/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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 [2020-10-15 02:45:04,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:45:04,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:45:04,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:45:04,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:45:04,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:45:04,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:45:04,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:45:04,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:45:04,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:45:04,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:45:04,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:45:04,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:45:04,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:45:04,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:45:04,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:45:04,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:45:04,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:45:04,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:45:04,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:45:04,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:45:04,688 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:45:04,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:45:04,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:45:04,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:45:04,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:45:04,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:45:04,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:45:04,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:45:04,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:45:04,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:45:04,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:45:04,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:45:04,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:45:04,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:45:04,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:45:04,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:45:04,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:45:04,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:45:04,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:45:04,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:45:04,701 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 [2020-10-15 02:45:04,722 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:45:04,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:45:04,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:45:04,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:45:04,724 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:45:04,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:45:04,725 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:45:04,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:45:04,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:45:04,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:45:04,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:45:04,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:45:04,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:45:04,726 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:45:04,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:45:04,726 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:45:04,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:45:04,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:45:04,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:45:04,727 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:45:04,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:45:04,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:45:04,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:45:04,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:45:04,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:45:04,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:45:04,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:45:04,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:45:04,732 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:45:04,732 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:45:05,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:45:05,080 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:45:05,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:45:05,085 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:45:05,085 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:45:05,086 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c [2020-10-15 02:45:05,145 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b1d262e25/ed82f1f123ae447b95f49b8824b173b1/FLAG3f3a5e08f [2020-10-15 02:45:05,677 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:45:05,677 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c [2020-10-15 02:45:05,695 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b1d262e25/ed82f1f123ae447b95f49b8824b173b1/FLAG3f3a5e08f [2020-10-15 02:45:06,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b1d262e25/ed82f1f123ae447b95f49b8824b173b1 [2020-10-15 02:45:06,027 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:45:06,028 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:45:06,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:45:06,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:45:06,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:45:06,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:45:06" (1/1) ... [2020-10-15 02:45:06,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@115854be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:06, skipping insertion in model container [2020-10-15 02:45:06,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:45:06" (1/1) ... [2020-10-15 02:45:06,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:45:06,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:45:06,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:45:06,547 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:45:06,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:45:06,708 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:45:06,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:06 WrapperNode [2020-10-15 02:45:06,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:45:06,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:45:06,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:45:06,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:45:06,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:06" (1/1) ... [2020-10-15 02:45:06,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:06" (1/1) ... [2020-10-15 02:45:06,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:06" (1/1) ... [2020-10-15 02:45:06,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:06" (1/1) ... [2020-10-15 02:45:06,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:06" (1/1) ... [2020-10-15 02:45:06,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:06" (1/1) ... [2020-10-15 02:45:06,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:06" (1/1) ... [2020-10-15 02:45:06,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:45:06,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:45:06,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:45:06,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:45:06,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:06" (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 [2020-10-15 02:45:06,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:45:06,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:45:06,905 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:45:06,905 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:45:06,906 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:45:06,907 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:45:06,907 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-15 02:45:06,908 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:45:06,908 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:45:06,908 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:45:06,909 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:45:06,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:45:06,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:45:06,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:45:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:45:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:45:06,911 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:45:06,911 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:45:06,912 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:45:06,912 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:45:06,912 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:45:06,912 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:45:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 02:45:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:45:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:45:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:45:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:45:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:45:08,193 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:45:08,194 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:45:08,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:45:08 BoogieIcfgContainer [2020-10-15 02:45:08,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:45:08,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:45:08,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:45:08,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:45:08,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:45:06" (1/3) ... [2020-10-15 02:45:08,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@425485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:45:08, skipping insertion in model container [2020-10-15 02:45:08,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:06" (2/3) ... [2020-10-15 02:45:08,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@425485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:45:08, skipping insertion in model container [2020-10-15 02:45:08,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:45:08" (3/3) ... [2020-10-15 02:45:08,209 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c [2020-10-15 02:45:08,220 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:45:08,228 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:45:08,241 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:45:08,266 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:45:08,266 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:45:08,266 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:45:08,266 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:45:08,266 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:45:08,266 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:45:08,267 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:45:08,267 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:45:08,296 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states. [2020-10-15 02:45:08,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-15 02:45:08,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:45:08,315 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] [2020-10-15 02:45:08,315 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:45:08,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:45:08,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1771600538, now seen corresponding path program 1 times [2020-10-15 02:45:08,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:45:08,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1129250072] [2020-10-15 02:45:08,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:45:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:08,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:09,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:09,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-15 02:45:09,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:09,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 531 [2020-10-15 02:45:09,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:09,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:09,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:09,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-15 02:45:09,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:09,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 02:45:09,877 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:45:09,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:45:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:09,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:09,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:09,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:45:09,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:09,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 02:45:09,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:09,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:09,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:09,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:09,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:09,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:09,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:45:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:09,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:10,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:10,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-15 02:45:10,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:10,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-15 02:45:10,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:10,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:10,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:10,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:10,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:10,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:10,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:45:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:10,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:10,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:10,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:45:10,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:10,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:45:10,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:10,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:10,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:10,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:45:10,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:10,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:10,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:45:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:10,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:10,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:10,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:10,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:10,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:45:10,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:10,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:10,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:10,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:45:10,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:10,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:45:10,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:45:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:10,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:10,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:10,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:10,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:10,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:45:10,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:10,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:10,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:10,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:45:10,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:10,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:10,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:45:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:10,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:10,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:10,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:10,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:10,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:45:10,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:10,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:10,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:10,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:45:10,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:10,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:10,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-15 