/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 23:07:31,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 23:07:31,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 23:07:31,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 23:07:31,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 23:07:31,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 23:07:31,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 23:07:31,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 23:07:31,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 23:07:31,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 23:07:31,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 23:07:31,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 23:07:31,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 23:07:31,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 23:07:31,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 23:07:31,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 23:07:31,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 23:07:31,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 23:07:31,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 23:07:31,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 23:07:31,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 23:07:31,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 23:07:31,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 23:07:31,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 23:07:31,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 23:07:31,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 23:07:31,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 23:07:31,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 23:07:31,768 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 23:07:31,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 23:07:31,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 23:07:31,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 23:07:31,772 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 23:07:31,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 23:07:31,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 23:07:31,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 23:07:31,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 23:07:31,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 23:07:31,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 23:07:31,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 23:07:31,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 23:07:31,787 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 [2020-10-27 23:07:31,833 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 23:07:31,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 23:07:31,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 23:07:31,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 23:07:31,839 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 23:07:31,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 23:07:31,840 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 23:07:31,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 23:07:31,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 23:07:31,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 23:07:31,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 23:07:31,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 23:07:31,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 23:07:31,842 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 23:07:31,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 23:07:31,842 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 23:07:31,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 23:07:31,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 23:07:31,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 23:07:31,843 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 23:07:31,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 23:07:31,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:07:31,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 23:07:31,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 23:07:31,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 23:07:31,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 23:07:31,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 23:07:31,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 23:07:31,845 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 23:07:31,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 23:07:32,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 23:07:32,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 23:07:32,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 23:07:32,368 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 23:07:32,368 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 23:07:32,370 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c [2020-10-27 23:07:32,467 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6707c4a62/2978f237f51343f0ad64d2d4eae85aed/FLAG8779a348a [2020-10-27 23:07:33,140 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 23:07:33,141 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c [2020-10-27 23:07:33,154 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6707c4a62/2978f237f51343f0ad64d2d4eae85aed/FLAG8779a348a [2020-10-27 23:07:33,453 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6707c4a62/2978f237f51343f0ad64d2d4eae85aed [2020-10-27 23:07:33,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 23:07:33,463 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 23:07:33,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 23:07:33,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 23:07:33,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 23:07:33,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:07:33" (1/1) ... [2020-10-27 23:07:33,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4623ecad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:33, skipping insertion in model container [2020-10-27 23:07:33,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:07:33" (1/1) ... [2020-10-27 23:07:33,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 23:07:33,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 23:07:33,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:07:33,895 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 23:07:34,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:07:34,051 INFO L208 MainTranslator]: Completed translation [2020-10-27 23:07:34,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:34 WrapperNode [2020-10-27 23:07:34,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 23:07:34,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 23:07:34,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 23:07:34,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 23:07:34,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:34" (1/1) ... [2020-10-27 23:07:34,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:34" (1/1) ... [2020-10-27 23:07:34,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:34" (1/1) ... [2020-10-27 23:07:34,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:34" (1/1) ... [2020-10-27 23:07:34,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:34" (1/1) ... [2020-10-27 23:07:34,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:34" (1/1) ... [2020-10-27 23:07:34,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:34" (1/1) ... [2020-10-27 23:07:34,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 23:07:34,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 23:07:34,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 23:07:34,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 23:07:34,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:34" (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 [2020-10-27 23:07:34,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 23:07:34,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 23:07:34,249 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 23:07:34,249 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 23:07:34,250 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 23:07:34,250 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 23:07:34,250 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 23:07:34,251 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 23:07:34,251 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-27 23:07:34,251 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-27 23:07:34,252 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 23:07:34,253 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 23:07:34,253 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 23:07:34,253 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 23:07:34,254 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 23:07:34,255 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 23:07:34,255 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 23:07:34,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 23:07:34,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 23:07:34,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 23:07:34,256 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 23:07:34,256 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 23:07:34,256 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 23:07:34,256 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 23:07:34,256 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 23:07:34,256 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 23:07:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 23:07:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 23:07:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-27 23:07:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-27 23:07:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 23:07:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 23:07:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 23:07:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 23:07:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 23:07:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 23:07:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 23:07:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 23:07:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 23:07:35,486 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 23:07:35,487 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 23:07:35,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:07:35 BoogieIcfgContainer [2020-10-27 23:07:35,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 23:07:35,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 23:07:35,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 23:07:35,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 23:07:35,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:07:33" (1/3) ... [2020-10-27 23:07:35,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2775a913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:07:35, skipping insertion in model container [2020-10-27 23:07:35,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:34" (2/3) ... [2020-10-27 23:07:35,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2775a913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:07:35, skipping insertion in model container [2020-10-27 23:07:35,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:07:35" (3/3) ... [2020-10-27 23:07:35,499 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c [2020-10-27 23:07:35,512 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 23:07:35,518 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 23:07:35,533 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 23:07:35,561 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 23:07:35,561 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 23:07:35,562 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 23:07:35,562 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 23:07:35,562 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 23:07:35,562 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 23:07:35,562 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 23:07:35,562 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 23:07:35,587 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states. [2020-10-27 23:07:35,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-27 23:07:35,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:07:35,602 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, 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] [2020-10-27 23:07:35,602 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:07:35,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:07:35,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1830644056, now seen corresponding path program 1 times [2020-10-27 23:07:35,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:07:35,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833556490] [2020-10-27 23:07:35,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:07:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:36,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:36,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:36,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:07:36,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:36,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 542 [2020-10-27 23:07:36,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:36,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:36,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 23:07:36,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:36,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:07:36,874 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:07:36,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:07:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:36,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:36,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:36,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:07:36,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:36,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 23:07:36,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:36,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:36,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:36,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:36,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:36,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:07:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:36,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:36,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:36,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:36,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:36,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:36,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:36,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:36,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:36,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:36,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:07:37,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 23:07:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:37,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:37,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:37,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:07:37,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:37,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:07:37,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:37,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:37,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:07:37,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:37,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:07:37,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 23:07:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:37,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:37,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:37,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:37,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:37,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 23:07:37,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:37,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 23:07:37,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 23:07:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:37,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:37,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:37,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:37,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:37,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:07:37,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:37,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:37,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:37,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:37,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:07:37,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 23:07:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:37,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:37,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:37,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:37,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:37,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:07:37,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:37,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:37,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:37,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:37,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:37,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:07:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:37,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:37,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:37,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:37,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:37,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:07:37,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:37,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:37,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:37,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:37,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:37,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 