/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.6.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:26:12,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:26:12,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:26:12,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:26:12,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:26:12,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:26:12,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:26:12,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:26:12,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:26:12,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:26:12,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:26:12,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:26:12,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:26:12,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:26:12,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:26:12,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:26:13,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:26:13,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:26:13,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:26:13,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:26:13,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:26:13,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:26:13,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:26:13,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:26:13,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:26:13,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:26:13,019 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:26:13,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:26:13,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:26:13,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:26:13,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:26:13,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:26:13,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:26:13,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:26:13,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:26:13,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:26:13,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:26:13,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:26:13,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:26:13,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:26:13,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:26:13,033 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 13:26:13,073 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:26:13,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:26:13,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:26:13,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:26:13,075 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:26:13,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:26:13,076 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:26:13,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:26:13,076 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:26:13,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:26:13,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:26:13,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:26:13,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:26:13,078 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:26:13,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:26:13,078 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:26:13,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:26:13,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:26:13,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:26:13,079 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:26:13,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:26:13,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:26:13,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:26:13,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:26:13,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:26:13,080 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:26:13,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:26:13,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:26:13,081 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:26:13,081 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 13:26:13,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:26:13,363 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:26:13,367 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:26:13,368 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:26:13,368 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:26:13,369 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.6.1.ufo.UNBOUNDED.pals.c [2020-10-13 13:26:13,429 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d63b0277/6292af5ecee3463f8a1e6216936d9906/FLAGe516a2e65 [2020-10-13 13:26:13,890 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:26:13,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.6.1.ufo.UNBOUNDED.pals.c [2020-10-13 13:26:13,901 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d63b0277/6292af5ecee3463f8a1e6216936d9906/FLAGe516a2e65 [2020-10-13 13:26:14,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d63b0277/6292af5ecee3463f8a1e6216936d9906 [2020-10-13 13:26:14,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:26:14,276 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:26:14,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:26:14,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:26:14,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:26:14,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:26:14" (1/1) ... [2020-10-13 13:26:14,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e42023b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:14, skipping insertion in model container [2020-10-13 13:26:14,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:26:14" (1/1) ... [2020-10-13 13:26:14,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:26:14,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:26:14,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:26:14,754 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:26:14,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:26:14,828 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:26:14,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:14 WrapperNode [2020-10-13 13:26:14,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:26:14,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:26:14,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:26:14,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:26:14,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:14" (1/1) ... [2020-10-13 13:26:14,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:14" (1/1) ... [2020-10-13 13:26:14,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:14" (1/1) ... [2020-10-13 13:26:14,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:14" (1/1) ... [2020-10-13 13:26:14,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:14" (1/1) ... [2020-10-13 13:26:14,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:14" (1/1) ... [2020-10-13 13:26:14,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:14" (1/1) ... [2020-10-13 13:26:14,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:26:14,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:26:14,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:26:14,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:26:14,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:14" (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 13:26:14,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:26:14,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:26:14,965 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 13:26:14,965 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-13 13:26:14,965 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-13 13:26:14,966 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-13 13:26:14,966 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-13 13:26:14,966 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-13 13:26:14,966 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-13 13:26:14,966 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:26:14,966 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:26:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:26:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:26:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:26:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:26:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:26:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-13 13:26:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:26:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:26:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 13:26:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:26:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:26:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 13:26:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 13:26:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 13:26:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 13:26:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-13 13:26:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-13 13:26:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:26:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:26:14,970 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:26:14,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:26:14,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:26:15,605 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:26:15,605 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:26:15,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:26:15 BoogieIcfgContainer [2020-10-13 13:26:15,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:26:15,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:26:15,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:26:15,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:26:15,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:26:14" (1/3) ... [2020-10-13 13:26:15,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bae30e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:26:15, skipping insertion in model container [2020-10-13 13:26:15,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:14" (2/3) ... [2020-10-13 13:26:15,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bae30e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:26:15, skipping insertion in model container [2020-10-13 13:26:15,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:26:15" (3/3) ... [2020-10-13 13:26:15,620 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c [2020-10-13 13:26:15,631 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:26:15,639 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:26:15,653 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:26:15,679 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:26:15,679 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:26:15,679 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:26:15,679 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:26:15,680 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:26:15,680 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:26:15,680 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:26:15,680 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:26:15,702 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2020-10-13 13:26:15,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-13 13:26:15,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:15,714 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] [2020-10-13 13:26:15,714 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:15,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:15,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1312585018, now seen corresponding path program 1 times [2020-10-13 13:26:15,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:15,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217619087] [2020-10-13 13:26:15,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:16,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:16,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:16,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 13:26:16,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:16,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-10-13 13:26:16,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:16,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:16,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 13:26:16,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:16,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:26:16,690 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:26:16,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:16,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:16,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:16,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:16,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:16,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:26:16,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:16,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:16,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:16,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:16,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:16,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:16,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:16,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:16,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:16,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:16,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:26:16,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:16,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:16,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:16,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:16,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:16,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 13:26:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:16,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:16,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:16,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:16,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:16,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:16,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:16,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:26:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:16,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:16,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 13:26:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:16,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:16,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:16,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:16,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:16,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:26:16,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:16,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:16,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:16,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:16,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:16,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 13:26:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:16,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:16,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:16,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:16,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:16,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:16,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:16,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:16,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:16,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:16,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:16,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 13:26:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:16,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:16,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:16,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:16,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:16,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:26:16,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:16,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:16,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:16,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:16,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:16,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:26:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:16,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:16,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:16,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:16,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:16,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:16,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:16,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:16,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:16,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:16,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:16,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 13:26:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:16,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:16,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:16,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:16,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:16,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:16,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:16,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:16,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:16,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:16,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:17,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 13:26:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:17,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:17,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:17,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:17,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:17,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:17,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:17,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:17,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:17,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:17,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:17,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:26:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:17,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:17,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:17,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:17,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:17,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:17,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:17,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:17,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:17,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:17,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:17,067 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 