02:45:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:10,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:10,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:10,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:10,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:10,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:45:10,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:10,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:10,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:10,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:45:10,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:10,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:10,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-15 02:45:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:10,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:10,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:10,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:45:10,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:10,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:45:10,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:10,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:10,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:10,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:45:10,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:10,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:10,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:45:10,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1129250072] [2020-10-15 02:45:10,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:45:10,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 02:45:10,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581584863] [2020-10-15 02:45:10,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 02:45:10,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:45:10,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 02:45:10,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 02:45:10,442 INFO L87 Difference]: Start difference. First operand 358 states. Second operand 7 states. [2020-10-15 02:45:11,333 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:45:12,205 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:45:12,711 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:45:13,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:45:13,305 INFO L93 Difference]: Finished difference Result 547 states and 921 transitions. [2020-10-15 02:45:13,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:45:13,307 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2020-10-15 02:45:13,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:45:13,325 INFO L225 Difference]: With dead ends: 547 [2020-10-15 02:45:13,325 INFO L226 Difference]: Without dead ends: 389 [2020-10-15 02:45:13,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:45:13,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-15 02:45:13,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 353. [2020-10-15 02:45:13,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-10-15 02:45:13,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 608 transitions. [2020-10-15 02:45:13,422 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 608 transitions. Word has length 108 [2020-10-15 02:45:13,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:45:13,423 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 608 transitions. [2020-10-15 02:45:13,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 02:45:13,423 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 608 transitions. [2020-10-15 02:45:13,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-15 02:45:13,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:45:13,429 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] [2020-10-15 02:45:13,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:45:13,430 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:45:13,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:45:13,431 INFO L82 PathProgramCache]: Analyzing trace with hash -878114200, now seen corresponding path program 1 times [2020-10-15 02:45:13,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:45:13,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [279467763] [2020-10-15 02:45:13,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:45:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:13,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:14,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:14,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-15 02:45:14,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:14,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1230 [2020-10-15 02:45:14,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:14,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:45:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-15 02:45:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:45:14,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:15,154 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:45:15,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:45:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:15,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:15,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:15,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:45:15,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:15,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:45:15,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:15,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:15,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:15,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:15,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:15,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:15,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:45:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:15,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:15,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:15,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-15 02:45:15,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:15,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-15 02:45:15,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:15,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:15,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:45:15,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:15,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 02:45:15,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-15 02:45:15,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:45:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:15,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:15,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:15,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:45:15,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:15,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:45:15,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:15,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:15,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:45:15,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:45:15,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:45:15,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:15,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:45:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:15,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:15,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:15,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:15,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:15,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:45:15,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:15,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:15,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:15,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:45:15,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:15,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:15,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:45:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:15,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:15,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:15,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:15,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:15,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:45:15,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:15,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:15,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:15,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:45:15,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:15,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:15,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:45:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:15,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:15,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:15,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:15,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:15,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:45:15,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:15,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:15,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:15,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:45:15,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:15,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:15,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-15 02:45:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:15,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:15,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:15,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:15,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:15,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:45:15,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:15,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:15,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:15,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:45:15,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:15,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:15,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-15 02:45:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:15,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:15,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:15,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:45:15,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:15,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:45:15,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:15,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:45:15,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:15,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:15,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:45:15,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [279467763] [2020-10-15 02:45:15,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:45:15,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:45:15,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596424376] [2020-10-15 02:45:15,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:45:15,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:45:15,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:45:15,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:45:15,919 INFO L87 Difference]: Start difference. First operand 353 states and 608 transitions. Second operand 13 states. [2020-10-15 02:45:18,189 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-15 02:45:18,595 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-15 02:45:19,147 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-15 02:45:19,525 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-15 02:45:21,834 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:45:22,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:45:22,864 INFO L93 Difference]: Finished difference Result 550 states and 925 transitions. [2020-10-15 02:45:22,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:45:22,865 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 108 [2020-10-15 02:45:22,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:45:22,875 INFO L225 Difference]: With dead ends: 550 [2020-10-15 02:45:22,875 INFO L226 Difference]: Without dead ends: 399 [2020-10-15 02:45:22,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-15 02:45:22,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-15 02:45:22,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 353. [2020-10-15 02:45:22,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-10-15 02:45:22,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 562 transitions. [2020-10-15 02:45:22,965 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 562 transitions. Word has length 108 [2020-10-15 02:45:22,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:45:22,970 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 562 transitions. [2020-10-15 02:45:22,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:45:22,971 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 562 transitions. [2020-10-15 02:45:22,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-15 02:45:22,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:45:22,991 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] [2020-10-15 02:45:22,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:45:22,991 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:45:22,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:45:22,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1443712870, now seen corresponding path program 1 times [2020-10-15 02:45:22,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:45:22,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704706972] [2020-10-15 02:45:22,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:45:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:23,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:23,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:23,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:23,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:28,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:28,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-15 02:45:28,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:45:28,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-15 