/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=BIGGEST --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/array-tiling/pnr5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 10:28:21,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 10:28:21,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 10:28:21,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 10:28:21,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 10:28:21,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 10:28:21,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 10:28:21,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 10:28:21,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 10:28:21,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 10:28:21,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 10:28:21,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 10:28:21,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 10:28:21,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 10:28:21,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 10:28:21,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 10:28:21,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 10:28:21,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 10:28:21,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 10:28:21,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 10:28:21,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 10:28:21,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 10:28:21,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 10:28:21,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 10:28:21,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 10:28:21,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 10:28:21,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 10:28:21,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 10:28:21,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 10:28:21,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 10:28:21,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 10:28:21,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 10:28:21,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 10:28:21,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 10:28:21,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 10:28:21,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 10:28:21,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 10:28:21,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 10:28:21,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 10:28:21,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 10:28:21,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 10:28:21,518 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 [2020-10-12 10:28:21,541 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 10:28:21,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 10:28:21,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 10:28:21,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 10:28:21,542 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 10:28:21,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 10:28:21,543 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 10:28:21,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 10:28:21,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 10:28:21,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 10:28:21,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 10:28:21,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 10:28:21,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 10:28:21,544 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 10:28:21,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 10:28:21,545 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 10:28:21,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 10:28:21,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 10:28:21,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 10:28:21,545 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 10:28:21,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 10:28:21,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 10:28:21,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 10:28:21,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 10:28:21,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 10:28:21,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 10:28:21,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 10:28:21,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 10:28:21,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 10:28:21,547 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 10:28:21,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 10:28:21,832 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 10:28:21,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 10:28:21,837 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 10:28:21,837 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 10:28:21,838 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/pnr5.c [2020-10-12 10:28:21,897 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/77de20cf8/a01e3b9b85f948ba8d81017c9732dc71/FLAGf7595cfbc [2020-10-12 10:28:22,315 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 10:28:22,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-tiling/pnr5.c [2020-10-12 10:28:22,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/77de20cf8/a01e3b9b85f948ba8d81017c9732dc71/FLAGf7595cfbc [2020-10-12 10:28:22,674 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/77de20cf8/a01e3b9b85f948ba8d81017c9732dc71 [2020-10-12 10:28:22,684 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 10:28:22,685 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 10:28:22,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 10:28:22,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 10:28:22,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 10:28:22,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:28:22" (1/1) ... [2020-10-12 10:28:22,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742dacf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:28:22, skipping insertion in model container [2020-10-12 10:28:22,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:28:22" (1/1) ... [2020-10-12 10:28:22,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 10:28:22,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 10:28:22,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:28:22,911 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 10:28:22,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:28:23,037 INFO L208 MainTranslator]: Completed translation [2020-10-12 10:28:23,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:28:23 WrapperNode [2020-10-12 10:28:23,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 10:28:23,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 10:28:23,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 10:28:23,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 10:28:23,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:28:23" (1/1) ... [2020-10-12 10:28:23,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:28:23" (1/1) ... [2020-10-12 10:28:23,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:28:23" (1/1) ... [2020-10-12 10:28:23,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:28:23" (1/1) ... [2020-10-12 10:28:23,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:28:23" (1/1) ... [2020-10-12 10:28:23,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:28:23" (1/1) ... [2020-10-12 10:28:23,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:28:23" (1/1) ... [2020-10-12 10:28:23,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 10:28:23,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 10:28:23,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 10:28:23,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 10:28:23,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:28:23" (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 [2020-10-12 10:28:23,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 10:28:23,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 10:28:23,135 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 10:28:23,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 10:28:23,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadFromPort [2020-10-12 10:28:23,136 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 10:28:23,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 10:28:23,136 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 10:28:23,136 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 10:28:23,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 10:28:23,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 10:28:23,137 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 10:28:23,137 INFO L130 BoogieDeclarations]: Found specification of procedure ReadFromPort [2020-10-12 10:28:23,137 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 10:28:23,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 10:28:23,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 10:28:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 10:28:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 10:28:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 10:28:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 10:28:23,434 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 10:28:23,435 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-12 10:28:23,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:28:23 BoogieIcfgContainer [2020-10-12 10:28:23,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 10:28:23,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 10:28:23,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 10:28:23,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 10:28:23,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:28:22" (1/3) ... [2020-10-12 10:28:23,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a82c02a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:28:23, skipping insertion in model container [2020-10-12 10:28:23,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:28:23" (2/3) ... [2020-10-12 10:28:23,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a82c02a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:28:23, skipping insertion in model container [2020-10-12 10:28:23,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:28:23" (3/3) ... [2020-10-12 10:28:23,450 INFO L109 eAbstractionObserver]: Analyzing ICFG pnr5.c [2020-10-12 10:28:23,463 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 10:28:23,470 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 10:28:23,493 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 10:28:23,541 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 10:28:23,541 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 10:28:23,541 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 10:28:23,542 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 10:28:23,542 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 10:28:23,542 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 10:28:23,542 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 10:28:23,542 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 10:28:23,563 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-10-12 10:28:23,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-12 10:28:23,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:28:23,569 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] [2020-10-12 10:28:23,570 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:28:23,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:28:23,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1320123379, now seen corresponding path program 1 times [2020-10-12 10:28:23,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:28:23,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1021096952] [2020-10-12 10:28:23,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:28:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:23,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:23,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:23,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:23,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-12 10:28:23,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:28:23,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-12 10:28:23,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:23,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:23,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 10:28:23,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:23,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 10:28:23,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:28:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:23,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:24,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:24,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:24,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:24,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 10:28:24,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:24,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:24,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:24,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:24,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:24,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:28:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:24,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:24,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:24,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:24,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:24,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 10:28:24,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:24,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:24,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 10:28:24,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:24,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:24,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 10:28:24,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1021096952] [2020-10-12 10:28:24,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:28:24,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 10:28:24,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731456311] [2020-10-12 10:28:24,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-12 10:28:24,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:28:24,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-12 10:28:24,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 10:28:24,055 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 3 states. [2020-10-12 10:28:24,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:28:24,211 INFO L93 Difference]: Finished difference Result 89 states and 119 transitions. [2020-10-12 10:28:24,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 10:28:24,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-10-12 10:28:24,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:28:24,222 INFO L225 Difference]: With dead ends: 89 [2020-10-12 10:28:24,223 INFO L226 Difference]: Without dead ends: 45 [2020-10-12 10:28:24,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 10:28:24,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-12 10:28:24,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-12 10:28:24,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-12 10:28:24,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2020-10-12 10:28:24,274 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 21 [2020-10-12 10:28:24,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:28:24,275 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2020-10-12 10:28:24,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-12 10:28:24,275 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2020-10-12 10:28:24,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-12 10:28:24,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:28:24,277 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] [2020-10-12 10:28:24,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 10:28:24,278 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:28:24,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:28:24,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1902018782, now seen corresponding path program 1 times [2020-10-12 10:28:24,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:28:24,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779537929] [2020-10-12 10:28:24,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:28:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:24,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:24,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:24,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:24,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:24,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:24,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-12 10:28:24,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 10:28:24,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 562 [2020-10-12 10:28:24,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:24,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 10:28:24,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 10:28:24,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 10:28:24,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:24,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:28:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:24,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:24,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:24,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:24,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:24,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:24,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:24,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:24,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:24,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:24,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:24,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:28:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:24,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:24,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:25,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:25,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:25,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 10:28:25,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:25,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:28:25,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:25,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:28:25,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:25,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 10:28:25,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779537929] [2020-10-12 10:28:25,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:28:25,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 10:28:25,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755661506] [2020-10-12 10:28:25,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 10:28:25,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:28:25,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 10:28:25,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-12 10:28:25,043 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand 9 states. [2020-10-12 10:28:25,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:28:25,676 INFO L93 Difference]: Finished difference Result 78 states and 100 transitions. [2020-10-12 10:28:25,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 10:28:25,676 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-12 10:28:25,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:28:25,678 INFO L225 Difference]: With dead ends: 78 [2020-10-12 10:28:25,678 INFO L226 Difference]: Without dead ends: 66 [2020-10-12 10:28:25,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2020-10-12 10:28:25,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-12 10:28:25,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 46. [2020-10-12 10:28:25,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-12 10:28:25,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2020-10-12 10:28:25,701 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 21 [2020-10-12 10:28:25,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:28:25,701 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2020-10-12 10:28:25,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 10:28:25,701 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2020-10-12 10:28:25,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-12 10:28:25,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:28:25,705 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:28:25,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 10:28:25,706 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:28:25,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:28:25,706 INFO L82 PathProgramCache]: Analyzing trace with hash -628487538, now seen corresponding path program 1 times [2020-10-12 10:28:25,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:28:25,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [772746966] [2020-10-12 10:28:25,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:28:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:25,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:26,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:26,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 10:28:26,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:26,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-10-12 10:28:26,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:26,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 10:28:26,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 10:28:26,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 10:28:26,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:26,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:28:26,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:26,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:26,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:26,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:26,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:26,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:26,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:26,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:26,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:26,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:26,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:26,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:28:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:26,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:26,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:26,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:26,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:26,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 10:28:26,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:26,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:26,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:26,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:26,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:26,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:28:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:26,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:26,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:26,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:26,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:26,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:26,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:26,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:26,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:26,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:26,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:26,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:28:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:26,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:26,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:26,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:26,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:26,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:26,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:26,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:26,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:26,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:26,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:26,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:28:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:26,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:26,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:26,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:26,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:26,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:26,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:26,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:26,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:26,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:26,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:26,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:28:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:26,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:26,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:26,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:26,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:26,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:26,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:26,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:26,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:26,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:26,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:26,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:28:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:26,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:26,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:26,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:26,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:26,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:26,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:26,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:26,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:26,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:26,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:26,338 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-12 10:28:26,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [772746966] [2020-10-12 10:28:26,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:28:26,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 10:28:26,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841852221] [2020-10-12 10:28:26,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 10:28:26,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:28:26,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 10:28:26,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-12 10:28:26,341 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand 11 states. [2020-10-12 10:28:26,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:28:26,929 INFO L93 Difference]: Finished difference Result 72 states and 92 transitions. [2020-10-12 10:28:26,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 10:28:26,930 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 53 [2020-10-12 10:28:26,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:28:26,931 INFO L225 Difference]: With dead ends: 72 [2020-10-12 10:28:26,932 INFO L226 Difference]: Without dead ends: 70 [2020-10-12 10:28:26,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2020-10-12 10:28:26,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-12 10:28:26,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 52. [2020-10-12 10:28:26,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-12 10:28:26,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2020-10-12 10:28:26,957 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 53 [2020-10-12 10:28:26,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:28:26,957 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2020-10-12 10:28:26,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 10:28:26,958 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2020-10-12 10:28:26,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-12 10:28:26,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:28:26,963 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:28:26,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 10:28:26,963 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:28:26,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:28:26,964 INFO L82 PathProgramCache]: Analyzing trace with hash -548541077, now seen corresponding path program 1 times [2020-10-12 10:28:26,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:28:26,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495968884] [2020-10-12 10:28:26,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:28:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:27,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:27,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:27,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 10:28:27,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:27,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-10-12 10:28:27,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:27,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 10:28:27,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:28:27,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 10:28:27,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:27,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:28:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:27,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:27,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:27,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:27,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:27,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:27,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:27,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:27,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:27,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:27,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:27,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:28:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:27,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:27,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:27,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:27,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:27,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:27,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:27,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:27,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:27,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:27,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:27,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:28:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:27,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:27,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:27,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:27,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:27,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:27,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:27,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:27,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:28:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:27,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:27,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:27,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:27,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:27,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:27,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:27,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:27,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:27,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:27,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:27,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:28:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:27,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:27,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:27,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:27,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:27,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:27,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:27,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:27,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:27,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:27,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:27,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:28:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:27,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:27,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:27,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:27,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:27,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:27,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:27,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:27,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:27,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:27,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:27,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:28:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:27,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:27,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:27,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:27,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:27,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:27,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:27,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:27,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:27,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:27,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:27,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 10:28:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:27,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:27,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:27,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:27,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:27,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:27,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:27,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:27,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:27,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:27,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:27,614 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-12 10:28:27,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495968884] [2020-10-12 10:28:27,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:28:27,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 10:28:27,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981502973] [2020-10-12 10:28:27,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 10:28:27,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:28:27,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 10:28:27,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-12 10:28:27,617 INFO L87 Difference]: Start difference. First operand 52 states and 62 transitions. Second operand 11 states. [2020-10-12 10:28:28,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:28:28,327 INFO L93 Difference]: Finished difference Result 164 states and 233 transitions. [2020-10-12 10:28:28,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 10:28:28,327 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 61 [2020-10-12 10:28:28,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:28:28,332 INFO L225 Difference]: With dead ends: 164 [2020-10-12 10:28:28,333 INFO L226 Difference]: Without dead ends: 162 [2020-10-12 10:28:28,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2020-10-12 10:28:28,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-12 10:28:28,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 80. [2020-10-12 10:28:28,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-12 10:28:28,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 102 transitions. [2020-10-12 10:28:28,370 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 102 transitions. Word has length 61 [2020-10-12 10:28:28,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:28:28,372 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 102 transitions. [2020-10-12 10:28:28,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 10:28:28,373 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 102 transitions. [2020-10-12 10:28:28,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-12 10:28:28,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:28:28,374 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:28:28,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 10:28:28,375 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:28:28,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:28:28,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1392546579, now seen corresponding path program 1 times [2020-10-12 10:28:28,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:28:28,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395862002] [2020-10-12 10:28:28,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:28:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:28,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:28,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:28,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:28,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 10:28:28,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:28:28,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 482 [2020-10-12 10:28:28,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:28,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 10:28:28,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:28:28,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 10:28:28,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:29,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:28:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:29,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:29,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:29,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:29,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:29,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:29,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:29,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:29,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:29,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:29,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:29,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:28:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:29,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:29,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:29,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:29,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:29,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:28:29,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:29,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:29,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:29,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:29,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:29,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:28:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:29,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:29,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:29,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:29,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:29,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:29,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:29,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:29,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:29,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:29,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:29,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:28:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:29,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:29,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:29,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:29,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:29,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:29,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:29,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:29,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:29,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:29,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:29,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:28:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:29,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:29,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:29,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:29,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:29,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:29,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:29,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:29,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:29,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:28:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:29,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:29,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:29,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:29,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:29,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:29,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:29,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:29,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:29,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:29,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:29,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:28:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:29,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:29,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:29,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:29,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:29,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:29,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:29,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:29,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:29,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:29,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:29,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 10:28:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:29,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:29,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:29,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:29,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:29,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 10:28:29,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:29,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 10:28:29,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:29,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:28:29,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:29,186 