13:26:17,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217619087] [2020-10-13 13:26:17,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:26:17,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:26:17,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949205853] [2020-10-13 13:26:17,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:26:17,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:17,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:26:17,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:26:17,097 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 9 states. [2020-10-13 13:26:18,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:18,400 INFO L93 Difference]: Finished difference Result 243 states and 362 transitions. [2020-10-13 13:26:18,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 13:26:18,402 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 74 [2020-10-13 13:26:18,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:18,422 INFO L225 Difference]: With dead ends: 243 [2020-10-13 13:26:18,423 INFO L226 Difference]: Without dead ends: 147 [2020-10-13 13:26:18,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:26:18,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-13 13:26:18,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 146. [2020-10-13 13:26:18,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-13 13:26:18,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 222 transitions. [2020-10-13 13:26:18,487 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 222 transitions. Word has length 74 [2020-10-13 13:26:18,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:18,488 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 222 transitions. [2020-10-13 13:26:18,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:26:18,488 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 222 transitions. [2020-10-13 13:26:18,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-13 13:26:18,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:18,493 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] [2020-10-13 13:26:18,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:26:18,493 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:18,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:18,494 INFO L82 PathProgramCache]: Analyzing trace with hash -751885240, now seen corresponding path program 1 times [2020-10-13 13:26:18,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:18,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1446092254] [2020-10-13 13:26:18,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:18,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:19,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:19,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 13:26:19,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:19,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 589 [2020-10-13 13:26:19,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:19,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:26:19,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 13:26:19,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:26:19,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:19,297 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:26:19,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:19,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:19,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:19,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:19,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:19,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:19,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:26:19,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:19,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:19,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:19,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:19,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:19,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:19,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:19,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:19,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:19,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:19,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:26:19,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:19,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:19,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:19,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:19,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:19,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 13:26:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:19,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:19,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:19,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:19,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:19,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:19,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:19,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:19,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:26:19,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:19,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:19,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 13:26:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:19,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:19,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:19,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:19,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:19,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:26:19,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:19,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:19,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:19,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:19,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:19,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 13:26:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:19,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:19,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:19,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:19,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:19,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:19,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:19,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:19,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:19,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:19,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:19,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 13:26:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:19,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:19,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:19,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:19,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:19,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:19,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:19,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:19,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:19,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:19,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:19,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:26:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:19,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:19,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:19,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:19,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:19,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:26:19,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:19,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:19,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:19,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:19,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:19,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 13:26:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:19,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:19,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:19,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:19,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:19,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:19,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:19,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:19,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:19,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:19,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:19,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 13:26:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:19,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:19,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:19,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:19,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:19,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:19,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:19,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:19,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:19,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:19,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:19,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:26:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:19,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:19,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:19,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:19,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:19,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:19,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:19,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:19,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:19,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:19,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:19,714 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 13:26:19,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1446092254] [2020-10-13 13:26:19,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:26:19,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-13 13:26:19,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281760733] [2020-10-13 13:26:19,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 13:26:19,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:19,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 13:26:19,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:26:19,719 INFO L87 Difference]: Start difference. First operand 146 states and 222 transitions. Second operand 15 states. [2020-10-13 13:26:19,917 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:26:20,073 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-13 13:26:20,316 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:26:20,510 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:26:22,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:22,542 INFO L93 Difference]: Finished difference Result 241 states and 354 transitions. [2020-10-13 13:26:22,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:26:22,544 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 74 [2020-10-13 13:26:22,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:22,548 INFO L225 Difference]: With dead ends: 241 [2020-10-13 13:26:22,548 INFO L226 Difference]: Without dead ends: 147 [2020-10-13 13:26:22,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:26:22,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-13 13:26:22,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 146. [2020-10-13 13:26:22,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-13 13:26:22,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 182 transitions. [2020-10-13 13:26:22,571 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 182 transitions. Word has length 74 [2020-10-13 13:26:22,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:22,572 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 182 transitions. [2020-10-13 13:26:22,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 13:26:22,572 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 182 transitions. [2020-10-13 13:26:22,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-13 13:26:22,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:22,574 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:22,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:26:22,575 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:22,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:22,575 INFO L82 PathProgramCache]: Analyzing trace with hash 921540579, now seen corresponding path program 1 times [2020-10-13 13:26:22,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:22,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844719918] [2020-10-13 13:26:22,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:22,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:22,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:22,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:22,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:23,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:27,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:27,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 13:26:27,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:26:27,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-13 13:26:27,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:27,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:27,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-13 13:26:27,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 13:26:27,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 13:26:27,922 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:26:27,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:27,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:27,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:27,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:27,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:27,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:26:27,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:27,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:27,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:27,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:27,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:27,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:27,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:27,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:27,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:26:27,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:27,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:26:27,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:27,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:27,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:27,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:27,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:28,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:26:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:28,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:28,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:28,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:28,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:28,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:28,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:28,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:28,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:28,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:28,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:28,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:26:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:28,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:28,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:28,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:28,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:28,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:26:28,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:28,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:28,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:26:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:28,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:28,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:28,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:28,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:28,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:26:28,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:28,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:28,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:28,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:28,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:28,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:26:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:28,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:28,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:28,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:28,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:28,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:28,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:28,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:28,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:28,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:28,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:28,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:26:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:28,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:28,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:28,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:28,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:28,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:28,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:28,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:28,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:28,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:28,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:28,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:26:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:28,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:28,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:28,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:28,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:28,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:28,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:28,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:28,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:28,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:28,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:28,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:26:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:28,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:28,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:28,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:28,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:28,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:28,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:28,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:28,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:28,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:28,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:28,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:26:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:28,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:28,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:28,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:28,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:28,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:28,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:28,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:28,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:28,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:28,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:28,276 