,571 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,572 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,572 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,572 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,572 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,576 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,576 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,577 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,577 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,577 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,577 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,577 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,578 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,578 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,578 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,578 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,578 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,578 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,579 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,579 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,579 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,579 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,579 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,580 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,580 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,580 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,580 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,580 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,580 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,581 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,581 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,581 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,581 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,581 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,582 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,582 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,582 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,582 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,582 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,582 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,592 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,592 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,592 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,592 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,593 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,593 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,593 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,593 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,593 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,594 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,594 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,594 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,594 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,595 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,595 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,595 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,595 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,595 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,596 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,596 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,596 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,596 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:46:42,605 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-16 10:46:42,619 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-16 10:46:42,638 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 10:46:42,638 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 10:46:42,639 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 10:46:42,639 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 10:46:42,639 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 10:46:42,639 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 10:46:42,639 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 10:46:42,639 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 10:46:42,656 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 10:46:42,659 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 234 places, 244 transitions, 510 flow [2020-10-16 10:46:42,661 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 234 places, 244 transitions, 510 flow [2020-10-16 10:46:42,663 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 234 places, 244 transitions, 510 flow [2020-10-16 10:46:42,758 INFO L129 PetriNetUnfolder]: 16/244 cut-off events. [2020-10-16 10:46:42,758 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 10:46:42,767 INFO L80 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 244 events. 16/244 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 381 event pairs, 0 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 179. Up to 3 conditions per place. [2020-10-16 10:46:42,780 INFO L117 LiptonReduction]: Number of co-enabled transitions 14896 [2020-10-16 10:46:46,385 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-10-16 10:46:47,276 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-16 10:46:47,448 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-16 10:46:48,362 WARN L193 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 129 [2020-10-16 10:46:48,657 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-16 10:46:49,574 WARN L193 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 132 [2020-10-16 10:46:50,026 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-16 10:46:50,454 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-16 10:46:50,806 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-16 10:46:52,328 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2020-10-16 10:46:52,748 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-16 10:46:52,767 INFO L132 LiptonReduction]: Checked pairs total: 39936 [2020-10-16 10:46:52,767 INFO L134 LiptonReduction]: Total number of compositions: 207 [2020-10-16 10:46:52,773 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 72 transitions, 166 flow [2020-10-16 10:46:52,836 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1165 states. [2020-10-16 10:46:52,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states. [2020-10-16 10:46:52,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-10-16 10:46:52,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:46:52,845 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-10-16 10:46:52,845 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:46:52,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:46:52,851 INFO L82 PathProgramCache]: Analyzing trace with hash 30247, now seen corresponding path program 1 times [2020-10-16 10:46:52,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:46:52,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244722689] [2020-10-16 10:46:52,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:46:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:46:52,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:46:52,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244722689] [2020-10-16 10:46:52,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:46:52,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 10:46:52,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763369953] [2020-10-16 10:46:52,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 10:46:52,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:46:53,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 10:46:53,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 10:46:53,006 INFO L87 Difference]: Start difference. First operand 1165 states. Second operand 2 states. [2020-10-16 10:46:53,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:46:53,095 INFO L93 Difference]: Finished difference Result 1163 states and 3076 transitions. [2020-10-16 10:46:53,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 10:46:53,100 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 2 [2020-10-16 10:46:53,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:46:53,130 INFO L225 Difference]: With dead ends: 1163 [2020-10-16 10:46:53,130 INFO L226 Difference]: Without dead ends: 1077 [2020-10-16 10:46:53,131 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 10:46:53,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2020-10-16 10:46:53,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1077. [2020-10-16 10:46:53,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1077 states. [2020-10-16 10:46:53,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 2875 transitions. [2020-10-16 10:46:53,273 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 2875 transitions. Word has length 2 [2020-10-16 10:46:53,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:46:53,273 INFO L481 AbstractCegarLoop]: Abstraction has 1077 states and 2875 transitions. [2020-10-16 10:46:53,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 10:46:53,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 2875 transitions. [2020-10-16 10:46:53,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 10:46:53,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:46:53,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:46:53,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 10:46:53,276 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:46:53,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:46:53,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1551148377, now seen corresponding path program 1 times [2020-10-16 10:46:53,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:46:53,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564519527] [2020-10-16 10:46:53,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:46:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:46:53,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:46:53,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564519527] [2020-10-16 10:46:53,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:46:53,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 10:46:53,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135392246] [2020-10-16 10:46:53,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:46:53,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:46:53,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:46:53,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:46:53,451 INFO L87 Difference]: Start difference. First operand 1077 states and 2875 transitions. Second operand 3 states. [2020-10-16 10:46:53,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:46:53,478 INFO L93 Difference]: Finished difference Result 1077 states and 2838 transitions. [2020-10-16 10:46:53,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:46:53,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 10:46:53,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:46:53,487 INFO L225 Difference]: With dead ends: 1077 [2020-10-16 10:46:53,487 INFO L226 Difference]: Without dead ends: 1077 [2020-10-16 10:46:53,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:46:53,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2020-10-16 10:46:53,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1077. [2020-10-16 10:46:53,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1077 states. [2020-10-16 10:46:53,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 2838 transitions. [2020-10-16 10:46:53,521 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 2838 transitions. Word has length 11 [2020-10-16 10:46:53,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:46:53,521 INFO L481 AbstractCegarLoop]: Abstraction has 1077 states and 2838 transitions. [2020-10-16 10:46:53,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:46:53,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 2838 transitions. [2020-10-16 10:46:53,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 10:46:53,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:46:53,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:46:53,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 10:46:53,525 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:46:53,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:46:53,525 INFO L82 PathProgramCache]: Analyzing trace with hash 304222627, now seen corresponding path program 1 times [2020-10-16 