/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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 -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:09:55,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:09:55,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:09:55,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:09:55,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:09:55,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:09:55,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:09:55,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:09:55,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:09:55,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:09:55,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:09:55,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:09:55,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:09:55,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:09:55,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:09:55,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:09:55,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:09:55,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:09:55,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:09:55,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:09:55,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:09:55,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:09:55,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:09:55,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:09:55,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:09:55,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:09:55,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:09:55,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:09:55,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:09:55,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:09:55,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:09:55,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:09:55,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:09:55,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:09:55,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:09:55,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:09:55,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:09:55,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:09:55,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:09:55,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:09:55,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:09:55,689 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 [2020-10-14 08:09:55,710 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:09:55,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:09:55,711 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:09:55,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:09:55,712 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:09:55,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:09:55,712 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:09:55,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:09:55,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:09:55,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:09:55,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:09:55,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:09:55,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:09:55,713 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:09:55,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:09:55,714 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:09:55,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:09:55,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:09:55,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:09:55,715 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:09:55,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:09:55,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:09:55,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:09:55,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:09:55,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:09:55,716 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:09:55,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:09:55,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:09:55,716 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:09:55,716 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:09:56,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:09:56,046 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:09:56,050 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:09:56,051 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:09:56,052 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:09:56,052 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c [2020-10-14 08:09:56,123 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbb2f59c0/046ac799971d4a46b088b0b769e528be/FLAG3301ebdcb [2020-10-14 08:09:56,647 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:09:56,648 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c [2020-10-14 08:09:56,664 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbb2f59c0/046ac799971d4a46b088b0b769e528be/FLAG3301ebdcb [2020-10-14 08:09:56,951 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbb2f59c0/046ac799971d4a46b088b0b769e528be [2020-10-14 08:09:56,962 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:09:56,964 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:09:56,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:09:56,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:09:56,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:09:56,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:09:56" (1/1) ... [2020-10-14 08:09:56,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ad52665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:56, skipping insertion in model container [2020-10-14 08:09:56,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:09:56" (1/1) ... [2020-10-14 08:09:56,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:09:57,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:09:57,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:09:57,523 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:09:57,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:09:57,663 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:09:57,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57 WrapperNode [2020-10-14 08:09:57,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:09:57,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:09:57,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:09:57,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:09:57,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57" (1/1) ... [2020-10-14 08:09:57,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57" (1/1) ... [2020-10-14 08:09:57,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57" (1/1) ... [2020-10-14 08:09:57,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57" (1/1) ... [2020-10-14 08:09:57,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57" (1/1) ... [2020-10-14 08:09:57,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57" (1/1) ... [2020-10-14 08:09:57,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57" (1/1) ... [2020-10-14 08:09:57,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:09:57,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:09:57,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:09:57,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:09:57,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57" (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 [2020-10-14 08:09:57,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:09:57,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:09:57,852 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:09:57,852 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 08:09:57,853 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 08:09:57,853 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 08:09:57,853 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-14 08:09:57,853 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 08:09:57,853 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 08:09:57,853 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:09:57,854 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 08:09:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:09:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:09:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:09:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:09:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:09:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:09:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:09:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:09:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:09:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:09:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:09:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:09:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:09:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:09:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:09:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:09:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:09:59,276 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:09:59,277 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 08:09:59,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:09:59 BoogieIcfgContainer [2020-10-14 08:09:59,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:09:59,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:09:59,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:09:59,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:09:59,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:09:56" (1/3) ... [2020-10-14 08:09:59,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ceab8ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:09:59, skipping insertion in model container [2020-10-14 08:09:59,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57" (2/3) ... [2020-10-14 08:09:59,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ceab8ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:09:59, skipping insertion in model container [2020-10-14 08:09:59,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:09:59" (3/3) ... [2020-10-14 08:09:59,293 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c [2020-10-14 08:09:59,303 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:09:59,312 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 08:09:59,326 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 08:09:59,354 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:09:59,354 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:09:59,354 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:09:59,354 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:09:59,355 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:09:59,355 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:09:59,355 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:09:59,355 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:09:59,381 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states. [2020-10-14 08:09:59,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 08:09:59,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:59,400 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] [2020-10-14 08:09:59,400 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:59,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:59,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1771600538, now seen corresponding path program 1 times [2020-10-14 08:09:59,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:59,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772354358] [2020-10-14 08:09:59,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:59,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:00,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:00,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 08:10:00,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:00,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 573 [2020-10-14 08:10:00,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:00,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:00,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:00,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 08:10:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:00,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:10:00,976 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:10:00,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:00,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:01,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:01,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:01,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:01,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 08:10:01,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:01,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:01,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:01,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:01,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:01,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:01,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:01,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:01,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:01,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 08:10:01,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:01,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 08:10:01,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:01,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:01,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:01,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:01,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:01,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:01,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:10:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:01,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:01,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:01,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:01,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:01,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:10:01,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:01,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:01,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:01,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 