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 13:26:28,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844719918] [2020-10-13 13:26:28,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:26:28,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 13:26:28,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565269126] [2020-10-13 13:26:28,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:26:28,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:28,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:26:28,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:26:28,281 INFO L87 Difference]: Start difference. First operand 146 states and 182 transitions. Second operand 12 states. [2020-10-13 13:26:28,453 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:26:30,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:30,562 INFO L93 Difference]: Finished difference Result 318 states and 424 transitions. [2020-10-13 13:26:30,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 13:26:30,563 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 113 [2020-10-13 13:26:30,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:30,572 INFO L225 Difference]: With dead ends: 318 [2020-10-13 13:26:30,575 INFO L226 Difference]: Without dead ends: 230 [2020-10-13 13:26:30,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:26:30,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-13 13:26:30,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 226. [2020-10-13 13:26:30,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-13 13:26:30,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 295 transitions. [2020-10-13 13:26:30,632 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 295 transitions. Word has length 113 [2020-10-13 13:26:30,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:30,633 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 295 transitions. [2020-10-13 13:26:30,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:26:30,634 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 295 transitions. [2020-10-13 13:26:30,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-13 13:26:30,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:30,642 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:26:30,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:26:30,642 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:30,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:30,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1354723239, now seen corresponding path program 1 times [2020-10-13 13:26:30,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:30,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771389052] [2020-10-13 13:26:30,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:30,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:30,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:30,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:31,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:32,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:35,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:35,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 13:26:35,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:26:35,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 13:26:35,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:35,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:35,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 13:26:35,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 13:26:35,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:35,850 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:26:35,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:35,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:35,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:35,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:35,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:35,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:35,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:35,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:35,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:35,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:35,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:35,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:35,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:35,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:35,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:26:35,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:35,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:26:35,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:35,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:26:35,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:35,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:26:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:35,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:35,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:35,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:35,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:35,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:35,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:35,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:35,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:35,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:35,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:35,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:26:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:35,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:35,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:35,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:35,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:35,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:26:35,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:35,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:35,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:35,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:35,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:35,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:26:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:36,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:36,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:36,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:36,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:36,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:26:36,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:36,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:36,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:36,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:36,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:26:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:36,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:36,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:36,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:36,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:36,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:26:36,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:36,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:36,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:36,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:36,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:36,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:26:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:36,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:36,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:36,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:36,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:36,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:36,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:36,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:36,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:36,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:36,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:36,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:26:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:36,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:36,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:36,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:36,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:36,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:36,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:36,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:36,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:36,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:36,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:36,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:26:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:36,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:36,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:36,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:36,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:36,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:36,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:36,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:36,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:36,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:36,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:36,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:26:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:36,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:36,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:36,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:36,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:36,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:36,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:36,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:36,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:36,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:36,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:36,221 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 13:26:36,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771389052] [2020-10-13 13:26:36,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:26:36,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 13:26:36,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357703152] [2020-10-13 13:26:36,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:26:36,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:36,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:26:36,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:26:36,224 INFO L87 Difference]: Start difference. First operand 226 states and 295 transitions. Second operand 12 states. [2020-10-13 13:26:36,370 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:26:38,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:38,557 INFO L93 Difference]: Finished difference Result 554 states and 757 transitions. [2020-10-13 13:26:38,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 13:26:38,558 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 113 [2020-10-13 13:26:38,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:38,562 INFO L225 Difference]: With dead ends: 554 [2020-10-13 13:26:38,562 INFO L226 Difference]: Without dead ends: 386 [2020-10-13 13:26:38,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:26:38,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-10-13 13:26:38,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 380. [2020-10-13 13:26:38,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-10-13 13:26:38,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 511 transitions. [2020-10-13 13:26:38,620 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 511 transitions. Word has length 113 [2020-10-13 13:26:38,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:38,622 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 511 transitions. [2020-10-13 13:26:38,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:26:38,622 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 511 transitions. [2020-10-13 13:26:38,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-13 13:26:38,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:38,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:26:38,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:26:38,627 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:38,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:38,628 INFO L82 PathProgramCache]: Analyzing trace with hash 282343333, now seen corresponding path program 1 times [2020-10-13 13:26:38,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:38,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1213072693] [2020-10-13 13:26:38,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:38,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:38,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:38,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:38,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:42,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:43,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:43,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 13:26:43,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:26:43,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 13:26:43,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:43,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:43,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-13 13:26:43,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:26:43,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:43,833 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:26:43,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:43,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:43,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:43,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:43,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:43,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:26:43,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:43,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:43,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:43,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:43,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:43,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:43,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:43,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:43,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:26:43,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:43,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:26:43,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:43,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:43,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:43,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:26:43,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:43,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:26:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:43,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:43,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:43,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:43,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:43,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:43,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:43,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:43,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:43,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:43,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:43,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:26:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:43,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:43,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:43,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:43,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:43,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:43,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:43,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:43,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:43,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:43,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:43,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:26:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:43,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:43,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:43,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:43,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:43,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:43,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:43,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:43,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:43,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:43,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:43,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:26:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:43,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:43,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:43,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:43,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:43,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:43,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:43,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:43,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:43,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:43,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:43,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:26:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:43,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:44,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:44,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:44,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:44,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:26:44,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:44,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:44,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:44,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:44,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:44,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:26:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:44,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:44,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:44,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:44,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:44,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:44,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:44,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:44,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:44,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:44,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:44,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:26:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:44,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:44,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:44,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:44,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:44,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:44,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:44,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:44,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:44,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:44,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:44,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:26:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:44,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:44,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:44,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:44,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:44,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:44,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:44,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:44,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:44,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:44,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:44,163 