23:07:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:37,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:37,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:37,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:37,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:37,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:07:37,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:37,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:37,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:37,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:37,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:37,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 23:07:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:37,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:37,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:37,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:37,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:37,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:07:37,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:37,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:37,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:37,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:37,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 29 [2020-10-27 23:07:37,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 23:07:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:37,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:37,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:37,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:37,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:37,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:07:37,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:37,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:37,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:07:37,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:37,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:37,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:07:37,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833556490] [2020-10-27 23:07:37,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:07:37,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 23:07:37,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419547924] [2020-10-27 23:07:37,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 23:07:37,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:07:37,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 23:07:37,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 23:07:37,532 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 9 states. [2020-10-27 23:07:39,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:07:39,548 INFO L93 Difference]: Finished difference Result 325 states and 487 transitions. [2020-10-27 23:07:39,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 23:07:39,550 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2020-10-27 23:07:39,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:07:39,575 INFO L225 Difference]: With dead ends: 325 [2020-10-27 23:07:39,576 INFO L226 Difference]: Without dead ends: 187 [2020-10-27 23:07:39,584 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-27 23:07:39,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-10-27 23:07:39,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 181. [2020-10-27 23:07:39,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-27 23:07:39,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 279 transitions. [2020-10-27 23:07:39,672 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 279 transitions. Word has length 75 [2020-10-27 23:07:39,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:07:39,672 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 279 transitions. [2020-10-27 23:07:39,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 23:07:39,672 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 279 transitions. [2020-10-27 23:07:39,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-27 23:07:39,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:07:39,677 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, 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] [2020-10-27 23:07:39,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 23:07:39,677 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:07:39,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:07:39,678 INFO L82 PathProgramCache]: Analyzing trace with hash 2032467990, now seen corresponding path program 1 times [2020-10-27 23:07:39,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:07:39,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43049159] [2020-10-27 23:07:39,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:07:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:39,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:40,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:40,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:07:40,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:40,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 795 [2020-10-27 23:07:40,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:40,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:07:40,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 23:07:40,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:07:40,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:40,892 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:07:40,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:07:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:40,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:40,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:40,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:07:40,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:40,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 23:07:40,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:40,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:40,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:40,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:40,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:07:40,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:07:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:40,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:40,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:40,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:40,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:40,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:07:40,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:40,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:40,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:40,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:07:40,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:41,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 23:07:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:41,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:41,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:41,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:07:41,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:41,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:41,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:41,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:41,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 23:07:41,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:07:41,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:41,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 23:07:41,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:41,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:41,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:41,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:41,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:41,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:07:41,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:41,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:41,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:41,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:41,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:41,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 23:07:41,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:41,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:41,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:41,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:41,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:41,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:41,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:41,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:41,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:41,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:41,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:41,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 23:07:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:41,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:41,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:41,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:41,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:41,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:07:41,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:41,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:41,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:41,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:41,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:41,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:07:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:41,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:41,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:41,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:41,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:41,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:07:41,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:41,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:41,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:41,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:41,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:41,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 23:07:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:41,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:41,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:41,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:41,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:41,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:07:41,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:41,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:41,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:41,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:41,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:41,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 23:07:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:41,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:41,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:41,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:41,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:41,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:07:41,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:41,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:41,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:41,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:41,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 23:07:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:41,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:41,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:41,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:41,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:41,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:07:41,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:41,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:41,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:07:41,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:41,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:41,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:07:41,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [43049159] [2020-10-27 23:07:41,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:07:41,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 23:07:41,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502585052] [2020-10-27 23:07:41,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 23:07:41,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:07:41,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 23:07:41,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-27 23:07:41,360 INFO L87 Difference]: Start difference. First operand 181 states and 279 transitions. Second operand 15 states. [2020-10-27 23:07:41,739 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:07:42,089 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-27 23:07:42,573 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-27 23:07:42,961 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-27 23:07:46,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:07:46,169 INFO L93 Difference]: Finished difference Result 327 states and 491 transitions. [2020-10-27 23:07:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 23:07:46,170 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 75 [2020-10-27 23:07:46,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:07:46,176 INFO L225 Difference]: With dead ends: 327 [2020-10-27 23:07:46,176 INFO L226 Difference]: Without dead ends: 199 [2020-10-27 23:07:46,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2020-10-27 23:07:46,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-10-27 23:07:46,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 181. [2020-10-27 23:07:46,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-27 23:07:46,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 238 transitions. [2020-10-27 23:07:46,215 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 238 transitions. Word has length 75 [2020-10-27 23:07:46,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:07:46,216 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 238 transitions. [2020-10-27 23:07:46,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 23:07:46,216 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 238 transitions. [2020-10-27 23:07:46,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-27 23:07:46,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:07:46,221 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, 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, 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, 1] [2020-10-27 23:07:46,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 23:07:46,222 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:07:46,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:07:46,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1501893344, now seen corresponding path program 1 times [2020-10-27 23:07:46,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:07:46,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025274060] [2020-10-27 23:07:46,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:07:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:46,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:46,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:46,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:46,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:47,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:51,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:51,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-27 23:07:51,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:07:51,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-27 23:07:51,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:51,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:51,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-27 23:07:51,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 23:07:51,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 23:07:51,708 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:07:51,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:07:51,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:51,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:51,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:51,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:07:51,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:51,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:07:51,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:51,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:51,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:51,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:51,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:51,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:07:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:51,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:51,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:51,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:07:51,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:51,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 