10:46:53,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:46:53,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351024356] [2020-10-16 10:46:53,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:46:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:46:54,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:46:54,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351024356] [2020-10-16 10:46:54,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:46:54,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 10:46:54,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495208286] [2020-10-16 10:46:54,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 10:46:54,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:46:54,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 10:46:54,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 10:46:54,054 INFO L87 Difference]: Start difference. First operand 1077 states and 2838 transitions. Second operand 6 states. [2020-10-16 10:46:54,285 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-16 10:46:54,644 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-16 10:46:55,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:46:55,210 INFO L93 Difference]: Finished difference Result 1076 states and 2835 transitions. [2020-10-16 10:46:55,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 10:46:55,211 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-16 10:46:55,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:46:55,220 INFO L225 Difference]: With dead ends: 1076 [2020-10-16 10:46:55,221 INFO L226 Difference]: Without dead ends: 1076 [2020-10-16 10:46:55,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-16 10:46:55,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2020-10-16 10:46:55,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1076. [2020-10-16 10:46:55,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1076 states. [2020-10-16 10:46:55,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 2835 transitions. [2020-10-16 10:46:55,257 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 2835 transitions. Word has length 13 [2020-10-16 10:46:55,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:46:55,257 INFO L481 AbstractCegarLoop]: Abstraction has 1076 states and 2835 transitions. [2020-10-16 10:46:55,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 10:46:55,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 2835 transitions. [2020-10-16 10:46:55,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 10:46:55,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:46:55,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:46:55,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 10:46:55,265 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:46:55,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:46:55,265 INFO L82 PathProgramCache]: Analyzing trace with hash 2053158153, now seen corresponding path program 1 times [2020-10-16 10:46:55,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:46:55,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528343906] [2020-10-16 10:46:55,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:46:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:46:55,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:46:55,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528343906] [2020-10-16 10:46:55,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:46:55,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 10:46:55,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343873501] [2020-10-16 10:46:55,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:46:55,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:46:55,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:46:55,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:46:55,344 INFO L87 Difference]: Start difference. First operand 1076 states and 2835 transitions. Second operand 3 states. [2020-10-16 10:46:55,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:46:55,365 INFO L93 Difference]: Finished difference Result 941 states and 2417 transitions. [2020-10-16 10:46:55,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:46:55,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-16 10:46:55,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:46:55,372 INFO L225 Difference]: With dead ends: 941 [2020-10-16 10:46:55,372 INFO L226 Difference]: Without dead ends: 909 [2020-10-16 10:46:55,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:46:55,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2020-10-16 10:46:55,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 909. [2020-10-16 10:46:55,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 909 states. [2020-10-16 10:46:55,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 2342 transitions. [2020-10-16 10:46:55,399 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 2342 transitions. Word has length 13 [2020-10-16 10:46:55,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:46:55,400 INFO L481 AbstractCegarLoop]: Abstraction has 909 states and 2342 transitions. [2020-10-16 10:46:55,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:46:55,400 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 2342 transitions. [2020-10-16 10:46:55,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 10:46:55,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:46:55,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:46:55,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 10:46:55,401 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:46:55,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:46:55,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1470878311, now seen corresponding path program 1 times [2020-10-16 10:46:55,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:46:55,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003547909] [2020-10-16 10:46:55,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:46:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:46:55,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:46:55,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003547909] [2020-10-16 10:46:55,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:46:55,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 10:46:55,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441565528] [2020-10-16 10:46:55,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 10:46:55,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:46:55,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 10:46:55,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-16 10:46:55,576 INFO L87 Difference]: Start difference. First operand 909 states and 2342 transitions. Second operand 7 states. [2020-10-16 10:46:55,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:46:55,870 INFO L93 Difference]: Finished difference Result 993 states and 2540 transitions. [2020-10-16 10:46:55,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 10:46:55,871 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-16 10:46:55,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:46:55,878 INFO L225 Difference]: With dead ends: 993 [2020-10-16 10:46:55,878 INFO L226 Difference]: Without dead ends: 993 [2020-10-16 10:46:55,879 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-16 10:46:55,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2020-10-16 10:46:55,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 965. [2020-10-16 10:46:55,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-10-16 10:46:55,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 2474 transitions. [2020-10-16 10:46:55,916 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 2474 transitions. Word has length 14 [2020-10-16 10:46:55,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:46:55,916 INFO L481 AbstractCegarLoop]: Abstraction has 965 states and 2474 transitions. [2020-10-16 10:46:55,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 10:46:55,917 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 2474 transitions. [2020-10-16 10:46:55,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 10:46:55,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:46:55,918 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:46:55,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 10:46:55,919 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:46:55,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:46:55,919 INFO L82 PathProgramCache]: Analyzing trace with hash -69142429, now seen corresponding path program 2 times [2020-10-16 10:46:55,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:46:55,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061322570] [2020-10-16 10:46:55,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:46:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:46:56,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:46:56,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061322570] [2020-10-16 10:46:56,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:46:56,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 10:46:56,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429940698] [2020-10-16 10:46:56,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 10:46:56,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:46:56,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 10:46:56,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-16 10:46:56,434 INFO L87 Difference]: Start difference. First operand 965 states and 2474 transitions. Second operand 7 states. [2020-10-16 10:46:56,677 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-16 10:46:56,894 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-16 10:46:57,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:46:57,442 INFO L93 Difference]: Finished difference Result 1035 states and 2639 transitions. [2020-10-16 10:46:57,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 10:46:57,445 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-16 10:46:57,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:46:57,451 INFO L225 Difference]: With dead ends: 1035 [2020-10-16 10:46:57,451 INFO L226 Difference]: Without dead ends: 1035 [2020-10-16 10:46:57,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-16 10:46:57,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2020-10-16 10:46:57,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 951. [2020-10-16 10:46:57,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 951 states. [2020-10-16 10:46:57,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 2441 transitions. [2020-10-16 10:46:57,476 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 2441 transitions. Word has length 14 [2020-10-16 10:46:57,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:46:57,476 INFO L481 AbstractCegarLoop]: Abstraction has 951 states and 2441 transitions. [2020-10-16 10:46:57,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 10:46:57,477 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 2441 transitions. [2020-10-16 10:46:57,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 10:46:57,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:46:57,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:46:57,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 10:46:57,478 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:46:57,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:46:57,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1011820279, now seen corresponding path program 3 times [2020-10-16 10:46:57,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:46:57,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604277216] [2020-10-16 10:46:57,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:46:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:46:57,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:46:57,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604277216] [2020-10-16 10:46:57,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:46:57,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 10:46:57,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061104410] [2020-10-16 10:46:57,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 10:46:57,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:46:57,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 10:46:57,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-16 10:46:57,854 INFO L87 Difference]: Start difference. First operand 951 states and 2441 transitions. Second operand 7 states. [2020-10-16 10:46:58,063 