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-12 10:28:29,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395862002] [2020-10-12 10:28:29,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:28:29,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-12 10:28:29,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943636139] [2020-10-12 10:28:29,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 10:28:29,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:28:29,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 10:28:29,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-12 10:28:29,188 INFO L87 Difference]: Start difference. First operand 80 states and 102 transitions. Second operand 15 states. [2020-10-12 10:28:30,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:28:30,769 INFO L93 Difference]: Finished difference Result 219 states and 318 transitions. [2020-10-12 10:28:30,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 10:28:30,769 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 61 [2020-10-12 10:28:30,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:28:30,772 INFO L225 Difference]: With dead ends: 219 [2020-10-12 10:28:30,772 INFO L226 Difference]: Without dead ends: 217 [2020-10-12 10:28:30,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=148, Invalid=908, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 10:28:30,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-12 10:28:30,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 106. [2020-10-12 10:28:30,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-12 10:28:30,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 141 transitions. [2020-10-12 10:28:30,795 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 141 transitions. Word has length 61 [2020-10-12 10:28:30,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:28:30,796 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 141 transitions. [2020-10-12 10:28:30,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 10:28:30,796 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 141 transitions. [2020-10-12 10:28:30,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-12 10:28:30,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:28:30,798 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:28:30,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 10:28:30,799 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:28:30,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:28:30,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1816193301, now seen corresponding path program 1 times [2020-10-12 10:28:30,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:28:30,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938194040] [2020-10-12 10:28:30,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:28:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:30,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:31,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:31,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 10:28:31,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:31,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-12 10:28:31,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:31,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 10:28:31,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 10:28:31,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 10:28:31,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:31,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:28:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:31,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:31,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:31,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:31,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:31,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:31,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:31,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:31,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:31,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:31,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:28:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:31,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:31,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:31,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:31,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:31,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:31,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:31,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:31,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:31,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:31,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:31,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:28:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:31,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:31,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:31,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:31,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:31,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:31,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:31,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:31,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:31,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:31,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:31,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:28:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:31,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:31,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:31,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:31,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:31,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:31,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:31,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:31,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:31,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:31,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:31,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:28:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:31,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:31,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:31,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:31,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:31,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:31,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:31,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:31,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:31,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:31,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:31,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:28:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:31,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:31,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:31,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:31,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:31,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:31,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:31,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:31,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:31,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:31,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:31,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:28:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:31,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:31,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:31,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:31,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:31,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:31,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:31,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:31,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:31,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:31,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:31,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 10:28:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:31,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:31,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:31,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:31,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:31,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:31,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:31,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:31,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:31,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:31,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:31,261 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-12 10:28:31,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938194040] [2020-10-12 10:28:31,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:28:31,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 10:28:31,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151641691] [2020-10-12 10:28:31,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 10:28:31,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:28:31,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 10:28:31,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-12 10:28:31,264 INFO L87 Difference]: Start difference. First operand 106 states and 141 transitions. Second operand 12 states. [2020-10-12 10:28:31,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:28:31,944 INFO L93 Difference]: Finished difference Result 177 states and 248 transitions. [2020-10-12 10:28:31,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 10:28:31,944 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 61 [2020-10-12 10:28:31,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:28:31,947 INFO L225 Difference]: With dead ends: 177 [2020-10-12 10:28:31,947 INFO L226 Difference]: Without dead ends: 175 [2020-10-12 10:28:31,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2020-10-12 10:28:31,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-12 10:28:31,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 60. [2020-10-12 10:28:31,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-12 10:28:31,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 70 transitions. [2020-10-12 10:28:31,960 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 70 transitions. Word has length 61 [2020-10-12 10:28:31,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:28:31,961 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 70 transitions. [2020-10-12 10:28:31,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 10:28:31,961 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 70 transitions. [2020-10-12 10:28:31,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-12 10:28:31,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:28:31,962 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:28:31,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 10:28:31,963 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:28:31,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:28:31,963 INFO L82 PathProgramCache]: Analyzing trace with hash -635198648, now seen corresponding path program 2 times [2020-10-12 10:28:31,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:28:31,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546508181] [2020-10-12 10:28:31,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:28:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:31,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:32,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:32,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:32,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 10:28:32,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:28:32,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 667 [2020-10-12 10:28:32,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:32,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 10:28:32,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:28:32,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 10:28:32,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:32,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:28:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:32,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:32,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:32,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:32,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:32,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:32,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:32,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:32,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:32,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:32,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:32,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:28:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:32,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:32,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:32,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:32,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:32,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:32,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:32,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:32,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:32,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:32,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:32,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:28:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:32,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:32,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:32,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:32,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:32,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:32,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:32,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:32,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:32,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:32,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:32,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:28:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:32,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:32,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:32,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:32,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:32,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:32,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:32,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:32,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:32,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:32,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:32,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:28:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:32,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:32,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:32,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:32,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:32,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:32,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:32,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:32,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:32,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:32,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:28:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:32,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:32,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:32,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:32,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:32,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:32,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:32,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:32,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:32,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:32,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:32,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:28:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:32,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:32,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:32,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:32,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:32,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:32,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:32,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:32,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:32,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 10:28:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:32,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:32,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:32,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:32,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:32,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 10:28:32,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:32,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 10:28:32,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:32,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:28:32,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:32,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 10:28:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:32,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:32,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:32,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:32,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:32,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:32,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:32,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:32,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:32,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:32,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:32,948 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-12 10:28:32,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546508181] [2020-10-12 10:28:32,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:28:32,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-12 10:28:32,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003530696] [2020-10-12 10:28:32,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 10:28:32,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:28:32,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 10:28:32,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2020-10-12 10:28:32,951 INFO L87 Difference]: Start difference. First operand 60 states and 70 transitions. Second operand 17 states. [2020-10-12 10:28:35,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:28:35,207 INFO L93 Difference]: Finished difference Result 255 states and 369 transitions. [2020-10-12 10:28:35,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-12 10:28:35,207 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 69 [2020-10-12 10:28:35,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:28:35,211 INFO L225 Difference]: With dead ends: 255 [2020-10-12 10:28:35,211 INFO L226 Difference]: Without dead ends: 253 [2020-10-12 10:28:35,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=264, Invalid=1898, Unknown=0, NotChecked=0, Total=2162 [2020-10-12 10:28:35,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-10-12 10:28:35,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 92. [2020-10-12 10:28:35,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-12 10:28:35,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 115 transitions. [2020-10-12 10:28:35,253 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 115 transitions. Word has length 69 [2020-10-12 10:28:35,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:28:35,256 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 115 transitions. [2020-10-12 10:28:35,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 10:28:35,256 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 115 transitions. [2020-10-12 10:28:35,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-12 10:28:35,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:28:35,260 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:28:35,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 10:28:35,260 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:28:35,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:28:35,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1294730170, now seen corresponding path program 1 times [2020-10-12 10:28:35,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:28:35,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872059782] [2020-10-12 10:28:35,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:28:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:35,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:35,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:35,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 10:28:35,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:35,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-10-12 10:28:35,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:35,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 10:28:35,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:28:35,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 10:28:35,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:35,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:28:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:35,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:35,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:35,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:35,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:35,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:35,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:35,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:35,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:35,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:35,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:35,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:28:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:35,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:35,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:35,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:35,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:35,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:35,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:35,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:35,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:35,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:35,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:35,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:28:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:35,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:35,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:35,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:35,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:35,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:35,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:35,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:35,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:35,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:35,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:35,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:28:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:35,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:35,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:35,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:35,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:35,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:35,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:35,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:35,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:35,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:35,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:35,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:28:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:35,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:35,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:35,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:35,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:35,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:35,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:35,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:35,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:35,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:35,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:35,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:28:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:35,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:35,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:35,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:35,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:35,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:35,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:35,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:35,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:35,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:35,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:35,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:28:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:35,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:35,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:35,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:35,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:35,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:35,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:35,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:35,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:35,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:35,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:35,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 10:28:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:35,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:35,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:35,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:35,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:35,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:35,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:35,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:35,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 10:28:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:35,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:35,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:35,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:35,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:35,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:35,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:35,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:35,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:35,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:35,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:35,915 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-12 10:28:35,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [872059782] [2020-10-12 10:28:35,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:28:35,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 10:28:35,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182460648] [2020-10-12 10:28:35,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 10:28:35,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:28:35,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 10:28:35,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-12 10:28:35,917 INFO L87 Difference]: Start difference. First operand 92 states and 115 transitions. Second operand 12 states. [2020-10-12 10:28:37,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:28:37,146 INFO L93 Difference]: Finished difference Result 287 states and 415 transitions. [2020-10-12 10:28:37,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 10:28:37,147 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-10-12 10:28:37,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:28:37,152 INFO L225 Difference]: With dead ends: 287 [2020-10-12 10:28:37,152 INFO L226 Difference]: Without dead ends: 285 [2020-10-12 10:28:37,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=532, Unknown=0, NotChecked=0, Total=650 [2020-10-12 10:28:37,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-10-12 10:28:37,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 109. [2020-10-12 10:28:37,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-12 10:28:37,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 143 transitions. [2020-10-12 10:28:37,186 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 143 transitions. Word has length 69 [2020-10-12 10:28:37,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:28:37,187 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 143 transitions. [2020-10-12 10:28:37,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 10:28:37,187 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 143 transitions. [2020-10-12 10:28:37,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-12 10:28:37,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:28:37,191 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:28:37,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 10:28:37,191 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:28:37,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:28:37,192 INFO L82 PathProgramCache]: Analyzing trace with hash -619679930, now seen corresponding path program 1 times [2020-10-12 10:28:37,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:28:37,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549811614] [2020-10-12 10:28:37,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:28:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:37,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:37,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:37,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 10:28:37,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:37,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-10-12 10:28:37,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:37,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 10:28:37,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 10:28:37,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 10:28:37,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:37,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:28:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:37,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:37,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:37,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:37,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:37,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 10:28:37,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:37,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:37,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:37,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:37,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:37,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:28:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:37,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:37,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:37,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:37,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:37,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 10:28:37,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:37,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:37,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:37,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:37,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:37,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:28:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:37,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:37,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:37,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:37,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:37,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 10:28:37,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:37,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:37,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:37,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:37,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:37,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:28:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:37,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:37,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:37,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:37,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:37,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:37,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:37,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:37,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:37,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:37,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:37,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:28:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:37,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:37,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:37,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:37,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:37,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:37,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:37,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:37,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:37,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:37,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:37,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:28:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:37,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:37,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:37,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:37,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:37,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:37,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:37,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:37,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:37,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:37,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:37,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:28:37,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:37,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:37,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:37,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:37,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:37,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:37,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:37,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:37,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:37,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:37,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:37,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 10:28:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:37,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:37,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:37,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:37,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:37,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:37,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:37,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:37,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:37,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:37,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:37,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 10:28:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:37,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:37,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:37,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:37,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:37,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:37,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:37,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:37,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:37,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:37,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:37,853 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-12 10:28:37,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549811614] [2020-10-12 10:28:37,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:28:37,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 10:28:37,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195321950] [2020-10-12 10:28:37,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 10:28:37,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:28:37,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 10:28:37,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-10-12 10:28:37,860 INFO L87 Difference]: Start difference. First operand 109 states and 143 transitions. Second operand 13 states. [2020-10-12 10:28:38,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:28:38,808 INFO L93 Difference]: Finished difference Result 213 states and 303 transitions. [2020-10-12 10:28:38,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 10:28:38,808 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 69 [2020-10-12 10:28:38,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:28:38,810 INFO L225 Difference]: With dead ends: 213 [2020-10-12 10:28:38,810 INFO L226 Difference]: Without dead ends: 211 [2020-10-12 10:28:38,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2020-10-12 10:28:38,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-10-12 10:28:38,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 68. [2020-10-12 10:28:38,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-12 10:28:38,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions. [2020-10-12 10:28:38,826 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 78 transitions. Word has length 69 [2020-10-12 10:28:38,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:28:38,826 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 78 transitions. [2020-10-12 10:28:38,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 10:28:38,826 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions. [2020-10-12 10:28:38,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 10:28:38,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:28:38,834 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:28:38,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 10:28:38,834 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:28:38,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:28:38,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1853346779, now seen corresponding path program 3 times [2020-10-12 10:28:38,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:28:38,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506576521] [2020-10-12 10:28:38,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:28:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:38,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:39,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:39,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 10:28:39,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:39,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-12 10:28:39,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 10:28:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:28:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 10:28:39,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:39,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:28:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:39,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:39,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:39,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:39,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:39,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:39,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:39,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:39,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:39,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:39,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:39,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:28:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:39,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:39,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:39,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:39,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:39,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:39,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:39,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:39,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:39,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:39,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:39,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:28:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:39,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:39,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:39,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:39,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:39,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:39,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:39,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:39,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:39,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:39,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:39,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:28:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:39,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:39,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:39,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:39,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:39,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:39,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:39,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:39,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:39,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:39,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:39,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:28:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:39,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:39,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:39,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:39,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:39,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:39,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:39,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:39,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:39,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:39,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:39,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:28:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:39,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:39,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:39,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:39,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:39,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:39,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:39,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:39,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:39,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:39,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:39,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:28:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:39,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:39,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:39,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:39,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:39,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:39,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:39,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:39,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:39,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:39,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:39,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 