23:07:51,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:51,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:51,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:51,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 23:07:51,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:51,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:07:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:51,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:51,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:51,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:07:51,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:51,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:07:51,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:51,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:51,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:51,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:07:51,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:51,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:07:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:51,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:51,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:51,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:51,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:51,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:07:51,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:51,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:51,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:51,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:51,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:51,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:07:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:51,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:51,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:51,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:51,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:51,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:07:51,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:51,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:51,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:51,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:51,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:51,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:07:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:51,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:51,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:51,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:51,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:51,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:07:51,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:51,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:51,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:51,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:51,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:51,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:07:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:51,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:51,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:51,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:51,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:51,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:07:51,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:51,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:51,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:51,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:51,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:51,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 23:07:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:51,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:52,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:52,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:52,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:52,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:07:52,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:52,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:52,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:07:52,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:07:52,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:52,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 23:07:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:52,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:52,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:52,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:52,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:52,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:07:52,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:52,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:52,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:52,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:52,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:52,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 23:07:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:52,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:52,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:52,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:52,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:52,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:07:52,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:52,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:52,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:07:52,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:52,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:52,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:07:52,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025274060] [2020-10-27 23:07:52,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:07:52,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:07:52,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851064656] [2020-10-27 23:07:52,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:07:52,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:07:52,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:07:52,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:07:52,138 INFO L87 Difference]: Start difference. First operand 181 states and 238 transitions. Second operand 12 states. [2020-10-27 23:07:52,487 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:07:54,138 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-27 23:07:56,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:07:56,292 INFO L93 Difference]: Finished difference Result 424 states and 589 transitions. [2020-10-27 23:07:56,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 23:07:56,293 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 115 [2020-10-27 23:07:56,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:07:56,300 INFO L225 Difference]: With dead ends: 424 [2020-10-27 23:07:56,300 INFO L226 Difference]: Without dead ends: 302 [2020-10-27 23:07:56,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-27 23:07:56,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-10-27 23:07:56,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 288. [2020-10-27 23:07:56,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-10-27 23:07:56,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 395 transitions. [2020-10-27 23:07:56,386 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 395 transitions. Word has length 115 [2020-10-27 23:07:56,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:07:56,387 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 395 transitions. [2020-10-27 23:07:56,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:07:56,387 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 395 transitions. [2020-10-27 23:07:56,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-27 23:07:56,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:07:56,397 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, 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, 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, 1, 1] [2020-10-27 23:07:56,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 23:07:56,397 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:07:56,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:07:56,397 INFO L82 PathProgramCache]: Analyzing trace with hash -2133607624, now seen corresponding path program 1 times [2020-10-27 23:07:56,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:07:56,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809703213] [2020-10-27 23:07:56,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:07:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:56,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:56,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:56,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:56,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:56,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:01,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:01,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 23:08:01,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:08:01,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 23:08:01,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-27 23:08:01,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 23:08:01,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:01,802 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:08:01,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:08:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:01,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:01,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:01,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:08:01,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:01,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:08:01,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:01,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:01,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:01,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:01,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:01,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:08:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:01,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:01,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:01,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:08:01,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:01,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 23:08:01,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:01,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:01,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:01,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 23:08:01,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:01,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:08:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:01,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:01,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:01,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:08:01,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:01,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:08:01,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:01,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:01,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:01,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:08:01,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:01,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:08:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:01,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:01,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:01,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:01,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:01,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:08:01,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:01,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:01,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:01,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:08:01,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:01,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:08:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:01,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:01,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:01,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:01,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:01,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:08:01,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:01,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:01,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:01,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:08:01,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:02,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:08:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:02,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:02,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:02,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:02,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:02,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:08:02,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:02,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:02,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:02,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:08:02,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:02,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:08:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:02,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:02,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:02,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:02,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:02,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:08:02,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:02,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:02,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:02,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:08:02,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:02,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 23:08:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:02,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:02,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:02,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:02,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:02,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:08:02,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:02,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:02,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:02,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:02,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:02,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 23:08:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:02,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:02,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:02,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:02,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:02,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:08:02,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:02,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:02,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:08:02,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:02,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:02,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 23:08:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:02,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:02,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:02,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:08:02,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:02,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:08:02,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:02,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:02,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:08:02,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:02,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:02,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:08:02,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1809703213] [2020-10-27 23:08:02,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:08:02,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:08:02,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872444837] [2020-10-27 23:08:02,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:08:02,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:08:02,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:08:02,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:08:02,249 INFO L87 Difference]: Start difference. First operand 288 states and 395 transitions. Second operand 12 states. [2020-10-27 23:08:02,590 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:08:05,296 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:08:05,442 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:08:06,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:08:06,108 INFO L93 Difference]: Finished difference Result 742 states and 1051 transitions. [2020-10-27 23:08:06,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 23:08:06,109 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 116 [2020-10-27 23:08:06,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:08:06,115 INFO L225 Difference]: With dead ends: 742 [2020-10-27 23:08:06,120 INFO L226 Difference]: Without dead ends: 513 [2020-10-27 23:08:06,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2020-10-27 23:08:06,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2020-10-27 