02:45:28,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:28,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:45:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-15 02:45:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:45:28,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:28,595 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:45:28,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:45:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:28,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:28,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:28,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:45:28,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:28,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:45:28,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:28,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:28,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:28,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:28,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:28,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:28,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:45:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:28,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:28,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:28,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:45:28,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:28,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-15 02:45:28,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:28,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:28,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:28,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:28,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:45:28,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:28,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-15 02:45:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:28,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:28,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:28,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:45:28,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:28,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:45:28,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:28,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:28,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:28,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:28,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:45:28,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:28,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-15 02:45:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:28,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:28,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:28,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:28,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:28,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:45:28,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:28,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:28,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:28,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:28,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:45:28,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:28,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-15 02:45:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:29,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:29,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:29,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:29,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:29,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:45:29,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:29,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:29,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:29,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:29,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:45:29,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:29,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:45:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:29,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:29,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:29,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:29,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:29,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:45:29,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:29,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:29,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:45:29,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:45:29,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:45:29,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:29,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-15 02:45:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:29,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:29,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:29,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:29,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:29,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:45:29,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:29,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:29,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:29,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:45:29,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:29,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:29,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-15 02:45:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:29,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:29,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:29,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:45:29,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:29,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:45:29,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:29,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:45:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:29,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:29,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:45:29,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704706972] [2020-10-15 02:45:29,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:45:29,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:45:29,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581615641] [2020-10-15 02:45:29,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:45:29,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:45:29,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:45:29,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:45:29,284 INFO L87 Difference]: Start difference. First operand 353 states and 562 transitions. Second operand 10 states. [2020-10-15 02:45:29,694 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-15 02:45:31,447 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-15 02:45:31,808 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-15 02:45:32,231 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:45:32,560 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:45:32,865 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-15 02:45:34,154 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:45:34,663 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-15 02:45:34,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:45:34,992 INFO L93 Difference]: Finished difference Result 710 states and 1139 transitions. [2020-10-15 02:45:34,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:45:34,992 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 153 [2020-10-15 02:45:34,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:45:34,999 INFO L225 Difference]: With dead ends: 710 [2020-10-15 02:45:35,000 INFO L226 Difference]: Without dead ends: 565 [2020-10-15 02:45:35,001 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 [2020-10-15 02:45:35,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-15 02:45:35,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 488. [2020-10-15 02:45:35,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-10-15 02:45:35,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 779 transitions. [2020-10-15 02:45:35,048 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 779 transitions. Word has length 153 [2020-10-15 02:45:35,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:45:35,049 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 779 transitions. [2020-10-15 02:45:35,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:45:35,049 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 779 transitions. [2020-10-15 02:45:35,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-15 02:45:35,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:45:35,053 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] [2020-10-15 02:45:35,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:45:35,054 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:45:35,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:45:35,054 INFO L82 PathProgramCache]: Analyzing trace with hash 642033439, now seen corresponding path program 1 times [2020-10-15 02:45:35,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:45:35,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429365768] [2020-10-15 02:45:35,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:45:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:35,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:36,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:36,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:40,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:40,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-15 02:45:40,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:45:40,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-15 02:45:40,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:40,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:40,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:45:40,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:45:40,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-15 02:45:40,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:40,541 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:45:40,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:45:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:40,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:40,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:40,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:45:40,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:40,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:45:40,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:40,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:40,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:40,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:40,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:40,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:40,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:45:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:40,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:40,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:40,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:45:40,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:40,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-15 02:45:40,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:40,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:40,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:45:40,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:40,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:45:40,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:40,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-15 02:45:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:40,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:40,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:40,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:45:40,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:40,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:45:40,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:40,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:40,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:40,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:40,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:45:40,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:40,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-15 02:45:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:40,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:40,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:40,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:40,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:40,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:45:40,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:40,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:40,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:40,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:40,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:45:40,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:40,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-15 02:45:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:40,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:40,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:40,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:40,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:40,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:45:40,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:40,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:40,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:40,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:40,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:45:40,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:40,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:45:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:40,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:40,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:40,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:45:40,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:40,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:45:40,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:40,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:40,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:40,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:45:40,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:45:40,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:45:41,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-15 02:45:41,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:41,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:41,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:41,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:41,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:41,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:45:41,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:41,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:41,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:41,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:45:41,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:41,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:41,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-15 