10:28:39,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:39,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:39,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:39,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:39,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:39,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 10:28:39,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:39,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:39,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:39,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:39,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:39,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 10:28:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:39,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:39,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:39,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:39,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:39,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:39,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:39,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:39,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:39,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:39,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:39,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:28:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:39,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:39,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:39,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:39,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:39,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:39,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:39,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:39,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:39,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:39,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:39,355 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-10-12 10:28:39,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506576521] [2020-10-12 10:28:39,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:28:39,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 10:28:39,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560872333] [2020-10-12 10:28:39,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 10:28:39,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:28:39,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 10:28:39,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-10-12 10:28:39,358 INFO L87 Difference]: Start difference. First operand 68 states and 78 transitions. Second operand 13 states. [2020-10-12 10:28:41,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:28:41,306 INFO L93 Difference]: Finished difference Result 356 states and 522 transitions. [2020-10-12 10:28:41,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-12 10:28:41,307 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 77 [2020-10-12 10:28:41,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:28:41,309 INFO L225 Difference]: With dead ends: 356 [2020-10-12 10:28:41,310 INFO L226 Difference]: Without dead ends: 354 [2020-10-12 10:28:41,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=278, Invalid=1362, Unknown=0, NotChecked=0, Total=1640 [2020-10-12 10:28:41,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-10-12 10:28:41,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 104. [2020-10-12 10:28:41,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-12 10:28:41,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 128 transitions. [2020-10-12 10:28:41,333 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 128 transitions. Word has length 77 [2020-10-12 10:28:41,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:28:41,333 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 128 transitions. [2020-10-12 10:28:41,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 10:28:41,333 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-10-12 10:28:41,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 10:28:41,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:28:41,335 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:28:41,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 10:28:41,335 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:28:41,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:28:41,335 INFO L82 PathProgramCache]: Analyzing trace with hash 596253351, now seen corresponding path program 1 times [2020-10-12 10:28:41,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:28:41,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995844799] [2020-10-12 10:28:41,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:28:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:41,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:41,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:41,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:42,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:42,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 10:28:42,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:28:42,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1162 [2020-10-12 10:28:42,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:42,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 10:28:42,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:28:42,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 10:28:42,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:28:42,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:28:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:42,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:42,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:42,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:42,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:42,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:28:42,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:42,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:42,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:42,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:42,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:42,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:28:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:42,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:42,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:42,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:42,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:42,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:42,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:42,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:42,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:42,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:42,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:42,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:28:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:42,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:42,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:42,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:42,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:42,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:42,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:42,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:42,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:42,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:42,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:42,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:28:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:42,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:42,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:42,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:42,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:42,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:42,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:42,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:42,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:42,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:42,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:42,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:28:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:42,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:42,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:42,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:42,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:42,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:42,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:42,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:42,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:42,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:42,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:42,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:28:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:42,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:42,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:42,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:42,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:42,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:42,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:42,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:42,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:42,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:42,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:42,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:28:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:42,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:42,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:42,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:42,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:42,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:42,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:42,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:42,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:42,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:42,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:42,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 10:28:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:42,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:42,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:42,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:42,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:42,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:42,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:42,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 10:28:42,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:42,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:28:42,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:42,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 10:28:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:42,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:42,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:42,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:42,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:42,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:42,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:42,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:42,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:42,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:42,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:42,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:28:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:42,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:42,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:42,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:42,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:42,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 10:28:42,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:42,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:42,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:42,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:42,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:42,895 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 5 proven. 26 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-12 10:28:42,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1995844799] [2020-10-12 10:28:42,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:28:42,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-12 10:28:42,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491928444] [2020-10-12 10:28:42,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 10:28:42,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:28:42,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 10:28:42,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2020-10-12 10:28:42,899 INFO L87 Difference]: Start difference. First operand 104 states and 128 transitions. Second operand 18 states. [2020-10-12 10:28:46,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:28:46,866 INFO L93 Difference]: Finished difference Result 455 states and 666 transitions. [2020-10-12 10:28:46,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-10-12 10:28:46,867 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 77 [2020-10-12 10:28:46,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:28:46,870 INFO L225 Difference]: With dead ends: 455 [2020-10-12 10:28:46,870 INFO L226 Difference]: Without dead ends: 453 [2020-10-12 10:28:46,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1442 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=581, Invalid=4531, Unknown=0, NotChecked=0, Total=5112 [2020-10-12 10:28:46,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-10-12 10:28:46,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 121. [2020-10-12 10:28:46,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-12 10:28:46,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 156 transitions. [2020-10-12 10:28:46,897 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 156 transitions. Word has length 77 [2020-10-12 10:28:46,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:28:46,898 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 156 transitions. [2020-10-12 10:28:46,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 10:28:46,898 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 156 transitions. [2020-10-12 10:28:46,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 10:28:46,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:28:46,899 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:28:46,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 10:28:46,900 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:28:46,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:28:46,900 INFO L82 PathProgramCache]: Analyzing trace with hash -664663899, now seen corresponding path program 1 times [2020-10-12 10:28:46,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:28:46,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40789977] [2020-10-12 10:28:46,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:28:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:46,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:47,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:47,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:47,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 10:28:47,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:28:47,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 715 [2020-10-12 10:28:47,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:47,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 10:28:47,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:28:47,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 10:28:47,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:47,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:28:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:47,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:47,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:47,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:47,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:47,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:47,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:47,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:47,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:28:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:47,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:47,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:47,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:47,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:47,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:28:47,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:47,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:47,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:47,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:47,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:47,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:28:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:47,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:47,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:47,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:47,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:47,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:47,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:47,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:47,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:47,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:47,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:47,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:28:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:47,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:47,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:47,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:47,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:47,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:28:47,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:47,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:47,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:47,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:47,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:47,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:28:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:47,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:47,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:47,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:47,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:47,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:28:47,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:47,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:47,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:28:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:47,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:47,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:47,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:47,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:47,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:47,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:47,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:47,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:47,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:47,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:47,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:28:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:47,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:47,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:47,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:47,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:47,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:47,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:47,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:47,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:47,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:47,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:47,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 10:28:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:47,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:47,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:47,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:47,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:47,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:47,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:47,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:47,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:47,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:47,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:47,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 10:28:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:47,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:47,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:47,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:47,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:47,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:47,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:47,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:47,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:47,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:47,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:47,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:28:47,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:47,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:47,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:47,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:47,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:47,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:47,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:47,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 10:28:47,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:47,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:28:47,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:47,926 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 11 proven. 20 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-12 10:28:47,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40789977] [2020-10-12 10:28:47,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:28:47,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-12 10:28:47,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169026044] [2020-10-12 10:28:47,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 10:28:47,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:28:47,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 10:28:47,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2020-10-12 10:28:47,928 INFO L87 Difference]: Start difference. First operand 121 states and 156 transitions. Second operand 18 states. [2020-10-12 10:28:49,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:28:49,821 INFO L93 Difference]: Finished difference Result 308 states and 432 transitions. [2020-10-12 10:28:49,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 10:28:49,821 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 77 [2020-10-12 10:28:49,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:28:49,823 INFO L225 Difference]: With dead ends: 308 [2020-10-12 10:28:49,823 INFO L226 Difference]: Without dead ends: 306 [2020-10-12 10:28:49,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=210, Invalid=1512, Unknown=0, NotChecked=0, Total=1722 [2020-10-12 10:28:49,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-10-12 10:28:49,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 127. [2020-10-12 10:28:49,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-12 10:28:49,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 166 transitions. [2020-10-12 10:28:49,845 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 166 transitions. Word has length 77 [2020-10-12 10:28:49,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:28:49,845 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 166 transitions. [2020-10-12 10:28:49,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 10:28:49,845 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 166 transitions. [2020-10-12 10:28:49,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 10:28:49,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:28:49,846 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:28:49,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 10:28:49,846 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:28:49,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:28:49,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1558150237, now seen corresponding path program 1 times [2020-10-12 10:28:49,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:28:49,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056372825] [2020-10-12 10:28:49,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:28:49,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:49,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:50,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:50,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 10:28:50,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:50,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-12 10:28:50,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:50,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 10:28:50,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 10:28:50,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-12 10:28:50,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:50,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:28:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:50,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:50,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:50,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:50,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:50,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:28:50,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:50,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:50,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:50,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:50,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:50,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:28:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:50,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:50,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:50,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:50,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:50,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:50,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:50,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:50,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:50,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:50,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:50,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:28:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:50,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:50,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:50,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:50,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:50,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:50,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:50,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:50,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:50,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:50,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:50,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:28:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:50,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:50,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:50,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:50,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:50,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:50,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:50,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:50,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:50,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:50,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:50,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:28:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:50,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:50,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:50,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:50,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:50,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:50,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:50,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:50,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:50,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:50,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:50,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:28:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:50,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:50,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:50,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:50,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:50,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:50,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:50,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:50,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:50,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:50,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:50,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:28:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:50,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:50,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:50,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:50,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:50,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:50,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:50,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:50,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:50,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:50,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:50,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 10:28:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:50,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:50,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:50,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:50,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:50,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:50,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:50,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:50,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:50,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:50,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:50,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 10:28:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:50,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:50,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:50,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:50,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:50,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:50,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:50,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:50,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:50,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:50,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:50,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:28:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:50,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:50,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:50,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:50,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:50,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:50,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:50,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:50,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:50,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:50,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:50,357 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-10-12 10:28:50,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056372825] [2020-10-12 10:28:50,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:28:50,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 10:28:50,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539489380] [2020-10-12 10:28:50,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 10:28:50,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:28:50,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 10:28:50,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-12 10:28:50,359 INFO L87 Difference]: Start difference. First operand 127 states and 166 transitions. Second operand 14 states. [2020-10-12 10:28:53,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:28:53,064 INFO L93 Difference]: Finished difference Result 459 states and 670 transitions. [2020-10-12 10:28:53,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-12 10:28:53,065 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 77 [2020-10-12 10:28:53,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:28:53,069 INFO L225 Difference]: With dead ends: 459 [2020-10-12 10:28:53,069 INFO L226 Difference]: Without dead ends: 457 [2020-10-12 10:28:53,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=381, Invalid=1689, Unknown=0, NotChecked=0, Total=2070 [2020-10-12 10:28:53,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-10-12 10:28:53,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 133. [2020-10-12 10:28:53,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-12 10:28:53,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 176 transitions. [2020-10-12 10:28:53,098 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 176 transitions. Word has length 77 [2020-10-12 10:28:53,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:28:53,098 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 176 transitions. [2020-10-12 10:28:53,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 10:28:53,099 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 176 transitions. [2020-10-12 10:28:53,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 10:28:53,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:28:53,100 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:28:53,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 10:28:53,100 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:28:53,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:28:53,101 INFO L82 PathProgramCache]: Analyzing trace with hash -17266686, now seen corresponding path program 4 times [2020-10-12 10:28:53,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:28:53,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821922705] [2020-10-12 10:28:53,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:28:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:53,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:53,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:53,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:54,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:54,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 10:28:54,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:28:54,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1089 [2020-10-12 10:28:54,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-12 10:28:54,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:28:54,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 10:28:54,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:54,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:28:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:54,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:54,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:54,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:54,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:54,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:28:54,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:54,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:54,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:54,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:54,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:54,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:28:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:54,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:54,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:54,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:54,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:54,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:28:54,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:54,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:54,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:54,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:54,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:54,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:28:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:54,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:54,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:54,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:54,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:54,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:28:54,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:54,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:54,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:54,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:54,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:54,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:28:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:54,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:54,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:54,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:54,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:54,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:54,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:54,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:54,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:54,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:54,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:28:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:54,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:54,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:54,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:54,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:54,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:54,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:54,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:54,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:54,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:54,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:54,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:28:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:54,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:54,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:54,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:54,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:54,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:54,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:54,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:54,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:54,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:54,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:54,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:28:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:54,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:54,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:54,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:54,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:54,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:54,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:54,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:54,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 10:28:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:54,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:54,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:54,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:54,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:54,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:28:54,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:54,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 10:28:54,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:54,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:28:54,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:54,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 10:28:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:54,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:54,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:54,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:54,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:54,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:54,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:54,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:54,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:54,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:54,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:54,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:28:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:54,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:54,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:54,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:54,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:54,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:54,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:54,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:54,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:54,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:54,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:54,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 10:28:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:54,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:54,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:54,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:54,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:54,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:28:54,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:54,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:54,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:54,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:54,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:54,512 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 7 proven. 