23:08:06,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 490. [2020-10-27 23:08:06,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-10-27 23:08:06,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 689 transitions. [2020-10-27 23:08:06,176 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 689 transitions. Word has length 116 [2020-10-27 23:08:06,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:08:06,177 INFO L481 AbstractCegarLoop]: Abstraction has 490 states and 689 transitions. [2020-10-27 23:08:06,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:08:06,177 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 689 transitions. [2020-10-27 23:08:06,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-27 23:08:06,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:08:06,179 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, 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, 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, 1, 1, 1] [2020-10-27 23:08:06,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 23:08:06,179 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:08:06,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:08:06,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1588804222, now seen corresponding path program 1 times [2020-10-27 23:08:06,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:08:06,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286891569] [2020-10-27 23:08:06,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:08:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:06,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:06,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:06,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:06,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:07,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:11,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:11,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 23:08:11,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:08:11,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 23:08:11,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:11,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:11,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 23:08:11,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-27 23:08:11,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:11,572 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:08:11,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:08:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:11,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:11,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:11,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:08:11,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:11,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:08:11,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:11,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:11,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:11,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:11,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:11,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:08:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:11,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:11,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:11,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:08:11,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:11,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 23:08:11,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:11,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:11,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:11,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 23:08:11,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:11,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:08:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:11,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:11,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:11,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:08:11,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:11,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:08:11,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:11,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:11,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:11,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:08:11,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:11,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:08:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:11,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:11,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:11,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:11,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:11,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:08:11,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:11,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:11,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:11,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:08:11,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:11,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:08:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:11,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:11,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:11,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:11,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:11,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:08:11,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:11,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:11,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:11,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:08:11,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:11,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:08:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:11,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:11,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:11,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:11,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:11,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:08:11,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:11,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:11,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:11,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:08:11,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:11,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:08:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:11,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:11,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:11,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:11,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:11,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:08:11,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:11,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:11,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:11,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:08:11,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:11,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 23:08:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:11,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:11,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:11,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:11,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:11,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:08:11,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:11,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:11,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:11,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:08:11,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:11,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 23:08:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:11,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:11,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:11,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:11,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:11,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:08:11,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:11,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:11,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:11,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:08:11,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:11,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-27 23:08:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:11,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:11,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:11,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:08:11,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:11,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:08:11,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:11,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:11,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:08:11,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:11,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:11,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:08:11,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286891569] [2020-10-27 23:08:11,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:08:11,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:08:11,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312305550] [2020-10-27 23:08:11,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:08:11,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:08:11,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:08:11,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:08:11,958 INFO L87 Difference]: Start difference. First operand 490 states and 689 transitions. Second operand 12 states. [2020-10-27 23:08:12,289 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:08:15,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:08:15,579 INFO L93 Difference]: Finished difference Result 1340 states and 1913 transitions. [2020-10-27 23:08:15,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 23:08:15,584 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 117 [2020-10-27 23:08:15,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:08:15,591 INFO L225 Difference]: With dead ends: 1340 [2020-10-27 23:08:15,591 INFO L226 Difference]: Without dead ends: 909 [2020-10-27 23:08:15,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-27 23:08:15,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2020-10-27 23:08:15,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 870. [2020-10-27 23:08:15,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 870 states. [2020-10-27 23:08:15,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1237 transitions. [2020-10-27 23:08:15,669 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1237 transitions. Word has length 117 [2020-10-27 23:08:15,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:08:15,670 INFO L481 AbstractCegarLoop]: Abstraction has 870 states and 1237 transitions. [2020-10-27 23:08:15,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:08:15,670 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1237 transitions. [2020-10-27 23:08:15,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-27 23:08:15,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:08:15,671 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, 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, 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, 1, 1, 1, 1] [2020-10-27 23:08:15,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 23:08:15,672 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:08:15,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:08:15,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1319359742, now seen corresponding path program 1 times [2020-10-27 23:08:15,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:08:15,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519088253] [2020-10-27 23:08:15,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:08:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:15,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:15,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:15,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:17,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:20,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:20,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-27 23:08:20,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:08:20,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-27 23:08:20,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:20,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:20,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 23:08:20,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 23:08:20,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:21,117 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:08:21,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:08:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:21,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:21,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:21,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:08:21,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:21,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:08:21,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:21,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:21,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:21,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:21,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:21,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:08:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:21,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:21,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:21,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:08:21,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:21,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 23:08:21,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:21,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:21,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:21,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 23:08:21,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:21,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:08:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:21,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:21,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:21,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:08:21,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:21,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:21,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:21,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:21,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:21,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:08:21,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:21,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:08:21,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:21,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:21,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:21,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:21,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:21,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:08:21,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:21,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:21,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:21,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:08:21,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:21,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:08:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:21,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:21,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:21,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:21,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:21,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:08:21,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:21,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:21,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:21,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:08:21,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:21,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:08:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:21,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:21,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:21,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:21,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:21,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:08:21,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:21,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:21,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:21,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:08:21,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:21,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:08:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:21,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:21,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:21,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:21,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:21,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:08:21,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:21,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:21,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 