02:45:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:41,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:41,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:41,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:45:41,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:41,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:45:41,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:41,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:41,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:41,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:45:41,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:41,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:41,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:45:41,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429365768] [2020-10-15 02:45:41,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:45:41,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:45:41,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791374948] [2020-10-15 02:45:41,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:45:41,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:45:41,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:45:41,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:45:41,291 INFO L87 Difference]: Start difference. First operand 488 states and 779 transitions. Second operand 10 states. [2020-10-15 02:45:41,841 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-15 02:45:42,292 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-15 02:45:42,683 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-15 02:45:43,066 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-15 02:45:46,373 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-15 02:45:46,608 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:45:46,822 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:45:47,337 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:45:47,699 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:45:48,284 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:45:48,646 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:45:49,348 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:45:49,525 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:45:50,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:45:50,467 INFO L93 Difference]: Finished difference Result 1566 states and 2520 transitions. [2020-10-15 02:45:50,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:45:50,470 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-10-15 02:45:50,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:45:50,479 INFO L225 Difference]: With dead ends: 1566 [2020-10-15 02:45:50,479 INFO L226 Difference]: Without dead ends: 1124 [2020-10-15 02:45:50,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:45:50,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2020-10-15 02:45:50,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 984. [2020-10-15 02:45:50,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 984 states. [2020-10-15 02:45:50,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1560 transitions. [2020-10-15 02:45:50,599 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1560 transitions. Word has length 156 [2020-10-15 02:45:50,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:45:50,600 INFO L479 AbstractCegarLoop]: Abstraction has 984 states and 1560 transitions. [2020-10-15 02:45:50,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:45:50,601 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1560 transitions. [2020-10-15 02:45:50,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-15 02:45:50,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:45:50,606 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] [2020-10-15 02:45:50,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:45:50,607 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:45:50,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:45:50,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1004093253, now seen corresponding path program 1 times [2020-10-15 02:45:50,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:45:50,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620415720] [2020-10-15 02:45:50,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:45:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:50,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:50,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:51,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:51,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:51,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:51,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:55,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:55,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-15 02:45:55,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:45:55,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-15 02:45:55,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:55,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:45:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:45:55,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-15 02:45:55,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:56,136 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:45:56,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:45:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:56,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:56,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:56,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:45:56,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:56,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:45:56,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:56,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:56,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:56,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:56,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:56,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:56,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:45:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:56,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:56,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:56,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:45:56,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:56,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-15 02:45:56,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:56,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:56,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:45:56,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:56,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:45:56,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:45:56,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-15 02:45:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:56,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:56,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:56,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:45:56,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:56,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:45:56,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:56,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:56,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:56,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:56,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:45:56,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:56,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-15 02:45:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:56,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:56,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:56,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:56,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:56,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:45:56,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:56,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:56,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:56,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:56,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:45:56,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:56,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-15 02:45:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:56,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:56,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:56,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:56,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:56,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:45:56,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:56,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:56,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:56,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:56,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:45:56,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:56,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:45:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:56,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:56,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:56,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:45:56,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:56,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 02:45:56,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:56,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:56,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:56,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:45:56,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:45:56,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:56,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-15 02:45:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:56,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:56,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:56,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:56,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:56,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:45:56,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:56,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:56,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:56,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:45:56,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:56,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:56,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-15 02:45:56,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:56,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:56,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:56,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:45:56,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:56,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:45:56,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:56,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:56,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:56,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:45:56,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:56,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:57,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:45:57,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620415720] [2020-10-15 02:45:57,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:45:57,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:45:57,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786695347] [2020-10-15 02:45:57,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:45:57,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:45:57,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:45:57,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:45:57,140 INFO L87 Difference]: Start difference. First operand 984 states and 1560 transitions. Second operand 10 states. [2020-10-15 02:45:57,641 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-15 02:45:58,050 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-10-15 02:45:58,720 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-15 02:45:59,459 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 258 [2020-10-15 02:46:03,765 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-15 02:46:04,088 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:04,322 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:46:04,609 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:04,990 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:05,404 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:46:05,977 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:06,297 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:07,143 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:07,776 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:08,011 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:09,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:46:09,445 INFO L93 Difference]: Finished difference Result 3825 states and 6068 transitions. [2020-10-15 02:46:09,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:46:09,446 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-15 02:46:09,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:46:09,463 INFO L225 Difference]: With dead ends: 3825 [2020-10-15 02:46:09,463 INFO L226 Difference]: Without dead ends: 2960 [2020-10-15 02:46:09,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:46:09,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2020-10-15 02:46:09,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 2608. [2020-10-15 02:46:09,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2608 states. [2020-10-15 02:46:09,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2608 states to 2608 states and 4092 transitions. [2020-10-15 02:46:09,697 INFO L78 Accepts]: Start accepts. Automaton has 2608 states and 4092 transitions. Word has length 157 [2020-10-15 02:46:09,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:46:09,698 INFO L479 AbstractCegarLoop]: Abstraction has 2608 states and 4092 transitions. [2020-10-15 02:46:09,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:46:09,698 INFO L276 IsEmpty]: Start isEmpty. Operand 2608 states and 4092 transitions. [2020-10-15 02:46:09,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-15 02:46:09,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:46:09,705 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] [2020-10-15 02:46:09,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:46:09,706 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:46:09,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:46:09,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1242965836, now seen corresponding path program 1 times [2020-10-15 02:46:09,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:46:09,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350059036] [2020-10-15 02:46:09,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:46:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:09,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:09,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:10,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:10,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:11,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:11,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:12,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:14,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:14,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-15 02:46:14,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:46:14,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:46:14,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:14,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:14,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:46:14,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:46:14,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-15 02:46:14,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:15,247 