43 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-12 10:28:54,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821922705] [2020-10-12 10:28:54,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:28:54,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-12 10:28:54,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762138899] [2020-10-12 10:28:54,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 10:28:54,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:28:54,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 10:28:54,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2020-10-12 10:28:54,515 INFO L87 Difference]: Start difference. First operand 133 states and 176 transitions. Second operand 18 states. [2020-10-12 10:28:58,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:28:58,465 INFO L93 Difference]: Finished difference Result 493 states and 727 transitions. [2020-10-12 10:28:58,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-10-12 10:28:58,465 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 85 [2020-10-12 10:28:58,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:28:58,475 INFO L225 Difference]: With dead ends: 493 [2020-10-12 10:28:58,475 INFO L226 Difference]: Without dead ends: 491 [2020-10-12 10:28:58,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1743 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=660, Invalid=5346, Unknown=0, NotChecked=0, Total=6006 [2020-10-12 10:28:58,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-10-12 10:28:58,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 175. [2020-10-12 10:28:58,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-10-12 10:28:58,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 234 transitions. [2020-10-12 10:28:58,533 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 234 transitions. Word has length 85 [2020-10-12 10:28:58,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:28:58,535 INFO L479 AbstractCegarLoop]: Abstraction has 175 states and 234 transitions. [2020-10-12 10:28:58,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 10:28:58,535 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 234 transitions. [2020-10-12 10:28:58,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 10:28:58,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:28:58,537 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:28:58,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 10:28:58,538 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:28:58,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:28:58,538 INFO L82 PathProgramCache]: Analyzing trace with hash -440913408, now seen corresponding path program 1 times [2020-10-12 10:28:58,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:28:58,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2094011894] [2020-10-12 10:28:58,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:28:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:58,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:58,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:58,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 10:28:58,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:58,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-12 10:28:58,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:58,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 10:28:58,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:28:58,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 10:28:58,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:58,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:28:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:58,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:58,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:58,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:58,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:58,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:28:58,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:58,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:58,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:58,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:58,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:58,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:28:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:58,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:58,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:58,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:58,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:58,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:28:58,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:58,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:28:58,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:58,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:28:58,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:58,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:28:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:58,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:58,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:58,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:58,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:58,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:58,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:58,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:58,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:58,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:58,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:58,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:28:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:58,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:58,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:58,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:58,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:58,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:28:58,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:58,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:58,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:58,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:58,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:58,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:28:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:58,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:58,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:58,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:58,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:58,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:28:58,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:58,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:58,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:58,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:58,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:58,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:28:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:58,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:58,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:58,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:58,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:58,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:28:58,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:58,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:58,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:58,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:58,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:58,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:28:58,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:58,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:58,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:58,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:28:58,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:58,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:28:58,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:58,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:58,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:58,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:28:58,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:58,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 10:28:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:58,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:58,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:58,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:58,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:58,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:28:58,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:58,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:58,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:58,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 10:28:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:58,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:58,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:58,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:58,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:58,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:28:58,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:58,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:58,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:58,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:58,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:58,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:28:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:58,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:58,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:58,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:58,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:58,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:28:58,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:58,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:58,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:58,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:58,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:58,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 10:28:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:28:58,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:28:58,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:28:58,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:28:58,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:28:58,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:28:58,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:28:58,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:28:58,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:28:58,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:28:58,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:28:58,971 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 8 proven. 33 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-12 10:28:58,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2094011894] [2020-10-12 10:28:58,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:28:58,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 10:28:58,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124681562] [2020-10-12 10:28:58,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 10:28:58,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:28:58,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 10:28:58,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-12 10:28:58,973 INFO L87 Difference]: Start difference. First operand 175 states and 234 transitions. Second operand 13 states. [2020-10-12 10:29:01,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:29:01,551 INFO L93 Difference]: Finished difference Result 666 states and 992 transitions. [2020-10-12 10:29:01,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-12 10:29:01,551 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 85 [2020-10-12 10:29:01,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:29:01,555 INFO L225 Difference]: With dead ends: 666 [2020-10-12 10:29:01,555 INFO L226 Difference]: Without dead ends: 664 [2020-10-12 10:29:01,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=295, Invalid=1597, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 10:29:01,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2020-10-12 10:29:01,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 241. [2020-10-12 10:29:01,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-12 10:29:01,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 337 transitions. [2020-10-12 10:29:01,604 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 337 transitions. Word has length 85 [2020-10-12 10:29:01,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:29:01,604 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 337 transitions. [2020-10-12 10:29:01,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 10:29:01,604 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 337 transitions. [2020-10-12 10:29:01,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 10:29:01,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:29:01,606 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:29:01,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 10:29:01,607 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:29:01,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:29:01,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1668913152, now seen corresponding path program 2 times [2020-10-12 10:29:01,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:29:01,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278848540] [2020-10-12 10:29:01,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:29:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:01,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:01,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:02,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:02,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 10:29:02,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:29:02,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 608 [2020-10-12 10:29:02,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:02,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 10:29:02,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:29:02,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 10:29:02,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:02,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:29:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:02,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:02,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:02,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:02,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:02,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:02,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:02,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:29:02,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:02,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:29:02,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:02,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:29:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:02,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:02,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:02,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:02,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:02,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:02,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:02,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:29:02,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:02,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:29:02,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:02,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:29:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:02,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:02,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:02,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:02,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:02,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:02,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:02,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:02,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:02,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:02,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:02,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:29:02,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:02,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:02,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:02,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:02,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:02,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:02,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:02,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:02,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:02,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:02,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:02,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:29:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:02,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:02,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:02,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:02,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:02,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:02,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:02,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:02,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:02,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:02,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:02,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:29:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:02,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:02,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:02,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:02,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:02,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:02,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:02,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:02,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:02,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:02,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:02,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:29:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:02,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:02,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:02,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:02,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:02,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:02,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:02,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:02,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:02,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:02,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:02,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 10:29:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:02,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:02,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:02,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:02,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:02,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:02,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:02,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:02,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:02,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:02,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:02,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 10:29:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:02,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:02,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:02,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:02,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:02,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:02,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:02,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:02,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:02,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:02,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:02,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:29:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:02,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:02,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:02,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:02,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:02,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:02,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:02,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 10:29:02,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:02,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:29:02,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:02,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 10:29:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:02,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:02,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:02,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:02,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:02,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:02,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:02,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:02,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:02,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:02,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:02,577 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 13 proven. 37 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-12 10:29:02,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278848540] [2020-10-12 10:29:02,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:29:02,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-12 10:29:02,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602146688] [2020-10-12 10:29:02,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 10:29:02,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:29:02,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 10:29:02,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2020-10-12 10:29:02,581 INFO L87 Difference]: Start difference. First operand 241 states and 337 transitions. Second operand 18 states. [2020-10-12 10:29:05,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:29:05,010 INFO L93 Difference]: Finished difference Result 593 states and 871 transitions. [2020-10-12 10:29:05,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-12 10:29:05,011 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 85 [2020-10-12 10:29:05,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:29:05,015 INFO L225 Difference]: With dead ends: 593 [2020-10-12 10:29:05,015 INFO L226 Difference]: Without dead ends: 591 [2020-10-12 10:29:05,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=250, Invalid=2102, Unknown=0, NotChecked=0, Total=2352 [2020-10-12 10:29:05,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2020-10-12 10:29:05,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 241. [2020-10-12 10:29:05,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-12 10:29:05,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 337 transitions. [2020-10-12 10:29:05,061 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 337 transitions. Word has length 85 [2020-10-12 10:29:05,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:29:05,062 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 337 transitions. [2020-10-12 10:29:05,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 10:29:05,062 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 337 transitions. [2020-10-12 10:29:05,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 10:29:05,064 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:29:05,064 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:29:05,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 10:29:05,064 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:29:05,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:29:05,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1225012478, now seen corresponding path program 1 times [2020-10-12 10:29:05,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:29:05,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813822847] [2020-10-12 10:29:05,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:29:05,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:05,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:05,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:05,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 10:29:05,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:05,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-12 10:29:05,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:05,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 10:29:05,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 10:29:05,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-12 10:29:05,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:05,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:29:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:05,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:05,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:05,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:05,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:05,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:05,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:05,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:29:05,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:05,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:29:05,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:05,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:29:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:05,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:05,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:05,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:05,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:05,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:05,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:05,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:05,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:05,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:05,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:05,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:29:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:05,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:05,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:05,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:05,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:05,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:05,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:05,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:05,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:05,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:05,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:29:05,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:29:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:05,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:05,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:05,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:05,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:05,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:05,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:05,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:05,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:29:05,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:29:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:05,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:05,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:05,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:05,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:05,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:05,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:05,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:05,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:05,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:05,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:29:05,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:29:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:05,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:05,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:05,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:05,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:05,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:05,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:05,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:05,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:29:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:05,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:05,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:05,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:05,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:05,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:05,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:05,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:05,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:05,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:05,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:29:05,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 10:29:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:05,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:05,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:05,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:05,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:05,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:05,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:05,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:05,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:05,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:05,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:05,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 10:29:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:05,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:05,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:05,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:05,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:05,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:05,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:05,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:05,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:29:05,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:29:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:05,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:05,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:05,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:05,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:05,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:05,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:05,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:05,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:05,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:05,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:29:05,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 10:29:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:05,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:05,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:05,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:05,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:05,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:05,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:05,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:05,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:05,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:05,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:29:05,611 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 8 proven. 33 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-12 10:29:05,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813822847] [2020-10-12 10:29:05,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:29:05,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 10:29:05,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911544203] [2020-10-12 10:29:05,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 10:29:05,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:29:05,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 10:29:05,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-12 10:29:05,613 INFO L87 Difference]: Start difference. First operand 241 states and 337 transitions. Second operand 14 states. [2020-10-12 10:29:06,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:29:06,989 INFO L93 Difference]: Finished difference Result 557 states and 838 transitions. [2020-10-12 10:29:06,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 10:29:06,990 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 85 [2020-10-12 10:29:06,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:29:06,995 INFO L225 Difference]: With dead ends: 557 [2020-10-12 10:29:06,995 INFO L226 Difference]: Without dead ends: 555 [2020-10-12 10:29:06,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=144, Invalid=726, Unknown=0, NotChecked=0, Total=870 [2020-10-12 10:29:06,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-10-12 10:29:07,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 145. [2020-10-12 10:29:07,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-12 10:29:07,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 189 transitions. [2020-10-12 10:29:07,029 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 189 transitions. Word has length 85 [2020-10-12 10:29:07,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:29:07,029 INFO L479 AbstractCegarLoop]: Abstraction has 145 states and 189 transitions. [2020-10-12 10:29:07,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 10:29:07,029 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 189 transitions. [2020-10-12 10:29:07,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-12 10:29:07,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:29:07,031 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:29:07,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 10:29:07,031 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:29:07,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:29:07,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1324463839, now seen corresponding path program 5 times [2020-10-12 10:29:07,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:29:07,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520245040] [2020-10-12 10:29:07,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:29:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:07,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:07,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:07,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:07,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 10:29:07,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:29:07,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 518 [2020-10-12 10:29:07,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:07,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 10:29:07,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 10:29:07,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-12 10:29:07,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:07,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:29:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:07,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:07,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:07,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:07,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:07,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:07,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:07,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:29:07,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:07,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:29:07,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:07,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:29:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:07,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:07,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:07,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:07,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:07,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:07,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:07,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:29:07,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:07,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:29:07,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:07,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:29:07,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:07,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:07,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:07,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:07,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:07,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:07,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:07,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:07,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:07,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:07,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:07,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:29:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:07,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:07,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:07,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:07,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:07,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:07,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:07,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:07,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:07,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:07,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:07,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:29:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:07,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:07,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:07,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:07,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:07,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:07,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:07,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:07,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:07,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:07,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:07,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:29:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:07,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:07,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:07,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:07,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:07,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:07,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:07,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:07,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:07,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:07,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:07,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:29:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:07,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:07,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:07,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:07,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:07,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:07,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:07,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:07,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:07,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:07,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:07,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 10:29:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:07,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:07,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:07,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:07,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:07,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:07,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:07,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:07,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:07,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:07,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:07,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 10:29:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:07,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:07,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:07,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:07,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:07,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:07,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:07,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:07,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:07,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:07,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:07,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:29:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:07,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:07,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:07,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:07,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:07,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:07,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:07,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:07,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:07,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:07,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:07,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 10:29:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:07,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:07,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:07,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:07,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:07,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:07,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:07,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:07,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:07,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:07,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:07,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 