23:08:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:21,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:21,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:21,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:21,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:21,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:21,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:21,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:21,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:21,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:21,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:21,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 23:08:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:21,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:21,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:21,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:21,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:21,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:21,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:21,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:21,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:21,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:21,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:21,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:08:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:21,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:21,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:21,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:08:21,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:21,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:08:21,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:21,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:21,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:08:21,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:21,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:21,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:08:21,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [519088253] [2020-10-27 23:08:21,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:08:21,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:08:21,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532983804] [2020-10-27 23:08:21,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:08:21,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:08:21,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:08:21,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:08:21,526 INFO L87 Difference]: Start difference. First operand 870 states and 1237 transitions. Second operand 12 states. [2020-10-27 23:08:21,854 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:08:25,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:08:25,493 INFO L93 Difference]: Finished difference Result 2460 states and 3513 transitions. [2020-10-27 23:08:25,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 23:08:25,494 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 118 [2020-10-27 23:08:25,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:08:25,505 INFO L225 Difference]: With dead ends: 2460 [2020-10-27 23:08:25,506 INFO L226 Difference]: Without dead ends: 1649 [2020-10-27 23:08:25,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-27 23:08:25,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2020-10-27 23:08:25,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1582. [2020-10-27 23:08:25,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1582 states. [2020-10-27 23:08:25,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 2253 transitions. [2020-10-27 23:08:25,689 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 2253 transitions. Word has length 118 [2020-10-27 23:08:25,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:08:25,689 INFO L481 AbstractCegarLoop]: Abstraction has 1582 states and 2253 transitions. [2020-10-27 23:08:25,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:08:25,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 2253 transitions. [2020-10-27 23:08:25,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-27 23:08:25,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:08:25,691 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, 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, 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, 1, 1, 1, 1, 1] [2020-10-27 23:08:25,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 23:08:25,692 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:08:25,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:08:25,692 INFO L82 PathProgramCache]: Analyzing trace with hash -168267056, now seen corresponding path program 1 times [2020-10-27 23:08:25,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:08:25,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669758957] [2020-10-27 23:08:25,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:08:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:25,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:25,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:26,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:28,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:28,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-27 23:08:28,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:08:28,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2482 [2020-10-27 23:08:28,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:28,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:28,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 23:08:28,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 23:08:28,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:28,534 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:08:28,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:08:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:28,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:28,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:28,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:08:28,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:28,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:08:28,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:28,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:28,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:28,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:28,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:28,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:08:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:28,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:28,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:28,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:08:28,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:28,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:08:28,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:28,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:28,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:28,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:08:28,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:28,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:08:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:28,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:28,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:28,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:08:28,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:28,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:08:28,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:28,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:28,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:28,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:08:28,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:28,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:08:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:28,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:28,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:28,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:28,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:28,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:08:28,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:08:28,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:28,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:08:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:28,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:28,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:28,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:28,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:28,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:08:28,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:28,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:28,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:28,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:08:28,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:28,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:08:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:28,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:28,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:28,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:28,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:28,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:28,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:28,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:28,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:28,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:28,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:28,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:08:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:28,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:28,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:28,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:28,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:28,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:28,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:28,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:28,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:28,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:28,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:28,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 23:08:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:28,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:28,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:28,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:28,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:28,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:28,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:28,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:28,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:28,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:28,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:28,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 23:08:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:28,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:28,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:28,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:28,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:28,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:28,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:28,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:28,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 23:08:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:28,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:28,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:28,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:08:28,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:28,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:08:28,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:28,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:28,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:08:28,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:28,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:28,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:08:28,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669758957] [2020-10-27 23:08:28,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:08:28,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:08:28,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341317193] [2020-10-27 23:08:28,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:08:28,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:08:28,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:08:28,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:08:28,903 INFO L87 Difference]: Start difference. First operand 1582 states and 2253 transitions. Second operand 12 states. [2020-10-27 23:08:29,255 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:08:32,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:08:32,956 INFO L93 Difference]: Finished difference Result 4548 states and 6465 transitions. [2020-10-27 23:08:32,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 23:08:32,956 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 119 [2020-10-27 23:08:32,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:08:32,974 INFO L225 Difference]: With dead ends: 4548 [2020-10-27 23:08:32,974 INFO L226 Difference]: Without dead ends: 3025 [2020-10-27 23:08:32,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-27 23:08:32,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states. [2020-10-27 23:08:33,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 2910. [2020-10-27 23:08:33,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2910 states. [2020-10-27 23:08:33,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2910 states to 2910 states and 4125 transitions. [2020-10-27 23:08:33,251 INFO L78 Accepts]: Start accepts. Automaton has 2910 states and 4125 transitions. Word has length 119 [2020-10-27 23:08:33,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:08:33,251 INFO L481 AbstractCegarLoop]: Abstraction has 2910 states and 4125 transitions. [2020-10-27 23:08:33,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:08:33,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2910 states and 4125 transitions. [2020-10-27 23:08:33,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-27 23:08:33,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:08:33,253 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, 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, 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, 1, 1, 1, 1, 1, 1] [2020-10-27 23:08:33,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 23:08:33,254 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:08:33,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:08:33,254 INFO L82 PathProgramCache]: Analyzing trace with hash 754851034, now seen corresponding path program 1 times [2020-10-27 23:08:33,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:08:33,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962931833] [2020-10-27 23:08:33,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:08:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:33,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:33,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:34,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:34,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-27 23:08:34,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:08:34,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1585 [2020-10-27 23:08:34,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:34,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:34,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 23:08:34,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 23:08:34,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:35,177 