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 13:26:44,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1213072693] [2020-10-13 13:26:44,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:26:44,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 13:26:44,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766676509] [2020-10-13 13:26:44,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:26:44,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:44,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:26:44,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:26:44,167 INFO L87 Difference]: Start difference. First operand 380 states and 511 transitions. Second operand 12 states. [2020-10-13 13:26:44,319 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:26:46,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:46,366 INFO L93 Difference]: Finished difference Result 1008 states and 1393 transitions. [2020-10-13 13:26:46,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 13:26:46,367 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 113 [2020-10-13 13:26:46,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:46,374 INFO L225 Difference]: With dead ends: 1008 [2020-10-13 13:26:46,374 INFO L226 Difference]: Without dead ends: 686 [2020-10-13 13:26:46,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:26:46,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2020-10-13 13:26:46,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 676. [2020-10-13 13:26:46,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2020-10-13 13:26:46,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 923 transitions. [2020-10-13 13:26:46,445 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 923 transitions. Word has length 113 [2020-10-13 13:26:46,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:46,446 INFO L479 AbstractCegarLoop]: Abstraction has 676 states and 923 transitions. [2020-10-13 13:26:46,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:26:46,446 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 923 transitions. [2020-10-13 13:26:46,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-13 13:26:46,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:46,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:26:46,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:26:46,448 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:46,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:46,448 INFO L82 PathProgramCache]: Analyzing trace with hash 730568347, now seen corresponding path program 1 times [2020-10-13 13:26:46,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:46,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1810174426] [2020-10-13 13:26:46,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:46,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:46,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:46,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:47,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:51,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:51,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 13:26:51,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:26:51,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 13:26:51,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:51,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:51,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 13:26:51,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 13:26:51,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:51,678 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:26:51,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:51,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:51,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:51,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:51,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:51,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:26:51,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:51,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:51,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:51,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:51,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:51,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:51,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:51,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:51,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:26:51,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:51,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:26:51,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:51,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:51,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:51,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:26:51,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:51,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:26:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:51,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:51,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:51,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:51,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:51,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:51,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:51,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:51,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:51,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:51,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:51,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:26:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:51,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:51,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:51,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:51,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:51,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:51,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:51,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:51,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:51,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:26:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:51,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:51,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:51,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:51,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:51,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:51,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:51,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:51,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:51,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:51,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:51,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:26:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:51,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:51,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:51,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:51,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:51,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:51,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:51,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:51,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:51,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:51,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:51,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:26:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:51,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:51,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:51,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:51,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:51,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:51,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:51,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:51,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:51,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:51,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:51,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:26:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:51,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:51,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:51,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:51,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:51,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:26:51,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:51,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:51,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:51,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:51,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:51,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:26:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:51,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:51,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:51,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:51,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:51,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:51,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:51,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:51,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:51,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:51,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:51,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:26:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:51,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:51,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:51,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:51,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:51,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:51,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:51,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:51,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:51,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:51,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:51,994 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 13:26:51,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1810174426] [2020-10-13 13:26:51,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:26:51,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 13:26:51,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383579909] [2020-10-13 13:26:51,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:26:51,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:51,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:26:51,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:26:51,997 INFO L87 Difference]: Start difference. First operand 676 states and 923 transitions. Second operand 12 states. [2020-10-13 13:26:52,160 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:26:54,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:54,802 INFO L93 Difference]: Finished difference Result 1880 states and 2605 transitions. [2020-10-13 13:26:54,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 13:26:54,805 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 113 [2020-10-13 13:26:54,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:54,817 INFO L225 Difference]: With dead ends: 1880 [2020-10-13 13:26:54,817 INFO L226 Difference]: Without dead ends: 1262 [2020-10-13 13:26:54,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:26:54,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2020-10-13 13:26:54,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1244. [2020-10-13 13:26:54,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1244 states. [2020-10-13 13:26:54,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 1707 transitions. [2020-10-13 13:26:54,951 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 1707 transitions. Word has length 113 [2020-10-13 13:26:54,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:54,952 INFO L479 AbstractCegarLoop]: Abstraction has 1244 states and 1707 transitions. [2020-10-13 13:26:54,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:26:54,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 1707 transitions. [2020-10-13 13:26:54,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-13 13:26:54,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:54,954 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:26:54,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:26:54,954 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:54,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:54,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1648787355, now seen corresponding path program 1 times [2020-10-13 13:26:54,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:54,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774273490] [2020-10-13 13:26:54,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:55,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:55,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:55,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:59,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:59,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 13:26:59,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:26:59,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 13:26:59,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:59,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:59,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 13:26:59,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:26:59,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,144 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:27:00,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:27:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:27:00,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:27:00,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:00,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:00,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:27:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:27:00,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:27:00,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:00,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 13:27:00,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:27:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:00,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:00,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:00,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:27:00,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:27:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:00,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:27:00,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:00,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:00,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:27:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:00,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:27:00,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:00,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:00,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:27:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:00,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:00,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:00,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:27:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:00,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:27:00,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:00,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:00,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:27:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:00,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:27:00,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:00,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:00,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:27:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:00,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:27:00,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:00,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:00,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:00,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:27:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:27:00,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:00,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:27:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:00,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:00,504 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 13:27:00,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774273490] [2020-10-13 13:27:00,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:27:00,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 13:27:00,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625146497] [2020-10-13 13:27:00,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:27:00,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:27:00,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:27:00,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:27:00,508 INFO L87 Difference]: Start difference. First operand 1244 states and 1707 transitions. Second operand 12 states. [2020-10-13 13:27:00,664 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:27:02,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:27:02,883 INFO L93 Difference]: Finished difference Result 3552 states and 4909 transitions. [2020-10-13 13:27:02,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 13:27:02,884 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 113 [2020-10-13 13:27:02,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:27:02,898 INFO L225 Difference]: With dead ends: 3552 [2020-10-13 13:27:02,898 INFO L226 Difference]: Without dead ends: 2366 [2020-10-13 