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-16 10:46:58,355 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-16 10:46:58,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:46:58,843 INFO L93 Difference]: Finished difference Result 937 states and 2394 transitions. [2020-10-16 10:46:58,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 10:46:58,844 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-16 10:46:58,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:46:58,850 INFO L225 Difference]: With dead ends: 937 [2020-10-16 10:46:58,851 INFO L226 Difference]: Without dead ends: 937 [2020-10-16 10:46:58,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-16 10:46:58,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2020-10-16 10:46:58,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 895. [2020-10-16 10:46:58,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 895 states. [2020-10-16 10:46:58,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 2295 transitions. [2020-10-16 10:46:58,873 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 2295 transitions. Word has length 14 [2020-10-16 10:46:58,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:46:58,873 INFO L481 AbstractCegarLoop]: Abstraction has 895 states and 2295 transitions. [2020-10-16 10:46:58,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 10:46:58,874 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 2295 transitions. [2020-10-16 10:46:58,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 10:46:58,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:46:58,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:46:58,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 10:46:58,875 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:46:58,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:46:58,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1520950043, now seen corresponding path program 1 times [2020-10-16 10:46:58,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:46:58,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345847438] [2020-10-16 10:46:58,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:46:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:46:59,079 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2020-10-16 10:46:59,240 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-10-16 10:46:59,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:46:59,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345847438] [2020-10-16 10:46:59,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:46:59,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 10:46:59,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10294580] [2020-10-16 10:46:59,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 10:46:59,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:46:59,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 10:46:59,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-16 10:46:59,519 INFO L87 Difference]: Start difference. First operand 895 states and 2295 transitions. Second operand 10 states. [2020-10-16 10:46:59,817 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2020-10-16 10:47:00,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:47:00,308 INFO L93 Difference]: Finished difference Result 893 states and 2291 transitions. [2020-10-16 10:47:00,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 10:47:00,309 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-10-16 10:47:00,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:47:00,314 INFO L225 Difference]: With dead ends: 893 [2020-10-16 10:47:00,314 INFO L226 Difference]: Without dead ends: 893 [2020-10-16 10:47:00,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-10-16 10:47:00,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2020-10-16 10:47:00,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 893. [2020-10-16 10:47:00,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 893 states. [2020-10-16 10:47:00,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 2291 transitions. [2020-10-16 10:47:00,335 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 2291 transitions. Word has length 14 [2020-10-16 10:47:00,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:47:00,336 INFO L481 AbstractCegarLoop]: Abstraction has 893 states and 2291 transitions. [2020-10-16 10:47:00,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 10:47:00,336 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 2291 transitions. [2020-10-16 10:47:00,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 10:47:00,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:47:00,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:47:00,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 10:47:00,337 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:47:00,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:47:00,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1967571483, now seen corresponding path program 1 times [2020-10-16 10:47:00,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:47:00,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099180991] [2020-10-16 10:47:00,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:47:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:47:00,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:47:00,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099180991] [2020-10-16 10:47:00,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:47:00,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 10:47:00,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205539956] [2020-10-16 10:47:00,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 10:47:00,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:47:00,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 10:47:00,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-16 10:47:00,691 INFO L87 Difference]: Start difference. First operand 893 states and 2291 transitions. Second operand 11 states. [2020-10-16 10:47:01,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:47:01,394 INFO L93 Difference]: Finished difference Result 989 states and 2526 transitions. [2020-10-16 10:47:01,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 10:47:01,394 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 15 [2020-10-16 10:47:01,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:47:01,400 INFO L225 Difference]: With dead ends: 989 [2020-10-16 10:47:01,400 INFO L226 Difference]: Without dead ends: 934 [2020-10-16 10:47:01,400 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-10-16 10:47:01,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2020-10-16 10:47:01,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 880. [2020-10-16 10:47:01,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2020-10-16 10:47:01,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 2269 transitions. [2020-10-16 10:47:01,420 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 2269 transitions. Word has length 15 [2020-10-16 10:47:01,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:47:01,420 INFO L481 AbstractCegarLoop]: Abstraction has 880 states and 2269 transitions. [2020-10-16 10:47:01,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 10:47:01,421 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 2269 transitions. [2020-10-16 10:47:01,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 10:47:01,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:47:01,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:47:01,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 10:47:01,422 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:47:01,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:47:01,422 INFO L82 PathProgramCache]: Analyzing trace with hash -188053239, now seen corresponding path program 2 times [2020-10-16 10:47:01,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:47:01,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187019627] [2020-10-16 10:47:01,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:47:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:47:01,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:47:01,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187019627] [2020-10-16 10:47:01,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:47:01,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 10:47:01,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244801999] [2020-10-16 10:47:01,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 10:47:01,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:47:01,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 10:47:01,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-16 10:47:01,738 INFO L87 Difference]: Start difference. First operand 880 states and 2269 transitions. Second operand 11 states. [2020-10-16 10:47:02,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:47:02,308 INFO L93 Difference]: Finished difference Result 992 states and 2552 transitions. [2020-10-16 10:47:02,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 10:47:02,309 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 15 [2020-10-16 10:47:02,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:47:02,314 INFO L225 Difference]: With dead ends: 992 [2020-10-16 10:47:02,314 INFO L226 Difference]: Without dead ends: 977 [2020-10-16 10:47:02,315 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2020-10-16 10:47:02,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-10-16 10:47:02,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 866. [2020-10-16 10:47:02,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2020-10-16 10:47:02,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 2236 transitions. [2020-10-16 10:47:02,334 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 2236 transitions. Word has length 15 [2020-10-16 10:47:02,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:47:02,335 INFO L481 AbstractCegarLoop]: Abstraction has 866 states and 2236 transitions. [2020-10-16 10:47:02,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 10:47:02,335 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 2236 transitions. [2020-10-16 10:47:02,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 10:47:02,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:47:02,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:47:02,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 10:47:02,336 INFO L429 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:47:02,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:47:02,336 INFO L82 PathProgramCache]: Analyzing trace with hash -96892779, now seen corresponding path program 3 times [2020-10-16 10:47:02,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:47:02,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524754976] [2020-10-16 10:47:02,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:47:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:47:02,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:47:02,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524754976] [2020-10-16 10:47:02,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:47:02,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 10:47:02,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971041654] [2020-10-16 10:47:02,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 10:47:02,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:47:02,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 10:47:02,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-16 10:47:02,695 INFO L87 Difference]: Start difference. First operand 866 states and 2236 transitions. Second operand 11 states. [2020-10-16 10:47:03,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:47:03,316 INFO L93 Difference]: Finished difference Result 910 states and 2345 transitions. [2020-10-16 10:47:03,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 10:47:03,317 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 15 [2020-10-16 10:47:03,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:47:03,321 INFO L225 Difference]: With dead ends: 910 [2020-10-16 10:47:03,321 INFO L226 Difference]: Without dead ends: 900 [2020-10-16 10:47:03,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2020-10-16 10:47:03,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2020-10-16 10:47:03,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 852. [2020-10-16 10:47:03,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 852 states. [2020-10-16 10:47:03,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 