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:08:35,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:08:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:35,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:35,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:35,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:08:35,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:35,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:08:35,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:35,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:35,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:35,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:35,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:35,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:08:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:35,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:35,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:35,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:08:35,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:35,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:08:35,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:35,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:35,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:35,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:08:35,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:35,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:08:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:35,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:35,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:35,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:08:35,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:35,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:08:35,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:35,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:35,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:35,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:08:35,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:35,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:08:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:35,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:35,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:35,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:35,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:35,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:08:35,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:35,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:35,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:35,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:08:35,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:35,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:08:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:35,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:35,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:35,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:35,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:35,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:35,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:35,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:35,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:35,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:35,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:35,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:08:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:35,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:35,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:35,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:35,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:35,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:35,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:35,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:35,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:35,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:35,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:35,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:08:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:35,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:35,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:35,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:35,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:35,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:35,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:35,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:35,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:35,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:35,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:35,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:08:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:35,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:35,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:35,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:35,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:35,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:08:35,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:35,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:35,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:35,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:35,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:35,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 23:08:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:35,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:35,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:35,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:35,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:35,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:08:35,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:35,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:35,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:35,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:35,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:35,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:08:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:35,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:35,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:35,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:08:35,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:35,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:08:35,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:35,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:35,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:08:35,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:35,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:35,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:08:35,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962931833] [2020-10-27 23:08:35,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:08:35,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:08:35,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183089173] [2020-10-27 23:08:35,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:08:35,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:08:35,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:08:35,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:08:35,521 INFO L87 Difference]: Start difference. First operand 2910 states and 4125 transitions. Second operand 12 states. [2020-10-27 23:08:35,918 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:08:39,521 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 23:08:40,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:08:40,151 INFO L93 Difference]: Finished difference Result 8420 states and 11873 transitions. [2020-10-27 23:08:40,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 23:08:40,152 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 120 [2020-10-27 23:08:40,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:08:40,184 INFO L225 Difference]: With dead ends: 8420 [2020-10-27 23:08:40,184 INFO L226 Difference]: Without dead ends: 5569 [2020-10-27 23:08:40,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-27 23:08:40,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5569 states. [2020-10-27 23:08:40,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5569 to 5374. [2020-10-27 23:08:40,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5374 states. [2020-10-27 23:08:40,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5374 states to 5374 states and 7549 transitions. [2020-10-27 23:08:40,684 INFO L78 Accepts]: Start accepts. Automaton has 5374 states and 7549 transitions. Word has length 120 [2020-10-27 23:08:40,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:08:40,685 INFO L481 AbstractCegarLoop]: Abstraction has 5374 states and 7549 transitions. [2020-10-27 23:08:40,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:08:40,685 INFO L276 IsEmpty]: Start isEmpty. Operand 5374 states and 7549 transitions. [2020-10-27 23:08:40,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-27 23:08:40,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:08:40,687 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, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:08:40,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 23:08:40,687 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:08:40,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:08:40,688 INFO L82 PathProgramCache]: Analyzing trace with hash -370289350, now seen corresponding path program 1 times [2020-10-27 23:08:40,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:08:40,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442826635] [2020-10-27 23:08:40,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:08:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:40,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:40,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:43,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:43,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-27 23:08:43,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:08:43,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2624 [2020-10-27 23:08:43,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 23:08:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 23:08:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-27 23:08:43,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:43,711 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:08:43,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:08:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:43,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:43,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:43,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:08:43,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:43,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:08:43,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:43,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:43,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:43,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:43,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:43,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:08:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:43,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:43,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:43,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:08:43,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:43,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-27 23:08:43,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:43,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:08:43,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:43,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 23:08:43,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:43,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:08:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:43,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:43,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:43,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:08:43,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:43,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:43,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:43,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:43,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:43,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:08:43,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:43,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:08:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:43,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:43,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:43,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:43,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:43,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:08:43,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:43,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:43,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:43,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:08:43,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:44,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:08:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:44,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:44,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:44,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:44,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:44,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:08:44,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:44,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:44,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:44,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:08:44,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:44,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 23:08:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:44,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:44,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:44,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:44,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:44,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:08:44,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:44,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:44,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:44,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:08:44,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:44,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 23:08:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:44,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:44,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:44,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:44,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:44,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:08:44,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:44,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:44,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:44,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:08:44,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:44,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 23:08:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:44,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:44,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:44,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:44,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:44,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:08:44,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:44,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:44,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:44,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:08:44,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:44,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 23:08:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:44,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:44,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:44,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:44,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:44,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:08:44,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:44,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:44,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:44,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:08:44,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:44,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-27 23:08:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:44,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:44,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:44,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:08:44,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:44,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:08:44,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:44,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:44,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:08:44,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:08:44,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:44,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:08:44,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442826635] [2020-10-27 23:08:44,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:08:44,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-27 23:08:44,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048137114] [2020-10-27 23:08:44,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-27 23:08:44,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:08:44,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-27 23:08:44,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:08:44,462 INFO L87 Difference]: Start difference. First operand 5374 states and 7549 transitions. Second operand 22 states. [2020-10-27 23:08:44,894 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-27 23:08:45,280 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-27 23:08:45,645 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:08:46,047 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:08:46,431 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-27 23:08:46,826 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-27 23:08:47,231 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-27 23:08:47,476 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-27 23:08:47,720 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-27 23:08:47,942 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-27 23:08:48,175 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-27 23:08:48,394 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:08:53,387 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:08:53,537 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-27 23:08:53,696 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-27 23:08:53,857 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:08:54,090 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-27 23:08:55,716 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:08:56,069 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-27 23:08:56,428 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-27 23:08:56,804 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-27 23:08:57,192 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-27 23:08:57,598 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-27 23:09:00,355 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:09:03,042 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-27 23:09:03,200 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 