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:46:15,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:46:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:15,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:15,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:15,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:46:15,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:15,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:46:15,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:15,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:15,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:15,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:15,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:15,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:15,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:46:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:15,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:15,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:15,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:46:15,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:15,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-15 02:46:15,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:15,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:15,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:46:15,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:15,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:46:15,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:15,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-15 02:46:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:15,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:15,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:15,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:46:15,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:15,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:46:15,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:15,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:15,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:46:15,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:15,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-15 02:46:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:15,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:15,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:15,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:15,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:15,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:46:15,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:15,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:15,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:15,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:15,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:46:15,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:15,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-15 02:46:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:15,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:15,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:15,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:15,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:15,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:46:15,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:15,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:46:15,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:15,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:46:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:15,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:15,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:15,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:46:15,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:15,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:46:15,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:15,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:15,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:15,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:46:15,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:46:15,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:15,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-15 02:46:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:15,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:15,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:15,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:15,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:15,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:46:15,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:15,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:15,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:15,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:46:15,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:15,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:15,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-15 02:46:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:15,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:15,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:15,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:46:15,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:15,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:46:15,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:15,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:15,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:15,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:46:15,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:15,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:15,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:46:15,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350059036] [2020-10-15 02:46:15,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:46:15,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:46:15,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632870606] [2020-10-15 02:46:15,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:46:15,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:46:15,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:46:15,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:46:15,795 INFO L87 Difference]: Start difference. First operand 2608 states and 4092 transitions. Second operand 10 states. [2020-10-15 02:46:16,202 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-15 02:46:16,579 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-15 02:46:16,975 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-15 02:46:17,348 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-15 02:46:20,586 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-15 02:46:20,888 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:21,092 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:21,576 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:21,928 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:22,503 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:22,831 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:23,648 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:23,846 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:25,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:46:25,127 INFO L93 Difference]: Finished difference Result 8259 states and 13025 transitions. [2020-10-15 02:46:25,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:46:25,130 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-15 02:46:25,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:46:25,161 INFO L225 Difference]: With dead ends: 8259 [2020-10-15 02:46:25,161 INFO L226 Difference]: Without dead ends: 5676 [2020-10-15 02:46:25,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:46:25,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5676 states. [2020-10-15 02:46:25,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5676 to 5014. [2020-10-15 02:46:25,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5014 states. [2020-10-15 02:46:25,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5014 states to 5014 states and 7744 transitions. [2020-10-15 02:46:25,602 INFO L78 Accepts]: Start accepts. Automaton has 5014 states and 7744 transitions. Word has length 157 [2020-10-15 02:46:25,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:46:25,603 INFO L479 AbstractCegarLoop]: Abstraction has 5014 states and 7744 transitions. [2020-10-15 02:46:25,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:46:25,603 INFO L276 IsEmpty]: Start isEmpty. Operand 5014 states and 7744 transitions. [2020-10-15 02:46:25,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-15 02:46:25,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:46:25,615 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] [2020-10-15 02:46:25,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:46:25,616 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:46:25,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:46:25,616 INFO L82 PathProgramCache]: Analyzing trace with hash -55094854, now seen corresponding path program 1 times [2020-10-15 02:46:25,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:46:25,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015810478] [2020-10-15 02:46:25,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:46:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:25,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:25,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:25,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:26,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:26,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:26,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:30,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:30,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-15 02:46:30,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:46:30,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-15 02:46:30,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:30,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:30,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:46:30,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:46:30,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-15 02:46:30,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:31,042 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:46:31,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:46:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:31,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:31,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:31,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:46:31,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:31,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:46:31,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:31,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:31,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:31,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:31,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:31,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:31,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:46:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:31,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:31,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:31,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:46:31,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:31,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-15 02:46:31,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:31,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:31,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:46:31,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:31,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 02:46:31,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:31,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-15 02:46:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:31,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:31,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:31,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:46:31,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:31,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:46:31,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:31,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:31,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:31,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:31,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:46:31,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:31,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-15 02:46:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:31,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:31,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:31,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:31,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:31,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:46:31,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:31,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:31,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:31,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:31,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:46:31,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:31,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-15 02:46:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:31,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:31,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:31,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:31,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:31,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:46:31,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:31,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:31,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:31,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:31,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:46:31,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:31,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:46:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:31,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:31,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:31,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:46:31,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:31,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:46:31,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:31,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:31,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:31,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:46:31,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:46:31,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:31,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-15 02:46:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:31,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:31,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:31,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:31,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:31,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:46:31,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:31,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:31,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:31,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:46:31,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:31,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:31,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-15 