2203 transitions. [2020-10-16 10:47:03,339 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 2203 transitions. Word has length 15 [2020-10-16 10:47:03,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:47:03,340 INFO L481 AbstractCegarLoop]: Abstraction has 852 states and 2203 transitions. [2020-10-16 10:47:03,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 10:47:03,340 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 2203 transitions. [2020-10-16 10:47:03,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 10:47:03,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:47:03,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:47:03,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 10:47:03,341 INFO L429 AbstractCegarLoop]: === Iteration 12 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:47:03,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:47:03,341 INFO L82 PathProgramCache]: Analyzing trace with hash -95278299, now seen corresponding path program 4 times [2020-10-16 10:47:03,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:47:03,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915409490] [2020-10-16 10:47:03,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:47:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:47:07,801 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 33 [2020-10-16 10:47:08,171 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 37 [2020-10-16 10:47:08,460 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 43 [2020-10-16 10:47:08,889 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 52 [2020-10-16 10:47:09,591 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 54 [2020-10-16 10:47:10,480 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2020-10-16 10:47:11,176 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2020-10-16 10:47:11,866 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-10-16 10:47:12,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:47:12,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915409490] [2020-10-16 10:47:12,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:47:12,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 10:47:12,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155572219] [2020-10-16 10:47:12,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 10:47:12,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:47:12,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 10:47:12,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-10-16 10:47:12,038 INFO L87 Difference]: Start difference. First operand 852 states and 2203 transitions. Second operand 12 states. [2020-10-16 10:47:12,604 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-10-16 10:47:15,064 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-10-16 10:47:18,596 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification that was a NOOP. DAG size: 103 [2020-10-16 10:47:23,528 WARN L193 SmtUtils]: Spent 3.23 s on a formula simplification that was a NOOP. DAG size: 115 [2020-10-16 10:47:31,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:47:31,095 INFO L93 Difference]: Finished difference Result 854 states and 2218 transitions. [2020-10-16 10:47:31,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 10:47:31,096 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-10-16 10:47:31,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:47:31,100 INFO L225 Difference]: With dead ends: 854 [2020-10-16 10:47:31,100 INFO L226 Difference]: Without dead ends: 849 [2020-10-16 10:47:31,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-16 10:47:31,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2020-10-16 10:47:31,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 810. [2020-10-16 10:47:31,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 810 states. [2020-10-16 10:47:31,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 2109 transitions. [2020-10-16 10:47:31,116 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 2109 transitions. Word has length 15 [2020-10-16 10:47:31,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:47:31,117 INFO L481 AbstractCegarLoop]: Abstraction has 810 states and 2109 transitions. [2020-10-16 10:47:31,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 10:47:31,117 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 2109 transitions. [2020-10-16 10:47:31,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-16 10:47:31,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:47:31,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:47:31,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 10:47:31,119 INFO L429 AbstractCegarLoop]: === Iteration 13 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:47:31,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:47:31,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1510697184, now seen corresponding path program 1 times [2020-10-16 10:47:31,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:47:31,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324801106] [2020-10-16 10:47:31,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:47:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:47:31,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:47:31,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324801106] [2020-10-16 10:47:31,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:47:31,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 10:47:31,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677586976] [2020-10-16 10:47:31,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:47:31,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:47:31,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:47:31,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:47:31,152 INFO L87 Difference]: Start difference. First operand 810 states and 2109 transitions. Second operand 3 states. [2020-10-16 10:47:31,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:47:31,191 INFO L93 Difference]: Finished difference Result 373 states and 802 transitions. [2020-10-16 10:47:31,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:47:31,193 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-10-16 10:47:31,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:47:31,195 INFO L225 Difference]: With dead ends: 373 [2020-10-16 10:47:31,195 INFO L226 Difference]: Without dead ends: 367 [2020-10-16 10:47:31,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:47:31,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2020-10-16 10:47:31,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 301. [2020-10-16 10:47:31,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-10-16 10:47:31,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 653 transitions. [2020-10-16 10:47:31,201 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 653 transitions. Word has length 35 [2020-10-16 10:47:31,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:47:31,202 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 653 transitions. [2020-10-16 10:47:31,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:47:31,202 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 653 transitions. [2020-10-16 10:47:31,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-16 10:47:31,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:47:31,203 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:47:31,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-16 10:47:31,204 INFO L429 AbstractCegarLoop]: === Iteration 14 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:47:31,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:47:31,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1665489794, now seen corresponding path program 1 times [2020-10-16 10:47:31,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:47:31,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174704488] [2020-10-16 10:47:31,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:47:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:47:31,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:47:31,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174704488] [2020-10-16 10:47:31,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:47:31,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-16 10:47:31,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121896500] [2020-10-16 10:47:31,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-16 10:47:31,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:47:31,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-16 10:47:31,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-10-16 10:47:31,731 INFO L87 Difference]: Start difference. First operand 301 states and 653 transitions. Second operand 16 states. [2020-10-16 10:47:32,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:47:32,716 INFO L93 Difference]: Finished difference Result 353 states and 760 transitions. [2020-10-16 10:47:32,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 10:47:32,717 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 36 [2020-10-16 10:47:32,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:47:32,720 INFO L225 Difference]: With dead ends: 353 [2020-10-16 10:47:32,720 INFO L226 Difference]: Without dead ends: 353 [2020-10-16 10:47:32,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2020-10-16 10:47:32,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2020-10-16 10:47:32,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 341. [2020-10-16 10:47:32,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-10-16 10:47:32,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 736 transitions. [2020-10-16 10:47:32,727 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 736 transitions. Word has length 36 [2020-10-16 10:47:32,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:47:32,727 INFO L481 AbstractCegarLoop]: Abstraction has 341 states and 736 transitions. [2020-10-16 10:47:32,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-16 10:47:32,728 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 736 transitions. [2020-10-16 10:47:32,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-16 10:47:32,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:47:32,729 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:47:32,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-16 10:47:32,730 INFO L429 AbstractCegarLoop]: === Iteration 15 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:47:32,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:47:32,730 INFO L82 PathProgramCache]: Analyzing trace with hash 761278187, now seen corresponding path program 1 times [2020-10-16 10:47:32,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:47:32,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918027645] [2020-10-16 10:47:32,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:47:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:47:34,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:47:34,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918027645] [2020-10-16 10:47:34,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:47:34,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-16 10:47:34,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909624407] [2020-10-16 10:47:34,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-16 10:47:34,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:47:34,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-16 10:47:34,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2020-10-16 10:47:34,646 INFO L87 Difference]: Start difference. First operand 341 states and 736 transitions. Second operand 22 states. [2020-10-16 10:47:36,691 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-10-16 10:47:38,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:47:38,430 INFO L93 Difference]: Finished difference Result 544 states and 1156 transitions. [2020-10-16 10:47:38,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-16 10:47:38,431 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 37 [2020-10-16 10:47:38,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:47:38,435 INFO L225 Difference]: With dead ends: 544 [2020-10-16 10:47:38,435 INFO L226 Difference]: Without dead ends: 534 [2020-10-16 10:47:38,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=235, Invalid=1657, Unknown=0, NotChecked=0, Total=1892 [2020-10-16 10:47:38,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2020-10-16 10:47:38,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 451. [2020-10-16 