10:29:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:07,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:07,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:07,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:07,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:07,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:07,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:07,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:07,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:07,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:07,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:07,889 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 60 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-12 10:29:07,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520245040] [2020-10-12 10:29:07,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:29:07,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-12 10:29:07,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900530885] [2020-10-12 10:29:07,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 10:29:07,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:29:07,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 10:29:07,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-10-12 10:29:07,891 INFO L87 Difference]: Start difference. First operand 145 states and 189 transitions. Second operand 15 states. [2020-10-12 10:29:08,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:29:08,891 INFO L93 Difference]: Finished difference Result 243 states and 315 transitions. [2020-10-12 10:29:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 10:29:08,892 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 93 [2020-10-12 10:29:08,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:29:08,894 INFO L225 Difference]: With dead ends: 243 [2020-10-12 10:29:08,895 INFO L226 Difference]: Without dead ends: 191 [2020-10-12 10:29:08,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=655, Unknown=0, NotChecked=0, Total=812 [2020-10-12 10:29:08,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-10-12 10:29:08,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 155. [2020-10-12 10:29:08,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-12 10:29:08,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 203 transitions. [2020-10-12 10:29:08,921 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 203 transitions. Word has length 93 [2020-10-12 10:29:08,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:29:08,921 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 203 transitions. [2020-10-12 10:29:08,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 10:29:08,921 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 203 transitions. [2020-10-12 10:29:08,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-12 10:29:08,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:29:08,923 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:29:08,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 10:29:08,923 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:29:08,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:29:08,923 INFO L82 PathProgramCache]: Analyzing trace with hash -758549997, now seen corresponding path program 1 times [2020-10-12 10:29:08,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:29:08,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [268164431] [2020-10-12 10:29:08,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:29:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:08,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:09,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:09,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:09,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:12,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:12,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 10:29:12,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 10:29:12,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3386 [2020-10-12 10:29:12,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:12,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 10:29:12,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:29:12,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 10:29:12,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:12,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:29:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:12,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:12,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:12,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:12,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:12,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:12,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:12,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:29:12,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:12,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:29:12,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:29:12,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:29:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:12,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:12,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:12,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:12,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:12,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:12,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:12,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:29:12,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:12,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:29:12,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:29:12,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:29:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:12,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:12,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:12,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:12,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:12,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:12,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:12,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:12,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:12,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:12,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:29:12,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:29:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:12,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:12,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:12,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:12,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:12,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:12,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:12,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:12,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:12,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:12,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:29:12,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:29:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:12,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:12,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:12,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:12,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:12,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:12,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:12,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:12,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:12,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:12,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:12,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:29:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:12,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:12,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:12,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:12,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:12,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:12,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:12,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:12,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:12,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:12,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:12,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:29:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:12,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:12,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:12,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:12,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:12,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:12,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:12,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:12,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:12,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:12,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:12,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:29:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:12,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:12,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:12,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:12,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:12,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:12,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:12,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:12,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:12,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:12,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:12,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 10:29:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:12,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:12,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:12,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:12,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:12,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:12,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:12,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:12,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:12,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:12,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:12,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:29:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:12,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:12,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:12,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:12,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:12,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:29:12,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:12,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:12,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:12,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:12,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:29:12,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:29:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:12,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:12,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:12,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:12,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:12,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:29:12,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:12,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:12,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:12,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:12,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:29:12,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:29:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:12,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:12,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:12,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:12,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:12,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:29:12,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:12,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:12,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:12,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:12,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:12,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 10:29:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:12,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:12,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:12,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:12,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:12,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:12,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:12,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 10:29:12,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:12,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:29:12,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:12,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 10:29:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:12,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:12,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:12,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:12,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:12,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:12,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:12,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:12,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:12,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:12,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:29:12,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 10:29:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:12,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:12,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:12,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:12,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:12,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:12,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:12,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:12,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:12,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:12,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:29:13,015 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 5 proven. 44 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-10-12 10:29:13,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [268164431] [2020-10-12 10:29:13,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:29:13,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 10:29:13,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684372939] [2020-10-12 10:29:13,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 10:29:13,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:29:13,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 10:29:13,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2020-10-12 10:29:13,018 INFO L87 Difference]: Start difference. First operand 155 states and 203 transitions. Second operand 20 states. [2020-10-12 10:29:19,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:29:19,950 INFO L93 Difference]: Finished difference Result 676 states and 1002 transitions. [2020-10-12 10:29:19,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2020-10-12 10:29:19,951 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 109 [2020-10-12 10:29:19,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:29:19,956 INFO L225 Difference]: With dead ends: 676 [2020-10-12 10:29:19,956 INFO L226 Difference]: Without dead ends: 674 [2020-10-12 10:29:19,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3096 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1242, Invalid=7878, Unknown=0, NotChecked=0, Total=9120 [2020-10-12 10:29:19,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2020-10-12 10:29:20,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 212. [2020-10-12 10:29:20,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-10-12 10:29:20,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 289 transitions. [2020-10-12 10:29:20,003 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 289 transitions. Word has length 109 [2020-10-12 10:29:20,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:29:20,004 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 289 transitions. [2020-10-12 10:29:20,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 10:29:20,004 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 289 transitions. [2020-10-12 10:29:20,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-12 10:29:20,005 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:29:20,005 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:29:20,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 10:29:20,006 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:29:20,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:29:20,006 INFO L82 PathProgramCache]: Analyzing trace with hash -2019467247, now seen corresponding path program 1 times [2020-10-12 10:29:20,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:29:20,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1789294335] [2020-10-12 10:29:20,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:29:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:20,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:20,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:20,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:21,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:21,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 10:29:21,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:29:21,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1044 [2020-10-12 10:29:21,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:21,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 10:29:21,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:29:21,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 10:29:21,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:21,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:29:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:21,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:21,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:21,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:21,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:21,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:21,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:21,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:29:21,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:21,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:29:21,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:21,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:29:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:21,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:21,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:21,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:21,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:21,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:21,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:21,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:29:21,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:21,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:29:21,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:21,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:29:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:21,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:21,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:21,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:21,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:21,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:21,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:21,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:21,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:21,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:21,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:29:21,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:29:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:21,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:21,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:21,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:21,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:21,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:21,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:21,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:21,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:21,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:21,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:21,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:29:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:21,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:21,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:21,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:21,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:21,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:21,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:21,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:21,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:21,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:21,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:21,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:29:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:21,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:21,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:21,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:21,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:21,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:21,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:21,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:21,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:21,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:21,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:21,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:29:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:21,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:21,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:21,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:21,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:21,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:21,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:21,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:21,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:21,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:21,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:21,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:29:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:21,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:21,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:21,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:21,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:21,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:21,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:21,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:21,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:21,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:21,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:21,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 10:29:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:21,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:21,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:21,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:21,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:21,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:21,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:21,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:21,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:21,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:21,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:21,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:29:21,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:21,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:21,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:21,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:21,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:21,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:21,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:21,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:21,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:29:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:21,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:21,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:21,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:21,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:21,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:21,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:21,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:21,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:21,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:21,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:21,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:29:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:21,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:21,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:21,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:21,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:21,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:21,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:21,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:21,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:21,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:21,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:21,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 10:29:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:21,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:21,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:21,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:21,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:21,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:21,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:21,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:21,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:21,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:21,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:21,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 10:29:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:21,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:21,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:21,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:21,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:21,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:21,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:21,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:21,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:21,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:21,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:21,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 10:29:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:21,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:21,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:21,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:21,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:21,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:29:21,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 10:29:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:21,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:29:21,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:21,618 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 11 proven. 38 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-10-12 10:29:21,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1789294335] [2020-10-12 10:29:21,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:29:21,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 10:29:21,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536182068] [2020-10-12 10:29:21,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 10:29:21,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:29:21,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 10:29:21,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2020-10-12 10:29:21,620 INFO L87 Difference]: Start difference. First operand 212 states and 289 transitions. Second operand 20 states. [2020-10-12 10:29:27,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:29:27,125 INFO L93 Difference]: Finished difference Result 832 states and 1238 transitions. [2020-10-12 10:29:27,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-10-12 10:29:27,126 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 109 [2020-10-12 10:29:27,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:29:27,130 INFO L225 Difference]: With dead ends: 832 [2020-10-12 10:29:27,130 INFO L226 Difference]: Without dead ends: 830 [2020-10-12 10:29:27,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1927 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=818, Invalid=5188, Unknown=0, NotChecked=0, Total=6006 [2020-10-12 10:29:27,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2020-10-12 10:29:27,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 244. [2020-10-12 10:29:27,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-10-12 10:29:27,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 342 transitions. [2020-10-12 10:29:27,188 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 342 transitions. Word has length 109 [2020-10-12 10:29:27,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:29:27,188 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 342 transitions. [2020-10-12 10:29:27,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 10:29:27,188 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 342 transitions. [2020-10-12 10:29:27,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-12 10:29:27,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:29:27,190 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:29:27,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 10:29:27,190 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:29:27,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:29:27,190 INFO L82 PathProgramCache]: Analyzing trace with hash 119466515, now seen corresponding path program 2 times [2020-10-12 10:29:27,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:29:27,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125700670] [2020-10-12 10:29:27,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:29:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:27,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:27,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:27,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:28,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:28,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 10:29:28,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:29:28,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 984 [2020-10-12 10:29:28,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:28,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-12 10:29:28,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:29:28,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 10:29:28,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:28,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:29:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:28,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:28,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:28,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:28,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:28,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:28,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:28,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:29:28,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:28,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:29:28,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:28,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:29:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:28,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:28,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:28,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:28,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:28,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:29:28,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:28,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:29:28,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:28,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:29:28,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:28,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:29:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:28,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:28,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:28,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:28,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:28,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:28,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:28,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:28,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:28,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:28,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:28,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:29:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:28,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:28,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:28,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:28,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:28,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:28,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:28,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:28,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:28,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:28,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:28,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:29:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:28,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:28,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:28,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:28,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:28,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:28,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:28,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:28,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:28,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:28,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:28,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:29:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:28,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:28,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:28,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:28,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:28,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:28,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:28,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:28,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:28,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:28,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:28,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:29:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:28,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:28,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:28,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:28,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:28,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:28,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:28,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:28,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:28,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:28,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:28,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:29:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:28,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:28,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:28,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:28,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:28,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:28,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:28,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:28,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:28,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:28,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:28,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 10:29:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:28,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:28,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:28,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:28,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:28,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:28,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:28,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:28,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:28,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:28,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:28,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:29:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:28,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:28,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:28,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:28,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:28,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:28,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:28,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:28,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:28,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:28,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:28,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:29:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:28,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:28,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:28,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:28,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:28,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:28,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:28,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:28,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:28,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:28,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:28,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:29:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:28,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:28,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:28,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:28,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:28,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:28,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:28,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:28,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:28,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:28,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:28,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 10:29:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:28,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:28,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:28,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:28,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:28,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:28,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:28,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 10:29:28,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:28,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:29:28,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:28,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 10:29:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:28,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:28,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:28,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:28,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:28,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:28,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:28,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:28,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:28,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:28,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:28,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 10:29:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:28,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:28,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:28,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:28,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:28,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:28,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:28,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:28,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:28,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:28,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:28,684 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 5 proven. 