02:46:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:31,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:31,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:31,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:46:31,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:31,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:46:31,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:31,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:31,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:31,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:46:31,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:31,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:31,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:46:31,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1015810478] [2020-10-15 02:46:31,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:46:31,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:46:31,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318277991] [2020-10-15 02:46:31,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:46:31,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:46:31,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:46:31,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:46:31,476 INFO L87 Difference]: Start difference. First operand 5014 states and 7744 transitions. Second operand 10 states. [2020-10-15 02:46:31,859 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-15 02:46:32,207 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-15 02:46:32,724 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-15 02:46:33,084 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-15 02:46:36,406 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-15 02:46:36,712 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:36,917 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:37,383 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:37,764 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:38,376 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:38,714 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:39,466 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:39,683 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:40,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:46:40,930 INFO L93 Difference]: Finished difference Result 16088 states and 24989 transitions. [2020-10-15 02:46:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:46:40,937 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-10-15 02:46:40,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:46:40,985 INFO L225 Difference]: With dead ends: 16088 [2020-10-15 02:46:40,985 INFO L226 Difference]: Without dead ends: 11320 [2020-10-15 02:46:40,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:46:41,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11320 states. [2020-10-15 02:46:41,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11320 to 10038. [2020-10-15 02:46:41,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10038 states. [2020-10-15 02:46:41,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10038 states to 10038 states and 15302 transitions. [2020-10-15 02:46:41,846 INFO L78 Accepts]: Start accepts. Automaton has 10038 states and 15302 transitions. Word has length 158 [2020-10-15 02:46:41,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:46:41,847 INFO L479 AbstractCegarLoop]: Abstraction has 10038 states and 15302 transitions. [2020-10-15 02:46:41,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:46:41,847 INFO L276 IsEmpty]: Start isEmpty. Operand 10038 states and 15302 transitions. [2020-10-15 02:46:41,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-15 02:46:41,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:46:41,872 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] [2020-10-15 02:46:41,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:46:41,872 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:46:41,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:46:41,872 INFO L82 PathProgramCache]: Analyzing trace with hash -507690270, now seen corresponding path program 1 times [2020-10-15 02:46:41,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:46:41,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1043855703] [2020-10-15 02:46:41,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:46:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:41,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:42,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:42,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:42,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:43,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:43,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:43,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:46,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:46,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-15 02:46:46,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:46:46,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-15 02:46:46,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:46,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:46,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:46:46,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:46:46,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-15 02:46:46,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:47,352 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:46:47,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:46:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:47,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:47,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:47,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:46:47,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:47,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:46:47,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:47,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:47,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:47,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:47,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:47,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:47,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:46:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:47,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:47,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:47,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:46:47,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:47,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-15 02:46:47,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:47,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:47,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:46:47,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:47,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:46:47,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:47,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-15 02:46:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:47,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:47,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:47,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:46:47,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:47,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:46:47,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:47,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:47,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:47,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:47,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:46:47,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:47,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-15 02:46:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:47,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:47,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:47,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:47,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:47,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:46:47,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:47,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:47,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:47,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:47,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:46:47,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:47,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-15 02:46:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:47,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:47,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:47,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:47,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:47,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:46:47,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:47,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:47,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:47,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:47,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:46:47,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:47,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:46:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:47,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:47,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:47,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:46:47,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:47,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:46:47,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:47,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:47,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:47,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:46:47,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:46:47,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:47,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-15 02:46:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:47,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:47,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:47,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:47,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:47,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:46:47,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:47,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:47,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:47,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:46:47,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:47,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:47,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-15 02:46:47,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:47,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:47,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:47,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:46:47,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:47,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:46:47,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:47,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:47,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:47,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:46:47,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:47,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:47,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:46:47,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1043855703] [2020-10-15 02:46:47,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:46:47,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:46:47,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138316603] [2020-10-15 02:46:47,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:46:47,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:46:47,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:46:47,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:46:47,898 INFO L87 Difference]: Start difference. First operand 10038 states and 15302 transitions. Second operand 10 states. [2020-10-15 02:46:48,312 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-15 02:46:48,742 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-15 02:46:49,257 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-15 02:46:50,032 WARN L193 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 258 [2020-10-15 02:46:55,275 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-15 02:46:55,595 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:56,187 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:56,452 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:57,427 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:57,788 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:58,604 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:59,457 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:59,677 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:47:01,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:47:01,443 INFO L93 Difference]: Finished difference Result 36916 states and 56327 transitions. [2020-10-15 02:47:01,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:47:01,444 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-10-15 02:47:01,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:47:01,532 INFO L225 Difference]: With dead ends: 36916 [2020-10-15 02:47:01,532 INFO L226 Difference]: Without dead ends: 27772 [2020-10-15 02:47:01,564 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 [2020-10-15 02:47:01,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27772 states. [2020-10-15 02:47:04,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27772 to 24940. [2020-10-15 02:47:04,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24940 states. [2020-10-15 02:47:04,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24940 states to 24940 states and 37505 transitions. [2020-10-15 02:47:04,455 INFO L78 Accepts]: Start accepts. Automaton has 24940 states and 37505 transitions. Word has length 158 [2020-10-15 02:47:04,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:47:04,455 INFO L479 AbstractCegarLoop]: Abstraction has 24940 states and 37505 transitions. [2020-10-15 02:47:04,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:47:04,455 INFO L276 IsEmpty]: Start isEmpty. Operand 24940 states and 37505 transitions. [2020-10-15 02:47:04,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-15 02:47:04,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:47:04,510 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] [2020-10-15 02:47:04,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:47:04,510 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:47:04,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:47:04,510 INFO L82 PathProgramCache]: Analyzing trace with hash -133789841, now seen corresponding path program 1 times [2020-10-15 02:47:04,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:47:04,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346070955] [2020-10-15 02:47:04,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:47:04,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:04,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:04,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:04,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:04,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:05,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:05,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:09,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:09,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-15 02:47:09,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:47:09,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:47:09,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:09,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:09,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:47:09,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-15 02:47:09,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 02:47:09,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:09,930 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:47:09,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:47:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:09,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:09,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:09,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:47:09,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:09,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:47:09,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:09,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:09,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:09,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:47:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:09,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:10,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:10,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:47:10,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:10,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-15 02:47:10,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:10,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-15 02:47:10,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:10,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-15 02:47:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:10,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:10,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:10,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:47:10,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:10,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:47:10,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:10,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:10,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:10,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:10,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:47:10,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:10,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-15 02:47:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:10,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:10,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:10,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:10,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:10,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:47:10,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:10,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:10,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:10,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:10,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:47:10,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:10,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-15 02:47:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:10,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:10,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:10,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:10,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:10,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:47:10,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:10,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:10,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:10,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:10,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:47:10,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:10,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:47:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:10,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:10,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:10,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:47:10,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:10,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:47:10,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:10,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:10,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:10,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:10,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:47:10,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:10,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-15 02:47:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:10,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:10,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:10,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:10,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:10,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:47:10,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:10,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:10,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:47:10,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:47:10,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:47:10,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:10,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-15 02:47:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:10,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:10,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:10,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:47:10,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:10,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:47:10,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:10,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:10,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:10,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:47:10,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:10,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:10,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:47:10,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [346070955] [2020-10-15 02:47:10,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:47:10,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:47:10,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426345839] [2020-10-15 02:47:10,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:47:10,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:47:10,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:47:10,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:47:10,273 INFO L87 Difference]: Start difference. First operand 24940 states and 37505 transitions. Second operand 10 states. [2020-10-15 02:47:10,634 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-15 02:47:13,024 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-15 02:47:13,365 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-15 02:47:13,812 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-15 02:47:14,635 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:47:16,007 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:47:16,965 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-15 02:47:17,104 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:47:17,305 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-15 02:47:17,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:47:17,400 INFO L93 Difference]: Finished difference Result 54212 states and 82743 transitions. [2020-10-15 02:47:17,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:47:17,401 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 159 [2020-10-15 02:47:17,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:47:17,561 INFO L225 Difference]: With dead ends: 54212 [2020-10-15 02:47:17,561 INFO L226 Difference]: Without dead ends: 42034 [2020-10-15 02:47:17,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-15 02:47:17,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42034 states. [2020-10-15 02:47:19,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42034 to 36364. [2020-10-15 02:47:19,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36364 states. [2020-10-15 02:47:19,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36364 states to 36364 states and 55025 transitions. [2020-10-15 02:47:19,742 INFO L78 Accepts]: Start accepts. Automaton has 36364 states and 55025 transitions. Word has length 159 [2020-10-15 02:47:19,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:47:19,743 INFO L479 AbstractCegarLoop]: Abstraction has 36364 states and 55025 transitions. [2020-10-15 02:47:19,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:47:19,743 INFO L276 IsEmpty]: Start isEmpty. Operand 36364 states and 55025 transitions. [2020-10-15 02:47:19,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-15 02:47:19,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:47:19,788 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] [2020-10-15 02:47:19,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:47:19,789 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:47:19,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:47:19,789 INFO L82 PathProgramCache]: Analyzing trace with hash 2109979490, now seen corresponding path program 1 times [2020-10-15 02:47:19,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:47:19,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1907945576] [2020-10-15 02:47:19,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:47:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:19,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:19,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:19,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:21,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:22,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:22,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:22,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:23,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:24,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:24,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-15 02:47:24,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:47:24,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 02:47:24,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:24,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:24,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:47:24,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:47:24,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-15 02:47:24,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:25,247 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:47:25,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:47:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:25,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:25,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:25,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:47:25,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:25,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:47:25,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:25,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:25,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:25,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:25,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:25,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:25,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:47:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:25,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:25,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:25,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:47:25,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:25,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-15 02:47:25,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:25,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:25,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:47:25,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:25,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:47:25,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:25,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-15 02:47:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:25,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:25,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:25,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:47:25,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:25,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:47:25,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:25,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:25,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:25,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:25,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:47:25,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:25,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-15 02:47:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:25,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:25,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:25,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:25,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:25,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:47:25,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:25,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:25,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:25,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:25,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:47:25,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:25,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-15 02:47:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:25,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:25,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:25,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:25,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:25,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:47:25,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:25,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:25,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:25,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:25,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:47:25,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:25,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:47:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:25,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:25,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:25,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:47:25,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:25,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:47:25,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:25,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:25,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:25,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:25,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:47:25,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:25,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-15 02:47:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:25,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:25,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:25,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:47:25,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:25,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:47:25,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:25,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:25,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:25,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:47:25,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:47:25,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:25,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-15 02:47:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:25,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:25,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:25,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:47:25,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:25,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:47:25,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:25,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:25,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:25,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:47:25,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:25,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:25,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:47:25,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1907945576] [2020-10-15 02:47:25,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:47:25,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:47:25,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267855006] [2020-10-15 02:47:25,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:47:25,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:47:25,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:47:25,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:47:25,726 INFO L87 Difference]: Start difference. First operand 36364 states and 55025 transitions. Second operand 10 states. [2020-10-15 02:47:26,133 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-15 02:47:26,553 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-15 02:47:27,121 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-15 02:47:27,916 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 261 [2020-10-15 02:47:34,281 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-15 02:47:34,660 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:47:34,912 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:47:35,373 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:47:35,642 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:47:36,044 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:47:36,592 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:47:36,938 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:47:37,784 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:47:38,642 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:47:38,937 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:47:39,090 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:47:42,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:47:42,366 INFO L93 Difference]: Finished difference Result 140854 states and 214016 transitions. [2020-10-15 02:47:42,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:47:42,368 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-15 02:47:42,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:47:42,797 INFO L225 Difference]: With dead ends: 140854 [2020-10-15 02:47:42,798 INFO L226 Difference]: Without dead ends: 105532 [2020-10-15 02:47:42,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:47:43,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105532 states. [2020-10-15 02:47:50,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105532 to 93004. [2020-10-15 02:47:50,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93004 states. [2020-10-15 02:47:50,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93004 states to 93004 states and 139365 transitions. [2020-10-15 02:47:50,230 INFO L78 Accepts]: Start accepts. Automaton has 93004 states and 139365 transitions. Word has length 162 [2020-10-15 02:47:50,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:47:50,230 INFO L479 AbstractCegarLoop]: Abstraction has 93004 states and 139365 transitions. [2020-10-15 02:47:50,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:47:50,231 INFO L276 IsEmpty]: Start isEmpty. Operand 93004 states and 139365 transitions. [2020-10-15 02:47:50,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-15 02:47:50,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:47:50,305 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] [2020-10-15 02:47:50,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:47:50,305 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:47:50,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:47:50,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1520025685, now seen corresponding path program 1 times [2020-10-15 02:47:50,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:47:50,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747426854] [2020-10-15 02:47:50,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:47:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:50,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:50,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:50,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:50,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:51,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:51,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:51,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:51,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:55,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:55,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-15 02:47:55,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:47:55,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 02:47:55,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:55,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:55,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:47:55,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:47:55,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-15 02:47:55,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:55,738 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:47:55,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:47:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:55,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:55,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:55,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:47:55,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:55,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:47:55,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:55,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:55,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:55,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:47:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:55,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:55,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:55,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:47:55,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:55,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-15 02:47:55,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:55,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:55,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:47:55,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:55,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:47:55,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:55,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-15 02:47:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:55,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:55,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:55,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:47:55,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:55,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:47:55,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:55,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:55,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:55,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:55,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:47:55,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:55,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-15 02:47:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:55,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:55,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:55,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:55,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:55,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:47:55,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:55,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:55,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:55,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:55,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:47:55,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:55,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-15 02:47:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:55,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:55,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:55,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:55,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:55,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:47:55,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:55,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:55,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:55,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:47:55,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:56,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:47:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:56,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:56,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:56,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:47:56,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:56,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:47:56,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:56,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:56,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:56,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:56,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:47:56,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:56,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-15 02:47:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:56,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:56,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:56,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:47:56,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:56,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:47:56,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:56,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:47:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:47:56,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:56,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-15 02:47:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:56,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:56,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:56,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:47:56,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:56,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:47:56,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:56,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:56,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:56,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:47:56,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:56,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:56,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:47:56,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747426854] [2020-10-15 02:47:56,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:47:56,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:47:56,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424732273] [2020-10-15 02:47:56,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:47:56,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:47:56,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:47:56,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:47:56,161 INFO L87 Difference]: Start difference. First operand 93004 states and 139365 transitions. Second operand 10 states. [2020-10-15 02:47:56,567 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-15 02:47:56,930 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-15 02:47:57,395 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-15 02:47:57,970 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-15 02:48:05,727 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-15 02:48:06,063 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:48:06,287 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:48:06,989 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:48:07,331 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:48:08,111 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:48:08,456 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:48:09,566 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:48:09,785 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:48:14,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:48:14,942 INFO L93 Difference]: Finished difference Result 290107 states and 436205 transitions. [2020-10-15 02:48:14,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:48:14,943 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-10-15 02:48:14,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:48:15,674 INFO L225 Difference]: With dead ends: 290107 [2020-10-15 02:48:15,674 INFO L226 Difference]: Without dead ends: 200391 [2020-10-15 02:48:15,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:48:16,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200391 states. [2020-10-15 02:48:31,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200391 to 177365. [2020-10-15 02:48:31,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177365 states. [2020-10-15 02:48:32,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177365 states to 177365 states and 261319 transitions. [2020-10-15 02:48:32,160 INFO L78 Accepts]: Start accepts. Automaton has 177365 states and 261319 transitions. Word has length 163 [2020-10-15 02:48:32,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:48:32,161 INFO L479 AbstractCegarLoop]: Abstraction has 177365 states and 261319 transitions. [2020-10-15 02:48:32,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:48:32,161 INFO L276 IsEmpty]: Start isEmpty. Operand 177365 states and 261319 transitions. [2020-10-15 02:48:32,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-15 02:48:32,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:48:32,301 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, 1] [2020-10-15 02:48:32,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:48:32,301 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:48:32,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:48:32,302 INFO L82 PathProgramCache]: Analyzing trace with hash 591083583, now seen corresponding path program 1 times [2020-10-15 02:48:32,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:48:32,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208727190] [2020-10-15 02:48:32,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:48:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:32,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:32,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:32,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:32,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:33,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:34,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:34,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:34,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:34,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:39,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:39,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-15 02:48:39,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 02:48:39,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7134 [2020-10-15 02:48:39,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:39,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:48:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:48:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-15 02:48:39,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0