10:47:38,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2020-10-16 10:47:38,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 961 transitions. [2020-10-16 10:47:38,446 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 961 transitions. Word has length 37 [2020-10-16 10:47:38,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:47:38,446 INFO L481 AbstractCegarLoop]: Abstraction has 451 states and 961 transitions. [2020-10-16 10:47:38,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-16 10:47:38,446 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 961 transitions. [2020-10-16 10:47:38,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-16 10:47:38,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:47:38,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:47:38,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-16 10:47:38,448 INFO L429 AbstractCegarLoop]: === Iteration 16 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:47:38,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:47:38,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1819898745, now seen corresponding path program 2 times [2020-10-16 10:47:38,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:47:38,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307245136] [2020-10-16 10:47:38,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:47:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:47:40,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:47:40,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307245136] [2020-10-16 10:47:40,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:47:40,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-16 10:47:40,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285599241] [2020-10-16 10:47:40,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-16 10:47:40,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:47:40,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-16 10:47:40,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2020-10-16 10:47:40,274 INFO L87 Difference]: Start difference. First operand 451 states and 961 transitions. Second operand 22 states. [2020-10-16 10:47:41,218 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 39 [2020-10-16 10:47:44,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:47:44,102 INFO L93 Difference]: Finished difference Result 668 states and 1420 transitions. [2020-10-16 10:47:44,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-16 10:47:44,103 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 37 [2020-10-16 10:47:44,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:47:44,107 INFO L225 Difference]: With dead ends: 668 [2020-10-16 10:47:44,107 INFO L226 Difference]: Without dead ends: 658 [2020-10-16 10:47:44,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=259, Invalid=1721, Unknown=0, NotChecked=0, Total=1980 [2020-10-16 10:47:44,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-10-16 10:47:44,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 451. [2020-10-16 10:47:44,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2020-10-16 10:47:44,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 961 transitions. [2020-10-16 10:47:44,117 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 961 transitions. Word has length 37 [2020-10-16 10:47:44,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:47:44,118 INFO L481 AbstractCegarLoop]: Abstraction has 451 states and 961 transitions. [2020-10-16 10:47:44,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-16 10:47:44,118 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 961 transitions. [2020-10-16 10:47:44,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-16 10:47:44,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:47:44,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:47:44,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-16 10:47:44,120 INFO L429 AbstractCegarLoop]: === Iteration 17 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:47:44,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:47:44,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1917925305, now seen corresponding path program 3 times [2020-10-16 10:47:44,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:47:44,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426323359] [2020-10-16 10:47:44,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:47:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:47:44,471 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 30 [2020-10-16 10:47:45,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:47:45,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426323359] [2020-10-16 10:47:45,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:47:45,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-16 10:47:45,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223240142] [2020-10-16 10:47:45,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-16 10:47:45,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:47:45,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-16 10:47:45,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2020-10-16 10:47:45,907 INFO L87 Difference]: Start difference. First operand 451 states and 961 transitions. Second operand 22 states. [2020-10-16 10:47:49,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:47:49,895 INFO L93 Difference]: Finished difference Result 634 states and 1349 transitions. [2020-10-16 10:47:49,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-16 10:47:49,896 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 37 [2020-10-16 10:47:49,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:47:49,901 INFO L225 Difference]: With dead ends: 634 [2020-10-16 10:47:49,901 INFO L226 Difference]: Without dead ends: 624 [2020-10-16 10:47:49,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=241, Invalid=1651, Unknown=0, NotChecked=0, Total=1892 [2020-10-16 10:47:49,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-10-16 10:47:49,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 451. [2020-10-16 10:47:49,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2020-10-16 10:47:49,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 961 transitions. [2020-10-16 10:47:49,916 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 961 transitions. Word has length 37 [2020-10-16 10:47:49,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:47:49,916 INFO L481 AbstractCegarLoop]: Abstraction has 451 states and 961 transitions. [2020-10-16 10:47:49,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-16 10:47:49,916 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 961 transitions. [2020-10-16 10:47:49,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-16 10:47:49,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:47:49,918 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:47:49,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-16 10:47:49,918 INFO L429 AbstractCegarLoop]: === Iteration 18 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:47:49,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:47:49,919 INFO L82 PathProgramCache]: Analyzing trace with hash -157578143, now seen corresponding path program 4 times [2020-10-16 10:47:49,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:47:49,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666564608] [2020-10-16 10:47:49,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:47:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:47:50,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:47:50,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666564608] [2020-10-16 10:47:50,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:47:50,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-16 10:47:50,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681730800] [2020-10-16 10:47:50,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-16 10:47:50,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:47:50,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-16 10:47:50,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2020-10-16 10:47:50,826 INFO L87 Difference]: Start difference. First operand 451 states and 961 transitions. Second operand 18 states. [2020-10-16 10:47:52,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:47:52,182 INFO L93 Difference]: Finished difference Result 600 states and 1285 transitions. [2020-10-16 10:47:52,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-16 10:47:52,183 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 37 [2020-10-16 10:47:52,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:47:52,186 INFO L225 Difference]: With dead ends: 600 [2020-10-16 10:47:52,186 INFO L226 Difference]: Without dead ends: 587 [2020-10-16 10:47:52,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=165, Invalid=537, Unknown=0, NotChecked=0, Total=702 [2020-10-16 10:47:52,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2020-10-16 10:47:52,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 455. [2020-10-16 10:47:52,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-10-16 10:47:52,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 991 transitions. [2020-10-16 10:47:52,194 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 991 transitions. Word has length 37 [2020-10-16 10:47:52,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:47:52,195 INFO L481 AbstractCegarLoop]: Abstraction has 455 states and 991 transitions. [2020-10-16 10:47:52,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-16 10:47:52,195 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 991 transitions. [2020-10-16 10:47:52,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-16 10:47:52,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:47:52,196 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:47:52,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-16 10:47:52,197 INFO L429 AbstractCegarLoop]: === Iteration 19 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:47:52,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:47:52,197 INFO L82 PathProgramCache]: Analyzing trace with hash 2126544081, now seen corresponding path program 1 times [2020-10-16 10:47:52,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:47:52,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797281014] [2020-10-16 10:47:52,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:47:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:47:52,710 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 34 [2020-10-16 10:47:52,880 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 29 [2020-10-16 10:47:53,059 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 31 [2020-10-16 10:47:53,260 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 34 [2020-10-16 10:47:53,891 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 38 [2020-10-16 10:47:54,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:47:54,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797281014] [2020-10-16 10:47:54,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:47:54,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-16 10:47:54,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646287704] [2020-10-16 10:47:54,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-16 10:47:54,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:47:54,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-16 10:47:54,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2020-10-16 10:47:54,584 INFO L87 Difference]: Start difference. First operand 455 states and 991 transitions. Second operand 21 states. [2020-10-16 10:47:57,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:47:57,878 INFO L93 Difference]: Finished difference Result 639 states and 1368 transitions. [2020-10-16 10:47:57,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-16 10:47:57,879 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 38 [2020-10-16 10:47:57,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:47:57,882 INFO L225 Difference]: With dead ends: 639 [2020-10-16 10:47:57,882 INFO L226 Difference]: Without dead ends: 599 [2020-10-16 10:47:57,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=165, Invalid=1095, Unknown=0, NotChecked=0, Total=1260 [2020-10-16 10:47:57,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-10-16 10:47:57,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 538. [2020-10-16 10:47:57,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-10-16 10:47:57,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1149 