44 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-10-12 10:29:28,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125700670] [2020-10-12 10:29:28,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:29:28,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 10:29:28,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067706679] [2020-10-12 10:29:28,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 10:29:28,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:29:28,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 10:29:28,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2020-10-12 10:29:28,686 INFO L87 Difference]: Start difference. First operand 244 states and 342 transitions. Second operand 20 states. [2020-10-12 10:29:35,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:29:35,359 INFO L93 Difference]: Finished difference Result 867 states and 1297 transitions. [2020-10-12 10:29:35,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2020-10-12 10:29:35,360 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 109 [2020-10-12 10:29:35,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:29:35,364 INFO L225 Difference]: With dead ends: 867 [2020-10-12 10:29:35,365 INFO L226 Difference]: Without dead ends: 865 [2020-10-12 10:29:35,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 32 SyntacticMatches, 4 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2942 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1093, Invalid=7463, Unknown=0, NotChecked=0, Total=8556 [2020-10-12 10:29:35,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2020-10-12 10:29:35,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 258. [2020-10-12 10:29:35,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-10-12 10:29:35,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 365 transitions. [2020-10-12 10:29:35,438 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 365 transitions. Word has length 109 [2020-10-12 10:29:35,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:29:35,439 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 365 transitions. [2020-10-12 10:29:35,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 10:29:35,439 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 365 transitions. [2020-10-12 10:29:35,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-12 10:29:35,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:29:35,441 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:29:35,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 10:29:35,441 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:29:35,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:29:35,442 INFO L82 PathProgramCache]: Analyzing trace with hash 890200081, now seen corresponding path program 2 times [2020-10-12 10:29:35,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:29:35,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1563576884] [2020-10-12 10:29:35,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:29:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:35,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:35,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:36,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:36,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 10:29:36,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:29:36,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 884 [2020-10-12 10:29:36,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:36,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-12 10:29:36,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:29:36,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 10:29:36,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:36,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:29:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:36,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:36,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:36,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:36,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:36,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:36,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:36,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:29:36,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:36,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:29:36,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:36,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:29:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:36,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:36,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:36,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:36,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:36,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:36,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:36,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:29:36,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:36,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:29:36,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:36,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:29:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:36,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:36,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:36,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:36,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:36,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:36,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:36,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:36,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:36,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:36,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:36,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:29:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:36,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:36,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:36,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:36,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:36,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:36,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:36,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:36,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:36,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:36,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:36,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:29:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:36,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:36,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:36,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:36,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:36,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:36,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:36,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:36,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:36,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:36,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:36,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:29:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:36,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:36,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:36,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:36,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:36,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:36,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:36,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:36,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:36,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:36,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:36,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:29:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:36,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:36,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:36,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:36,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:36,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:36,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:36,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:36,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:36,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:36,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:36,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:29:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:36,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:36,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:36,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:36,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:36,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:36,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:36,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:36,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:36,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:36,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:36,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 10:29:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:36,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:36,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:36,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:36,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:36,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:36,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:36,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:36,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:36,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:36,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:36,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:29:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:36,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:36,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:36,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:36,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:36,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:36,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:36,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:36,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:36,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:36,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:36,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:29:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:36,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:36,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:36,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:36,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:36,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:36,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:36,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:36,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:36,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:36,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:36,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:29:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:36,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:36,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:36,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:36,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:36,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:36,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:36,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:36,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 10:29:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:36,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:36,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:36,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:36,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:36,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:36,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:36,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:36,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:36,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:36,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:36,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 10:29:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:36,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:36,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:36,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:36,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:36,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:36,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:36,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:36,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 10:29:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:36,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:36,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:36,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:36,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:36,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:29:36,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:36,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 10:29:36,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:36,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:29:36,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 11 proven. 38 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-10-12 10:29:36,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1563576884] [2020-10-12 10:29:36,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:29:36,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 10:29:36,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115696007] [2020-10-12 10:29:36,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 10:29:36,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:29:36,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 10:29:36,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2020-10-12 10:29:36,824 INFO L87 Difference]: Start difference. First operand 258 states and 365 transitions. Second operand 20 states. [2020-10-12 10:29:41,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:29:41,013 INFO L93 Difference]: Finished difference Result 780 states and 1176 transitions. [2020-10-12 10:29:41,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-12 10:29:41,015 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 109 [2020-10-12 10:29:41,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:29:41,019 INFO L225 Difference]: With dead ends: 780 [2020-10-12 10:29:41,019 INFO L226 Difference]: Without dead ends: 778 [2020-10-12 10:29:41,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1024 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=511, Invalid=3149, Unknown=0, NotChecked=0, Total=3660 [2020-10-12 10:29:41,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2020-10-12 10:29:41,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 269. [2020-10-12 10:29:41,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-10-12 10:29:41,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 382 transitions. [2020-10-12 10:29:41,094 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 382 transitions. Word has length 109 [2020-10-12 10:29:41,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:29:41,095 INFO L479 AbstractCegarLoop]: Abstraction has 269 states and 382 transitions. [2020-10-12 10:29:41,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 10:29:41,095 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 382 transitions. [2020-10-12 10:29:41,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-12 10:29:41,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:29:41,098 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:29:41,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 10:29:41,099 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:29:41,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:29:41,099 INFO L82 PathProgramCache]: Analyzing trace with hash 863134479, now seen corresponding path program 1 times [2020-10-12 10:29:41,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:29:41,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255096158] [2020-10-12 10:29:41,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:29:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:41,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:41,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:41,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 10:29:41,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:41,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391 [2020-10-12 10:29:41,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:41,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 10:29:41,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 10:29:41,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 10:29:41,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:41,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:29:41,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:41,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:41,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:41,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:41,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:41,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:41,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:41,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:29:41,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:41,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:29:41,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:41,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:29:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:41,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:41,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:41,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:41,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:41,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:41,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:41,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:41,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:41,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:41,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:41,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:29:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:41,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:41,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:41,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:41,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:41,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:41,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:41,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:41,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:41,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:41,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:41,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:29:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:41,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:41,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:41,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:41,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:41,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:41,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:41,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:41,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:29:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:41,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:41,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:41,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:41,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:41,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:41,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:41,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:41,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:41,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:41,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:41,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:29:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:41,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:41,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:41,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:41,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:41,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:41,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:41,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:41,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:41,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:41,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:41,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:29:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:41,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:41,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:41,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:41,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:41,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:41,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:41,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:41,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:41,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:41,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:41,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:29:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:41,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:41,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:41,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:41,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:41,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:41,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:41,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:41,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:41,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:41,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:41,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 10:29:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:41,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:41,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:41,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:41,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:41,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:41,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:41,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:41,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:41,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:41,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:41,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:29:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:41,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:41,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:41,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:41,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:41,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:41,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:41,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:41,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:41,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:41,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:41,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:29:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:41,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:41,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:41,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:41,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:41,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:41,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:41,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:41,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:41,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:41,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:41,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:29:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:41,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:41,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:41,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:41,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:41,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:41,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:41,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:41,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:41,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:41,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:41,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 10:29:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:41,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:41,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:41,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:41,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:41,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:41,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:41,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:41,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:41,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:41,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:41,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 10:29:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:41,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:41,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:41,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:41,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:41,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:41,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:41,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:41,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:41,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:41,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:41,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 10:29:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:41,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:41,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:41,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:41,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:41,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:41,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:41,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:41,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:41,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:41,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:41,807 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 6 proven. 35 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-12 10:29:41,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255096158] [2020-10-12 10:29:41,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:29:41,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-12 10:29:41,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609193683] [2020-10-12 10:29:41,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 10:29:41,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:29:41,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 10:29:41,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-12 10:29:41,809 INFO L87 Difference]: Start difference. First operand 269 states and 382 transitions. Second operand 15 states. [2020-10-12 10:29:43,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:29:43,168 INFO L93 Difference]: Finished difference Result 560 states and 850 transitions. [2020-10-12 10:29:43,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 10:29:43,168 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2020-10-12 10:29:43,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:29:43,172 INFO L225 Difference]: With dead ends: 560 [2020-10-12 10:29:43,172 INFO L226 Difference]: Without dead ends: 558 [2020-10-12 10:29:43,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=704, Unknown=0, NotChecked=0, Total=870 [2020-10-12 10:29:43,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2020-10-12 10:29:43,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 101. [2020-10-12 10:29:43,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-12 10:29:43,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 121 transitions. [2020-10-12 10:29:43,205 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 121 transitions. Word has length 109 [2020-10-12 10:29:43,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:29:43,205 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 121 transitions. [2020-10-12 10:29:43,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 10:29:43,206 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 121 transitions. [2020-10-12 10:29:43,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-12 10:29:43,206 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:29:43,207 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:29:43,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-12 10:29:43,207 INFO L427 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:29:43,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:29:43,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1649194571, now seen corresponding path program 6 times [2020-10-12 10:29:43,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:29:43,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168359335] [2020-10-12 10:29:43,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:29:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:43,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:43,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:43,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:43,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:48,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:48,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-12 10:29:48,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 10:29:48,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-12 10:29:48,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:48,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 10:29:48,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:29:48,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-12 10:29:48,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-12 10:29:48,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:29:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:48,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:48,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:48,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:48,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:48,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 10:29:48,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:48,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:29:48,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:48,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:29:48,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:48,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:29:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:48,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:48,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:48,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:48,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:48,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:48,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:48,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:29:48,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:48,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:29:48,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:48,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:29:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:48,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:48,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:48,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:48,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:48,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:48,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:48,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:48,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:29:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:48,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:48,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:48,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:48,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:48,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:48,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:48,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:48,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:48,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:48,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:48,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:29:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:48,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:48,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:48,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:48,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:48,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:48,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:48,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:48,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:48,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:48,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:48,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:29:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:48,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:48,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:48,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:48,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:48,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:48,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:48,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:48,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:48,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:48,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:48,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:29:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:48,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:48,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:48,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:48,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:48,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:48,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:48,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:48,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:48,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:48,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:48,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:29:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:48,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:48,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:48,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:48,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:48,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:48,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:48,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:48,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:48,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:48,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:48,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 10:29:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:48,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:48,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:48,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:48,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:48,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:48,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:48,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:48,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:48,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:48,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:48,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:29:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:48,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:48,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:48,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:48,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:48,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:48,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:48,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:48,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:48,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:48,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:48,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:29:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:48,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:48,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:48,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:48,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:48,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:48,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:48,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:48,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:48,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:48,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:48,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:29:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:48,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:48,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:48,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:29:48,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:48,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:48,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:48,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:48,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:48,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:29:48,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:48,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 10:29:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:48,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:48,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:48,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:48,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:48,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:48,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:48,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 10:29:48,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:48,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:29:48,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:48,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 10:29:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:48,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:48,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:48,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:48,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:48,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:29:48,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:48,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:48,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:48,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 10:29:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:48,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:48,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:48,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:48,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:48,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:48,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:48,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:48,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:48,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:48,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:48,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 10:29:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:48,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:48,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:48,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:48,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:48,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:48,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:48,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:48,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:48,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:48,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:48,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 10:29:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:29:48,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:29:48,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:29:48,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:29:48,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:29:48,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:29:48,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:29:48,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:29:48,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:29:48,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:29:48,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:29:48,846 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 9 proven. 82 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-10-12 10:29:48,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1168359335] [2020-10-12 10:29:48,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:29:48,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 10:29:48,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330501428] [2020-10-12 10:29:48,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 10:29:48,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:29:48,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 10:29:48,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2020-10-12 10:29:48,848 INFO L87 Difference]: Start difference. First operand 101 states and 121 transitions. Second operand 20 states. [2020-10-12 10:30:05,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:30:05,545 INFO L93 Difference]: Finished difference Result 1471 states and 2283 transitions. [2020-10-12 10:30:05,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2020-10-12 10:30:05,546 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 125 [2020-10-12 10:30:05,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:30:05,554 INFO L225 Difference]: With dead ends: 1471 [2020-10-12 10:30:05,554 INFO L226 Difference]: Without dead ends: 1469 [2020-10-12 10:30:05,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 38 SyntacticMatches, 5 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12215 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=2350, Invalid=28450, Unknown=0, NotChecked=0, Total=30800 [2020-10-12 10:30:05,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2020-10-12 10:30:05,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 157. [2020-10-12 10:30:05,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-12 10:30:05,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 202 transitions. [2020-10-12 10:30:05,637 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 202 transitions. Word has length 125 [2020-10-12 10:30:05,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:30:05,638 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 202 transitions. [2020-10-12 10:30:05,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 10:30:05,638 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 202 transitions. [2020-10-12 10:30:05,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-12 10:30:05,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:30:05,640 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:30:05,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-12 10:30:05,642 INFO L427 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:30:05,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:30:05,642 INFO L82 PathProgramCache]: Analyzing trace with hash -734730167, now seen corresponding path program 1 times [2020-10-12 10:30:05,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:30:05,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378460802] [2020-10-12 10:30:05,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:30:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:05,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:06,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:06,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-12 10:30:06,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:06,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 421 [2020-10-12 10:30:06,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:06,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 10:30:06,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:30:06,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-12 10:30:06,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:06,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:30:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:06,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:06,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:06,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:06,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:06,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:06,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:06,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:30:06,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:06,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:30:06,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:06,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:30:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:06,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:06,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:06,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:06,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:06,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:06,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:06,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:30:06,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:06,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:30:06,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:06,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:30:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:06,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:06,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:06,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:06,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:06,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:06,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:06,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:06,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:06,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:06,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:06,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:30:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:06,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:06,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:06,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:06,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:06,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:06,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:06,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:06,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:06,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:06,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:06,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:30:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:06,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:06,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:06,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:06,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:06,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:30:06,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:06,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:06,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:06,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:06,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:06,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:30:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:06,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:06,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:06,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:06,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:06,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:30:06,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:06,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:06,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:06,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:06,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:06,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:30:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:06,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:06,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:06,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:06,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:06,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:06,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:06,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:06,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:06,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:06,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:06,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:30:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:06,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:06,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:06,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:06,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:06,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:06,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:06,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:06,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:06,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:06,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:06,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 10:30:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:06,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:06,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:06,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:06,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:06,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:30:06,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:06,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:06,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:06,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:06,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:06,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:30:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:06,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:06,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:06,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:06,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:06,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:30:06,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:06,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:06,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:06,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:30:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:06,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:06,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:06,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:06,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:06,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:30:06,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:06,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:06,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:06,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:06,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:06,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:30:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:06,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:06,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:06,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:06,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:06,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:30:06,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:06,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:06,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:06,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:06,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:06,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 10:30:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:06,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:06,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:06,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:06,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:06,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:30:06,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:06,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:06,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:06,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:06,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:06,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 10:30:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:06,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:06,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:06,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:06,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:06,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:30:06,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:06,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:06,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:06,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:06,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:06,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 10:30:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:06,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:06,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:06,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:06,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:06,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:30:06,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:06,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:06,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:06,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:06,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:06,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 10:30:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:06,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:06,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:06,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:06,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:06,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:06,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:06,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:06,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:06,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:06,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:06,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 10:30:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:06,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:06,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:06,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:06,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:06,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:30:06,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:06,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:06,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:06,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:06,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:06,494 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 10 proven. 69 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2020-10-12 10:30:06,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378460802] [2020-10-12 10:30:06,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:30:06,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-12 10:30:06,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400944853] [2020-10-12 10:30:06,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 10:30:06,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:30:06,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 10:30:06,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-10-12 10:30:06,497 INFO L87 Difference]: Start difference. First operand 157 states and 202 transitions. Second operand 16 states. [2020-10-12 10:30:19,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:30:19,704 INFO L93 Difference]: Finished difference Result 2140 states and 3340 transitions. [2020-10-12 10:30:19,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2020-10-12 10:30:19,705 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 125 [2020-10-12 10:30:19,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:30:19,714 INFO L225 Difference]: With dead ends: 2140 [2020-10-12 10:30:19,714 INFO L226 Difference]: Without dead ends: 2138 [2020-10-12 10:30:19,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8899 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2364, Invalid=19392, Unknown=0, NotChecked=0, Total=21756 [2020-10-12 10:30:19,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2020-10-12 10:30:19,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 201. [2020-10-12 10:30:19,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-10-12 10:30:19,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 262 transitions. [2020-10-12 10:30:19,812 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 262 transitions. Word has length 125 [2020-10-12 10:30:19,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:30:19,812 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 262 transitions. [2020-10-12 10:30:19,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 10:30:19,813 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 262 transitions. [2020-10-12 10:30:19,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-12 10:30:19,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:30:19,814 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:30:19,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-12 10:30:19,815 INFO L427 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:30:19,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:30:19,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1530753097, now seen corresponding path program 2 times [2020-10-12 10:30:19,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:30:19,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [360618101] [2020-10-12 10:30:19,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:30:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:19,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:19,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:20,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:20,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:20,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-12 10:30:20,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:30:20,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1055 [2020-10-12 10:30:20,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:20,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-12 10:30:20,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:30:20,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-12 10:30:20,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:21,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:30:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:21,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:21,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:21,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:21,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:21,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:21,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:21,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:30:21,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:21,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:30:21,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:21,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:30:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:21,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:21,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:21,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:21,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:21,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:30:21,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:21,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:30:21,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:21,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:30:21,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:21,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:30:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:21,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:21,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:21,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:21,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:21,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:21,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:21,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:21,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:21,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:21,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:21,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:30:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:21,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:21,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:21,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:21,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:21,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:21,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:21,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:21,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:21,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:21,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:21,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:30:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:21,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:21,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:21,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:21,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:21,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:21,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:21,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:21,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:21,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:21,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:21,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:30:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:21,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:21,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:21,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:21,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:21,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:21,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:21,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:21,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:21,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:21,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:21,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:30:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:21,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:21,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:21,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:21,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:21,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:21,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:21,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:21,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:21,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:21,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:21,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:30:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:21,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:21,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:21,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:21,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:21,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:21,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:21,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:21,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:21,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:21,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:21,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 10:30:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:21,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:21,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:21,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:21,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:21,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:21,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:21,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:21,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:21,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:21,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:21,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:30:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:21,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:21,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:21,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:21,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:21,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:30:21,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:21,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:21,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:21,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:21,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:21,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:30:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:21,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:21,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:21,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:21,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:21,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:30:21,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:21,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:21,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:21,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:21,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:21,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:30:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:21,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:21,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:21,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:21,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:21,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:30:21,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:21,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:21,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:21,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 10:30:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:21,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:21,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:21,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:21,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:21,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:21,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:21,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:21,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:21,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:21,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:21,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 10:30:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:21,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:21,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:21,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:21,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:21,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:21,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:21,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:21,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:21,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:21,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:21,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 10:30:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:21,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:21,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:21,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:21,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:21,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:30:21,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:21,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 10:30:21,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:21,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:30:21,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:21,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 10:30:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:21,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:21,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:21,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:21,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:21,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:21,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:21,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:21,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:21,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:21,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:21,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 10:30:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:21,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:21,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:21,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:21,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:21,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:21,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:21,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:21,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:21,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:21,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:21,411 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 15 proven. 76 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-10-12 10:30:21,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [360618101] [2020-10-12 10:30:21,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:30:21,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-12 10:30:21,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032142916] [2020-10-12 10:30:21,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 10:30:21,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:30:21,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 10:30:21,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2020-10-12 10:30:21,412 INFO L87 Difference]: Start difference. First operand 201 states and 262 transitions. Second operand 21 states. [2020-10-12 10:30:28,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:30:28,271 INFO L93 Difference]: Finished difference Result 903 states and 1347 transitions. [2020-10-12 10:30:28,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-10-12 10:30:28,272 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 125 [2020-10-12 10:30:28,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:30:28,277 INFO L225 Difference]: With dead ends: 903 [2020-10-12 10:30:28,277 INFO L226 Difference]: Without dead ends: 901 [2020-10-12 10:30:28,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1312 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=423, Invalid=4689, Unknown=0, NotChecked=0, Total=5112 [2020-10-12 10:30:28,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2020-10-12 10:30:28,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 226. [2020-10-12 10:30:28,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-12 10:30:28,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 302 transitions. [2020-10-12 10:30:28,396 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 302 transitions. Word has length 125 [2020-10-12 10:30:28,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:30:28,397 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 302 transitions. [2020-10-12 10:30:28,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 10:30:28,397 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 302 transitions. [2020-10-12 10:30:28,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-12 10:30:28,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:30:28,399 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:30:28,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-12 10:30:28,399 INFO L427 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:30:28,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:30:28,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1880705209, now seen corresponding path program 1 times [2020-10-12 10:30:28,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:30:28,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1423401784] [2020-10-12 10:30:28,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:30:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:28,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:28,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:29,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:29,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-12 10:30:29,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:30:29,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 837 [2020-10-12 10:30:29,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:29,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 10:30:29,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:30:29,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-12 10:30:29,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:29,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:30:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:29,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:29,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:29,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:29,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:29,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:29,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:29,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:30:29,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:29,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:30:29,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:29,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:30:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:29,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:29,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:29,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:29,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:29,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:30:29,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:30:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:30:29,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:29,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:30:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:29,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:29,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:29,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:29,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:29,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:29,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:29,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:29,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:29,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:29,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:29,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:30:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:29,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:29,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:29,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:29,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:29,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:29,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:29,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:29,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:29,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:29,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:29,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:30:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:29,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:29,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:29,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:29,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:29,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:29,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:29,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:29,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:29,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:29,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:29,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:30:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:29,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:29,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:29,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:29,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:29,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:29,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:29,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:29,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:29,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:29,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:29,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:30:29,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:29,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:29,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:29,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:29,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:29,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:29,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:29,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:29,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:29,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:29,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:29,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:30:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:29,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:29,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:29,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:29,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:29,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:29,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:29,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:29,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:29,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:29,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:29,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 10:30:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:29,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:29,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:29,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:29,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:29,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:29,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:29,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:29,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:29,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:29,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:29,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:30:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:29,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:29,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:29,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:29,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:29,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:29,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:29,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:29,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:29,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:29,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:29,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:30:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:29,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:29,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:29,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:29,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:29,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:29,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:29,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:29,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:29,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:29,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:29,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:30:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:29,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:29,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:29,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:29,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:29,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:29,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:29,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:29,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:29,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:29,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:29,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 10:30:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:29,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:29,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:29,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:29,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:29,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:29,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:29,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:29,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:29,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:29,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:29,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 10:30:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:29,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:29,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:29,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:29,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:29,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:29,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:29,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:29,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:29,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:29,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:29,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 10:30:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:29,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:29,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:29,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:29,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:29,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:29,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:29,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:29,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:29,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:29,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:29,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 10:30:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:29,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:29,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:29,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:29,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:29,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:29,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:29,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:29,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:29,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:29,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:29,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 10:30:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:29,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:29,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:29,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:29,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:29,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:30:29,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:29,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 10:30:29,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:29,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:30:29,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:29,829 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 21 proven. 