23:09:03,374 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:09:03,837 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-27 23:09:03,991 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:09:04,135 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:09:06,180 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 23:09:06,332 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:09:06,892 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:09:09,050 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 23:09:09,199 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:09:09,732 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:09:11,923 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:09:12,446 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:09:12,810 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 23:09:13,374 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:09:14,213 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-27 23:09:14,360 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:09:14,653 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-27 23:09:14,832 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:09:15,004 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:09:15,620 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2020-10-27 23:09:15,945 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:09:21,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:09:21,418 INFO L93 Difference]: Finished difference Result 86373 states and 128151 transitions. [2020-10-27 23:09:21,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2020-10-27 23:09:21,419 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 121 [2020-10-27 23:09:21,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:09:22,026 INFO L225 Difference]: With dead ends: 86373 [2020-10-27 23:09:22,026 INFO L226 Difference]: Without dead ends: 81058 [2020-10-27 23:09:22,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8571 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=3884, Invalid=19068, Unknown=0, NotChecked=0, Total=22952 [2020-10-27 23:09:22,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81058 states. [2020-10-27 23:09:28,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81058 to 70846. [2020-10-27 23:09:28,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70846 states. [2020-10-27 23:09:28,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70846 states to 70846 states and 99901 transitions. [2020-10-27 23:09:28,835 INFO L78 Accepts]: Start accepts. Automaton has 70846 states and 99901 transitions. Word has length 121 [2020-10-27 23:09:28,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:09:28,835 INFO L481 AbstractCegarLoop]: Abstraction has 70846 states and 99901 transitions. [2020-10-27 23:09:28,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-27 23:09:28,835 INFO L276 IsEmpty]: Start isEmpty. Operand 70846 states and 99901 transitions. [2020-10-27 23:09:28,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-27 23:09:28,837 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:09:28,837 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:09:28,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 23:09:28,837 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:09:28,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:09:28,838 INFO L82 PathProgramCache]: Analyzing trace with hash -2111337126, now seen corresponding path program 1 times [2020-10-27 23:09:28,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:09:28,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1001385] [2020-10-27 23:09:28,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:09:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:28,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:29,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:31,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:31,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-27 23:09:31,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:09:31,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2298 [2020-10-27 23:09:31,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:31,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:09:31,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-27 23:09:31,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:09:31,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:31,580 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:09:31,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:09:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:31,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:31,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:31,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:09:31,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:31,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:09:31,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:31,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:31,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:31,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:31,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:31,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:09:31,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:31,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:31,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:31,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:09:31,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:31,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:09:31,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:31,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:31,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:09:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:31,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:31,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:31,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:09:31,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:31,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:09:31,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:31,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:31,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:31,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:31,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:31,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:09:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:31,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:31,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:31,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:31,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:31,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:09:31,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:31,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:31,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:31,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:31,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:31,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:09:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:31,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:31,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:31,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:31,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:31,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:09:31,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:31,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:31,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:31,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:31,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:31,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 23:09:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:31,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:31,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:31,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:31,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:31,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:09:31,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:31,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:31,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:31,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:31,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:31,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 23:09:31,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:31,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:31,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:31,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:31,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:31,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:09:31,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:31,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:31,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:31,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:31,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:31,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 23:09:31,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:31,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:31,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:31,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:31,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:31,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:09:31,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:31,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:31,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:31,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:31,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:31,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 23:09:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:31,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:31,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:31,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:31,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:31,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:09:31,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:31,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:31,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:31,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:31,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:31,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-27 23:09:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:31,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:31,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:31,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:09:31,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:31,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:09:31,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:31,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:09:31,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:31,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:09:31,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:31,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:09:31,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1001385] [2020-10-27 23:09:31,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:09:31,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 23:09:31,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833886339] [2020-10-27 23:09:31,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 23:09:31,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:09:31,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 23:09:31,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-27 23:09:31,947 INFO L87 Difference]: Start difference. First operand 70846 states and 99901 transitions. Second operand 15 states. [2020-10-27 23:09:34,029 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:09:34,360 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-27 23:09:34,721 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:09:35,063 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-27 23:09:39,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:09:39,793 INFO L93 Difference]: Finished difference Result 83137 states and 119295 transitions. [2020-10-27 23:09:39,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 23:09:39,793 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 122 [2020-10-27 23:09:39,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:09:40,427 INFO L225 Difference]: With dead ends: 83137 [2020-10-27 23:09:40,427 INFO L226 Difference]: Without dead ends: 83134 [2020-10-27 23:09:40,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2020-10-27 23:09:40,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83134 states. [2020-10-27 23:09:46,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83134 to 74878. [2020-10-27 23:09:46,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74878 states. [2020-10-27 23:09:46,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74878 states to 74878 states and 103933 transitions. [2020-10-27 23:09:46,646 INFO L78 Accepts]: Start accepts. Automaton has 74878 states and 103933 transitions. Word has length 122 [2020-10-27 23:09:46,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:09:46,646 INFO L481 AbstractCegarLoop]: Abstraction has 74878 states and 103933 transitions. [2020-10-27 23:09:46,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 23:09:46,646 INFO L276 IsEmpty]: Start isEmpty. Operand 74878 states and 103933 transitions. [2020-10-27 23:09:46,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-27 23:09:46,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:09:46,648 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:09:46,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 23:09:46,648 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:09:46,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:09:46,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1485662818, now seen corresponding path program 1 times [2020-10-27 23:09:46,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:09:46,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87738119] [2020-10-27 23:09:46,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:09:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:46,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:46,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:48,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:48,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-27 23:09:48,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:09:48,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1570 [2020-10-27 23:09:48,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:48,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:09:48,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 23:09:48,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-27 23:09:48,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:48,653 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:09:48,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:09:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:48,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:48,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:48,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:09:48,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:48,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:09:48,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:48,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:48,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:48,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:48,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:48,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:09:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:48,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:48,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:48,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:09:48,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:48,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:09:48,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:48,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:48,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:48,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:09:48,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:48,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:09:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:48,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:48,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:48,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:09:48,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:48,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:09:48,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:48,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:48,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:48,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:09:48,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:48,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:09:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:48,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:48,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:48,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:48,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:48,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:09:48,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:48,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:09:48,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:48,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:09:48,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:48,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:09:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:48,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:48,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:48,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:48,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:48,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:09:48,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:48,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:09:48,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:48,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:09:48,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:48,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 23:09:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:48,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:48,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:48,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:48,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:48,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:09:48,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:48,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:09:48,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:48,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:09:48,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:48,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 23:09:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:49,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:49,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:49,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:49,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:49,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:09:49,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:49,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:09:49,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:49,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:09:49,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:49,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 23:09:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:49,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:49,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:49,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:49,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:49,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:09:49,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:49,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:09:49,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:49,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:09:49,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:49,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 23:09:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:49,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:49,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:49,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:49,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:49,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:09:49,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:49,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:49,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 23:09:49,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:09:49,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:49,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-27 23:09:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:49,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:49,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:49,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:49,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:49,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:09:49,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:49,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:49,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:09:49,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:49,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:49,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:09:49,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87738119] [2020-10-27 23:09:49,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:09:49,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-27 23:09:49,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996160891] [2020-10-27 23:09:49,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-27 23:09:49,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:09:49,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-27 23:09:49,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2020-10-27 23:09:49,273 INFO L87 Difference]: Start difference. First operand 74878 states and 103933 transitions. Second operand 21 states. [2020-10-27 23:09:49,766 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:09:50,200 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:09:51,283 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:51,471 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:09:51,622 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:09:52,218 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:09:52,607 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:52,981 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:53,179 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 23:09:53,339 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:09:53,477 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:09:53,629 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:09:54,305 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 23:09:54,689 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:09:55,105 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:09:55,537 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:09:55,916 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:09:56,323 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:09:56,694 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-27 23:09:56,843 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 23:09:57,001 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 23:09:57,175 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 23:09:57,323 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:09:57,500 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 23:09:57,651 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:09:57,831 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:09:58,978 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 23:09:59,392 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 23:09:59,796 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:10:00,238 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 23:10:00,637 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:10:01,082 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 23:10:01,485 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:10:01,917 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:10:02,320 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-27 23:10:02,724 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:10:03,138 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-27 23:10:03,289 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:10:03,464 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 23:10:03,903 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:10:04,337 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-27 23:10:04,492 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 23:10:04,660 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-27 23:10:05,065 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-27 23:10:05,458 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-27 23:10:05,631 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 23:10:05,831 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-27 23:10:06,067 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 23:10:06,289 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-27 23:10:06,474 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-27 23:10:06,635 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-27 23:10:06,790 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-27 23:10:06,947 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-27 23:10:07,198 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-27 23:10:07,355 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-27 23:10:07,597 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-27 23:10:07,749 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-27 23:10:09,285 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 23:10:09,747 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:10,168 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 23:10:10,604 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:11,033 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 23:10:11,439 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:11,866 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 23:10:12,303 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:12,753 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 23:10:13,215 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:13,645 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:14,060 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:14,480 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:14,883 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:15,313 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:15,480 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:10:15,654 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:10:16,083 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:16,541 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:16,958 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:17,390 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:17,794 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:18,220 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:18,382 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:18,564 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:10:18,978 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:10:19,393 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:19,799 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:10:20,214 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:20,637 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:10:21,072 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:21,251 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:21,432 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:10:21,591 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:21,773 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:10:21,942 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:22,128 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:10:22,546 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:10:22,959 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:23,132 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:23,316 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:23,471 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:23,651 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:23,803 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:23,978 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:24,379 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-27 23:10:24,801 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:10:25,065 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:25,243 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:25,414 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:25,595 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:25,756 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:25,949 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:26,232 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:10:26,401 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:26,569 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:10:26,734 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:26,891 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:10:27,054 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:27,558 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:10:27,723 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:28,429 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:10:31,028 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:31,466 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 23:10:31,976 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:32,465 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 23:10:32,903 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:33,333 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 23:10:33,803 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:34,275 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 23:10:34,771 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:35,249 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 23:10:35,749 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:36,238 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:36,743 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:37,204 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:37,676 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:38,188 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:38,686 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:39,174 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:39,402 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:10:39,878 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:40,323 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:40,809 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:41,262 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:41,743 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:42,209 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:42,681 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:43,151 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:43,642 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:44,113 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:44,580 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:45,032 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:45,228 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:45,421 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:10:45,864 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:10:46,295 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:10:46,767 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:10:47,203 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:10:47,676 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:10:48,158 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:10:48,634 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:10:49,089 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:10:49,562 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:10:50,025 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:10:50,494 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:10:50,956 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:10:51,152 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:51,343 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:10:51,540 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:51,746 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:10:51,945 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:52,145 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:10:52,598 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:10:53,048 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:10:53,256 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:53,462 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:10:53,918 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:10:54,365 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:10:54,833 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:10:55,264 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:10:55,712 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:10:56,158 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:10:56,340 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:56,535 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:10:56,732 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:56,917 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:10:57,107 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:57,288 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:10:57,716 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-27 23:10:58,142 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-27 23:10:58,320 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:58,499 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:10:58,939 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-27 23:10:59,351 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-27 23:10:59,777 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-27 23:11:00,200 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-27 23:11:00,630 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-27 23:11:01,060 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-27 23:11:01,262 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:11:01,436 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:11:01,622 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:11:01,796 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:11:01,987 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:11:02,192 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:11:02,374 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:11:02,578 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:11:02,781 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:11:02,989 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:11:03,176 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:11:03,373 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:11:03,841 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 196