transitions. [2020-10-16 10:47:57,893 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1149 transitions. Word has length 38 [2020-10-16 10:47:57,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:47:57,893 INFO L481 AbstractCegarLoop]: Abstraction has 538 states and 1149 transitions. [2020-10-16 10:47:57,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-16 10:47:57,894 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1149 transitions. [2020-10-16 10:47:57,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-16 10:47:57,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:47:57,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:47:57,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-16 10:47:57,895 INFO L429 AbstractCegarLoop]: === Iteration 20 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:47:57,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:47:57,896 INFO L82 PathProgramCache]: Analyzing trace with hash 584043011, now seen corresponding path program 2 times [2020-10-16 10:47:57,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:47:57,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702814568] [2020-10-16 10:47:57,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:47:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:47:58,268 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 34 [2020-10-16 10:47:59,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:47:59,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702814568] [2020-10-16 10:47:59,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:47:59,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-16 10:47:59,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202968103] [2020-10-16 10:47:59,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-16 10:47:59,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:47:59,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-16 10:47:59,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2020-10-16 10:47:59,620 INFO L87 Difference]: Start difference. First operand 538 states and 1149 transitions. Second operand 21 states. [2020-10-16 10:48:02,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:02,504 INFO L93 Difference]: Finished difference Result 772 states and 1640 transitions. [2020-10-16 10:48:02,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-16 10:48:02,505 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 38 [2020-10-16 10:48:02,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:02,508 INFO L225 Difference]: With dead ends: 772 [2020-10-16 10:48:02,508 INFO L226 Difference]: Without dead ends: 732 [2020-10-16 10:48:02,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=157, Invalid=1033, Unknown=0, NotChecked=0, Total=1190 [2020-10-16 10:48:02,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2020-10-16 10:48:02,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 541. [2020-10-16 10:48:02,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2020-10-16 10:48:02,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 1156 transitions. [2020-10-16 10:48:02,518 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 1156 transitions. Word has length 38 [2020-10-16 10:48:02,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:02,519 INFO L481 AbstractCegarLoop]: Abstraction has 541 states and 1156 transitions. [2020-10-16 10:48:02,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-16 10:48:02,519 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 1156 transitions. [2020-10-16 10:48:02,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-16 10:48:02,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:02,520 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:02,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-16 10:48:02,521 INFO L429 AbstractCegarLoop]: === Iteration 21 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:48:02,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:02,521 INFO L82 PathProgramCache]: Analyzing trace with hash -672100925, now seen corresponding path program 3 times [2020-10-16 10:48:02,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:02,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645527117] [2020-10-16 10:48:02,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:02,891 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 34 [2020-10-16 10:48:04,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:04,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645527117] [2020-10-16 10:48:04,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:04,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-16 10:48:04,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487678073] [2020-10-16 10:48:04,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-16 10:48:04,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:04,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-16 10:48:04,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2020-10-16 10:48:04,239 INFO L87 Difference]: Start difference. First operand 541 states and 1156 transitions. Second operand 21 states. [2020-10-16 10:48:05,865 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2020-10-16 10:48:07,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:07,551 INFO L93 Difference]: Finished difference Result 757 states and 1612 transitions. [2020-10-16 10:48:07,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-16 10:48:07,553 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 38 [2020-10-16 10:48:07,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:07,556 INFO L225 Difference]: With dead ends: 757 [2020-10-16 10:48:07,556 INFO L226 Difference]: Without dead ends: 717 [2020-10-16 10:48:07,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=164, Invalid=1096, Unknown=0, NotChecked=0, Total=1260 [2020-10-16 10:48:07,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2020-10-16 10:48:07,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 550. [2020-10-16 10:48:07,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-10-16 10:48:07,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 1177 transitions. [2020-10-16 10:48:07,567 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 1177 transitions. Word has length 38 [2020-10-16 10:48:07,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:07,567 INFO L481 AbstractCegarLoop]: Abstraction has 550 states and 1177 transitions. [2020-10-16 10:48:07,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-16 10:48:07,568 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 1177 transitions. [2020-10-16 10:48:07,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-16 10:48:07,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:07,569 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:07,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-16 10:48:07,569 INFO L429 AbstractCegarLoop]: === Iteration 22 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:48:07,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:07,570 INFO L82 PathProgramCache]: Analyzing trace with hash -588198373, now seen corresponding path program 4 times [2020-10-16 10:48:07,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:07,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446575760] [2020-10-16 10:48:07,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:07,926 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 35 [2020-10-16 10:48:08,044 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 27 [2020-10-16 10:48:09,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:09,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446575760] [2020-10-16 10:48:09,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:09,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-16 10:48:09,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311191983] [2020-10-16 10:48:09,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-16 10:48:09,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:09,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-16 10:48:09,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2020-10-16 10:48:09,291 INFO L87 Difference]: Start difference. First operand 550 states and 1177 transitions. Second operand 21 states. [2020-10-16 10:48:10,926 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2020-10-16 10:48:11,411 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2020-10-16 10:48:13,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:13,487 INFO L93 Difference]: Finished difference Result 956 states and 2045 transitions. [2020-10-16 10:48:13,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-16 10:48:13,488 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 38 [2020-10-16 10:48:13,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:13,493 INFO L225 Difference]: With dead ends: 956 [2020-10-16 10:48:13,494 INFO L226 Difference]: Without dead ends: 916 [2020-10-16 10:48:13,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=185, Invalid=1297, Unknown=0, NotChecked=0, Total=1482 [2020-10-16 10:48:13,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2020-10-16 10:48:13,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 589. [2020-10-16 10:48:13,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-16 10:48:13,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 1271 transitions. [2020-10-16 10:48:13,507 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 1271 transitions. Word has length 38 [2020-10-16 10:48:13,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:13,507 INFO L481 AbstractCegarLoop]: Abstraction has 589 states and 1271 transitions. [2020-10-16 10:48:13,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-16 10:48:13,507 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 1271 transitions. [2020-10-16 10:48:13,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-16 10:48:13,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:13,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:13,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-16 10:48:13,509 INFO L429 AbstractCegarLoop]: === Iteration 23 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:48:13,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:13,509 INFO L82 PathProgramCache]: Analyzing trace with hash 297208907, now seen corresponding path program 5 times [2020-10-16 10:48:13,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:13,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168395489] [2020-10-16 10:48:13,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:13,994 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 34 [2020-10-16 10:48:14,156 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 29 [2020-10-16 10:48:14,336 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 32 [2020-10-16 10:48:15,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:15,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168395489] [2020-10-16 10:48:15,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:15,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-16 10:48:15,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402032075] [2020-10-16 10:48:15,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-16 10:48:15,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:15,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-16 10:48:15,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2020-10-16 10:48:15,556 INFO L87 Difference]: Start difference. First operand 589 states and 1271 transitions. Second operand 21 states. [2020-10-16 10:48:18,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:18,870 INFO L93 Difference]: Finished difference Result 763 states and 1633 transitions. [2020-10-16 10:48:18,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-16 10:48:18,871 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 38 [2020-10-16 10:48:18,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:18,875 INFO L225 Difference]: With dead ends: 763 [2020-10-16 10:48:18,875 INFO L226 Difference]: Without dead ends: 723 [2020-10-16 10:48:18,876 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=165, Invalid=1095, Unknown=0, NotChecked=0, Total=1260 [2020-10-16 10:48:18,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2020-10-16 10:48:18,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 589. [2020-10-16 10:48:18,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-16 10:48:18,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 1271 transitions. [2020-10-16 10:48:18,886 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 1271 transitions. Word has length 38 [2020-10-16 