13:27:02,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:27:02,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2020-10-13 13:27:03,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2332. [2020-10-13 13:27:03,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2332 states. [2020-10-13 13:27:03,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 3195 transitions. [2020-10-13 13:27:03,102 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 3195 transitions. Word has length 113 [2020-10-13 13:27:03,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:27:03,103 INFO L479 AbstractCegarLoop]: Abstraction has 2332 states and 3195 transitions. [2020-10-13 13:27:03,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:27:03,103 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 3195 transitions. [2020-10-13 13:27:03,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-13 13:27:03,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:27:03,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:27:03,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:27:03,105 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:27:03,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:27:03,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1051895259, now seen corresponding path program 1 times [2020-10-13 13:27:03,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:27:03,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012029021] [2020-10-13 13:27:03,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:27:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:03,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:03,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:05,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:05,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 13:27:05,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:27:05,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2605 [2020-10-13 13:27:05,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:05,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:27:05,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:27:05,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 13:27:05,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:05,947 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:27:05,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:27:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:05,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:05,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:05,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:27:05,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:05,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:27:05,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:27:05,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:05,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:27:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:05,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:06,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:06,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:27:06,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:06,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:27:06,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:06,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:06,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:06,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 13:27:06,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:06,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:27:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:06,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:06,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:06,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:06,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:06,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:06,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:06,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:06,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:06,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:27:06,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:06,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:27:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:06,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:06,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:06,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:06,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:06,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:27:06,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:06,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:06,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:06,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:06,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:06,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:27:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:06,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:06,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:06,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:06,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:06,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:27:06,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:06,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:06,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:06,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:06,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:27:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:06,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:06,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:06,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:06,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:06,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:27:06,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:06,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:06,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:06,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:27:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:06,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:06,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:06,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:06,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:06,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:06,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:06,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:06,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:06,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:06,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:06,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:27:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:06,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:06,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:06,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:06,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:06,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:06,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:06,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:06,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:06,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:06,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:06,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:27:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:06,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:06,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:06,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:06,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:06,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:06,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:06,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:06,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:06,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:06,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:06,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:27:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:06,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:06,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:06,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:27:06,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:06,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:06,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:06,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:06,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:27:06,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:06,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:06,345 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 13:27:06,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1012029021] [2020-10-13 13:27:06,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:27:06,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-13 13:27:06,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935611370] [2020-10-13 13:27:06,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:27:06,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:27:06,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:27:06,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:27:06,348 INFO L87 Difference]: Start difference. First operand 2332 states and 3195 transitions. Second operand 16 states. [2020-10-13 13:27:06,651 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 145 [2020-10-13 13:27:06,804 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:27:06,996 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:27:07,509 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 146 [2020-10-13 13:27:07,677 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-10-13 13:27:07,907 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-13 13:27:08,097 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-13 13:27:08,293 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-13 13:27:08,489 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-13 13:27:08,708 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-13 13:27:09,048 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-13 13:27:09,241 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-10-13 13:27:09,436 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-13 13:27:09,693 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-13 13:27:09,953 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-13 13:27:10,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:27:10,205 INFO L93 Difference]: Finished difference Result 4686 states and 6444 transitions. [2020-10-13 13:27:10,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 13:27:10,206 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 113 [2020-10-13 13:27:10,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:27:10,220 INFO L225 Difference]: With dead ends: 4686 [2020-10-13 13:27:10,220 INFO L226 Difference]: Without dead ends: 2412 [2020-10-13 13:27:10,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=291, Invalid=765, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 13:27:10,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2020-10-13 13:27:10,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2332. [2020-10-13 13:27:10,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2332 states. [2020-10-13 13:27:10,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 3179 transitions. [2020-10-13 13:27:10,465 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 3179 transitions. Word has length 113 [2020-10-13 13:27:10,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:27:10,466 INFO L479 AbstractCegarLoop]: Abstraction has 2332 states and 3179 transitions. [2020-10-13 13:27:10,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:27:10,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 3179 transitions. [2020-10-13 13:27:10,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-13 13:27:10,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:27:10,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:27:10,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:27:10,468 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:27:10,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:27:10,468 INFO L82 PathProgramCache]: Analyzing trace with hash 392363737, now seen corresponding path program 1 times [2020-10-13 13:27:10,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:27:10,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378372631] [2020-10-13 13:27:10,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:27:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:10,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:11,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:11,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 13:27:11,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:11,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 837 [2020-10-13 13:27:11,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:11,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:27:11,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:27:11,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 13:27:11,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:11,542 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:27:11,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:27:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:11,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:11,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:11,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:27:11,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:11,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:11,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:11,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:11,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:11,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:11,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:11,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:27:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:11,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:11,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:11,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:27:11,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:11,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 13:27:11,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:11,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:27:11,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:11,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:27:11,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:11,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:27:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:11,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:11,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:11,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:11,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:11,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:11,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:11,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:11,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:11,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:27:11,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:11,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:27:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:11,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:11,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:11,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:11,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:11,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:27:11,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:11,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:11,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:11,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:11,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:11,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:27:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:11,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:11,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:11,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:11,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:11,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:27:11,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:11,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:11,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:11,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:11,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:11,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:27:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:11,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:11,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:11,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:11,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:11,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:27:11,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:11,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:11,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:11,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:27:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:11,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:11,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:11,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:11,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:11,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:27:11,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:11,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:11,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:11,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:11,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:11,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:27:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:11,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:11,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:11,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:11,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:11,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:27:11,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:11,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:11,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:11,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:11,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:11,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:27:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:11,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:11,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:11,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:11,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:11,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:27:11,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:11,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:11,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:11,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:11,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:12,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:27:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:12,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:12,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:12,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:27:12,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:12,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:12,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:12,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:12,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:27:12,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:27:12,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:12,089 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 13:27:12,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378372631] [2020-10-13 13:27:12,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:27:12,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-13 13:27:12,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049011131] [2020-10-13 13:27:12,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-13 13:27:12,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:27:12,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-13 13:27:12,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:27:12,091 INFO L87 Difference]: Start difference. First operand 2332 states and 3179 transitions. Second operand 22 states. [2020-10-13 13:27:12,468 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-13 13:27:12,649 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 13:27:12,810 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:27:12,972 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:27:13,139 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-13 13:27:13,319 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-13 13:27:13,646 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 13:27:13,978 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-13 13:27:14,300 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-13 13:27:14,627 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-13 13:27:14,949 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-13 13:27:15,279 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-13 13:27:15,659 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:27:16,778 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:27:18,963 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-13 13:27:19,348 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-13 13:27:19,512 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2020-10-13 13:27:20,241 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 152 [2020-10-13 13:27:20,644 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-13 13:27:21,066 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 150 [2020-10-13 13:27:21,472 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 148 [2020-10-13 13:27:22,074 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-13 13:27:22,264 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-13 13:27:23,617 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2020-10-13 13:27:25,054 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-13 13:27:25,246 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-13 13:27:25,433 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-10-13 13:27:25,614 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-13 13:27:26,907 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-13 13:27:27,095 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-13 13:27:27,279 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-13 13:27:27,458 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-13 13:27:28,268 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-13 13:27:28,716 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-13 13:27:28,902 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-13 13:27:29,087 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-13 13:27:29,358 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-13 13:27:30,286 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-13 13:27:30,470 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-13 13:27:30,653 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-13 13:27:30,953 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-13 13:27:31,706 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-13 13:27:31,895 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-13 13:27:32,079 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-13 13:27:32,417 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-13 13:27:33,073 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-13 13:27:34,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:27:34,656 INFO L93 Difference]: Finished difference Result 33334 states and 46456 transitions. [2020-10-13 13:27:34,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2020-10-13 13:27:34,657 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 113 [2020-10-13 13:27:34,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:27:34,828 INFO L225 Difference]: With dead ends: 33334 [2020-10-13 13:27:34,828 INFO L226 Difference]: Without dead ends: 31060 [2020-10-13 13:27:34,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7399 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=3357, Invalid=16949, Unknown=0, NotChecked=0, Total=20306 [2020-10-13 13:27:34,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31060 states. [2020-10-13 13:27:38,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31060 to 28108. [2020-10-13 13:27:38,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28108 states. [2020-10-13 13:27:38,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28108 states to 28108 states and 39211 transitions. [2020-10-13 13:27:38,187 INFO L78 Accepts]: Start accepts. Automaton has 28108 states and 39211 transitions. Word has length 113 [2020-10-13 13:27:38,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:27:38,188 INFO L479 AbstractCegarLoop]: Abstraction has 28108 states and 39211 transitions. [2020-10-13 13:27:38,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-13 13:27:38,188 INFO L276 IsEmpty]: Start isEmpty. Operand 28108 states and 39211 transitions. [2020-10-13 13:27:38,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 13:27:38,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:27:38,190 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:27:38,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:27:38,190 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:27:38,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:27:38,190 INFO L82 PathProgramCache]: Analyzing trace with hash 840929809, now seen corresponding path program 1 times [2020-10-13 13:27:38,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:27:38,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747325618] [2020-10-13 13:27:38,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:27:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:38,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:38,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 13:27:38,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:38,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 603 [2020-10-13 13:27:38,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:38,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:27:38,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:27:38,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 13:27:38,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,979 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:27:38,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:27:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:38,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:38,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:27:38,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:38,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:38,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:38,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:38,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:38,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:38,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:27:38,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:39,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:39,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:27:39,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:39,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:27:39,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:39,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:27:39,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:39,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:27:39,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:39,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:27:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:39,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:39,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:39,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:39,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:39,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:39,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:39,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:39,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:39,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:27:39,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:39,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:27:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:39,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:39,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:39,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:39,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:39,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:27:39,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:39,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:39,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:39,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:39,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:39,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:27:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:39,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:39,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:39,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:39,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:39,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:27:39,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:39,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:39,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:39,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:39,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:39,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:27:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:39,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:39,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:39,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:39,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:39,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:27:39,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:39,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:39,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:39,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:39,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:27:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:39,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:39,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:39,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:39,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:39,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:27:39,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:39,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:39,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:39,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:39,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:39,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:27:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:39,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:39,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:39,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:39,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:39,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:27:39,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:39,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:39,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:27:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:39,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:39,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:39,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:39,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:39,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:27:39,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:39,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:39,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:39,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:27:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:39,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:39,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:39,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:27:39,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:39,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:39,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:39,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:39,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:27:39,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:27:39,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:39,645 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 13:27:39,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747325618] [2020-10-13 13:27:39,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:27:39,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-13 13:27:39,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711896324] [2020-10-13 13:27:39,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-13 13:27:39,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:27:39,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-13 13:27:39,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:27:39,647 INFO L87 Difference]: Start difference. First operand 28108 states and 39211 transitions. Second operand 22 states. [2020-10-13 13:27:39,923 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-13 13:27:40,110 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:27:40,288 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:27:40,473 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:27:40,675 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-13 13:27:40,889 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-13 13:27:41,475 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 13:27:41,634 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-13 13:27:41,917 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 13:27:42,209 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 13:27:42,512 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-13 13:27:42,823 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 13:27:44,118 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:27:44,954 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-13 13:27:45,299 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-13 13:27:46,245 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-13 13:27:47,964 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-13 13:27:48,235 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 13:27:48,770 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 13:27:50,171 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-13 13:27:52,071 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 13:27:53,736 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 13:27:53,864 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 13:27:55,290 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-13 13:27:55,471 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 13:27:55,600 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 13:27:56,918 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 13:27:58,101 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-13 13:27:58,347 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 13:27:59,094 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 13:28:01,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:01,108 INFO L93 Difference]: Finished difference Result 77876 states and 109335 transitions. [2020-10-13 13:28:01,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2020-10-13 13:28:01,109 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 115 [2020-10-13 13:28:01,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:01,295 INFO L225 Difference]: With dead ends: 77876 [2020-10-13 13:28:01,295 INFO L226 Difference]: Without dead ends: 49826 [2020-10-13 13:28:01,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7168 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=3381, Invalid=16359, Unknown=0, NotChecked=0, Total=19740 [2020-10-13 13:28:01,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49826 states. [2020-10-13 13:28:06,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49826 to 49132. [2020-10-13 13:28:06,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49132 states. [2020-10-13 13:28:06,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49132 states to 49132 states and 68795 transitions. [2020-10-13 13:28:06,789 INFO L78 Accepts]: Start accepts. Automaton has 49132 states and 68795 transitions. Word has length 115 [2020-10-13 13:28:06,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:06,789 INFO L479 AbstractCegarLoop]: Abstraction has 49132 states and 68795 transitions. [2020-10-13 13:28:06,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-13 13:28:06,789 INFO L276 IsEmpty]: Start isEmpty. Operand 49132 states and 68795 transitions. [2020-10-13 13:28:06,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 13:28:06,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:06,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:28:06,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:28:06,791 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:06,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:06,791 INFO L82 PathProgramCache]: Analyzing trace with hash 2128632265, now seen corresponding path program 1 times [2020-10-13 13:28:06,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:06,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1025325263] [2020-10-13 13:28:06,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:06,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:06,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:07,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:07,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:07,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 13:28:07,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:28:07,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 719 [2020-10-13 13:28:07,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:07,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:07,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-10-13 13:28:07,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:28:07,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:07,760 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:28:07,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:07,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:07,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:07,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:07,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:07,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:28:07,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:07,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:07,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:07,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:07,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:07,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:28:07,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:07,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:28:07,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:07,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:07,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:07,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:07,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:07,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:28:07,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:07,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:07,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:07,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:07,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:07,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:28:07,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:07,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:07,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:07,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:07,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:07,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:28:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:07,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:07,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:07,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:07,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:07,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:07,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:07,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:07,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:07,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:07,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:07,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:28:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:07,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:07,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:07,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:07,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:07,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:07,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:07,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:07,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:07,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:07,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:07,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:28:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:07,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:07,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:07,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:07,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:07,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:07,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:07,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:07,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:07,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:07,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:07,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:28:07,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:07,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:07,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:07,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:07,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:07,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:07,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:07,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:07,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:07,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:07,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:07,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:28:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:07,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:07,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:07,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:07,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:07,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:07,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:07,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:07,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:07,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:07,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:07,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:28:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:07,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:07,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:07,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:07,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:07,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:07,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:07,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:07,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:07,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:28:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:07,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:07,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:07,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:28:07,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:07,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:07,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:07,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:07,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:28:07,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:28:07,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:08,020 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 13:28:08,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1025325263] [2020-10-13 13:28:08,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:08,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:28:08,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415101933] [2020-10-13 13:28:08,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:28:08,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:08,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:28:08,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:28:08,022 INFO L87 Difference]: Start difference. First operand 49132 states and 68795 transitions. Second operand 10 states. [2020-10-13 13:28:09,002 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:28:15,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:15,977 INFO L93 Difference]: Finished difference Result 143376 states and 202397 transitions. [2020-10-13 13:28:15,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:28:15,978 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 115 [2020-10-13 13:28:15,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:16,292 INFO L225 Difference]: With dead ends: 143376 [2020-10-13 13:28:16,293 INFO L226 Difference]: Without dead ends: 94302 [2020-10-13 13:28:16,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:28:16,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94302 states. [2020-10-13 13:28:26,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94302 to 92284. [2020-10-13 13:28:26,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92284 states. [2020-10-13 13:28:26,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92284 states to 92284 states and 128123 transitions. [2020-10-13 13:28:26,746 INFO L78 Accepts]: Start accepts. Automaton has 92284 states and 128123 transitions. Word has length 115 [2020-10-13 13:28:26,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:26,746 INFO L479 AbstractCegarLoop]: Abstraction has 92284 states and 128123 transitions. [2020-10-13 13:28:26,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:28:26,746 INFO L276 IsEmpty]: Start isEmpty. Operand 92284 states and 128123 transitions. [2020-10-13 13:28:26,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-13 13:28:26,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:26,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:28:26,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 13:28:26,748 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:26,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:26,752 INFO L82 PathProgramCache]: Analyzing trace with hash 74965310, now seen corresponding path program 1 times [2020-10-13 13:28:26,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:26,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1669247758] [2020-10-13 13:28:26,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:26,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:27,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:27,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-13 13:28:27,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:27,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-13 13:28:27,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:27,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:28:27,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 131 [2020-10-13 13:28:27,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:28:27,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:27,193 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:28:27,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:27,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:27,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:27,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:27,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:27,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:27,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:27,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:27,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:27,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:27,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:27,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:27,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:27,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:27,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:28:27,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:27,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:27,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:27,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:27,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:27,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:27,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:27,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:28:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:27,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:27,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:27,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:27,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:27,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:28:27,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:27,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:27,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:27,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:27,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:27,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:28:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:27,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:27,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:27,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:27,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:27,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:27,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:27,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:27,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:27,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:27,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:27,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:28:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:27,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:27,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:27,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:27,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:27,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:27,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:27,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:27,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:27,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:27,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:27,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:28:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:27,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:27,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:27,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:27,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:27,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:27,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:27,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:27,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:27,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:27,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:27,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:28:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:27,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:27,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:27,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:27,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:27,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:27,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:27,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:27,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:28:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:27,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:27,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:27,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:27,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:27,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:27,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:27,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:27,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:27,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:27,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:27,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:28:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:27,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:27,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:27,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:27,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:27,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:27,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:27,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:27,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:27,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:27,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:27,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:28:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:27,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:27,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:27,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:28:27,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:27,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:27,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:27,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:27,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:27,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:28:27,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:27,440 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 13:28:27,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1669247758] [2020-10-13 13:28:27,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:27,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-13 13:28:27,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892181140] [2020-10-13 13:28:27,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 13:28:27,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:27,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 13:28:27,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:28:27,442 INFO L87 Difference]: Start difference. First operand 92284 states and 128123 transitions. Second operand 15 states. [2020-10-13 13:28:28,796 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:28:29,257 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:28:29,460 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:28:29,623 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:28:38,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:38,000 INFO L93 Difference]: Finished difference Result 105640 states and 157457 transitions. [2020-10-13 13:28:38,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:28:38,001 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 116 [2020-10-13 13:28:38,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:38,330 INFO L225 Difference]: With dead ends: 105640 [2020-10-13 13:28:38,330 INFO L226 Difference]: Without dead ends: 105638 [2020-10-13 13:28:38,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:28:38,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105638 states. [2020-10-13 13:28:47,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105638 to 95164. [2020-10-13 13:28:47,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95164 states. [2020-10-13 13:28:48,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95164 states to 95164 states and 131163 transitions. [2020-10-13 13:28:48,036 INFO L78 Accepts]: Start accepts. Automaton has 95164 states and 131163 transitions. Word has length 116 [2020-10-13 13:28:48,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:48,037 INFO L479 AbstractCegarLoop]: Abstraction has 95164 states and 131163 transitions. [2020-10-13 13:28:48,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 13:28:48,037 INFO L276 IsEmpty]: Start isEmpty. Operand 95164 states and 131163 transitions. [2020-10-13 13:28:48,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-13 13:28:48,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:48,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:28:48,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 13:28:48,039 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:48,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:48,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1572459651, now seen corresponding path program 1 times [2020-10-13 13:28:48,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:48,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903838970] [2020-10-13 13:28:48,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:48,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:48,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:48,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:48,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-13 