08:10:01,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:01,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:01,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:10:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:01,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:01,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:01,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:01,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:01,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:01,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:01,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:01,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:01,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:01,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:01,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:01,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:10:01,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:01,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:01,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:01,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:01,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:01,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:01,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:01,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:01,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:01,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:01,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:01,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:01,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 08:10:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:01,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:01,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:01,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:01,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:01,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:01,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:01,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:01,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:01,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:01,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:01,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:01,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 08:10:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:01,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:01,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:01,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:01,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:01,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:01,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:01,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:01,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:01,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:01,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:01,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:01,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 08:10:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:01,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:01,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:01,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:01,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:01,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:10:01,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:01,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:01,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:01,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:01,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:01,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:01,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:10:01,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772354358] [2020-10-14 08:10:01,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:01,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:10:01,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454489295] [2020-10-14 08:10:01,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:10:01,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:01,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:10:01,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:10:01,485 INFO L87 Difference]: Start difference. First operand 358 states. Second operand 7 states. [2020-10-14 08:10:02,420 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:02,837 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:03,257 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:04,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:04,351 INFO L93 Difference]: Finished difference Result 547 states and 921 transitions. [2020-10-14 08:10:04,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:10:04,354 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2020-10-14 08:10:04,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:04,386 INFO L225 Difference]: With dead ends: 547 [2020-10-14 08:10:04,386 INFO L226 Difference]: Without dead ends: 389 [2020-10-14 08:10:04,390 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:10:04,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-14 08:10:04,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 353. [2020-10-14 08:10:04,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-10-14 08:10:04,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 608 transitions. [2020-10-14 08:10:04,506 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 608 transitions. Word has length 108 [2020-10-14 08:10:04,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:04,507 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 608 transitions. [2020-10-14 08:10:04,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:10:04,507 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 608 transitions. [2020-10-14 08:10:04,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 08:10:04,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:04,521 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] [2020-10-14 08:10:04,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:10:04,522 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:04,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:04,523 INFO L82 PathProgramCache]: Analyzing trace with hash -878114200, now seen corresponding path program 1 times [2020-10-14 08:10:04,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:04,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13337405] [2020-10-14 08:10:04,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:04,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:05,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:05,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 08:10:05,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:05,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1351 [2020-10-14 08:10:05,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:05,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:05,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:10:05,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-14 08:10:05,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:10:05,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:06,587 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:10:06,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:06,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:06,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:06,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:06,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:06,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:10:06,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:06,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:06,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:06,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:06,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:06,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:06,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:06,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:06,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:06,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 08:10:06,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:06,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-14 08:10:06,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:06,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 08:10:06,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 08:10:06,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:10:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:06,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:06,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:06,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:06,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:06,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:10:06,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:06,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:06,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:06,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 08:10:06,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:06,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:07,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:10:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:07,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:07,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:07,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:07,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:07,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:10:07,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:07,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:07,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:07,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:07,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:07,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:07,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:10:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:07,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:07,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:07,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:07,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:07,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:10:07,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:07,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:07,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:07,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:07,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:07,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:07,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 08:10:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:07,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:07,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:07,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:07,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:07,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:10:07,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:07,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:07,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:07,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:07,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:07,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:07,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 08:10:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:07,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:07,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:07,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:07,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:07,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:10:07,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:07,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:07,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:07,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:07,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:07,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:07,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 08:10:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:07,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:07,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:07,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:07,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:07,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:10:07,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:07,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:07,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:07,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:07,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:10:07,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13337405] [2020-10-14 08:10:07,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:07,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 08:10:07,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223668165] [2020-10-14 08:10:07,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:10:07,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:07,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:10:07,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:10:07,286 INFO L87 Difference]: Start difference. First operand 353 states and 608 transitions. Second operand 13 states. [2020-10-14 08:10:09,679 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-14 08:10:10,118 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-14 08:10:10,639 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-14 08:10:11,056 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-14 08:10:11,895 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:13,568 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:14,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:14,518 INFO L93 Difference]: Finished difference Result 550 states and 925 transitions. [2020-10-14 08:10:14,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:10:14,518 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 108 [2020-10-14 08:10:14,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:14,526 INFO L225 Difference]: With dead ends: 550 [2020-10-14 08:10:14,527 INFO L226 Difference]: Without dead ends: 399 [2020-10-14 08:10:14,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-14 08:10:14,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-14 08:10:14,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 353. [2020-10-14 08:10:14,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-10-14 08:10:14,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 562 transitions. [2020-10-14 08:10:14,622 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 562 transitions. Word has length 108 [2020-10-14 08:10:14,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:14,625 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 562 transitions. [2020-10-14 08:10:14,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:10:14,625 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 562 transitions. [2020-10-14 08:10:14,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-14 08:10:14,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:14,629 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:10:14,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:10:14,630 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:14,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:14,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1443712870, now seen corresponding path program 1 times [2020-10-14 08:10:14,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:14,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8838046] [2020-10-14 08:10:14,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:14,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:14,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:15,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:15,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:19,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:19,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-14 08:10:19,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:10:19,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:10:19,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:19,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:19,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:19,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 08:10:19,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 08:10:19,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:20,194 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:10:20,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:20,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:20,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:20,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:20,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:20,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:10:20,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:20,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:20,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:20,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:20,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:20,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:20,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:20,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:20,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:20,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:10:20,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:20,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-14 08:10:20,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:20,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:20,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:20,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:20,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 08:10:20,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:20,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:10:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:20,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:20,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:20,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:20,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:20,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:10:20,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:20,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:20,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:20,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:20,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:20,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:20,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:10:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:20,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:20,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:20,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:20,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:20,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:20,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:20,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:20,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:20,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:20,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:20,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:20,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:10:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:20,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:20,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:20,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:20,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:20,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:10:20,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:20,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:20,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:20,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:20,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:10:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:20,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:20,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:20,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:20,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:20,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:10:20,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:20,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:20,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:20,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:20,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:20,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:20,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:10:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:20,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:20,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:20,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:20,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:20,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:10:20,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:20,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:20,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:20,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:10:20,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:10:20,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:20,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 08:10:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:20,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:20,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:20,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:20,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:20,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:10:20,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:20,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:20,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:20,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:20,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:20,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:20,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:10:20,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8838046] [2020-10-14 08:10:20,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:20,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:10:20,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138627340] [2020-10-14 08:10:20,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:10:20,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:20,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:10:20,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:10:20,739 INFO L87 Difference]: Start difference. First operand 353 states and 562 transitions. Second operand 10 states. [2020-10-14 08:10:21,107 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 08:10:22,828 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 08:10:23,195 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 08:10:23,616 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 08:10:24,336 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:25,319 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:26,161 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 08:10:26,289 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:26,478 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 08:10:26,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:26,527 INFO L93 Difference]: Finished difference Result 710 states and 1139 transitions. [2020-10-14 08:10:26,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:10:26,528 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 153 [2020-10-14 08:10:26,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:26,538 INFO L225 Difference]: With dead ends: 710 [2020-10-14 08:10:26,538 INFO L226 Difference]: Without dead ends: 565 [2020-10-14 08:10:26,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-14 08:10:26,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-14 08:10:26,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 488. [2020-10-14 08:10:26,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-10-14 08:10:26,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 779 transitions. [2020-10-14 08:10:26,597 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 779 transitions. Word has length 153 [2020-10-14 08:10:26,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:26,598 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 779 transitions. [2020-10-14 08:10:26,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:10:26,598 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 779 transitions. [2020-10-14 08:10:26,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-14 08:10:26,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:26,602 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:10:26,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:10:26,603 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:26,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:26,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1961090059, now seen corresponding path program 1 times [2020-10-14 08:10:26,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:26,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1784102648] [2020-10-14 08:10:26,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:26,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:26,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:27,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:27,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:27,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:28,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:31,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:31,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 08:10:31,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:10:31,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-14 08:10:31,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:31,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:31,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:10:31,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:10:31,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-14 08:10:31,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:32,118 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:10:32,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:32,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:32,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:32,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:32,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:32,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:10:32,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:32,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:32,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:32,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:32,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:32,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:32,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:32,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:32,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:32,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:10:32,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:32,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 08:10:32,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:32,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:32,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:10:32,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:32,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 08:10:32,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:32,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:10:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:32,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:32,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:32,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:32,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:32,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:10:32,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:32,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:32,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:32,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:32,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:32,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:32,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:10:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:32,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:32,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:32,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:32,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:32,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:32,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:32,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:32,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:32,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:32,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:32,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:32,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:10:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:32,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:32,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:32,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:32,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:32,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:32,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:32,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:32,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:32,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:32,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:32,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:32,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:10:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:32,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:32,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:32,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:32,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:32,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:32,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:32,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:32,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:32,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:32,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:32,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:32,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:10:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:32,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:32,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:32,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:10:32,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:32,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:10:32,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:32,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:32,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:32,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:32,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:10:32,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:32,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-14 08:10:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:32,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:32,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:32,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:32,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:32,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:10:32,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:32,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:32,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:32,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:32,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:32,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:10:32,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1784102648] [2020-10-14 08:10:32,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:32,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:10:32,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738470430] [2020-10-14 08:10:32,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:10:32,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:32,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:10:32,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:10:32,743 INFO L87 Difference]: Start difference. First operand 488 states and 779 transitions. Second operand 10 states. [2020-10-14 08:10:33,123 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:10:33,505 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-14 08:10:34,088 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-14 08:10:34,797 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 261 [2020-10-14 08:10:39,211 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:10:39,494 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:39,727 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:40,127 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:40,391 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:41,377 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:41,705 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:42,142 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:42,725 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:43,054 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:43,500 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:43,964 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:45,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:45,172 INFO L93 Difference]: Finished difference Result 2022 states and 3259 transitions. [2020-10-14 08:10:45,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 08:10:45,173 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-10-14 08:10:45,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:45,186 INFO L225 Difference]: With dead ends: 2022 [2020-10-14 08:10:45,186 INFO L226 Difference]: Without dead ends: 1571 [2020-10-14 08:10:45,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:10:45,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2020-10-14 08:10:45,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1365. [2020-10-14 08:10:45,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1365 states. [2020-10-14 08:10:45,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 2177 transitions. [2020-10-14 08:10:45,351 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 2177 transitions. Word has length 156 [2020-10-14 08:10:45,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:45,352 INFO L479 AbstractCegarLoop]: Abstraction has 1365 states and 2177 transitions. [2020-10-14 08:10:45,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:10:45,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 2177 transitions. [2020-10-14 08:10:45,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-14 08:10:45,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:45,358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:10:45,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:10:45,359 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:45,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:45,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1547862592, now seen corresponding path program 1 times [2020-10-14 08:10:45,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:45,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146776189] [2020-10-14 08:10:45,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:45,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:45,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:45,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:46,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:46,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:46,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:46,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:50,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:50,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-14 08:10:50,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:10:50,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-14 08:10:50,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:50,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:50,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:10:50,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:10:50,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 08:10:50,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:50,899 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:10:50,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:50,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:50,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:50,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:50,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:50,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:10:50,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:50,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:50,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:50,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:50,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:50,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:10:50,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:50,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:51,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:51,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:10:51,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:51,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-14 08:10:51,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:51,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:51,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:10:51,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:51,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 08:10:51,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:51,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:10:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:51,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:51,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:51,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:51,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:51,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:10:51,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:51,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:51,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:51,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:51,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:51,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:51,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:10:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:51,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:51,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:51,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:51,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:51,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:10:51,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:51,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:51,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:51,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:51,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:51,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:51,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:10:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:51,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:51,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:51,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:51,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:51,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:10:51,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:51,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:51,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:51,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:51,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:51,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:51,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:10:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:51,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:51,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:51,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:51,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:51,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:51,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:51,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:51,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:51,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:51,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:51,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:51,643 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-10-14 08:10:51,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:10:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:51,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:51,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:51,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:10:51,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:51,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:10:51,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:51,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:51,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:51,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:10:51,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:10:51,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:51,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 08:10:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:51,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:51,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:51,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:51,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:51,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:10:51,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:51,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:51,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:51,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:10:51,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2146776189] [2020-10-14 08:10:51,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:51,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:10:51,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678876710] [2020-10-14 08:10:51,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:10:51,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:51,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:10:51,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:10:51,769 INFO L87 Difference]: Start difference. First operand 1365 states and 2177 transitions. Second operand 10 states. [2020-10-14 08:10:52,179 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:10:52,616 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-14 08:10:53,234 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-14 08:10:53,956 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 258 [2020-10-14 08:10:58,501 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:10:58,872 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:59,097 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:59,434 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:59,852 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:00,315 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:00,747 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:01,240 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:01,763 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:02,199 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:02,669 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:03,130 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:03,507 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:05,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:11:05,008 INFO L93 Difference]: Finished difference Result 5320 states and 8515 transitions. [2020-10-14 08:11:05,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 08:11:05,012 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-14 08:11:05,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:11:05,035 INFO L225 Difference]: With dead ends: 5320 [2020-10-14 08:11:05,035 INFO L226 Difference]: Without dead ends: 4046 [2020-10-14 08:11:05,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:11:05,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4046 states. [2020-10-14 08:11:05,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4046 to 3567. [2020-10-14 08:11:05,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3567 states. [2020-10-14 08:11:05,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3567 states to 3567 states and 5639 transitions. [2020-10-14 08:11:05,362 INFO L78 Accepts]: Start accepts. Automaton has 3567 states and 5639 transitions. Word has length 157 [2020-10-14 08:11:05,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:11:05,363 INFO L479 AbstractCegarLoop]: Abstraction has 3567 states and 5639 transitions. [2020-10-14 08:11:05,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:11:05,363 INFO L276 IsEmpty]: Start isEmpty. Operand 3567 states and 5639 transitions. [2020-10-14 08:11:05,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-14 08:11:05,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:11:05,372 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:11:05,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:11:05,373 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:11:05,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:11:05,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1840630750, now seen corresponding path program 1 times [2020-10-14 08:11:05,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:11:05,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1640203712] [2020-10-14 08:11:05,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:11:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:05,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:05,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:05,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:06,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:06,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:06,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:10,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:10,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-14 08:11:10,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:11:10,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 08:11:10,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:10,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:10,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:10,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:11:10,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 08:11:10,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:10,976 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:11:10,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:11:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:10,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:10,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:10,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:11:10,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:10,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:11:10,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:10,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:11,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:11,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:11,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:11,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:11,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:11:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:11,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:11,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:11,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:11:11,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:11,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 08:11:11,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:11,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:11,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:11,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:11,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:11:11,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:11,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:11:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:11,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:11,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:11,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:11:11,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:11,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:11:11,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:11,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:11,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:11,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:11,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:11:11,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:11,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:11:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:11,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:11,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:11,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:11,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:11,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:11,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:11,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:11,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:11,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:11,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:11,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:11,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:11:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:11,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:11,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:11,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:11,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:11,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:11:11,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:11,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:11,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:11,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:11,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:11,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:11,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:11:11,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:11,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:11,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:11,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:11,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:11,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:11,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:11,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:11,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:11,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:11,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:11,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:11,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:11:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:11,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:11,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:11,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:11:11,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:11,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:11,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:11,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:11,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:11,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:11:11,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:11:11,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:11,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 08:11:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:11,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:11,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:11,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:11:11,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:11,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:11:11,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:11,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:11,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:11,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:11:11,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:11,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:11,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:11:11,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1640203712] [2020-10-14 08:11:11,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:11:11,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:11:11,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347102261] [2020-10-14 08:11:11,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:11:11,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:11:11,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:11:11,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:11:11,607 INFO L87 Difference]: Start difference. First operand 3567 states and 5639 transitions. Second operand 10 states. [2020-10-14 08:11:12,021 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:11:12,444 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-14 08:11:12,973 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-14 08:11:13,770 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 258 [2020-10-14 08:11:19,179 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:11:19,475 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:20,024 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:20,416 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:21,228 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:21,729 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:22,035 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:22,577 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:23,015 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:23,295 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:23,770 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:24,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:11:24,977 INFO L93 Difference]: Finished difference Result 14768 states and 23487 transitions. [2020-10-14 08:11:24,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 08:11:24,978 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-14 08:11:24,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:11:25,038 INFO L225 Difference]: With dead ends: 14768 [2020-10-14 08:11:25,039 INFO L226 Difference]: Without dead ends: 11550 [2020-10-14 08:11:25,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:11:25,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11550 states. [2020-10-14 08:11:25,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11550 to 10251. [2020-10-14 08:11:25,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10251 states. [2020-10-14 08:11:26,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10251 states to 10251 states and 16135 transitions. [2020-10-14 08:11:26,008 INFO L78 Accepts]: Start accepts. Automaton has 10251 states and 16135 transitions. Word has length 157 [2020-10-14 08:11:26,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:11:26,009 INFO L479 AbstractCegarLoop]: Abstraction has 10251 states and 16135 transitions. [2020-10-14 08:11:26,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:11:26,009 INFO L276 IsEmpty]: Start isEmpty. Operand 10251 states and 16135 transitions. [2020-10-14 08:11:26,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-14 08:11:26,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:11:26,035 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:11:26,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:11:26,036 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:11:26,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:11:26,036 INFO L82 PathProgramCache]: Analyzing trace with hash -757738840, now seen corresponding path program 1 times [2020-10-14 08:11:26,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:11:26,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431094770] [2020-10-14 08:11:26,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:11:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:26,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:26,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:26,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:26,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:26,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:27,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:27,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:31,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:31,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 08:11:31,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:11:31,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-14 08:11:31,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:31,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:11:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 08:11:31,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:31,644 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:11:31,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:11:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:31,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:31,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:31,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:11:31,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:31,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:11:31,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:31,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:31,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:31,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:31,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:31,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:31,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:11:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:31,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:31,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:31,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:11:31,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:31,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 08:11:31,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:31,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:31,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:31,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:31,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:11:31,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:11:31,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:11:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:31,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:31,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:31,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:11:31,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:31,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:11:31,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:31,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:31,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:31,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:31,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:11:31,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:32,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:11:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:32,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:32,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:32,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:32,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:32,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:11:32,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:32,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:32,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:32,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:32,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:32,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:32,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:11:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:32,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:32,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:32,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:32,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:32,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:32,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:32,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:32,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:32,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:32,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:32,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:32,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:11:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:32,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:32,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:32,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:32,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:32,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:11:32,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:32,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:32,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:32,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:32,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:32,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:32,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:11:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:32,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:32,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:32,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:11:32,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:32,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:11:32,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:32,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:32,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:32,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:11:32,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:11:32,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:32,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-14 08:11:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:32,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:32,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:32,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:11:32,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:32,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:11:32,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:32,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:32,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:32,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:11:32,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:32,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:32,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:11:32,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431094770] [2020-10-14 08:11:32,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:11:32,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:11:32,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734388588] [2020-10-14 08:11:32,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:11:32,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:11:32,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:11:32,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:11:32,260 INFO L87 Difference]: Start difference. First operand 10251 states and 16135 transitions. Second operand 10 states. [2020-10-14 08:11:32,698 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:11:33,126 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-14 08:11:33,718 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-14 08:11:34,502 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 258 [2020-10-14 08:11:40,074 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:11:40,398 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:40,691 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:41,013 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:41,413 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:41,854 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:42,252 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:42,711 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:43,110 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:43,483 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:43,867 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:44,567 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:46,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:11:46,076 INFO L93 Difference]: Finished difference Result 40924 states and 64652 transitions. [2020-10-14 08:11:46,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 08:11:46,077 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-10-14 08:11:46,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:11:46,196 INFO L225 Difference]: With dead ends: 40924 [2020-10-14 08:11:46,196 INFO L226 Difference]: Without dead ends: 30893 [2020-10-14 08:11:46,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:11:46,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30893 states. [2020-10-14 08:11:49,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30893 to 27774. [2020-10-14 08:11:49,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27774 states. [2020-10-14 08:11:49,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27774 states to 27774 states and 43285 transitions. [2020-10-14 08:11:49,458 INFO L78 Accepts]: Start accepts. Automaton has 27774 states and 43285 transitions. Word has length 158 [2020-10-14 08:11:49,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:11:49,458 INFO L479 AbstractCegarLoop]: Abstraction has 27774 states and 43285 transitions. [2020-10-14 08:11:49,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:11:49,459 INFO L276 IsEmpty]: Start isEmpty. Operand 27774 states and 43285 transitions. [2020-10-14 08:11:49,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-14 08:11:49,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:11:49,529 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:11:49,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:11:49,529 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:11:49,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:11:49,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1498181690, now seen corresponding path program 1 times [2020-10-14 08:11:49,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:11:49,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366103812] [2020-10-14 08:11:49,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:11:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:49,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:49,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:49,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:50,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:50,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:50,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:54,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:54,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 08:11:54,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:11:54,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 08:11:54,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:54,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:54,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:54,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:11:54,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 08:11:54,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:54,983 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:11:54,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:11:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:54,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:54,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:54,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:11:54,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:54,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:11:54,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:54,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:54,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:54,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:54,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:54,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:55,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:11:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:55,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:55,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:55,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:11:55,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:55,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 08:11:55,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:55,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:55,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:55,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:55,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 08:11:55,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:55,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:11:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:55,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:55,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:55,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:11:55,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:55,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:11:55,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:55,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:55,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:55,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:55,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:11:55,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:55,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:11:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:55,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:55,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:55,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:55,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:55,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:11:55,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:55,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:55,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:55,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:55,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:55,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:55,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:11:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:55,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:55,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:55,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:55,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:55,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 08:11:55,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:55,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:55,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:55,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:55,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:55,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:55,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:11:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:55,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:55,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:55,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:55,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:55,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:55,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:55,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:55,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:55,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:55,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:55,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:55,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:11:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:55,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:55,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:55,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:11:55,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:55,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:55,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:55,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:55,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:55,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:11:55,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:11:55,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:55,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-14 08:11:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:55,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:55,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:55,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:11:55,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:55,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:11:55,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:55,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:55,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:55,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:11:55,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:55,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:55,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:11:55,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366103812] [2020-10-14 08:11:55,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:11:55,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:11:55,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476076539] [2020-10-14 08:11:55,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:11:55,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:11:55,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:11:55,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:11:55,531 INFO L87 Difference]: Start difference. First operand 27774 states and 43285 transitions. Second operand 10 states. [2020-10-14 08:11:55,936 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:11:56,291 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 08:11:56,943 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-14 08:11:57,332 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:12:02,272 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:12:02,618 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:02,861 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:03,462 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:04,037 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:04,715 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:05,126 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:05,795 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:06,193 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:08,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:12:08,108 INFO L93 Difference]: Finished difference Result 84587 states and 131955 transitions. [2020-10-14 08:12:08,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 08:12:08,110 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-10-14 08:12:08,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:12:08,347 INFO L225 Difference]: With dead ends: 84587 [2020-10-14 08:12:08,347 INFO L226 Difference]: Without dead ends: 59766 [2020-10-14 08:12:08,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:12:08,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59766 states. [2020-10-14 08:12:14,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59766 to 53859. [2020-10-14 08:12:14,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53859 states. [2020-10-14 08:12:14,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53859 states to 53859 states and 82381 transitions. [2020-10-14 08:12:14,190 INFO L78 Accepts]: Start accepts. Automaton has 53859 states and 82381 transitions. Word has length 158 [2020-10-14 08:12:14,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:12:14,190 INFO L479 AbstractCegarLoop]: Abstraction has 53859 states and 82381 transitions. [2020-10-14 08:12:14,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:12:14,190 INFO L276 IsEmpty]: Start isEmpty. Operand 53859 states and 82381 transitions. [2020-10-14 08:12:14,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-14 08:12:14,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:12:14,275 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:12:14,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:12:14,276 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:12:14,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:12:14,276 INFO L82 PathProgramCache]: Analyzing trace with hash 27512358, now seen corresponding path program 1 times [2020-10-14 08:12:14,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:12:14,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770245849] [2020-10-14 08:12:14,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:12:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:14,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:14,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:14,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:15,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:15,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:15,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:15,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:15,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:19,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:19,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 08:12:19,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:12:19,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 08:12:19,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:19,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:19,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:12:19,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:12:19,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 08:12:19,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:19,744 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:12:19,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:12:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:19,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:19,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:19,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:12:19,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:19,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:12:19,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:19,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:19,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:19,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:19,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:19,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:19,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:12:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:19,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:19,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:19,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:12:19,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:19,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 08:12:19,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:19,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:19,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:12:19,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:19,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:12:19,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:20,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:12:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:20,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:20,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:20,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:12:20,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:20,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:12:20,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:20,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:20,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:20,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:20,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:12:20,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:20,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:12:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:20,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:20,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:20,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:20,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:20,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:12:20,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:20,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:20,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:20,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:20,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:20,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:20,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:12:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:20,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:20,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:20,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:20,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:20,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:12:20,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:20,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:20,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:20,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:20,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:20,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:20,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:12:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:20,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:20,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:20,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:20,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:20,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:12:20,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:20,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:20,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:20,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:20,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:20,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:20,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:12:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:20,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:20,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:20,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:12:20,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:20,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:12:20,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:20,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:20,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:20,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:12:20,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:12:20,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:20,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-14 08:12:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:20,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:20,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:20,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:12:20,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:20,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:12:20,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:20,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:20,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:20,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:12:20,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:20,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:20,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:12:20,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770245849] [2020-10-14 08:12:20,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:12:20,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:12:20,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134765823] [2020-10-14 08:12:20,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:12:20,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:12:20,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:12:20,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:12:20,375 INFO L87 Difference]: Start difference. First operand 53859 states and 82381 transitions. Second operand 10 states. [2020-10-14 08:12:20,781 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:12:21,153 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 08:12:21,573 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-14 08:12:21,965 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:12:28,425 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:12:28,751 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:28,968 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:30,031 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:30,362 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:31,168 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:31,478 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:32,261 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:32,637 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:35,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:12:35,016 INFO L93 Difference]: Finished difference Result 164271 states and 252046 transitions. [2020-10-14 08:12:35,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 08:12:35,017 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 159 [2020-10-14 08:12:35,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:12:35,914 INFO L225 Difference]: With dead ends: 164271 [2020-10-14 08:12:35,914 INFO L226 Difference]: Without dead ends: 110638 [2020-10-14 08:12:36,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:12:36,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110638 states. [2020-10-14 08:12:43,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110638 to 99528. [2020-10-14 08:12:43,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99528 states. [2020-10-14 08:12:44,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99528 states to 99528 states and 149493 transitions. [2020-10-14 08:12:44,121 INFO L78 Accepts]: Start accepts. Automaton has 99528 states and 149493 transitions. Word has length 159 [2020-10-14 08:12:44,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:12:44,122 INFO L479 AbstractCegarLoop]: Abstraction has 99528 states and 149493 transitions. [2020-10-14 08:12:44,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:12:44,122 INFO L276 IsEmpty]: Start isEmpty. Operand 99528 states and 149493 transitions. [2020-10-14 08:12:44,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-14 08:12:44,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:12:44,232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:12:44,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:12:44,232 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:12:44,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:12:44,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1980862141, now seen corresponding path program 1 times [2020-10-14 08:12:44,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:12:44,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [158960174] [2020-10-14 08:12:44,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:12:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:44,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:44,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:44,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:44,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:45,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:45,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:49,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:49,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 08:12:49,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:12:49,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 08:12:49,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:49,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:49,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:12:49,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-14 08:12:49,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 08:12:49,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:49,915 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:12:49,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:12:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:49,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:49,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:49,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:12:49,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:49,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:12:49,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:49,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:49,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:49,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:49,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:49,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:49,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:12:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:49,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:50,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:50,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:12:50,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:50,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 08:12:50,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:50,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:50,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:50,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:50,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 