/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_floodmax.3.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:21:00,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:21:00,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:21:00,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:21:00,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:21:00,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:21:00,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:21:00,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:21:00,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:21:00,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:21:00,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:21:00,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:21:00,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:21:00,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:21:00,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:21:00,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:21:00,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:21:00,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:21:00,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:21:00,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:21:00,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:21:00,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:21:00,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:21:00,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:21:00,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:21:00,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:21:00,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:21:00,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:21:00,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:21:00,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:21:00,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:21:00,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:21:00,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:21:00,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:21:00,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:21:00,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:21:00,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:21:00,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:21:00,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:21:00,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:21:00,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:21:00,901 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 02:21:00,938 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:21:00,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:21:00,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:21:00,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:21:00,939 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:21:00,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:21:00,940 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:21:00,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:21:00,940 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:21:00,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:21:00,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:21:00,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:21:00,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:21:00,941 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:21:00,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:21:00,941 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:21:00,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:21:00,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:21:00,942 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:21:00,942 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:21:00,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:21:00,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:21:00,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:21:00,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:21:00,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:21:00,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:21:00,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:21:00,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:21:00,944 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:21:00,944 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 02:21:01,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:21:01,239 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:21:01,242 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:21:01,244 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:21:01,244 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:21:01,245 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.ufo.BOUNDED-6.pals.c [2020-10-15 02:21:01,320 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dda4c1a63/4f10ddb80aa44322b90bcc633eebb48d/FLAGe90447dd3 [2020-10-15 02:21:01,869 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:21:01,869 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.ufo.BOUNDED-6.pals.c [2020-10-15 02:21:01,889 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dda4c1a63/4f10ddb80aa44322b90bcc633eebb48d/FLAGe90447dd3 [2020-10-15 02:21:02,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dda4c1a63/4f10ddb80aa44322b90bcc633eebb48d [2020-10-15 02:21:02,117 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:21:02,119 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:21:02,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:21:02,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:21:02,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:21:02,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:21:02" (1/1) ... [2020-10-15 02:21:02,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@283a534f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:02, skipping insertion in model container [2020-10-15 02:21:02,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:21:02" (1/1) ... [2020-10-15 02:21:02,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:21:02,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:21:02,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:21:02,494 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:21:02,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:21:02,672 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:21:02,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:02 WrapperNode [2020-10-15 02:21:02,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:21:02,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:21:02,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:21:02,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:21:02,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:02" (1/1) ... [2020-10-15 02:21:02,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:02" (1/1) ... [2020-10-15 02:21:02,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:02" (1/1) ... [2020-10-15 02:21:02,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:02" (1/1) ... [2020-10-15 02:21:02,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:02" (1/1) ... [2020-10-15 02:21:02,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:02" (1/1) ... [2020-10-15 02:21:02,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:02" (1/1) ... [2020-10-15 02:21:02,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:21:02,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:21:02,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:21:02,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:21:02,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:02" (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 02:21:02,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:21:02,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:21:02,796 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:21:02,796 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:21:02,796 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:21:02,796 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:21:02,796 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:21:02,796 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:21:02,796 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:21:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:21:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:21:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:21:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:21:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:21:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:21:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:21:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:21:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:21:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:21:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:21:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:21:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:21:02,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:21:02,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:21:03,588 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:21:03,589 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:21:03,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:21:03 BoogieIcfgContainer [2020-10-15 02:21:03,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:21:03,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:21:03,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:21:03,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:21:03,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:21:02" (1/3) ... [2020-10-15 02:21:03,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b260d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:21:03, skipping insertion in model container [2020-10-15 02:21:03,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:02" (2/3) ... [2020-10-15 02:21:03,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b260d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:21:03, skipping insertion in model container [2020-10-15 02:21:03,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:21:03" (3/3) ... [2020-10-15 02:21:03,603 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.ufo.BOUNDED-6.pals.c [2020-10-15 02:21:03,611 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:21:03,618 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:21:03,631 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:21:03,656 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:21:03,656 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:21:03,656 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:21:03,656 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:21:03,657 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:21:03,657 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:21:03,657 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:21:03,657 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:21:03,678 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2020-10-15 02:21:03,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-15 02:21:03,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:03,690 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] [2020-10-15 02:21:03,690 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:03,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:03,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1364421405, now seen corresponding path program 1 times [2020-10-15 02:21:03,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:03,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1752023720] [2020-10-15 02:21:03,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:04,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:04,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:04,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 02:21:04,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:04,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-10-15 02:21:04,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:04,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:04,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:04,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-15 02:21:04,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:04,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:21:04,585 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:04,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:04,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:04,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:04,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:04,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:04,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:21:04,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:04,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:04,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:04,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:04,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:04,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:04,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:04,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:04,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:04,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:21:04,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:04,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 02:21:04,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:04,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:04,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:04,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:04,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:04,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:04,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:21:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:04,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:04,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:04,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:04,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:04,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:04,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:04,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:04,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:04,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:04,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:04,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:04,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:21:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:04,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:04,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:04,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:04,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:04,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:21:04,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:04,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:04,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:04,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:04,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:04,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:04,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:21:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:04,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:04,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:04,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:04,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:04,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:21:04,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:04,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:04,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:04,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:04,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:04,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:04,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:21:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:04,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:04,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:04,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:04,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:04,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:21:04,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:04,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:04,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:04,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:04,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:04,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:04,860 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 02:21:04,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1752023720] [2020-10-15 02:21:04,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:04,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 02:21:04,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197813386] [2020-10-15 02:21:04,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 02:21:04,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:04,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 02:21:04,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:21:04,910 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 6 states. [2020-10-15 02:21:05,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:05,892 INFO L93 Difference]: Finished difference Result 258 states and 411 transitions. [2020-10-15 02:21:05,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 02:21:05,894 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-10-15 02:21:05,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:05,907 INFO L225 Difference]: With dead ends: 258 [2020-10-15 02:21:05,907 INFO L226 Difference]: Without dead ends: 162 [2020-10-15 02:21:05,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:21:05,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-15 02:21:05,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 150. [2020-10-15 02:21:05,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-15 02:21:05,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 243 transitions. [2020-10-15 02:21:05,968 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 243 transitions. Word has length 58 [2020-10-15 02:21:05,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:05,968 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 243 transitions. [2020-10-15 02:21:05,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 02:21:05,969 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 243 transitions. [2020-10-15 02:21:05,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-15 02:21:05,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:05,972 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] [2020-10-15 02:21:05,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:21:05,973 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:05,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:05,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1292034847, now seen corresponding path program 1 times [2020-10-15 02:21:05,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:05,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297781442] [2020-10-15 02:21:05,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:06,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:06,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:06,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 02:21:06,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:06,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 502 [2020-10-15 02:21:06,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:06,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:06,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:21:06,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 02:21:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:21:06,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:06,693 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:06,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:06,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:06,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:06,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:06,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:06,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:21:06,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:06,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:06,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:06,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:06,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:06,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:06,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:06,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:06,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:06,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:21:06,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:06,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-15 02:21:06,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:06,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:06,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:21:06,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:06,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 02:21:06,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:06,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:21:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:06,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:06,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:06,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:06,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:06,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:21:06,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:06,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:06,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:06,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:06,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:06,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:06,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:21:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:06,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:06,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:06,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:06,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:06,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:21:06,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:06,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:06,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:06,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:06,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:06,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:21:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:06,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:06,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:06,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:06,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:06,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:21:06,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:06,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:06,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:06,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:06,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:06,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:06,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:21:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:06,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:06,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:06,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:06,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:06,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:21:06,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:06,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:06,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:06,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:06,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:06,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:06,932 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 02:21:06,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297781442] [2020-10-15 02:21:06,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:06,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:21:06,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145796229] [2020-10-15 02:21:06,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:21:06,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:06,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:21:06,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:21:06,937 INFO L87 Difference]: Start difference. First operand 150 states and 243 transitions. Second operand 10 states. [2020-10-15 02:21:07,317 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:21:07,476 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:21:08,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:08,633 INFO L93 Difference]: Finished difference Result 262 states and 414 transitions. [2020-10-15 02:21:08,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 02:21:08,634 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2020-10-15 02:21:08,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:08,639 INFO L225 Difference]: With dead ends: 262 [2020-10-15 02:21:08,639 INFO L226 Difference]: Without dead ends: 171 [2020-10-15 02:21:08,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:21:08,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-15 02:21:08,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 150. [2020-10-15 02:21:08,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-15 02:21:08,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2020-10-15 02:21:08,664 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 216 transitions. Word has length 58 [2020-10-15 02:21:08,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:08,665 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 216 transitions. [2020-10-15 02:21:08,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:21:08,665 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 216 transitions. [2020-10-15 02:21:08,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-15 02:21:08,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:08,668 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] [2020-10-15 02:21:08,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:21:08,669 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:08,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:08,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1402954698, now seen corresponding path program 1 times [2020-10-15 02:21:08,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:08,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1029168441] [2020-10-15 02:21:08,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:08,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:08,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:08,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:10,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:13,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:13,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-15 02:21:13,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:21:13,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-15 02:21:13,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:13,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:13,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:21:13,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-15 02:21:13,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:21:13,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:13,897 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:13,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:13,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:13,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:13,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:13,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:13,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:21:13,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:13,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:13,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:13,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:13,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:13,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:13,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:13,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:13,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-15 02:21:13,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:13,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:13,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:13,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:13,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:21:13,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:14,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:21:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:14,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:14,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:14,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:14,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:14,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:14,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:14,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:14,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:14,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:14,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:14,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:21:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:14,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:14,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:14,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:14,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-15 02:21:14,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:14,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:14,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:14,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:14,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:14,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 02:21:14,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:21:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:14,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:14,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:14,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:14,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:21:14,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:14,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:14,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:21:14,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:21:14,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:21:14,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:14,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:21:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:14,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:14,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:14,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:14,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:14,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:14,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:14,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:14,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:14,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:14,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:14,190 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 02:21:14,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1029168441] [2020-10-15 02:21:14,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:14,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:21:14,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13237087] [2020-10-15 02:21:14,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:21:14,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:14,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:21:14,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:21:14,192 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. Second operand 9 states. [2020-10-15 02:21:14,357 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:21:15,845 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:21:16,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:16,027 INFO L93 Difference]: Finished difference Result 342 states and 512 transitions. [2020-10-15 02:21:16,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:21:16,028 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-10-15 02:21:16,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:16,033 INFO L225 Difference]: With dead ends: 342 [2020-10-15 02:21:16,033 INFO L226 Difference]: Without dead ends: 257 [2020-10-15 02:21:16,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:21:16,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-10-15 02:21:16,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 228. [2020-10-15 02:21:16,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-15 02:21:16,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 337 transitions. [2020-10-15 02:21:16,064 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 337 transitions. Word has length 84 [2020-10-15 02:21:16,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:16,065 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 337 transitions. [2020-10-15 02:21:16,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:21:16,065 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 337 transitions. [2020-10-15 02:21:16,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-15 02:21:16,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:16,069 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] [2020-10-15 02:21:16,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:21:16,070 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:16,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:16,070 INFO L82 PathProgramCache]: Analyzing trace with hash 274313221, now seen corresponding path program 1 times [2020-10-15 02:21:16,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:16,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114006563] [2020-10-15 02:21:16,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:16,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:16,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:16,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:16,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:17,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 02:21:21,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:21:21,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 02:21:21,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:21,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:21:21,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 02:21:21,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:21,311 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:21,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:21,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:21,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:21,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:21:21,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:21,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:21,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:21,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:21:21,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:21,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:21,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:21,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-15 02:21:21,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:21:21,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:21,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:21:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:21,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:21,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:21,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:21:21,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:21,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:21,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:21,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:21,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:21:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:21,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:21,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:21,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:21:21,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:21,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:21,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:21,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:21,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:21:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:21,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:21:21,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:21,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:21:21,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:21,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:21:21,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:21:21,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:21,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:21:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:21,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:21,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:21,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:21,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:21,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:21,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:21,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:21,670 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 02:21:21,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114006563] [2020-10-15 02:21:21,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:21,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:21:21,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434486530] [2020-10-15 02:21:21,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:21:21,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:21,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:21:21,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:21:21,673 INFO L87 Difference]: Start difference. First operand 228 states and 337 transitions. Second operand 9 states. [2020-10-15 02:21:21,840 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:21,995 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:21:22,186 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:21:22,355 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:23,079 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:24,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:24,685 INFO L93 Difference]: Finished difference Result 698 states and 1043 transitions. [2020-10-15 02:21:24,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:21:24,685 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 86 [2020-10-15 02:21:24,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:24,689 INFO L225 Difference]: With dead ends: 698 [2020-10-15 02:21:24,689 INFO L226 Difference]: Without dead ends: 496 [2020-10-15 02:21:24,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:21:24,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-15 02:21:24,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 451. [2020-10-15 02:21:24,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2020-10-15 02:21:24,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 660 transitions. [2020-10-15 02:21:24,738 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 660 transitions. Word has length 86 [2020-10-15 02:21:24,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:24,739 INFO L479 AbstractCegarLoop]: Abstraction has 451 states and 660 transitions. [2020-10-15 02:21:24,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:21:24,739 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 660 transitions. [2020-10-15 02:21:24,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-15 02:21:24,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:24,742 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] [2020-10-15 02:21:24,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:21:24,743 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:24,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:24,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1376959237, now seen corresponding path program 1 times [2020-10-15 02:21:24,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:24,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512713722] [2020-10-15 02:21:24,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:24,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:24,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:24,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:24,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:25,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:27,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:29,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:29,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 02:21:29,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:21:29,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:21:29,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:29,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:29,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:21:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 02:21:29,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:29,978 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:29,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:29,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:29,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:29,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:29,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:29,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:29,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:29,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:29,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:29,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:29,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:29,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:29,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:30,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:30,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:30,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:30,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:30,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-15 02:21:30,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:30,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:30,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:30,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:30,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:21:30,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:30,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:21:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:30,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:30,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:30,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:30,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:30,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:21:30,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:30,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:30,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:30,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:30,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:30,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:30,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:21:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:30,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:30,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:30,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:30,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:30,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:21:30,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:30,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:30,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:30,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:30,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:30,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:30,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:21:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:30,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:30,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:30,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:21:30,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:30,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:21:30,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:30,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:30,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:30,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:21:30,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:21:30,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:30,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:21:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:30,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:30,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:30,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:30,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:30,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:21:30,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:30,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:30,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:30,401 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 02:21:30,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512713722] [2020-10-15 02:21:30,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:30,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:21:30,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630635373] [2020-10-15 02:21:30,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:21:30,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:30,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:21:30,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:21:30,404 INFO L87 Difference]: Start difference. First operand 451 states and 660 transitions. Second operand 9 states. [2020-10-15 02:21:30,574 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:30,759 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-15 02:21:31,000 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:21:31,320 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2020-10-15 02:21:32,105 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:34,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:34,065 INFO L93 Difference]: Finished difference Result 1638 states and 2393 transitions. [2020-10-15 02:21:34,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:21:34,066 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 86 [2020-10-15 02:21:34,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:34,074 INFO L225 Difference]: With dead ends: 1638 [2020-10-15 02:21:34,074 INFO L226 Difference]: Without dead ends: 1219 [2020-10-15 02:21:34,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:21:34,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2020-10-15 02:21:34,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1122. [2020-10-15 02:21:34,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1122 states. [2020-10-15 02:21:34,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1615 transitions. [2020-10-15 02:21:34,158 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1615 transitions. Word has length 86 [2020-10-15 02:21:34,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:34,158 INFO L479 AbstractCegarLoop]: Abstraction has 1122 states and 1615 transitions. [2020-10-15 02:21:34,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:21:34,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1615 transitions. [2020-10-15 02:21:34,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-15 02:21:34,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:34,163 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] [2020-10-15 02:21:34,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:21:34,163 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:34,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:34,163 INFO L82 PathProgramCache]: Analyzing trace with hash 808239212, now seen corresponding path program 1 times [2020-10-15 02:21:34,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:34,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821026760] [2020-10-15 02:21:34,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:34,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:34,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:34,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:34,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:34,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:38,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:39,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:39,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:21:39,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:21:39,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 02:21:39,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:39,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:39,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:39,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:21:39,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-15 02:21:39,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:39,356 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:39,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:39,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:39,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:39,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:39,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:39,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:21:39,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:39,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:39,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:39,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:39,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:39,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:39,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:39,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:39,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:39,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:39,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:39,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-15 02:21:39,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:39,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:39,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:39,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:39,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:21:39,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:39,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:21:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:39,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:39,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:39,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:39,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:39,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:21:39,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:39,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:39,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:39,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:39,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:39,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:39,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:21:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:39,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:39,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:39,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:39,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:39,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:21:39,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:39,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:39,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:39,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:39,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:39,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:39,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:21:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:39,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:39,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:39,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:21:39,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:39,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:21:39,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:39,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:39,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:39,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:21:39,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:21:39,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:39,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-15 02:21:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:39,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:39,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:39,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:39,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:39,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:21:39,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:39,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:39,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:39,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:39,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:39,616 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 02:21:39,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821026760] [2020-10-15 02:21:39,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:39,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:21:39,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044262913] [2020-10-15 02:21:39,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:21:39,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:39,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:21:39,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:21:39,621 INFO L87 Difference]: Start difference. First operand 1122 states and 1615 transitions. Second operand 9 states. [2020-10-15 02:21:39,768 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:39,918 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:21:40,087 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:40,241 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:21:40,980 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:42,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:42,701 INFO L93 Difference]: Finished difference Result 3274 states and 4748 transitions. [2020-10-15 02:21:42,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:21:42,702 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2020-10-15 02:21:42,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:42,715 INFO L225 Difference]: With dead ends: 3274 [2020-10-15 02:21:42,716 INFO L226 Difference]: Without dead ends: 2181 [2020-10-15 02:21:42,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:21:42,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2020-10-15 02:21:42,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2013. [2020-10-15 02:21:42,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2013 states. [2020-10-15 02:21:42,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2013 states to 2013 states and 2868 transitions. [2020-10-15 02:21:42,880 INFO L78 Accepts]: Start accepts. Automaton has 2013 states and 2868 transitions. Word has length 87 [2020-10-15 02:21:42,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:42,881 INFO L479 AbstractCegarLoop]: Abstraction has 2013 states and 2868 transitions. [2020-10-15 02:21:42,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:21:42,882 INFO L276 IsEmpty]: Start isEmpty. Operand 2013 states and 2868 transitions. [2020-10-15 02:21:42,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-15 02:21:42,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:42,886 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] [2020-10-15 02:21:42,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:21:42,887 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:42,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:42,887 INFO L82 PathProgramCache]: Analyzing trace with hash -554757119, now seen corresponding path program 1 times [2020-10-15 02:21:42,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:42,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770882457] [2020-10-15 02:21:42,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:42,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:42,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:42,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:43,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:43,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:44,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:47,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:47,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:21:47,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:21:47,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-15 02:21:47,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:47,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:47,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:47,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:21:47,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 02:21:47,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:48,092 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:48,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:48,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:48,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:48,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:48,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:48,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:21:48,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:48,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:48,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:48,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:48,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:48,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:48,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:48,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:48,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:48,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:48,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:48,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:21:48,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:21:48,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-15 02:21:48,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:48,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:48,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:48,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:21:48,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:21:48,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:48,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 02:21:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:48,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:48,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:48,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:48,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:48,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:21:48,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:48,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:48,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:48,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:48,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:48,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:48,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:21:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:48,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:48,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:48,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:48,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:48,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:21:48,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:48,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:48,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:48,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:48,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:48,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:48,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-15 02:21:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:48,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:48,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:48,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:21:48,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:48,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:21:48,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:48,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:48,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:48,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:21:48,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:21:48,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:48,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-15 02:21:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:48,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:48,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:48,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:48,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:48,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:48,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:48,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:48,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:48,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:48,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:48,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:48,473 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 02:21:48,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770882457] [2020-10-15 02:21:48,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:48,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:21:48,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722591616] [2020-10-15 02:21:48,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:21:48,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:48,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:21:48,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:21:48,484 INFO L87 Difference]: Start difference. First operand 2013 states and 2868 transitions. Second operand 10 states. [2020-10-15 02:21:48,696 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:49,008 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:49,292 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:21:49,496 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:21:49,702 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:21:49,866 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:21:50,064 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:21:50,248 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:21:53,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:53,667 INFO L93 Difference]: Finished difference Result 6888 states and 10029 transitions. [2020-10-15 02:21:53,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:21:53,668 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-10-15 02:21:53,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:53,692 INFO L225 Difference]: With dead ends: 6888 [2020-10-15 02:21:53,693 INFO L226 Difference]: Without dead ends: 5132 [2020-10-15 02:21:53,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:21:53,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5132 states. [2020-10-15 02:21:54,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5132 to 4790. [2020-10-15 02:21:54,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4790 states. [2020-10-15 02:21:54,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4790 states to 4790 states and 6908 transitions. [2020-10-15 02:21:54,029 INFO L78 Accepts]: Start accepts. Automaton has 4790 states and 6908 transitions. Word has length 87 [2020-10-15 02:21:54,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:54,030 INFO L479 AbstractCegarLoop]: Abstraction has 4790 states and 6908 transitions. [2020-10-15 02:21:54,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:21:54,030 INFO L276 IsEmpty]: Start isEmpty. Operand 4790 states and 6908 transitions. [2020-10-15 02:21:54,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-15 02:21:54,040 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:54,041 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] [2020-10-15 02:21:54,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:21:54,041 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:54,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:54,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1655843498, now seen corresponding path program 1 times [2020-10-15 02:21:54,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:54,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848352312] [2020-10-15 02:21:54,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:54,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:54,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:54,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:54,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:57,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:57,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:21:57,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:21:57,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3101 [2020-10-15 02:21:57,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:57,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:57,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:57,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:21:57,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 02:21:57,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:57,408 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:57,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:57,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:57,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:57,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:57,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:57,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:57,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:57,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:57,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:57,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:57,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:57,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:57,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:57,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:57,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:57,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:57,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:57,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-15 02:21:57,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:57,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:57,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:57,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:57,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:21:57,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:57,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:21:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:57,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:57,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:57,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:57,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:57,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:21:57,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:57,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:57,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:57,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:57,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:57,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:57,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:21:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:57,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:57,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:57,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:57,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:57,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:21:57,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:57,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:57,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:57,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:21:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:57,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:57,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:57,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:21:57,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:57,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:21:57,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:57,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:57,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:57,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:21:57,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:21:57,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:57,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:21:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:57,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:57,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:57,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:57,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:57,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:21:57,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:57,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:57,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:57,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:57,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:57,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:57,665 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 02:21:57,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848352312] [2020-10-15 02:21:57,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:57,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:21:57,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270850151] [2020-10-15 02:21:57,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:21:57,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:57,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:21:57,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:21:57,667 INFO L87 Difference]: Start difference. First operand 4790 states and 6908 transitions. Second operand 9 states. [2020-10-15 02:21:57,837 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:58,020 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-15 02:21:58,419 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2020-10-15 02:21:58,596 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:21:59,300 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:01,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:01,681 INFO L93 Difference]: Finished difference Result 6618 states and 9452 transitions. [2020-10-15 02:22:01,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:22:01,682 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-10-15 02:22:01,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:01,705 INFO L225 Difference]: With dead ends: 6618 [2020-10-15 02:22:01,705 INFO L226 Difference]: Without dead ends: 4995 [2020-10-15 02:22:01,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:22:01,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4995 states. [2020-10-15 02:22:01,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4995 to 4146. [2020-10-15 02:22:01,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4146 states. [2020-10-15 02:22:01,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4146 states to 4146 states and 5893 transitions. [2020-10-15 02:22:01,963 INFO L78 Accepts]: Start accepts. Automaton has 4146 states and 5893 transitions. Word has length 88 [2020-10-15 02:22:01,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:01,963 INFO L479 AbstractCegarLoop]: Abstraction has 4146 states and 5893 transitions. [2020-10-15 02:22:01,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:22:01,964 INFO L276 IsEmpty]: Start isEmpty. Operand 4146 states and 5893 transitions. [2020-10-15 02:22:01,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-15 02:22:01,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:01,973 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] [2020-10-15 02:22:01,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:22:01,973 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:01,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:01,974 INFO L82 PathProgramCache]: Analyzing trace with hash -268517769, now seen corresponding path program 1 times [2020-10-15 02:22:01,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:01,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492115252] [2020-10-15 02:22:01,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:02,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:02,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:02,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:02,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:02,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:04,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:07,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:07,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:22:07,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:22:07,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:22:07,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:07,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:22:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:22:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 02:22:07,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:07,200 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:07,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:07,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:07,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:07,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:07,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:07,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:22:07,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:07,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:07,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:07,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:07,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:22:07,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:07,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:07,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:07,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:07,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:22:07,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:07,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 02:22:07,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:07,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:07,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:07,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:07,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:22:07,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:07,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:22:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:07,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:07,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:07,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:07,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:07,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:22:07,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:07,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:07,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:07,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:07,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:07,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:07,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:22:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:07,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:07,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:07,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:07,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:07,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:22:07,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:07,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:07,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:07,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:07,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:07,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:07,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:22:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:07,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:07,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:07,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:07,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:07,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-15 02:22:07,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:07,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:07,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:22:07,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:07,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:22:07,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:07,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:22:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:07,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:07,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:07,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:07,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:07,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:07,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:07,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:07,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:07,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:07,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:07,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:07,568 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 02:22:07,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492115252] [2020-10-15 02:22:07,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:07,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:22:07,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256447464] [2020-10-15 02:22:07,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:22:07,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:07,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:22:07,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:22:07,571 INFO L87 Difference]: Start difference. First operand 4146 states and 5893 transitions. Second operand 14 states. [2020-10-15 02:22:07,911 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:08,060 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:08,497 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:22:08,807 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:22:10,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:10,706 INFO L93 Difference]: Finished difference Result 6317 states and 8999 transitions. [2020-10-15 02:22:10,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:22:10,706 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 88 [2020-10-15 02:22:10,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:10,731 INFO L225 Difference]: With dead ends: 6317 [2020-10-15 02:22:10,731 INFO L226 Difference]: Without dead ends: 5536 [2020-10-15 02:22:10,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:22:10,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5536 states. [2020-10-15 02:22:11,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5536 to 4917. [2020-10-15 02:22:11,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4917 states. [2020-10-15 02:22:11,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4917 states to 4917 states and 7025 transitions. [2020-10-15 02:22:11,019 INFO L78 Accepts]: Start accepts. Automaton has 4917 states and 7025 transitions. Word has length 88 [2020-10-15 02:22:11,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:11,020 INFO L479 AbstractCegarLoop]: Abstraction has 4917 states and 7025 transitions. [2020-10-15 02:22:11,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:22:11,020 INFO L276 IsEmpty]: Start isEmpty. Operand 4917 states and 7025 transitions. [2020-10-15 02:22:11,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-15 02:22:11,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:11,032 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] [2020-10-15 02:22:11,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:22:11,033 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:11,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:11,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1856865671, now seen corresponding path program 1 times [2020-10-15 02:22:11,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:11,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709180526] [2020-10-15 02:22:11,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:11,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:11,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:11,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:12,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:14,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:14,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:22:14,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:22:14,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3127 [2020-10-15 02:22:14,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:14,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:14,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:14,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-15 02:22:14,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-15 02:22:14,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:14,360 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:14,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:14,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:14,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:14,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:14,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:14,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:22:14,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:14,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:14,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:14,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:14,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:14,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:14,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:14,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:14,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:14,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:22:14,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:14,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:22:14,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:14,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:14,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:14,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:14,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:22:14,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:14,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:22:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:14,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:14,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:14,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:14,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:14,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:14,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:14,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:14,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:14,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:14,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:14,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:14,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:22:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:14,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:14,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:14,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:14,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:14,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:22:14,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:14,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:14,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:14,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:14,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:22:14,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:14,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:22:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:14,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:14,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:14,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:14,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:14,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:22:14,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:14,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:14,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:14,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:22:14,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:14,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:14,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:22:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:14,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:14,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:14,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:14,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:14,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:14,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:14,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:14,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:14,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:14,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:14,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:14,601 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 02:22:14,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709180526] [2020-10-15 02:22:14,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:14,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:22:14,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717616696] [2020-10-15 02:22:14,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:22:14,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:14,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:22:14,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:22:14,606 INFO L87 Difference]: Start difference. First operand 4917 states and 7025 transitions. Second operand 9 states. [2020-10-15 02:22:14,756 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:22:16,464 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:22:16,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:16,686 INFO L93 Difference]: Finished difference Result 11371 states and 16337 transitions. [2020-10-15 02:22:16,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:22:16,687 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-10-15 02:22:16,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:16,723 INFO L225 Difference]: With dead ends: 11371 [2020-10-15 02:22:16,724 INFO L226 Difference]: Without dead ends: 8074 [2020-10-15 02:22:16,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:22:16,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8074 states. [2020-10-15 02:22:17,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8074 to 7491. [2020-10-15 02:22:17,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7491 states. [2020-10-15 02:22:17,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7491 states to 7491 states and 10688 transitions. [2020-10-15 02:22:17,174 INFO L78 Accepts]: Start accepts. Automaton has 7491 states and 10688 transitions. Word has length 88 [2020-10-15 02:22:17,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:17,174 INFO L479 AbstractCegarLoop]: Abstraction has 7491 states and 10688 transitions. [2020-10-15 02:22:17,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:22:17,175 INFO L276 IsEmpty]: Start isEmpty. Operand 7491 states and 10688 transitions. [2020-10-15 02:22:17,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-15 02:22:17,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:17,186 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] [2020-10-15 02:22:17,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:22:17,186 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:17,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:17,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1139258861, now seen corresponding path program 1 times [2020-10-15 02:22:17,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:17,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [675684864] [2020-10-15 02:22:17,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:17,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:17,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:17,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:17,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:17,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:18,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:22,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:22,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-15 02:22:22,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:22:22,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:22:22,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:22,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:22,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:22,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:22:22,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:22:22,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:22,359 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:22,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:22,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:22,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:22,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:22,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:22,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:22:22,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:22,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:22,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:22,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:22,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:22,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:22,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:22,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:22,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:22,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:22,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:22,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:22:22,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:22:22,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-15 02:22:22,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:22,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:22,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:22,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:22:22,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 02:22:22,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:22,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 02:22:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:22,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:22,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:22,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:22,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:22,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:22:22,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:22,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:22,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:22,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:22,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:22,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:22,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:22:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:22,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:22,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:22,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:22:22,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:22,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:22:22,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:22,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:22,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:22,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:22:22,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:22:22,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:22,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-15 02:22:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:22,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:22,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:22,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:22:22,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:22,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:22,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:22,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:22,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:22,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:22:22,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:22,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:22,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:22:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:22,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:22,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:22,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:22,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:22,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:22,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:22,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:22,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:22,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:22,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:22,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:22,629 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 02:22:22,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [675684864] [2020-10-15 02:22:22,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:22,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:22:22,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742960631] [2020-10-15 02:22:22,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:22:22,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:22,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:22:22,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:22:22,632 INFO L87 Difference]: Start difference. First operand 7491 states and 10688 transitions. Second operand 10 states. [2020-10-15 02:22:22,812 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:23,093 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:22:23,268 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:22:23,465 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:23,681 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:22:23,858 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:22:27,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:27,603 INFO L93 Difference]: Finished difference Result 19466 states and 27986 transitions. [2020-10-15 02:22:27,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:22:27,609 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2020-10-15 02:22:27,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:27,662 INFO L225 Difference]: With dead ends: 19466 [2020-10-15 02:22:27,663 INFO L226 Difference]: Without dead ends: 12042 [2020-10-15 02:22:27,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:22:27,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12042 states. [2020-10-15 02:22:28,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12042 to 11456. [2020-10-15 02:22:28,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11456 states. [2020-10-15 02:22:28,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11456 states to 11456 states and 16249 transitions. [2020-10-15 02:22:28,559 INFO L78 Accepts]: Start accepts. Automaton has 11456 states and 16249 transitions. Word has length 90 [2020-10-15 02:22:28,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:28,559 INFO L479 AbstractCegarLoop]: Abstraction has 11456 states and 16249 transitions. [2020-10-15 02:22:28,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:22:28,560 INFO L276 IsEmpty]: Start isEmpty. Operand 11456 states and 16249 transitions. [2020-10-15 02:22:28,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-15 02:22:28,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:28,577 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] [2020-10-15 02:22:28,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:22:28,578 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:28,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:28,578 INFO L82 PathProgramCache]: Analyzing trace with hash -969508486, now seen corresponding path program 1 times [2020-10-15 02:22:28,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:28,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1480749364] [2020-10-15 02:22:28,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:28,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:28,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:28,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:28,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:28,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:29,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:33,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:33,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-15 02:22:33,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:22:33,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:22:33,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:33,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:33,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:33,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:22:33,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-15 02:22:33,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:33,781 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:33,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:33,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:33,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:33,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:33,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:33,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:33,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:33,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:33,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:33,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:33,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:33,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:33,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:33,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:33,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:33,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:22:33,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:33,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-15 02:22:33,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:33,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:33,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:33,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:33,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:22:33,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:33,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:22:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:33,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:33,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:33,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:34,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:34,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:34,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:34,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:34,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:34,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:34,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:34,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:34,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:22:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:34,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:34,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:34,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:22:34,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:34,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:22:34,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:34,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:34,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:34,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:22:34,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:22:34,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:34,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-15 02:22:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:34,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:34,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:34,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:34,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:34,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:34,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:34,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:34,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:34,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:22:34,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:34,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:34,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:22:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:34,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:34,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:34,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:34,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:34,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:34,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:34,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:34,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:34,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:34,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:34,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:34,109 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 02:22:34,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1480749364] [2020-10-15 02:22:34,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:34,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:22:34,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753558521] [2020-10-15 02:22:34,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:22:34,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:34,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:22:34,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:22:34,111 INFO L87 Difference]: Start difference. First operand 11456 states and 16249 transitions. Second operand 9 states. [2020-10-15 02:22:34,279 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:34,469 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-15 02:22:34,665 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:22:35,290 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:38,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:38,023 INFO L93 Difference]: Finished difference Result 32983 states and 47489 transitions. [2020-10-15 02:22:38,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:22:38,024 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-10-15 02:22:38,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:38,110 INFO L225 Difference]: With dead ends: 32983 [2020-10-15 02:22:38,110 INFO L226 Difference]: Without dead ends: 22862 [2020-10-15 02:22:38,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2020-10-15 02:22:38,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22862 states. [2020-10-15 02:22:39,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22862 to 22519. [2020-10-15 02:22:39,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22519 states. [2020-10-15 02:22:39,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22519 states to 22519 states and 31691 transitions. [2020-10-15 02:22:39,405 INFO L78 Accepts]: Start accepts. Automaton has 22519 states and 31691 transitions. Word has length 91 [2020-10-15 02:22:39,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:39,405 INFO L479 AbstractCegarLoop]: Abstraction has 22519 states and 31691 transitions. [2020-10-15 02:22:39,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:22:39,406 INFO L276 IsEmpty]: Start isEmpty. Operand 22519 states and 31691 transitions. [2020-10-15 02:22:39,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-15 02:22:39,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:39,431 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] [2020-10-15 02:22:39,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:22:39,431 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:39,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:39,432 INFO L82 PathProgramCache]: Analyzing trace with hash 2120415046, now seen corresponding path program 1 times [2020-10-15 02:22:39,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:39,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377002425] [2020-10-15 02:22:39,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:39,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:39,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:39,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:39,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:39,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:43,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:43,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-15 02:22:43,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:22:43,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4029 [2020-10-15 02:22:43,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:43,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:22:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:22:43,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:43,644 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:43,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:43,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:43,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:43,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:43,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:43,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:43,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:43,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:43,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:43,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:43,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:43,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:43,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:43,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:43,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:43,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:43,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-15 02:22:43,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:22:43,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:22:43,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:43,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:43,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:43,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:43,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:22:43,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:43,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:22:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:43,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:43,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:43,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:43,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:43,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:22:43,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:43,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:43,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:43,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:43,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:43,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:43,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-15 02:22:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:43,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:43,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:43,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:22:43,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:43,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:43,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:43,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:43,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:43,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:22:43,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:22:43,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:43,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:22:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:43,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:43,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:43,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:22:43,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:43,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:22:43,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:43,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:43,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:43,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:22:43,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:43,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:43,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:22:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:43,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:43,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:43,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:43,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:43,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:43,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:43,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:43,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:43,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:43,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:43,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:43,844 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 02:22:43,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [377002425] [2020-10-15 02:22:43,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:43,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:22:43,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28220754] [2020-10-15 02:22:43,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:22:43,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:43,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:22:43,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:22:43,846 INFO L87 Difference]: Start difference. First operand 22519 states and 31691 transitions. Second operand 9 states. [2020-10-15 02:22:44,024 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:44,180 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:22:44,384 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:22:44,550 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:45,068 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:47,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:47,551 INFO L93 Difference]: Finished difference Result 41873 states and 58982 transitions. [2020-10-15 02:22:47,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:22:47,552 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-10-15 02:22:47,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:47,620 INFO L225 Difference]: With dead ends: 41873 [2020-10-15 02:22:47,620 INFO L226 Difference]: Without dead ends: 20730 [2020-10-15 02:22:47,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:22:47,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20730 states. [2020-10-15 02:22:48,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20730 to 20294. [2020-10-15 02:22:48,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20294 states. [2020-10-15 02:22:48,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20294 states to 20294 states and 28432 transitions. [2020-10-15 02:22:48,758 INFO L78 Accepts]: Start accepts. Automaton has 20294 states and 28432 transitions. Word has length 91 [2020-10-15 02:22:48,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:48,758 INFO L479 AbstractCegarLoop]: Abstraction has 20294 states and 28432 transitions. [2020-10-15 02:22:48,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:22:48,759 INFO L276 IsEmpty]: Start isEmpty. Operand 20294 states and 28432 transitions. [2020-10-15 02:22:48,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 02:22:48,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:48,778 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] [2020-10-15 02:22:48,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:22:48,778 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:48,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:48,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1198274248, now seen corresponding path program 1 times [2020-10-15 02:22:48,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:48,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169264521] [2020-10-15 02:22:48,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:48,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:48,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:48,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:48,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:49,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:49,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:53,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:53,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-15 02:22:53,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:22:53,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:22:53,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:53,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:22:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:22:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:22:53,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:53,978 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:53,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:53,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:53,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:53,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:53,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:53,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:22:53,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:53,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:53,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:53,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:53,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:22:53,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:54,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:54,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:54,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:54,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:22:54,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:54,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-15 02:22:54,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:54,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:54,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:54,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:54,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:22:54,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:54,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:22:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:54,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:54,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:54,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:54,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:54,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:22:54,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:54,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:54,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:54,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:54,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:54,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:54,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:22:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:54,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:54,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:54,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:54,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:54,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:22:54,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:54,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:54,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:22:54,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:54,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:22:54,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:54,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:22:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:54,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:54,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:54,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:54,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:54,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:54,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:54,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:54,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:54,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:22:54,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:54,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:54,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:22:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:54,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:54,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:54,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:54,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:54,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:22:54,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:54,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:54,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:54,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:54,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:54,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:54,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:54,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169264521] [2020-10-15 02:22:54,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:54,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:22:54,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561218178] [2020-10-15 02:22:54,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:22:54,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:54,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:22:54,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:22:54,272 INFO L87 Difference]: Start difference. First operand 20294 states and 28432 transitions. Second operand 14 states. [2020-10-15 02:22:54,466 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:54,625 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:55,018 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:22:55,327 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:22:56,940 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-15 02:22:57,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:57,998 INFO L93 Difference]: Finished difference Result 28904 states and 40605 transitions. [2020-10-15 02:22:57,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:22:57,998 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 92 [2020-10-15 02:22:57,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:58,060 INFO L225 Difference]: With dead ends: 28904 [2020-10-15 02:22:58,061 INFO L226 Difference]: Without dead ends: 23100 [2020-10-15 02:22:58,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:22:58,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23100 states. [2020-10-15 02:22:59,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23100 to 20781. [2020-10-15 02:22:59,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20781 states. [2020-10-15 02:22:59,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20781 states to 20781 states and 29011 transitions. [2020-10-15 02:22:59,078 INFO L78 Accepts]: Start accepts. Automaton has 20781 states and 29011 transitions. Word has length 92 [2020-10-15 02:22:59,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:59,079 INFO L479 AbstractCegarLoop]: Abstraction has 20781 states and 29011 transitions. [2020-10-15 02:22:59,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:22:59,079 INFO L276 IsEmpty]: Start isEmpty. Operand 20781 states and 29011 transitions. [2020-10-15 02:22:59,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 02:22:59,094 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:59,094 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] [2020-10-15 02:22:59,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 02:22:59,094 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:59,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:59,095 INFO L82 PathProgramCache]: Analyzing trace with hash 187929146, now seen corresponding path program 1 times [2020-10-15 02:22:59,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:59,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748558279] [2020-10-15 02:22:59,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:59,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:59,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:59,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:59,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:59,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:04,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:04,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-15 02:23:04,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:23:04,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 02:23:04,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:04,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:04,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:23:04,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:23:04,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-15 02:23:04,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:04,301 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:23:04,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:23:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:04,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:04,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:04,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:23:04,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:04,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:23:04,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:04,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:04,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:04,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:04,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:23:04,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:04,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:23:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:04,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:04,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:04,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:23:04,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:04,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:23:04,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:04,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:04,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:23:04,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:04,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:23:04,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:04,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:23:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:04,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:04,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:04,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:04,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:04,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:23:04,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:04,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:04,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:04,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:04,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:23:04,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:04,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:23:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:04,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:04,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:04,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:23:04,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:04,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:23:04,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:04,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:04,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:23:04,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:23:04,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:23:04,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:04,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:23:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:04,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:04,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:04,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:23:04,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:04,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:23:04,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:04,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:04,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:04,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:23:04,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:04,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:04,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:23:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:04,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:04,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:04,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:04,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:04,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:23:04,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:04,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:04,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:04,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:04,576 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 02:23:04,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748558279] [2020-10-15 02:23:04,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:23:04,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:23:04,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776890480] [2020-10-15 02:23:04,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:23:04,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:23:04,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:23:04,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:23:04,579 INFO L87 Difference]: Start difference. First operand 20781 states and 29011 transitions. Second operand 14 states. [2020-10-15 02:23:04,770 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:23:04,931 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:23:05,295 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:23:05,599 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:23:07,606 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-15 02:23:08,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:23:08,231 INFO L93 Difference]: Finished difference Result 31514 states and 44272 transitions. [2020-10-15 02:23:08,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:23:08,232 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 92 [2020-10-15 02:23:08,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:23:08,310 INFO L225 Difference]: With dead ends: 31514 [2020-10-15 02:23:08,310 INFO L226 Difference]: Without dead ends: 23272 [2020-10-15 02:23:08,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:23:08,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23272 states. [2020-10-15 02:23:09,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23272 to 20557. [2020-10-15 02:23:09,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20557 states. [2020-10-15 02:23:09,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20557 states to 20557 states and 28654 transitions. [2020-10-15 02:23:09,419 INFO L78 Accepts]: Start accepts. Automaton has 20557 states and 28654 transitions. Word has length 92 [2020-10-15 02:23:09,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:23:09,419 INFO L479 AbstractCegarLoop]: Abstraction has 20557 states and 28654 transitions. [2020-10-15 02:23:09,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:23:09,419 INFO L276 IsEmpty]: Start isEmpty. Operand 20557 states and 28654 transitions. [2020-10-15 02:23:09,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 02:23:09,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:23:09,431 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] [2020-10-15 02:23:09,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 02:23:09,431 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:23:09,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:23:09,431 INFO L82 PathProgramCache]: Analyzing trace with hash 2111157180, now seen corresponding path program 1 times [2020-10-15 02:23:09,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:23:09,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570874073] [2020-10-15 02:23:09,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:23:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:09,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:09,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:09,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:10,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:12,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:12,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-15 02:23:12,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:23:12,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3488 [2020-10-15 02:23:12,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:12,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:12,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:23:12,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-15 02:23:12,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 02:23:12,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:13,106 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:23:13,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:23:13,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:13,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:13,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:13,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:23:13,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:13,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:23:13,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:13,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:13,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:13,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:13,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:13,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:13,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:23:13,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:13,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:13,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:13,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:23:13,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:13,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-15 02:23:13,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:13,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:13,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:23:13,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:13,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:23:13,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:13,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:23:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:13,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:13,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:13,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:13,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:13,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:23:13,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:13,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:13,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:23:13,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:23:13,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:23:13,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:13,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:23:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:13,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:13,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:13,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:23:13,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:13,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:23:13,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:13,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:23:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:23:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:23:13,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:13,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:23:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:13,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:13,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:13,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:23:13,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:13,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:23:13,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:13,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:13,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:23:13,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:23:13,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:23:13,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:13,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:23:13,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:13,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:13,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:13,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:13,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:13,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:23:13,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:13,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:13,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:13,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:23:13,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:23:13,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:13,469 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 02:23:13,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570874073] [2020-10-15 02:23:13,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:23:13,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:23:13,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108438398] [2020-10-15 02:23:13,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:23:13,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:23:13,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:23:13,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:23:13,480 INFO L87 Difference]: Start difference. First operand 20557 states and 28654 transitions. Second operand 13 states. [2020-10-15 02:23:13,667 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:23:14,106 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:23:14,271 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:23:14,897 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:23:15,715 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 152 [2020-10-15 02:23:16,065 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-15 02:23:17,133 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2020-10-15 02:23:17,404 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-15 02:23:18,016 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-15 02:23:19,643 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-15 02:23:19,777 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2020-10-15 02:23:20,477 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-15 02:23:20,633 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-10-15 02:23:21,352 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-10-15 02:23:22,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:23:22,467 INFO L93 Difference]: Finished difference Result 69807 states and 99390 transitions. [2020-10-15 02:23:22,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-15 02:23:22,468 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 92 [2020-10-15 02:23:22,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:23:22,572 INFO L225 Difference]: With dead ends: 69807 [2020-10-15 02:23:22,572 INFO L226 Difference]: Without dead ends: 54519 [2020-10-15 02:23:22,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=355, Invalid=1127, Unknown=0, NotChecked=0, Total=1482 [2020-10-15 02:23:22,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54519 states. [2020-10-15 02:23:27,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54519 to 52392. [2020-10-15 02:23:27,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52392 states. [2020-10-15 02:23:27,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52392 states to 52392 states and 73814 transitions. [2020-10-15 02:23:27,354 INFO L78 Accepts]: Start accepts. Automaton has 52392 states and 73814 transitions. Word has length 92 [2020-10-15 02:23:27,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:23:27,354 INFO L479 AbstractCegarLoop]: Abstraction has 52392 states and 73814 transitions. [2020-10-15 02:23:27,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:23:27,354 INFO L276 IsEmpty]: Start isEmpty. Operand 52392 states and 73814 transitions. [2020-10-15 02:23:27,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 02:23:27,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:23:27,376 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] [2020-10-15 02:23:27,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 02:23:27,376 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:23:27,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:23:27,376 INFO L82 PathProgramCache]: Analyzing trace with hash 991840770, now seen corresponding path program 1 times [2020-10-15 02:23:27,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:23:27,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445465863] [2020-10-15 02:23:27,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:23:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:27,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:27,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:27,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:27,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:30,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:32,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:32,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 02:23:32,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:23:32,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:23:32,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:32,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:32,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:23:32,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-15 02:23:32,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:23:32,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:32,559 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:23:32,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:23:32,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:32,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:32,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:32,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:23:32,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:32,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:23:32,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:32,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:32,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:32,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:32,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:32,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:32,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:23:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:32,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:32,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:32,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:23:32,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:32,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:23:32,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:32,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:32,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:32,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:32,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:23:32,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:32,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:23:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:32,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:32,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:32,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:32,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:32,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:23:32,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:32,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:32,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:32,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:32,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:23:32,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:32,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:23:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:32,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:32,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:32,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:23:32,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:32,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:23:32,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:32,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:32,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:23:32,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:23:32,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:23:32,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:32,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:23:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:32,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:32,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:32,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:23:32,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:32,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:23:32,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:32,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:32,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:32,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:23:32,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:32,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:32,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:23:32,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:32,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:32,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:32,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:32,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:32,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:23:32,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:32,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:32,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:32,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:32,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:32,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:32,761 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 02:23:32,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1445465863] [2020-10-15 02:23:32,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:23:32,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:23:32,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203024830] [2020-10-15 02:23:32,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:23:32,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:23:32,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:23:32,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:23:32,763 INFO L87 Difference]: Start difference. First operand 52392 states and 73814 transitions. Second operand 9 states. [2020-10-15 02:23:32,929 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:23:33,615 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-15 02:23:35,971 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:23:37,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:23:37,113 INFO L93 Difference]: Finished difference Result 84663 states and 119060 transitions. [2020-10-15 02:23:37,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:23:37,114 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-10-15 02:23:37,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:23:37,248 INFO L225 Difference]: With dead ends: 84663 [2020-10-15 02:23:37,249 INFO L226 Difference]: Without dead ends: 53503 [2020-10-15 02:23:37,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:23:37,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53503 states. [2020-10-15 02:23:40,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53503 to 51056. [2020-10-15 02:23:40,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51056 states. [2020-10-15 02:23:40,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51056 states to 51056 states and 71506 transitions. [2020-10-15 02:23:40,810 INFO L78 Accepts]: Start accepts. Automaton has 51056 states and 71506 transitions. Word has length 93 [2020-10-15 02:23:40,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:23:40,810 INFO L479 AbstractCegarLoop]: Abstraction has 51056 states and 71506 transitions. [2020-10-15 02:23:40,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:23:40,810 INFO L276 IsEmpty]: Start isEmpty. Operand 51056 states and 71506 transitions. [2020-10-15 02:23:40,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 02:23:40,823 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:23:40,823 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] [2020-10-15 02:23:40,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 02:23:40,824 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:23:40,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:23:40,824 INFO L82 PathProgramCache]: Analyzing trace with hash -268389519, now seen corresponding path program 1 times [2020-10-15 02:23:40,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:23:40,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700487086] [2020-10-15 02:23:40,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:23:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:40,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:40,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:40,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:41,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:44,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:45,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:45,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 02:23:45,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:23:45,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 02:23:45,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:45,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:45,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:23:45,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-15 02:23:45,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:23:45,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:46,016 