10:48:18,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:18,887 INFO L481 AbstractCegarLoop]: Abstraction has 589 states and 1271 transitions. [2020-10-16 10:48:18,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-16 10:48:18,887 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 1271 transitions. [2020-10-16 10:48:18,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-16 10:48:18,888 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:18,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:18,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-16 10:48:18,889 INFO L429 AbstractCegarLoop]: === Iteration 24 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:48:18,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:18,889 INFO L82 PathProgramCache]: Analyzing trace with hash 2038336537, now seen corresponding path program 6 times [2020-10-16 10:48:18,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:18,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467223109] [2020-10-16 10:48:18,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:19,297 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 34 [2020-10-16 10:48:19,449 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 35 [2020-10-16 10:48:20,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:20,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467223109] [2020-10-16 10:48:20,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:20,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-16 10:48:20,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611305064] [2020-10-16 10:48:20,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-16 10:48:20,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:20,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-16 10:48:20,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2020-10-16 10:48:20,807 INFO L87 Difference]: Start difference. First operand 589 states and 1271 transitions. Second operand 21 states. [2020-10-16 10:48:24,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:24,118 INFO L93 Difference]: Finished difference Result 773 states and 1648 transitions. [2020-10-16 10:48:24,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-16 10:48:24,119 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 38 [2020-10-16 10:48:24,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:24,123 INFO L225 Difference]: With dead ends: 773 [2020-10-16 10:48:24,123 INFO L226 Difference]: Without dead ends: 733 [2020-10-16 10:48:24,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=163, Invalid=1097, Unknown=0, NotChecked=0, Total=1260 [2020-10-16 10:48:24,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2020-10-16 10:48:24,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 591. [2020-10-16 10:48:24,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-10-16 10:48:24,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1274 transitions. [2020-10-16 10:48:24,134 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1274 transitions. Word has length 38 [2020-10-16 10:48:24,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:24,134 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 1274 transitions. [2020-10-16 10:48:24,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-16 10:48:24,134 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1274 transitions. [2020-10-16 10:48:24,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-16 10:48:24,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:24,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:24,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-16 10:48:24,136 INFO L429 AbstractCegarLoop]: === Iteration 25 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:48:24,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:24,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1334893073, now seen corresponding path program 7 times [2020-10-16 10:48:24,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:24,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955926329] [2020-10-16 10:48:24,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:24,581 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 35 [2020-10-16 10:48:24,699 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 31 [2020-10-16 10:48:25,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:25,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955926329] [2020-10-16 10:48:25,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:25,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-16 10:48:25,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884106599] [2020-10-16 10:48:25,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-16 10:48:25,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:25,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-16 10:48:25,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2020-10-16 10:48:25,968 INFO L87 Difference]: Start difference. First operand 591 states and 1274 transitions. Second operand 21 states. [2020-10-16 10:48:29,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:29,258 INFO L93 Difference]: Finished difference Result 777 states and 1654 transitions. [2020-10-16 10:48:29,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-16 10:48:29,259 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 38 [2020-10-16 10:48:29,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:29,261 INFO L225 Difference]: With dead ends: 777 [2020-10-16 10:48:29,261 INFO L226 Difference]: Without dead ends: 737 [2020-10-16 10:48:29,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=167, Invalid=1093, Unknown=0, NotChecked=0, Total=1260 [2020-10-16 10:48:29,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2020-10-16 10:48:29,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 593. [2020-10-16 10:48:29,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-16 10:48:29,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1277 transitions. [2020-10-16 10:48:29,271 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1277 transitions. Word has length 38 [2020-10-16 10:48:29,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:29,272 INFO L481 AbstractCegarLoop]: Abstraction has 593 states and 1277 transitions. [2020-10-16 10:48:29,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-16 10:48:29,272 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1277 transitions. [2020-10-16 10:48:29,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-16 10:48:29,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:29,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:29,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-16 10:48:29,273 INFO L429 AbstractCegarLoop]: === Iteration 26 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:48:29,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:29,273 INFO L82 PathProgramCache]: Analyzing trace with hash -95861579, now seen corresponding path program 8 times [2020-10-16 10:48:29,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:29,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005347389] [2020-10-16 10:48:29,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:29,766 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 40 [2020-10-16 10:48:29,931 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 33 [2020-10-16 10:48:30,110 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 36 [2020-10-16 10:48:30,667 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 38 [2020-10-16 10:48:31,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:31,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005347389] [2020-10-16 10:48:31,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:31,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-16 10:48:31,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181314093] [2020-10-16 10:48:31,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-16 10:48:31,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:31,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-16 10:48:31,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2020-10-16 10:48:31,478 INFO L87 Difference]: Start difference. First operand 593 states and 1277 transitions. Second operand 20 states. [2020-10-16 10:48:35,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:35,266 INFO L93 Difference]: Finished difference Result 1107 states and 2388 transitions. [2020-10-16 10:48:35,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-16 10:48:35,268 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 38 [2020-10-16 10:48:35,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:35,271 INFO L225 Difference]: With dead ends: 1107 [2020-10-16 10:48:35,271 INFO L226 Difference]: Without dead ends: 1067 [2020-10-16 10:48:35,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=244, Invalid=1562, Unknown=0, NotChecked=0, Total=1806 [2020-10-16 10:48:35,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2020-10-16 10:48:35,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 602. [2020-10-16 10:48:35,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2020-10-16 10:48:35,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1300 transitions. [2020-10-16 10:48:35,284 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1300 transitions. Word has length 38 [2020-10-16 10:48:35,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:35,285 INFO L481 AbstractCegarLoop]: Abstraction has 602 states and 1300 transitions. [2020-10-16 10:48:35,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-16 10:48:35,285 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1300 transitions. [2020-10-16 10:48:35,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-16 10:48:35,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:35,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:35,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-16 10:48:35,287 INFO L429 AbstractCegarLoop]: === Iteration 27 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:48:35,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:35,287 INFO L82 PathProgramCache]: Analyzing trace with hash -930265675, now seen corresponding path program 9 times [2020-10-16 10:48:35,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:35,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466042593] [2020-10-16 10:48:35,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:38,050 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 33 [2020-10-16 10:48:38,382 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 40 [2020-10-16 10:48:38,899 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 57 [2020-10-16 10:48:39,435 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 54 [2020-10-16 10:48:40,591 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 56 [2020-10-16 10:48:42,115 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2020-10-16 10:48:43,318 WARN L193 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2020-10-16 10:48:44,562 WARN L193 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2020-10-16 10:48:45,815 WARN L193 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2020-10-16 10:48:48,532 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 92 DAG size of output: 69 [2020-10-16 10:48:50,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:50,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466042593] [2020-10-16 10:48:50,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:50,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-16 10:48:50,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564664317] [2020-10-16 10:48:50,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-16 10:48:50,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:50,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-16 10:48:50,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2020-10-16 10:48:50,376 INFO L87 Difference]: Start difference. First operand 602 states and 1300 transitions. Second operand 21 states. [2020-10-16 10:48:51,885 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-16 10:48:58,143 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2020-10-16 10:49:06,551 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-16 10:49:10,515 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 119 DAG size of output: 87 [2020-10-16 10:49:14,808 WARN L193 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 129 DAG size of output: 91 [2020-10-16 10:49:21,183 WARN L193 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2020-10-16 10:49:32,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:49:32,254 INFO L93 Difference]: Finished difference Result 901 states and 1917 transitions. [2020-10-16 10:49:32,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-16 10:49:32,256 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 38 [2020-10-16 10:49:32,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:49:32,258 INFO L225 Difference]: With dead ends: 901 [2020-10-16 10:49:32,258 INFO L226 Difference]: Without dead ends: 861 [2020-10-16 10:49:32,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=172, Invalid=1160, Unknown=0, NotChecked=0, Total=1332 [2020-10-16 10:49:32,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2020-10-16 10:49:32,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 599. [2020-10-16 10:49:32,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2020-10-16 10:49:32,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1293 transitions. [2020-10-16 10:49:32,269 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1293 transitions. Word has length 38 [2020-10-16 10:49:32,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:49:32,269 INFO L481 AbstractCegarLoop]: Abstraction has 599 states and 1293 transitions. [2020-10-16 10:49:32,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-16 10:49:32,269 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1293 transitions. [2020-10-16 10:49:32,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-16 10:49:32,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:49:32,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:49:32,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-16 10:49:32,271 INFO L429 AbstractCegarLoop]: === Iteration 28 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:49:32,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:49:32,271 INFO L82 PathProgramCache]: Analyzing trace with hash 390432681, now seen corresponding path program 10 times [2020-10-16 10:49:32,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:49:32,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599246858] [2020-10-16 10:49:32,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:49:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:49:32,674 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2020-10-16 10:49:32,809 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2020-10-16 10:49:32,957 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 35 [2020-10-16 10:49:33,643 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 39 [2020-10-16 10:49:33,802 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 32 [2020-10-16 10:49:34,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:49:34,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599246858] [2020-10-16 10:49:34,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:49:34,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-16 10:49:34,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116356136] [2020-10-16 10:49:34,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-16 10:49:34,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:49:34,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-16 10:49:34,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2020-10-16 10:49:34,625 INFO L87 Difference]: Start difference. First operand 599 states and 1293 transitions. Second operand 20 states. [2020-10-16 10:49:35,226 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2020-10-16 10:49:35,827 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2020-10-16 10:49:36,177 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2020-10-16 10:49:36,540 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2020-10-16 10:49:37,078 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2020-10-16 10:49:37,224 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2020-10-16 10:49:37,578 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2020-10-16 10:49:37,765 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2020-10-16 10:49:38,286 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 56 [2020-10-16 10:49:39,537 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2020-10-16 10:49:39,942 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-10-16 10:49:40,275 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-10-16 10:49:41,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:49:41,302 INFO L93 Difference]: Finished difference Result 1083 states and 2335 transitions. [2020-10-16 10:49:41,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-16 10:49:41,305 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 38 [2020-10-16 10:49:41,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:49:41,307 INFO L225 Difference]: With dead ends: 1083 [2020-10-16 10:49:41,308 INFO L226 Difference]: Without dead ends: 1043 [2020-10-16 10:49:41,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=290, Invalid=1872, Unknown=0, NotChecked=0, Total=2162 [2020-10-16 10:49:41,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2020-10-16 10:49:41,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 593. [2020-10-16 10:49:41,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-16 10:49:41,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1279 transitions. [2020-10-16 10:49:41,318 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1279 transitions. Word has length 38 [2020-10-16 10:49:41,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:49:41,319 INFO L481 AbstractCegarLoop]: Abstraction has 593 states and 1279 transitions. [2020-10-16 10:49:41,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-16 10:49:41,319 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1279 transitions. [2020-10-16 10:49:41,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-16 10:49:41,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:49:41,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:49:41,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-16 10:49:41,321 INFO L429 AbstractCegarLoop]: === Iteration 29 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:49:41,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:49:41,321 INFO L82 PathProgramCache]: Analyzing trace with hash 395216257, now seen corresponding path program 11 times [2020-10-16 10:49:41,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:49:41,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208644152] [2020-10-16 10:49:41,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:49:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2020-10-16 10:50:51,294 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 10:50:51,297 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 10:50:51,299 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 10:50:51,301 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 10:50:51,302 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 10:50:51,303 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 10:50:51,304 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 10:50:51,306 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 10:50:51,307 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 10:50:51,308 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 10:50:51,308 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 10:50:51,309 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 10:50:51,309 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 10:50:51,310 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 10:50:51,310 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 10:50:51,312 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 10:50:51,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-16 10:50:51,316 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-16 10:50:51,325 WARN L235 ceAbstractionStarter]: Timeout [2020-10-16 10:50:51,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 10:50:51 BasicIcfg [2020-10-16 10:50:51,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 10:50:51,327 INFO L168 Benchmark]: Toolchain (without parser) took 250655.79 ms. Allocated memory was 139.5 MB in the beginning and 2.7 GB in the end (delta: 2.6 GB). Free memory was 100.9 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2020-10-16 10:50:51,327 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-16 10:50:51,328 INFO L168 Benchmark]: CACSL2BoogieTranslator took 927.49 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.5 MB in the beginning and 133.9 MB in the end (delta: -33.4 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. [2020-10-16 10:50:51,328 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.31 ms. Allocated memory is still 202.9 MB. Free memory was 133.9 MB in the beginning and 130.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-10-16 10:50:51,332 INFO L168 Benchmark]: Boogie Preprocessor took 63.36 ms. Allocated memory is still 202.9 MB. Free memory was 130.0 MB in the beginning and 128.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 10:50:51,332 INFO L168 Benchmark]: RCFGBuilder took 710.14 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 128.1 MB in the beginning and 197.5 MB in the end (delta: -69.4 MB). Peak memory consumption was 45.6 MB. Max. memory is 7.1 GB. [2020-10-16 10:50:51,333 INFO L168 Benchmark]: TraceAbstraction took 248875.84 ms. Allocated memory was 235.9 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 197.5 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2020-10-16 10:50:51,336 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 927.49 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.5 MB in the beginning and 133.9 MB in the end (delta: -33.4 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 73.31 ms. Allocated memory is still 202.9 MB. Free memory was 133.9 MB in the beginning and 130.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.36 ms. Allocated memory is still 202.9 MB. Free memory was 130.0 MB in the beginning and 128.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 710.14 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 128.1 MB in the beginning and 197.5 MB in the end (delta: -69.4 MB). Peak memory consumption was 45.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 248875.84 ms. Allocated memory was 235.9 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 197.5 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 10047 VarBasedMoverChecksPositive, 218 VarBasedMoverChecksNegative, 37 SemBasedMoverChecksPositive, 181 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.1s, 725 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 10.1s, 234 PlacesBefore, 66 PlacesAfterwards, 244 TransitionsBefore, 72 TransitionsAfterwards, 14896 CoEnabledTransitionPairs, 9 FixpointIterations, 63 TrivialSequentialCompositions, 115 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 24 ConcurrentYvCompositions, 4 ChoiceCompositions, 207 TotalNumberOfCompositions, 39936 MoverChecksTotal - TimeoutResultAtElement [Line: 1040]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1040). Cancelled while BasicCegarLoop was analyzing trace of length 39 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 37 interpolants. - TimeoutResultAtElement [Line: 1013]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1013). Cancelled while BasicCegarLoop was analyzing trace of length 39 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 37 interpolants. - TimeoutResultAtElement [Line: 1024]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1024). Cancelled while BasicCegarLoop was analyzing trace of length 39 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 37 interpolants. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 228 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 248.6s, OverallIterations: 29, TraceHistogramMax: 1, AutomataDifference: 115.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.1s, HoareTripleCheckerStatistics: 1689 SDtfs, 2968 SDslu, 8844 SDs, 0 SdLazy, 24555 SolverSat, 702 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 58.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 713 GetRequests, 41 SyntacticMatches, 41 SemanticMatches, 631 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 84.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1165occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 28 MinimizatonAttempts, 3422 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 51.1s InterpolantComputationTime, 754 NumberOfCodeBlocks, 754 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 726 ConstructedInterpolants, 0 QuantifiedInterpolants, 1471048 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 28 InterpolantComputations, 28 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown