/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=NARROWEST --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_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:31:28,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:31:28,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:31:28,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:31:28,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:31:28,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:31:28,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:31:28,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:31:28,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:31:28,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:31:28,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:31:28,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:31:28,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:31:28,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:31:28,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:31:28,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:31:28,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:31:28,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:31:28,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:31:28,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:31:28,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:31:28,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:31:28,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:31:28,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:31:28,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:31:28,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:31:28,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:31:28,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:31:28,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:31:28,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:31:28,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:31:28,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:31:28,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:31:28,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:31:28,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:31:28,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:31:28,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:31:28,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:31:28,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:31:28,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:31:28,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:31:28,995 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 [2020-10-13 13:31:29,038 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:31:29,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:31:29,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:31:29,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:31:29,041 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:31:29,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:31:29,041 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:31:29,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:31:29,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:31:29,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:31:29,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:31:29,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:31:29,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:31:29,043 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:31:29,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:31:29,044 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:31:29,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:31:29,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:31:29,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:31:29,045 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:31:29,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:31:29,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:31:29,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:31:29,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:31:29,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:31:29,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:31:29,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:31:29,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:31:29,048 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:31:29,048 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 13:31:29,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:31:29,346 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:31:29,350 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:31:29,351 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:31:29,352 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:31:29,353 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c [2020-10-13 13:31:29,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/958fb8553/605815c9f70a476ca0f9e93750bd5c0b/FLAG8390276ac [2020-10-13 13:31:29,875 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:31:29,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c [2020-10-13 13:31:29,885 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/958fb8553/605815c9f70a476ca0f9e93750bd5c0b/FLAG8390276ac [2020-10-13 13:31:30,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/958fb8553/605815c9f70a476ca0f9e93750bd5c0b [2020-10-13 13:31:30,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:31:30,220 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:31:30,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:31:30,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:31:30,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:31:30,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:31:30" (1/1) ... [2020-10-13 13:31:30,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3798bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:31:30, skipping insertion in model container [2020-10-13 13:31:30,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:31:30" (1/1) ... [2020-10-13 13:31:30,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:31:30,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:31:30,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:31:30,505 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:31:30,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:31:30,704 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:31:30,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:31:30 WrapperNode [2020-10-13 13:31:30,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:31:30,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:31:30,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:31:30,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:31:30,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:31:30" (1/1) ... [2020-10-13 13:31:30,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:31:30" (1/1) ... [2020-10-13 13:31:30,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:31:30" (1/1) ... [2020-10-13 13:31:30,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:31:30" (1/1) ... [2020-10-13 13:31:30,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:31:30" (1/1) ... [2020-10-13 13:31:30,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:31:30" (1/1) ... [2020-10-13 13:31:30,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:31:30" (1/1) ... [2020-10-13 13:31:30,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:31:30,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:31:30,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:31:30,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:31:30,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:31:30" (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 [2020-10-13 13:31:30,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:31:30,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:31:30,837 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-13 13:31:30,837 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-13 13:31:30,837 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-13 13:31:30,837 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-13 13:31:30,837 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:31:30,837 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:31:30,838 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:31:30,838 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:31:30,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:31:30,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:31:30,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:31:30,838 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:31:30,839 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:31:30,839 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:31:30,839 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:31:30,839 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 13:31:30,839 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 13:31:30,839 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 13:31:30,840 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 13:31:30,840 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:31:30,840 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:31:30,840 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:31:30,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:31:30,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:31:31,458 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:31:31,458 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:31:31,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:31:31 BoogieIcfgContainer [2020-10-13 13:31:31,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:31:31,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:31:31,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:31:31,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:31:31,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:31:30" (1/3) ... [2020-10-13 13:31:31,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5445102f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:31:31, skipping insertion in model container [2020-10-13 13:31:31,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:31:30" (2/3) ... [2020-10-13 13:31:31,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5445102f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:31:31, skipping insertion in model container [2020-10-13 13:31:31,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:31:31" (3/3) ... [2020-10-13 13:31:31,473 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c [2020-10-13 13:31:31,483 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:31:31,491 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:31:31,504 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:31:31,530 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:31:31,530 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:31:31,531 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:31:31,531 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:31:31,531 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:31:31,531 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:31:31,532 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:31:31,532 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:31:31,555 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states. [2020-10-13 13:31:31,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-13 13:31:31,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:31:31,567 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] [2020-10-13 13:31:31,568 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:31:31,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:31:31,575 INFO L82 PathProgramCache]: Analyzing trace with hash -668003867, now seen corresponding path program 1 times [2020-10-13 13:31:31,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:31:31,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1731733138] [2020-10-13 13:31:31,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:31:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:31,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:32,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:32,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 13:31:32,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:32,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-10-13 13:31:32,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:32,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:32,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 13:31:32,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:32,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:31:32,389 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:31:32,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:31:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:32,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:32,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:32,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:31:32,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:32,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:31:32,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:32,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:32,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:32,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:32,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:31:32,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:31:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:32,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:32,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:32,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:31:32,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:32,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:31:32,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:32,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:32,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:32,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:32,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:32,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 13:31:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:32,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:32,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:32,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:32,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:32,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:31:32,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:32,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:32,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:32,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:32,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:32,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:31:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:32,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:32,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:32,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:32,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:32,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:31:32,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:32,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:32,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:32,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:32,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:31:32,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 13:31:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:32,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:32,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:32,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:32,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:32,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:31:32,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:32,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:32,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:32,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:32,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:31:32,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 13:31:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:32,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:32,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:32,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:32,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:32,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:31:32,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:32,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:32,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:31:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:32,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:32,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:32,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:31:32,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:32,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:31:32,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:32,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:32,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:31:32,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:32,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:32,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:31:32,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1731733138] [2020-10-13 13:31:32,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:31:32,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 13:31:32,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927098845] [2020-10-13 13:31:32,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 13:31:32,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:31:32,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 13:31:32,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 13:31:32,636 INFO L87 Difference]: Start difference. First operand 130 states. Second operand 7 states. [2020-10-13 13:31:33,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:31:33,490 INFO L93 Difference]: Finished difference Result 227 states and 335 transitions. [2020-10-13 13:31:33,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 13:31:33,492 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2020-10-13 13:31:33,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:31:33,505 INFO L225 Difference]: With dead ends: 227 [2020-10-13 13:31:33,505 INFO L226 Difference]: Without dead ends: 129 [2020-10-13 13:31:33,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:31:33,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-13 13:31:33,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 125. [2020-10-13 13:31:33,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-13 13:31:33,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 188 transitions. [2020-10-13 13:31:33,570 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 188 transitions. Word has length 56 [2020-10-13 13:31:33,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:31:33,571 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 188 transitions. [2020-10-13 13:31:33,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 13:31:33,571 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 188 transitions. [2020-10-13 13:31:33,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-13 13:31:33,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:31:33,574 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] [2020-10-13 13:31:33,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:31:33,575 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:31:33,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:31:33,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1565397145, now seen corresponding path program 1 times [2020-10-13 13:31:33,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:31:33,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608853076] [2020-10-13 13:31:33,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:31:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:33,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:33,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:33,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 13:31:33,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:33,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-10-13 13:31:33,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:33,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:31:33,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 13:31:33,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:31:33,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:34,163 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:31:34,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:31:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:34,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:34,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:34,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:31:34,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:34,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:31:34,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:34,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:34,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:34,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:34,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:34,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:31:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:34,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:34,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:34,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:31:34,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:34,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:31:34,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:34,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:31:34,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:34,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:31:34,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:34,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 13:31:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:34,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:34,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:34,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:34,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:34,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:31:34,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:34,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:34,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:34,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:34,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:34,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:31:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:34,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:34,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:34,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:34,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:34,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:31:34,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:34,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:34,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:34,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:34,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:34,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 13:31:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:34,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:34,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:34,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:34,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:34,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:31:34,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:34,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:34,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:34,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:34,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:31:34,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 13:31:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:34,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:34,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:34,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:34,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:34,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:31:34,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:34,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:34,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:34,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:34,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:34,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:31:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:34,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:34,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:34,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:31:34,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:34,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:34,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:34,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:34,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:31:34,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:34,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:34,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:31:34,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608853076] [2020-10-13 13:31:34,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:31:34,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:31:34,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544699796] [2020-10-13 13:31:34,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:31:34,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:31:34,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:31:34,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:31:34,397 INFO L87 Difference]: Start difference. First operand 125 states and 188 transitions. Second operand 11 states. [2020-10-13 13:31:35,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:31:35,919 INFO L93 Difference]: Finished difference Result 232 states and 340 transitions. [2020-10-13 13:31:35,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 13:31:35,921 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-10-13 13:31:35,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:31:35,924 INFO L225 Difference]: With dead ends: 232 [2020-10-13 13:31:35,924 INFO L226 Difference]: Without dead ends: 139 [2020-10-13 13:31:35,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-13 13:31:35,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-10-13 13:31:35,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 125. [2020-10-13 13:31:35,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-13 13:31:35,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 164 transitions. [2020-10-13 13:31:35,978 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 164 transitions. Word has length 56 [2020-10-13 13:31:35,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:31:35,979 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 164 transitions. [2020-10-13 13:31:35,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:31:35,981 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 164 transitions. [2020-10-13 13:31:35,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 13:31:35,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:31:35,986 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] [2020-10-13 13:31:35,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:31:35,987 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:31:35,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:31:35,987 INFO L82 PathProgramCache]: Analyzing trace with hash 873179754, now seen corresponding path program 1 times [2020-10-13 13:31:35,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:31:35,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1002802096] [2020-10-13 13:31:35,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:31:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:36,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:36,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:36,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:36,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:38,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:41,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:41,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:31:41,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:31:41,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 13:31:41,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:31:41,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 13:31:41,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:31:41,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:31:41,253 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:31:41,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:31:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:41,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:41,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:41,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:31:41,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:41,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:31:41,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:41,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:41,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:41,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:41,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:41,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:31:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:41,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:41,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:41,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:31:41,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:41,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:31:41,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:41,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:41,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:41,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:31:41,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:41,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 13:31:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:41,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:41,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:41,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:41,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:41,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:31:41,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:41,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:31:41,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:31:41,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:31:41,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:41,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-13 13:31:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:41,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:41,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:41,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:41,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:41,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:31:41,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:41,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:41,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:41,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:41,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:31:41,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 13:31:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:41,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:41,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:41,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:41,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:41,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:41,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:41,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:41,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:41,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:41,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:41,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 13:31:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:41,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:41,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:41,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:41,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:41,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:41,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:41,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:41,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:41,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:41,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:41,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 13:31:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:41,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:41,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:41,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:31:41,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:41,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:31:41,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:31:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:41,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:41,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:31:41,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1002802096] [2020-10-13 13:31:41,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:31:41,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:31:41,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125643298] [2020-10-13 13:31:41,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:31:41,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:31:41,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:31:41,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:31:41,497 INFO L87 Difference]: Start difference. First operand 125 states and 164 transitions. Second operand 10 states. [2020-10-13 13:31:41,636 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:31:43,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:31:43,207 INFO L93 Difference]: Finished difference Result 294 states and 405 transitions. [2020-10-13 13:31:43,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:31:43,208 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2020-10-13 13:31:43,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:31:43,213 INFO L225 Difference]: With dead ends: 294 [2020-10-13 13:31:43,214 INFO L226 Difference]: Without dead ends: 207 [2020-10-13 13:31:43,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:31:43,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2020-10-13 13:31:43,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 198. [2020-10-13 13:31:43,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-13 13:31:43,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 269 transitions. [2020-10-13 13:31:43,240 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 269 transitions. Word has length 79 [2020-10-13 13:31:43,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:31:43,241 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 269 transitions. [2020-10-13 13:31:43,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:31:43,241 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 269 transitions. [2020-10-13 13:31:43,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 13:31:43,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:31:43,245 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] [2020-10-13 13:31:43,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:31:43,245 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:31:43,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:31:43,246 INFO L82 PathProgramCache]: Analyzing trace with hash -649121455, now seen corresponding path program 1 times [2020-10-13 13:31:43,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:31:43,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332215724] [2020-10-13 13:31:43,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:31:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:43,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:43,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:43,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:43,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:48,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:48,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 13:31:48,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:31:48,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:31:48,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:48,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:31:48,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 13:31:48,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:31:48,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:48,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:31:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:48,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:48,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:48,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:31:48,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:48,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:31:48,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:48,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:48,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:48,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:48,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:48,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:31:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:48,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:48,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:48,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:31:48,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:48,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:31:48,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:48,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:48,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:48,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:31:48,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:48,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 13:31:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:48,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:48,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:48,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:31:48,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:48,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:31:48,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:31:48,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:48,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 13:31:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:48,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:48,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:48,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:48,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:48,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:31:48,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:48,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:31:48,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:31:48,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:31:48,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:31:48,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 13:31:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:48,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:48,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:48,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:48,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:48,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:31:48,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:48,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:48,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:48,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:48,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:48,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-13 13:31:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:48,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:48,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:48,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:48,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:48,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:48,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:48,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:48,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:48,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:48,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:48,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-13 13:31:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:48,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:48,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:48,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:31:48,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:48,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:48,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:48,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:48,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:31:48,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:48,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:48,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:31:48,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332215724] [2020-10-13 13:31:48,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:31:48,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:31:48,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072294924] [2020-10-13 13:31:48,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:31:48,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:31:48,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:31:48,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:31:48,656 INFO L87 Difference]: Start difference. First operand 198 states and 269 transitions. Second operand 10 states. [2020-10-13 13:31:50,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:31:50,250 INFO L93 Difference]: Finished difference Result 506 states and 707 transitions. [2020-10-13 13:31:50,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:31:50,251 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 80 [2020-10-13 13:31:50,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:31:50,253 INFO L225 Difference]: With dead ends: 506 [2020-10-13 13:31:50,254 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 13:31:50,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:31:50,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 13:31:50,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 332. [2020-10-13 13:31:50,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-10-13 13:31:50,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 459 transitions. [2020-10-13 13:31:50,285 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 459 transitions. Word has length 80 [2020-10-13 13:31:50,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:31:50,286 INFO L479 AbstractCegarLoop]: Abstraction has 332 states and 459 transitions. [2020-10-13 13:31:50,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:31:50,286 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 459 transitions. [2020-10-13 13:31:50,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-13 13:31:50,288 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:31:50,288 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] [2020-10-13 13:31:50,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:31:50,288 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:31:50,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:31:50,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1189706842, now seen corresponding path program 1 times [2020-10-13 13:31:50,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:31:50,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195321950] [2020-10-13 13:31:50,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:31:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:50,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:50,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:50,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:51,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:51,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 13:31:51,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:31:51,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1660 [2020-10-13 13:31:51,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:31:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-13 13:31:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-13 13:31:51,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:52,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:31:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:52,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:52,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:52,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:31:52,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:52,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:31:52,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:52,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:52,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:52,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:52,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:52,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:31:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:52,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:52,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:52,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:31:52,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:52,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:31:52,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:52,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:52,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:52,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 13:31:52,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:52,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 13:31:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:52,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:52,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:52,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:31:52,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:52,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:31:52,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:31:52,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:52,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 13:31:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:52,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:52,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:52,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:31:52,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:52,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:31:52,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:52,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:52,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:52,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:31:52,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:52,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 13:31:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:52,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:52,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:52,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:52,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:52,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:31:52,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:52,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:31:52,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:31:52,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:31:52,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:52,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:31:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:52,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:52,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:52,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:52,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:52,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:52,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:52,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:52,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:52,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:52,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:52,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 13:31:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:52,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:52,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:52,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:31:52,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:52,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:31:52,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:52,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:52,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:31:52,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:52,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:31:52,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195321950] [2020-10-13 13:31:52,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:31:52,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:31:52,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36885929] [2020-10-13 13:31:52,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:31:52,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:31:52,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:31:52,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:31:52,297 INFO L87 Difference]: Start difference. First operand 332 states and 459 transitions. Second operand 10 states. [2020-10-13 13:31:54,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:31:54,106 INFO L93 Difference]: Finished difference Result 892 states and 1249 transitions. [2020-10-13 13:31:54,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:31:54,109 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2020-10-13 13:31:54,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:31:54,114 INFO L225 Difference]: With dead ends: 892 [2020-10-13 13:31:54,114 INFO L226 Difference]: Without dead ends: 598 [2020-10-13 13:31:54,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:31:54,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-10-13 13:31:54,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 576. [2020-10-13 13:31:54,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 576 states. [2020-10-13 13:31:54,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 799 transitions. [2020-10-13 13:31:54,170 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 799 transitions. Word has length 81 [2020-10-13 13:31:54,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:31:54,170 INFO L479 AbstractCegarLoop]: Abstraction has 576 states and 799 transitions. [2020-10-13 13:31:54,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:31:54,171 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 799 transitions. [2020-10-13 13:31:54,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-13 13:31:54,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:31:54,172 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] [2020-10-13 13:31:54,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:31:54,173 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:31:54,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:31:54,173 INFO L82 PathProgramCache]: Analyzing trace with hash 269089741, now seen corresponding path program 1 times [2020-10-13 13:31:54,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:31:54,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [141804967] [2020-10-13 13:31:54,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:31:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:54,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:54,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:54,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:54,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-13 13:31:54,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:31:54,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 794 [2020-10-13 13:31:54,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:54,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:31:54,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-13 13:31:54,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-13 13:31:54,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:55,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:31:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:55,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:55,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:55,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:31:55,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:55,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:31:55,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:55,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:55,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:55,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:55,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:55,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:31:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:55,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:55,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:55,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:31:55,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:55,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:31:55,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:55,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:55,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:55,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 13:31:55,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:55,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 13:31:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:55,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:55,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:55,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:31:55,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:55,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:31:55,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:55,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:55,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:55,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:31:55,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:55,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 13:31:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:55,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:55,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:55,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:31:55,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:55,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:31:55,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:55,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:55,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:55,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:31:55,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:55,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 13:31:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:55,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:55,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:55,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:31:55,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:55,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:31:55,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:55,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:55,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:55,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:31:55,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:55,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:31:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:55,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:55,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:55,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:55,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:55,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:31:55,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:55,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:31:55,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:31:55,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:31:55,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:55,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:31:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:55,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:55,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:55,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:31:55,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:55,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:31:55,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:55,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:55,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:31:55,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:55,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:55,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:31:55,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [141804967] [2020-10-13 13:31:55,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:31:55,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:31:55,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586617710] [2020-10-13 13:31:55,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:31:55,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:31:55,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:31:55,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:31:55,336 INFO L87 Difference]: Start difference. First operand 576 states and 799 transitions. Second operand 10 states. [2020-10-13 13:31:57,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:31:57,116 INFO L93 Difference]: Finished difference Result 1588 states and 2209 transitions. [2020-10-13 13:31:57,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:31:57,118 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-10-13 13:31:57,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:31:57,125 INFO L225 Difference]: With dead ends: 1588 [2020-10-13 13:31:57,125 INFO L226 Difference]: Without dead ends: 1050 [2020-10-13 13:31:57,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:31:57,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2020-10-13 13:31:57,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1016. [2020-10-13 13:31:57,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1016 states. [2020-10-13 13:31:57,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1399 transitions. [2020-10-13 13:31:57,214 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1399 transitions. Word has length 82 [2020-10-13 13:31:57,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:31:57,215 INFO L479 AbstractCegarLoop]: Abstraction has 1016 states and 1399 transitions. [2020-10-13 13:31:57,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:31:57,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1399 transitions. [2020-10-13 13:31:57,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-13 13:31:57,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:31:57,216 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] [2020-10-13 13:31:57,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:31:57,217 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:31:57,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:31:57,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1757972872, now seen corresponding path program 1 times [2020-10-13 13:31:57,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:31:57,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911579148] [2020-10-13 13:31:57,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:31:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:57,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:57,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:59,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:59,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:31:59,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:31:59,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1777 [2020-10-13 13:31:59,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:59,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:31:59,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 13:31:59,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-13 13:31:59,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:59,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:31:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:59,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:59,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:59,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:31:59,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:59,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:31:59,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:59,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:59,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:59,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:59,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:59,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:31:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:59,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:59,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:59,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:31:59,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:59,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:31:59,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:59,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:59,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:59,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 13:31:59,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:59,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 13:31:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:59,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:59,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:59,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:31:59,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:59,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:31:59,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:59,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:31:59,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:59,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:31:59,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:59,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 13:31:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:59,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:59,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:59,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:31:59,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:59,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:31:59,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:59,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:31:59,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:59,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:31:59,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:59,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 13:31:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:59,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:59,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:59,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:31:59,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:59,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:31:59,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:59,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:31:59,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:59,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:31:59,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:59,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:31:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:59,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:59,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:59,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:31:59,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:59,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:31:59,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:59,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:59,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:31:59,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:31:59,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:59,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:31:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:59,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:59,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:59,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:31:59,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:59,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:31:59,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:59,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:59,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:31:59,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:59,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:59,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:31:59,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911579148] [2020-10-13 13:31:59,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:31:59,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-13 13:31:59,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131111160] [2020-10-13 13:31:59,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 13:31:59,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:31:59,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 13:31:59,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:31:59,461 INFO L87 Difference]: Start difference. First operand 1016 states and 1399 transitions. Second operand 15 states. [2020-10-13 13:31:59,662 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:32:00,135 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:32:00,524 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:32:00,683 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:32:00,808 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:32:01,413 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:32:01,585 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:32:01,730 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:32:01,865 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:32:02,012 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:32:02,468 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:32:03,461 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:32:03,613 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:32:03,756 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:32:03,899 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:32:04,046 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:32:04,195 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:32:04,439 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:32:04,584 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:32:04,762 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:32:04,909 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:32:05,041 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:32:05,192 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:32:05,919 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:32:16,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:32:16,572 INFO L93 Difference]: Finished difference Result 14380 states and 20812 transitions. [2020-10-13 13:32:16,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2020-10-13 13:32:16,577 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 83 [2020-10-13 13:32:16,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:32:16,675 INFO L225 Difference]: With dead ends: 14380 [2020-10-13 13:32:16,676 INFO L226 Difference]: Without dead ends: 13402 [2020-10-13 13:32:16,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7338 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=2317, Invalid=16589, Unknown=0, NotChecked=0, Total=18906 [2020-10-13 13:32:16,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13402 states. [2020-10-13 13:32:17,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13402 to 13144. [2020-10-13 13:32:17,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13144 states. [2020-10-13 13:32:17,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13144 states to 13144 states and 17487 transitions. [2020-10-13 13:32:17,819 INFO L78 Accepts]: Start accepts. Automaton has 13144 states and 17487 transitions. Word has length 83 [2020-10-13 13:32:17,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:32:17,819 INFO L479 AbstractCegarLoop]: Abstraction has 13144 states and 17487 transitions. [2020-10-13 13:32:17,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 13:32:17,820 INFO L276 IsEmpty]: Start isEmpty. Operand 13144 states and 17487 transitions. [2020-10-13 13:32:17,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-13 13:32:17,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:32:17,822 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] [2020-10-13 13:32:17,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:32:17,822 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:32:17,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:32:17,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1565099064, now seen corresponding path program 1 times [2020-10-13 13:32:17,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:32:17,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1410661502] [2020-10-13 13:32:17,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:32:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:17,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:18,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:18,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-13 13:32:18,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:18,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 395 [2020-10-13 13:32:18,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:18,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:32:18,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 13:32:18,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 13:32:18,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:32:18,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:32:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:18,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:18,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:18,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:32:18,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:18,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:32:18,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:18,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:32:18,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:32:18,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:32:18,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:32:18,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:32:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:18,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:18,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:18,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:32:18,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:18,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:32:18,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:18,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:32:18,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:32:18,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:32:18,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:32:18,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 13:32:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:18,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:18,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:18,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:32:18,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:18,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:32:18,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:18,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:32:18,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:32:18,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:32:18,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:32:18,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 13:32:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:18,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:18,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:18,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:32:18,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:18,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:32:18,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:18,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:32:18,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:32:18,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:32:18,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:32:18,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 13:32:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:18,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:18,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:18,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:32:18,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:18,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:32:18,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:18,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:32:18,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:32:18,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:32:18,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:32:18,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:32:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:18,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:18,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:18,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:32:18,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:18,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:32:18,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:32:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:32:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:32:18,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:32:18,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:32:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:18,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:18,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:18,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:32:18,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:18,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:32:18,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:18,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:32:18,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:32:18,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:32:18,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:32:18,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:32:18,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1410661502] [2020-10-13 13:32:18,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:32:18,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-13 13:32:18,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615994547] [2020-10-13 13:32:18,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:32:18,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:32:18,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:32:18,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:32:18,794 INFO L87 Difference]: Start difference. First operand 13144 states and 17487 transitions. Second operand 16 states. [2020-10-13 13:32:18,965 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:32:19,310 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:32:19,445 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:32:22,094 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:32:22,234 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:32:22,364 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:32:22,497 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:32:25,340 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-13 13:32:30,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:32:30,021 INFO L93 Difference]: Finished difference Result 113272 states and 152118 transitions. [2020-10-13 13:32:30,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2020-10-13 13:32:30,022 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 84 [2020-10-13 13:32:30,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:32:32,060 INFO L225 Difference]: With dead ends: 113272 [2020-10-13 13:32:32,060 INFO L226 Difference]: Without dead ends: 100294 [2020-10-13 13:32:32,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1880 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1186, Invalid=4666, Unknown=0, NotChecked=0, Total=5852 [2020-10-13 13:32:32,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100294 states. [2020-10-13 13:32:39,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100294 to 98688. [2020-10-13 13:32:39,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98688 states. [2020-10-13 13:32:39,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98688 states to 98688 states and 130959 transitions. [2020-10-13 13:32:39,592 INFO L78 Accepts]: Start accepts. Automaton has 98688 states and 130959 transitions. Word has length 84 [2020-10-13 13:32:39,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:32:39,593 INFO L479 AbstractCegarLoop]: Abstraction has 98688 states and 130959 transitions. [2020-10-13 13:32:39,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:32:39,593 INFO L276 IsEmpty]: Start isEmpty. Operand 98688 states and 130959 transitions. [2020-10-13 13:32:39,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-13 13:32:39,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:32:39,595 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] [2020-10-13 13:32:39,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:32:39,595 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:32:39,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:32:39,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1456347581, now seen corresponding path program 1 times [2020-10-13 13:32:39,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:32:39,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1209627835] [2020-10-13 13:32:39,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:32:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:39,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:39,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:39,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:32:39,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:39,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-13 13:32:39,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:39,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:32:39,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 13:32:39,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:32:39,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:32:40,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:32:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:40,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:40,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:40,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:32:40,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:40,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:32:40,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:32:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:32:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:32:40,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:32:40,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:32:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:40,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:40,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:40,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:32:40,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:40,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:32:40,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:40,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:32:40,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:32:40,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:32:40,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:32:40,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 13:32:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:40,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:40,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:40,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:32:40,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:40,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:32:40,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:32:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:32:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:32:40,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:32:40,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 13:32:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:40,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:40,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:40,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:32:40,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:40,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:32:40,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:40,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:32:40,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:32:40,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:32:40,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:32:40,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 13:32:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:40,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:40,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:40,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:32:40,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:40,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:32:40,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:40,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:32:40,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:32:40,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:32:40,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:32:40,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:32:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:40,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:40,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:40,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:32:40,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:40,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:32:40,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:32:40,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:32:40,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:32:40,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:32:40,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:32:40,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:40,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:40,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:40,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:32:40,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:40,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:32:40,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:40,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:32:40,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:32:40,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:32:40,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:32:40,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:32:40,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1209627835] [2020-10-13 13:32:40,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:32:40,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:32:40,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744481029] [2020-10-13 13:32:40,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:32:40,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:32:40,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:32:40,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:32:40,250 INFO L87 Difference]: Start difference. First operand 98688 states and 130959 transitions. Second operand 13 states. [2020-10-13 13:32:41,479 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:32:47,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:32:47,851 INFO L93 Difference]: Finished difference Result 120520 states and 165830 transitions. [2020-10-13 13:32:47,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:32:47,852 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 85 [2020-10-13 13:32:47,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:32:48,380 INFO L225 Difference]: With dead ends: 120520 [2020-10-13 13:32:48,380 INFO L226 Difference]: Without dead ends: 120518 [2020-10-13 13:32:48,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:32:48,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120518 states. [2020-10-13 13:32:56,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120518 to 107904. [2020-10-13 13:32:56,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107904 states. [2020-10-13 13:32:56,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107904 states to 107904 states and 140175 transitions. [2020-10-13 13:32:56,865 INFO L78 Accepts]: Start accepts. Automaton has 107904 states and 140175 transitions. Word has length 85 [2020-10-13 13:32:56,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:32:56,865 INFO L479 AbstractCegarLoop]: Abstraction has 107904 states and 140175 transitions. [2020-10-13 13:32:56,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:32:56,865 INFO L276 IsEmpty]: Start isEmpty. Operand 107904 states and 140175 transitions. [2020-10-13 13:32:56,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-13 13:32:56,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:32:56,867 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] [2020-10-13 13:32:56,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:32:56,868 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:32:56,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:32:56,868 INFO L82 PathProgramCache]: Analyzing trace with hash 948072304, now seen corresponding path program 1 times [2020-10-13 13:32:56,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:32:56,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [553220372] [2020-10-13 13:32:56,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:32:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:56,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:57,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:57,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 13:32:57,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:57,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-13 13:32:57,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:57,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:32:57,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 13:32:57,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:32:57,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:32:57,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:32:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:57,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:57,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:57,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:32:57,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:57,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:32:57,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:57,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:32:57,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:32:57,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:32:57,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:32:57,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:32:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:57,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:57,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:57,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:32:57,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:57,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:32:57,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:57,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:32:57,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:32:57,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 13:32:57,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:32:57,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 13:32:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:57,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:57,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:57,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:32:57,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:57,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 13:32:57,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:57,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:32:57,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:32:57,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:32:57,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:32:57,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 13:32:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:57,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:57,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:57,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:32:57,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:57,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:32:57,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:57,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:32:57,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:32:57,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:32:57,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:32:57,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 13:32:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:57,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:57,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:57,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:32:57,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:57,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:32:57,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:32:57,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:32:57,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:32:57,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 13:32:57,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:32:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:57,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:57,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:57,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:32:57,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:57,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:32:57,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:57,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:32:57,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:32:57,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:32:57,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:32:57,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:32:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:32:57,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:32:57,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:32:57,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:32:57,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:32:57,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:32:57,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:32:57,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:32:57,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:32:57,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:32:57,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:32:57,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:32:57,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [553220372] [2020-10-13 13:32:57,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:32:57,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:32:57,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332867574] [2020-10-13 13:32:57,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:32:57,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:32:57,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:32:57,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:32:57,431 INFO L87 Difference]: Start difference. First operand 107904 states and 140175 transitions. Second operand 10 states. [2020-10-13 13:32:57,608 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-13 13:33:09,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:33:09,641 INFO L93 Difference]: Finished difference Result 308588 states and 404416 transitions. [2020-10-13 13:33:09,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 13:33:09,642 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-10-13 13:33:09,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:33:10,339 INFO L225 Difference]: With dead ends: 308588 [2020-10-13 13:33:10,339 INFO L226 Difference]: Without dead ends: 200850 [2020-10-13 13:33:10,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:33:10,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200850 states. [2020-10-13 13:33:23,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200850 to 197512. [2020-10-13 13:33:23,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197512 states. [2020-10-13 13:33:23,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197512 states to 197512 states and 259039 transitions. [2020-10-13 13:33:23,781 INFO L78 Accepts]: Start accepts. Automaton has 197512 states and 259039 transitions. Word has length 86 [2020-10-13 13:33:23,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:33:23,782 INFO L479 AbstractCegarLoop]: Abstraction has 197512 states and 259039 transitions. [2020-10-13 13:33:23,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:33:23,782 INFO L276 IsEmpty]: Start isEmpty. Operand 197512 states and 259039 transitions. [2020-10-13 13:33:23,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-13 13:33:23,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:33:23,821 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:33:23,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:33:23,822 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:33:23,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:33:23,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1259262275, now seen corresponding path program 1 times [2020-10-13 13:33:23,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:33:23,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758125737] [2020-10-13 13:33:23,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:33:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:23,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:23,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:27,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:27,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-13 13:33:27,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:33:27,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3203 [2020-10-13 13:33:27,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:27,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:33:27,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 13:33:27,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 13:33:27,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:27,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:33:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:27,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:27,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:27,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:33:27,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:27,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:33:27,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:27,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:27,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:27,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:27,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:33:27,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:33:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:27,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:27,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:27,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:33:27,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:27,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:33:27,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:27,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:27,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:27,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 13:33:27,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:33:27,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 13:33:27,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:27,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:27,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:27,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:33:27,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:27,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:33:27,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:27,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:27,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:27,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:33:27,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:33:27,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 13:33:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:27,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:27,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:27,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:33:27,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:27,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:33:27,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:27,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:27,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:27,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:33:27,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:33:27,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 13:33:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:27,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:27,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:27,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:33:27,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:27,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:33:27,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:27,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:27,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:27,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:33:27,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:27,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:33:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:27,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:27,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:27,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:33:27,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:27,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 13:33:27,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:27,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:33:27,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:33:27,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:33:27,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:27,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:33:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:27,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:27,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:27,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:27,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:27,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:33:27,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:27,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:27,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:27,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:33:27,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:27,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 13:33:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:27,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:27,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:27,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:33:27,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:27,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:33:27,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:27,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:27,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:27,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:33:27,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:27,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 13:33:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:27,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:27,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:27,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:27,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:27,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:33:27,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:27,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:33:27,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:33:27,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:33:27,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:27,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 13:33:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:27,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:27,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:27,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:27,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:27,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:33:27,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:27,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:27,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:27,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:27,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:27,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:33:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:27,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:27,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:27,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:27,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:27,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:33:27,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:27,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:27,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:27,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:27,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:27,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:33:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:27,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:27,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:27,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:27,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:27,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:33:27,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:27,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:27,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:27,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:27,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:27,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-13 13:33:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:27,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:27,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:27,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:33:27,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:27,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:33:27,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:27,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:27,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-13 13:33:27,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:27,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:27,794 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-13 13:33:27,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758125737] [2020-10-13 13:33:27,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:33:27,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 13:33:27,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996821694] [2020-10-13 13:33:27,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:33:27,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:33:27,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:33:27,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:33:27,797 INFO L87 Difference]: Start difference. First operand 197512 states and 259039 transitions. Second operand 16 states. [2020-10-13 13:33:27,983 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:33:29,125 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 132 [2020-10-13 13:33:29,504 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:33:31,399 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 134 [2020-10-13 13:33:39,397 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 13:33:54,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:33:54,331 INFO L93 Difference]: Finished difference Result 592940 states and 775783 transitions. [2020-10-13 13:33:54,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-13 13:33:54,331 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 130 [2020-10-13 13:33:54,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:33:56,325 INFO L225 Difference]: With dead ends: 592940 [2020-10-13 13:33:56,325 INFO L226 Difference]: Without dead ends: 489610 [2020-10-13 13:33:56,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=434, Invalid=1728, Unknown=0, NotChecked=0, Total=2162 [2020-10-13 13:33:57,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489610 states. [2020-10-13 13:34:39,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489610 to 471640. [2020-10-13 13:34:39,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471640 states. [2020-10-13 13:34:40,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471640 states to 471640 states and 618038 transitions. [2020-10-13 13:34:40,541 INFO L78 Accepts]: Start accepts. Automaton has 471640 states and 618038 transitions. Word has length 130 [2020-10-13 13:34:40,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:34:40,541 INFO L479 AbstractCegarLoop]: Abstraction has 471640 states and 618038 transitions. [2020-10-13 13:34:40,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:34:40,542 INFO L276 IsEmpty]: Start isEmpty. Operand 471640 states and 618038 transitions. [2020-10-13 13:34:40,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-13 13:34:40,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:34:40,594 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:34:40,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 13:34:40,595 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:34:40,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:34:40,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1676658881, now seen corresponding path program 1 times [2020-10-13 13:34:40,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:34:40,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050774663] [2020-10-13 13:34:40,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:34:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:40,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:40,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-13 13:34:42,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:34:42,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1538 [2020-10-13 13:34:42,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:34:42,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:34:42,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:34:42,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:42,315 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:34:42,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:34:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:34:42,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:34:42,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:34:42,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:34:42,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:34:42,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:34:42,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:34:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:34:42,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 13:34:42,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:34:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:34:42,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 13:34:42,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:34:42,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 13:34:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:34:42,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:34:42,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:34:42,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:34:42,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:34:42,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:42,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 13:34:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:34:42,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:34:42,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:34:42,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:34:42,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:34:42,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:42,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 13:34:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:34:42,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:34:42,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:34:42,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:34:42,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:34:42,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:42,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:34:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:34:42,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:34:42,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:34:42,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:34:42,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:34:42,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:42,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:34:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:34:42,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:34:42,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:34:42,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:34:42,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:34:42,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:42,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 13:34:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:34:42,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:34:42,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:34:42,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:34:42,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:34:42,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:42,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 13:34:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:34:42,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:34:42,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:34:42,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:34:42,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:34:42,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:42,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 13:34:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:34:42,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:34:42,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:34:42,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:34:42,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:34:42,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:42,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:34:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:34:42,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:34:42,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:34:42,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:34:42,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:34:42,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:42,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:34:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:34:42,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:34:42,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:34:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:34:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:34:42,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:42,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-13 13:34:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:34:42,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:34:42,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:34:42,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-13 13:34:42,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:34:42,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:34:42,675 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-13 13:34:42,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050774663] [2020-10-13 13:34:42,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:34:42,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 13:34:42,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072695373] [2020-10-13 13:34:42,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:34:42,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:34:42,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:34:42,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:34:42,679 INFO L87 Difference]: Start difference. First operand 471640 states and 618038 transitions. Second operand 14 states.