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:23:46,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:23:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:46,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:46,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:46,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:23:46,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:46,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:23:46,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:46,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:46,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:46,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:23:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:46,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:46,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:46,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:23:46,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:46,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:23:46,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:46,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:46,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:46,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:46,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:23:46,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:46,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:23:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:46,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:46,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:46,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:46,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:46,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:23:46,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:46,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:46,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:46,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:46,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:23:46,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:46,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:23:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:46,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:46,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:46,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:23:46,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:46,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:23:46,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:46,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:23:46,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:46,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:23:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:46,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:46,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:46,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:23:46,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:46,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:23:46,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:46,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:46,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:23:46,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:23:46,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:23:46,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:46,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:23:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:46,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:46,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:46,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:46,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:46,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:23:46,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:46,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:46,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:46,201 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 02:23:46,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700487086] [2020-10-15 02:23:46,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:23:46,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:23:46,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094561002] [2020-10-15 02:23:46,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:23:46,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:23:46,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:23:46,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:23:46,202 INFO L87 Difference]: Start difference. First operand 51056 states and 71506 transitions. Second operand 9 states. [2020-10-15 02:23:46,361 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:23:49,008 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:23:51,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:23:51,082 INFO L93 Difference]: Finished difference Result 86757 states and 123565 transitions. [2020-10-15 02:23:51,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:23:51,082 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-10-15 02:23:51,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:23:51,327 INFO L225 Difference]: With dead ends: 86757 [2020-10-15 02:23:51,327 INFO L226 Difference]: Without dead ends: 55361 [2020-10-15 02:23:51,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:23:51,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55361 states. [2020-10-15 02:23:54,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55361 to 51034. [2020-10-15 02:23:54,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51034 states. [2020-10-15 02:23:54,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51034 states to 51034 states and 70977 transitions. [2020-10-15 02:23:54,512 INFO L78 Accepts]: Start accepts. Automaton has 51034 states and 70977 transitions. Word has length 93 [2020-10-15 02:23:54,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:23:54,513 INFO L479 AbstractCegarLoop]: Abstraction has 51034 states and 70977 transitions. [2020-10-15 02:23:54,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:23:54,513 INFO L276 IsEmpty]: Start isEmpty. Operand 51034 states and 70977 transitions. [2020-10-15 02:23:54,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 02:23:54,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:23:54,528 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] [2020-10-15 02:23:54,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 02:23:54,528 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:23:54,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:23:54,528 INFO L82 PathProgramCache]: Analyzing trace with hash 326571629, now seen corresponding path program 1 times [2020-10-15 02:23:54,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:23:54,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [532740837] [2020-10-15 02:23:54,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:23:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:54,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:54,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:54,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:55,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:55,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:59,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:59,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 02:23:59,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:23:59,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 02:23:59,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:59,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:59,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:23:59,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-15 02:23:59,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:23:59,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:59,716 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:23:59,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:23:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:59,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:59,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:59,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:23:59,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:59,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:23:59,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:59,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:59,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:59,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:59,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:59,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:59,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:23:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:59,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:59,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:59,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:23:59,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:59,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:23:59,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:59,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:59,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:23:59,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:59,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 02:23:59,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:59,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:23:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:59,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:59,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:59,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:59,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:59,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:23:59,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:59,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:59,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:23:59,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:23:59,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:23:59,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:59,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:23:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:59,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:59,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:59,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:23:59,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:59,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:23:59,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:59,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:59,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:59,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:59,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:23:59,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:59,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:23:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:59,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:59,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:59,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:23:59,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:59,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:23:59,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:59,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:59,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:59,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:59,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:23:59,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:59,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:23:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:59,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:59,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:59,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:23:59,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:59,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:23:59,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:59,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:59,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:59,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:23:59,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:23:59,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:59,930 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 02:23:59,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [532740837] [2020-10-15 02:23:59,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:23:59,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:23:59,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110531206] [2020-10-15 02:23:59,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:23:59,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:23:59,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:23:59,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:23:59,932 INFO L87 Difference]: Start difference. First operand 51034 states and 70977 transitions. Second operand 10 states. [2020-10-15 02:24:00,115 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:24:00,509 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:24:02,430 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:24:02,590 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:24:08,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:24:08,776 INFO L93 Difference]: Finished difference Result 143604 states and 200085 transitions. [2020-10-15 02:24:08,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 02:24:08,777 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 93 [2020-10-15 02:24:08,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:24:09,089 INFO L225 Difference]: With dead ends: 143604 [2020-10-15 02:24:09,089 INFO L226 Difference]: Without dead ends: 99149 [2020-10-15 02:24:09,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 02:24:09,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99149 states. [2020-10-15 02:24:15,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99149 to 95566. [2020-10-15 02:24:15,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95566 states. [2020-10-15 02:24:16,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95566 states to 95566 states and 131170 transitions. [2020-10-15 02:24:16,031 INFO L78 Accepts]: Start accepts. Automaton has 95566 states and 131170 transitions. Word has length 93 [2020-10-15 02:24:16,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:24:16,032 INFO L479 AbstractCegarLoop]: Abstraction has 95566 states and 131170 transitions. [2020-10-15 02:24:16,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:24:16,032 INFO L276 IsEmpty]: Start isEmpty. Operand 95566 states and 131170 transitions. [2020-10-15 02:24:16,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-15 02:24:16,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:24:16,055 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] [2020-10-15 02:24:16,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 02:24:16,055 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:24:16,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:24:16,055 INFO L82 PathProgramCache]: Analyzing trace with hash 787309459, now seen corresponding path program 1 times [2020-10-15 02:24:16,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:24:16,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [494280958] [2020-10-15 02:24:16,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:24:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:16,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:16,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:16,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:17,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:17,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:21,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:21,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-15 02:24:21,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:24:21,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:24:21,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:21,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:21,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:24:21,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-15 02:24:21,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:24:21,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:21,252 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:24:21,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:24:21,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:21,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:21,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:21,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:24:21,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:21,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:24:21,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:21,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:21,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:21,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:21,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:21,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:21,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:24:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:21,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:21,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:21,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:24:21,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:21,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:24:21,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:21,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:21,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:24:21,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:21,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:24:21,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:21,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:24:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:21,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:21,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:21,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:21,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:21,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:24:21,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:21,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:21,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:21,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:21,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:24:21,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:21,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:24:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:21,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:21,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:21,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:24:21,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:21,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:24:21,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:21,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:21,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:24:21,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:24:21,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:24:21,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:21,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:24:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:21,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:21,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:21,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:24:21,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:21,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:24:21,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:21,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:21,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:21,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:21,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:24:21,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:21,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:24:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:21,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:21,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:21,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:24:21,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:21,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:24:21,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:21,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:21,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:21,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:24:21,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:24:21,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:21,466 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 02:24:21,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [494280958] [2020-10-15 02:24:21,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:24:21,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:24:21,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140649198] [2020-10-15 02:24:21,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:24:21,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:24:21,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:24:21,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:24:21,468 INFO L87 Difference]: Start difference. First operand 95566 states and 131170 transitions. Second operand 10 states. [2020-10-15 02:24:21,641 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:24:22,009 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:24:27,074 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:24:27,234 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 150