08:12:50,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:50,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:12:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:50,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:50,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:50,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:12:50,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:50,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:12:50,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:50,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:50,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:50,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:50,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:12:50,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:50,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:12:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:50,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:50,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:50,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:50,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:50,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:12:50,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:50,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:50,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:50,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:50,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:50,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:50,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:12:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:50,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:50,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:50,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:50,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:50,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:12:50,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:50,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:50,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:50,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:50,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:50,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:50,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:12:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:50,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:50,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:50,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:50,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:50,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:12:50,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:50,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:50,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:12:50,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:12:50,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:12:50,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:50,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:12:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:50,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:50,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:50,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:12:50,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:50,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:12:50,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:50,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:50,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:50,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:12:50,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:50,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:50,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-14 08:12:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:50,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:50,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:50,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:12:50,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:50,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:12:50,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:50,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:50,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:50,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:12:50,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:50,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:50,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:12:50,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [158960174] [2020-10-14 08:12:50,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:12:50,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:12:50,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664224798] [2020-10-14 08:12:50,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:12:50,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:12:50,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:12:50,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:12:50,311 INFO L87 Difference]: Start difference. First operand 99528 states and 149493 transitions. Second operand 10 states. [2020-10-14 08:12:50,706 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 08:12:56,871 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 08:12:57,350 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 08:12:57,914 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:12:58,430 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:58,835 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 08:12:58,997 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:13:01,055 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:13:01,829 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:13:02,636 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 08:13:02,813 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:13:03,120 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 08:13:03,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:13:03,418 INFO L93 Difference]: Finished difference Result 181698 states and 276733 transitions. [2020-10-14 08:13:03,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:13:03,419 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 159 [2020-10-14 08:13:03,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:13:03,916 INFO L225 Difference]: With dead ends: 181698 [2020-10-14 08:13:03,916 INFO L226 Difference]: Without dead ends: 143092 [2020-10-14 08:13:04,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-14 08:13:04,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143092 states. [2020-10-14 08:13:13,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143092 to 125908. [2020-10-14 08:13:13,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125908 states. [2020-10-14 08:13:13,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125908 states to 125908 states and 189487 transitions. [2020-10-14 08:13:13,457 INFO L78 Accepts]: Start accepts. Automaton has 125908 states and 189487 transitions. Word has length 159 [2020-10-14 08:13:13,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:13:13,458 INFO L479 AbstractCegarLoop]: Abstraction has 125908 states and 189487 transitions. [2020-10-14 08:13:13,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:13:13,458 INFO L276 IsEmpty]: Start isEmpty. Operand 125908 states and 189487 transitions. [2020-10-14 08:13:13,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-14 08:13:13,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:13:13,560 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:13:13,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:13:13,560 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:13:13,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:13:13,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1609079553, now seen corresponding path program 1 times [2020-10-14 08:13:13,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:13:13,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427108229] [2020-10-14 08:13:13,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:13:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:13,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:13,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:13,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:13,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:13,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:17,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:17,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:17,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:18,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:18,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-14 08:13:18,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:13:18,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 08:13:18,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:18,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:18,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:13:18,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:13:18,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 08:13:18,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:19,022 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:13:19,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:13:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:19,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:19,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:19,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:13:19,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:19,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:13:19,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:19,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:19,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:19,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:19,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:19,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:19,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:13:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:19,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:19,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:19,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:13:19,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:19,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 08:13:19,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:19,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:19,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:13:19,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:19,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 08:13:19,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:19,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:13:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:19,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:19,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:19,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:13:19,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:19,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:13:19,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:19,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:13:19,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:19,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:13:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:19,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:19,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:19,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:19,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:19,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:13:19,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:19,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:19,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:19,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:19,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:13:19,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:19,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:13:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:19,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:19,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:19,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:19,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:19,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:13:19,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:19,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:19,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:19,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:19,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:13:19,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:19,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:13:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:19,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:19,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:19,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:13:19,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:19,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:13:19,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:19,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:19,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:19,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:13:19,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:13:19,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:19,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 08:13:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:19,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:19,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:19,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:13:19,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:19,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:13:19,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:19,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:19,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:19,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:13:19,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:19,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:19,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 08:13:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:19,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:19,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:19,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:13:19,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:19,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:13:19,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:19,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:19,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:19,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:13:19,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:19,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:21,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:13:21,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427108229] [2020-10-14 08:13:21,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:13:21,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:13:21,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698991619] [2020-10-14 08:13:21,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:13:21,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:13:21,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:13:21,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:13:21,415 INFO L87 Difference]: Start difference. First operand 125908 states and 189487 transitions. Second operand 10 states. [2020-10-14 08:13:21,859 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:13:22,305 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-10-14 08:13:22,791 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-14 08:13:23,624 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 258