13:28:48,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:28:48,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-10-13 13:28:48,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:48,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:48,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 13:28:48,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-13 13:28:48,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:48,686 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:28:48,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:48,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:48,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:48,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:48,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:48,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:28:48,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:48,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:48,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:48,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:48,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:48,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:48,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:48,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:48,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:28:48,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:48,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:28:48,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:48,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:48,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:48,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 13:28:48,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:48,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:28:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:48,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:48,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:48,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:48,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:48,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:48,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:48,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:48,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:48,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:48,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:48,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:28:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:48,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:48,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:48,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:48,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:48,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:28:48,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:48,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:48,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:48,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:48,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:48,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:28:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:48,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:48,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:48,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:48,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:48,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:48,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:48,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:48,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:48,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:48,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:48,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:28:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:48,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:48,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:48,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:48,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:48,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:48,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:48,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:48,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:48,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:48,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:48,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:28:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:48,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:48,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:48,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:48,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:48,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:48,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:48,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:48,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:48,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:48,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:48,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:28:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:48,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:48,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:48,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:48,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:48,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:48,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:48,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:48,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:48,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:48,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:48,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:28:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:48,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:48,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:48,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:48,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:48,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:48,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:48,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:48,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:48,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:48,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:48,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:28:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:48,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:48,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:48,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:48,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:28:48,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:28:48,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:48,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:48,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:48,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:28:48,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:48,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:48,968 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 13:28:48,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903838970] [2020-10-13 13:28:48,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:48,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 13:28:48,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059229752] [2020-10-13 13:28:48,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:28:48,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:48,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:28:48,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:28:48,970 INFO L87 Difference]: Start difference. First operand 95164 states and 131163 transitions. Second operand 12 states. [2020-10-13 13:28:49,142 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:28:50,865 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:29:03,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:29:03,540 INFO L93 Difference]: Finished difference Result 234338 states and 324926 transitions. [2020-10-13 13:29:03,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 13:29:03,540 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 116 [2020-10-13 13:29:03,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:29:03,916 INFO L225 Difference]: With dead ends: 234338 [2020-10-13 13:29:03,916 INFO L226 Difference]: Without dead ends: 139232 [2020-10-13 13:29:04,069 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=262, Invalid=794, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 13:29:04,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139232 states. [2020-10-13 13:29:14,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139232 to 136604. [2020-10-13 13:29:14,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136604 states. [2020-10-13 13:29:14,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136604 states to 136604 states and 186715 transitions. [2020-10-13 13:29:14,497 INFO L78 Accepts]: Start accepts. Automaton has 136604 states and 186715 transitions. Word has length 116 [2020-10-13 13:29:14,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:29:14,497 INFO L479 AbstractCegarLoop]: Abstraction has 136604 states and 186715 transitions. [2020-10-13 13:29:14,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:29:14,497 INFO L276 IsEmpty]: Start isEmpty. Operand 136604 states and 186715 transitions. [2020-10-13 13:29:14,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-13 13:29:14,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:29:14,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:29:14,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 13:29:14,499 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:29:14,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:29:14,499 INFO L82 PathProgramCache]: Analyzing trace with hash 536734634, now seen corresponding path program 1 times [2020-10-13 13:29:14,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:29:14,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2069181708] [2020-10-13 13:29:14,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:29:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:14,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:14,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:14,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:15,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:19,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:19,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 13:29:19,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:29:19,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:29:19,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:19,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:29:19,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-13 13:29:19,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:29:19,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:19,664 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:29:19,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:29:19,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:19,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:19,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:19,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:29:19,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:19,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:19,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:19,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:19,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:19,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:19,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:19,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:29:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:19,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:19,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:19,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:29:19,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:19,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:19,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:19,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:19,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:19,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:19,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:19,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:29:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:19,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:19,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:19,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:29:19,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:19,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:29:19,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:19,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:19,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:19,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:19,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:19,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:29:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:19,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:19,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:19,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 13:29:19,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:19,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:29:19,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:19,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:29:19,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:29:19,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:29:19,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:19,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 13:29:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:19,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:19,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:19,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:19,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:19,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:29:19,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:19,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:19,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:29:19,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:19,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:19,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:29:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:19,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:19,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:19,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:19,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:19,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:19,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:19,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:19,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:29:19,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:19,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:19,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 13:29:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:19,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:19,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:19,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:19,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:19,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:19,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:19,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:19,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:29:19,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:19,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:19,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-13 13:29:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:19,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:19,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:19,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:19,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:19,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:29:19,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:19,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:19,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:29:19,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:19,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:19,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 13:29:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:19,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:19,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:19,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:19,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:19,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:29:19,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:19,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:19,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:29:19,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:19,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:19,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:29:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:19,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:19,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:19,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:29:19,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:19,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:29:19,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:19,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:19,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:29:19,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:19,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:19,892 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 13:29:19,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2069181708] [2020-10-13 13:29:19,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:29:19,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:29:19,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972425134] [2020-10-13 13:29:19,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:29:19,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:29:19,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:29:19,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:29:19,894 INFO L87 Difference]: Start difference. First operand 136604 states and 186715 transitions. Second operand 13 states. [2020-10-13 13:29:20,291 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-13 13:29:20,433 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:29:36,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:29:36,100 INFO L93 Difference]: Finished difference Result 264541 states and 362965 transitions. [2020-10-13 13:29:36,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 13:29:36,101 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 117 [2020-10-13 13:29:36,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:29:36,503 INFO L225 Difference]: With dead ends: 264541 [2020-10-13 13:29:36,503 INFO L226 Difference]: Without dead ends: 168091 [2020-10-13 13:29:36,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:29:36,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168091 states.