70 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-10-12 10:30:29,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1423401784] [2020-10-12 10:30:29,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:30:29,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-12 10:30:29,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334869003] [2020-10-12 10:30:29,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 10:30:29,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:30:29,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 10:30:29,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2020-10-12 10:30:29,831 INFO L87 Difference]: Start difference. First operand 226 states and 302 transitions. Second operand 21 states. [2020-10-12 10:30:34,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:30:34,059 INFO L93 Difference]: Finished difference Result 543 states and 771 transitions. [2020-10-12 10:30:34,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-12 10:30:34,059 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 125 [2020-10-12 10:30:34,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:30:34,063 INFO L225 Difference]: With dead ends: 543 [2020-10-12 10:30:34,063 INFO L226 Difference]: Without dead ends: 541 [2020-10-12 10:30:34,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=294, Invalid=2676, Unknown=0, NotChecked=0, Total=2970 [2020-10-12 10:30:34,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2020-10-12 10:30:34,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 226. [2020-10-12 10:30:34,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-12 10:30:34,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 302 transitions. [2020-10-12 10:30:34,146 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 302 transitions. Word has length 125 [2020-10-12 10:30:34,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:30:34,146 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 302 transitions. [2020-10-12 10:30:34,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 10:30:34,146 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 302 transitions. [2020-10-12 10:30:34,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-12 10:30:34,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:30:34,148 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:30:34,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-12 10:30:34,148 INFO L427 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:30:34,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:30:34,148 INFO L82 PathProgramCache]: Analyzing trace with hash -822867131, now seen corresponding path program 1 times [2020-10-12 10:30:34,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:30:34,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024114629] [2020-10-12 10:30:34,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:30:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:34,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:34,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:34,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-12 10:30:34,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:34,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-10-12 10:30:34,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:34,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 10:30:34,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 10:30:34,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-12 10:30:34,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:34,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:30:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:34,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:34,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:34,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:34,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:34,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:34,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:34,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:30:34,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:34,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:30:34,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:34,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:30:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:34,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:34,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:34,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:34,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:34,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:34,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:34,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:34,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:34,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:34,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:34,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:30:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:34,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:34,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:34,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:34,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:34,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:34,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:34,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:34,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:34,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:34,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:34,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:30:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:34,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:34,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:34,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:34,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:34,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:34,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:34,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:34,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:34,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:34,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:34,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:30:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:34,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:34,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:34,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:34,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:34,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:34,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:34,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:34,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:34,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:34,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:34,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:30:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:34,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:34,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:34,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:34,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:34,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:34,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:34,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:34,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:34,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:34,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:34,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:30:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:34,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:34,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:34,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:34,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:34,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:34,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:34,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:34,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:34,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:34,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:34,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:30:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:34,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:34,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:34,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:34,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:34,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:30:34,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:34,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:34,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:34,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:34,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:34,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 10:30:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:34,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:34,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:34,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:34,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:34,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:34,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:34,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:34,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:30:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:34,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:34,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:34,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:34,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:34,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:34,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:34,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:34,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:34,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:34,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:34,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:30:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:34,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:34,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:34,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:34,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:34,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:34,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:34,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:34,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:34,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:34,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:34,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:30:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:34,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:34,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:34,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:34,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:34,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:30:34,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:34,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:34,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:34,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:34,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:34,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 10:30:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:34,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:34,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:34,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:34,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:34,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:34,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:34,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:34,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:34,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:34,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:34,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 10:30:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:34,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:34,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:34,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:34,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:34,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:34,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:34,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:34,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:34,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:34,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 10:30:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:34,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:34,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:34,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:34,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:34,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:34,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:34,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:34,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:34,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:34,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:34,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 10:30:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:34,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:34,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:34,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:34,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:34,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:34,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:34,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:34,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 10:30:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:34,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:34,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:34,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:34,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:34,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:34,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:34,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:34,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:34,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:34,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:34,857 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 10 proven. 69 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2020-10-12 10:30:34,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024114629] [2020-10-12 10:30:34,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:30:34,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-12 10:30:34,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049054066] [2020-10-12 10:30:34,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 10:30:34,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:30:34,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 10:30:34,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2020-10-12 10:30:34,859 INFO L87 Difference]: Start difference. First operand 226 states and 302 transitions. Second operand 17 states. [2020-10-12 10:30:37,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:30:37,560 INFO L93 Difference]: Finished difference Result 447 states and 651 transitions. [2020-10-12 10:30:37,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 10:30:37,561 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 125 [2020-10-12 10:30:37,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:30:37,565 INFO L225 Difference]: With dead ends: 447 [2020-10-12 10:30:37,565 INFO L226 Difference]: Without dead ends: 445 [2020-10-12 10:30:37,566 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=254, Invalid=1228, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 10:30:37,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-10-12 10:30:37,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 109. [2020-10-12 10:30:37,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-12 10:30:37,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 129 transitions. [2020-10-12 10:30:37,607 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 129 transitions. Word has length 125 [2020-10-12 10:30:37,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:30:37,607 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 129 transitions. [2020-10-12 10:30:37,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 10:30:37,607 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 129 transitions. [2020-10-12 10:30:37,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-12 10:30:37,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:30:37,609 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 7, 7, 7, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:30:37,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-12 10:30:37,609 INFO L427 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:30:37,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:30:37,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1313108952, now seen corresponding path program 7 times [2020-10-12 10:30:37,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:30:37,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1459886163] [2020-10-12 10:30:37,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:30:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:37,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:37,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:37,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-12 10:30:37,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:37,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-12 10:30:37,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:37,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 10:30:37,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:30:37,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-12 10:30:37,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:30:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:38,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:38,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:38,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:38,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:38,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:38,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:38,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:30:38,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:38,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:30:38,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:30:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:38,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:38,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:38,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:38,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:38,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:38,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:38,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:30:38,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:38,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:30:38,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:30:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:38,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:38,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:38,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:38,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:38,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:38,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:38,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:38,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:38,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:38,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:30:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:38,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:38,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:38,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:38,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:38,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:38,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:38,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:30:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:38,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:38,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:38,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:38,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:38,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:38,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:38,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:38,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:38,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:38,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:30:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:38,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:38,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:38,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:38,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:38,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:38,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:38,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:38,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:38,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:38,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:30:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:38,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:38,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:38,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:38,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:38,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:38,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:38,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:38,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:38,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:38,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:30:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:38,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:38,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:38,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:38,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:38,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:38,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:38,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:38,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:38,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:38,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 10:30:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:38,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:38,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:38,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:38,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:38,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:30:38,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:38,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:38,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:38,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:38,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:30:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:38,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:38,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:38,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:38,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:38,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:38,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:38,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:38,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:38,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:38,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:30:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:38,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:38,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:38,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:38,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:38,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:38,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:38,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:38,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:38,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:38,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:30:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:38,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:38,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:38,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:30:38,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:38,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:38,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:38,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:38,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:38,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:30:38,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 10:30:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:38,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:38,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:38,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:38,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:38,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:38,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:38,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:38,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:38,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:38,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 10:30:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:38,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:38,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:38,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:38,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:38,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:38,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:38,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:38,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:38,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:38,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 10:30:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:38,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:38,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:38,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:38,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:38,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:38,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:38,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:38,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:38,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:38,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 10:30:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:38,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:38,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:38,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:38,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:38,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:38,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:38,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 10:30:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:38,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:38,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:38,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:38,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:38,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:38,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:38,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:38,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:38,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:38,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 10:30:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:30:38,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:30:38,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:30:38,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:30:38,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:30:38,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:30:38,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:30:38,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:30:38,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:30:38,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:30:38,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:30:38,307 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 12 proven. 91 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-12 10:30:38,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1459886163] [2020-10-12 10:30:38,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:30:38,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-12 10:30:38,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381467773] [2020-10-12 10:30:38,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 10:30:38,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:30:38,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 10:30:38,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2020-10-12 10:30:38,309 INFO L87 Difference]: Start difference. First operand 109 states and 129 transitions. Second operand 17 states. [2020-10-12 10:31:08,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:31:08,272 INFO L93 Difference]: Finished difference Result 2934 states and 4616 transitions. [2020-10-12 10:31:08,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2020-10-12 10:31:08,273 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 133 [2020-10-12 10:31:08,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:31:08,287 INFO L225 Difference]: With dead ends: 2934 [2020-10-12 10:31:08,287 INFO L226 Difference]: Without dead ends: 2932 [2020-10-12 10:31:08,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 263 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31641 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=6514, Invalid=63446, Unknown=0, NotChecked=0, Total=69960 [2020-10-12 10:31:08,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2020-10-12 10:31:08,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 157. [2020-10-12 10:31:08,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-12 10:31:08,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 194 transitions. [2020-10-12 10:31:08,396 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 194 transitions. Word has length 133 [2020-10-12 10:31:08,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:31:08,397 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 194 transitions. [2020-10-12 10:31:08,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 10:31:08,397 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 194 transitions. [2020-10-12 10:31:08,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-12 10:31:08,398 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:31:08,398 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 7, 7, 7, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:31:08,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-12 10:31:08,398 INFO L427 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:31:08,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:31:08,399 INFO L82 PathProgramCache]: Analyzing trace with hash 420995498, now seen corresponding path program 1 times [2020-10-12 10:31:08,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:31:08,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055639150] [2020-10-12 10:31:08,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:31:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:08,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:08,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:08,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:09,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:09,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:13,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:13,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-12 10:31:13,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 10:31:13,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 10:31:13,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:13,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-12 10:31:13,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:31:13,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-12 10:31:13,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:13,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:31:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:13,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:13,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:13,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:13,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:13,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:13,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:13,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:31:13,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:13,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:31:13,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:13,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:31:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:13,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:13,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:13,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:31:13,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:13,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:31:13,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:13,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:31:13,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:13,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:31:13,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:13,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:31:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:13,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:13,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:13,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:13,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:13,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:13,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:13,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:13,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:13,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:13,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:13,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:31:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:13,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:13,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:13,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:13,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:13,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:13,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:13,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:13,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:13,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:13,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:13,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:31:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:13,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:13,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:13,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:13,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:13,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:13,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:13,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:13,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:13,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:13,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:13,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:31:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:13,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:13,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:13,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:13,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:13,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:13,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:13,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:13,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:13,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:13,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:13,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:31:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:13,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:13,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:13,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:13,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:13,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:13,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:13,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:13,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:13,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:13,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:13,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:31:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:13,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:13,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:13,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:13,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:13,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:13,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:13,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:13,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:13,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:13,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:13,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 10:31:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:13,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:13,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:13,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:13,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:13,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:13,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:13,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:13,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:13,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:13,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:13,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:31:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:13,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:13,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:13,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:13,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:13,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:13,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:13,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:13,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:13,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:13,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:13,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:31:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:13,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:13,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:13,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:13,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:13,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:13,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:13,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:13,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:13,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:13,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:13,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:31:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:13,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:13,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:13,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:13,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:13,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:13,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:13,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:13,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:13,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:13,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:13,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 10:31:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:13,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:13,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:13,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:31:13,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:13,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:31:13,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:13,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 10:31:13,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:13,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:31:13,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:13,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 10:31:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:13,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:13,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:13,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:31:13,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:13,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:31:13,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:13,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:13,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:13,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:31:13,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:13,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 10:31:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:13,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:13,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:13,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:31:13,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:13,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:13,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:13,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:13,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:13,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:31:13,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:14,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 10:31:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:14,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:14,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:14,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:31:14,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:14,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:14,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:14,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:14,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:14,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:31:14,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:14,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 10:31:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:14,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:14,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:14,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:31:14,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:14,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:14,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:14,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:14,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:14,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:31:14,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:14,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 10:31:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:14,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:14,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:14,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:31:14,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:14,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:14,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:14,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:14,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:14,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:31:14,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:14,048 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 11 proven. 107 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-12 10:31:14,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055639150] [2020-10-12 10:31:14,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:31:14,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-12 10:31:14,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969065805] [2020-10-12 10:31:14,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 10:31:14,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:31:14,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 10:31:14,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=418, Unknown=0, NotChecked=0, Total=462 [2020-10-12 10:31:14,050 INFO L87 Difference]: Start difference. First operand 157 states and 194 transitions. Second operand 22 states. [2020-10-12 10:31:53,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:31:53,928 INFO L93 Difference]: Finished difference Result 3113 states and 4879 transitions. [2020-10-12 10:31:53,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 291 states. [2020-10-12 10:31:53,929 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 133 [2020-10-12 10:31:53,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:31:53,941 INFO L225 Difference]: With dead ends: 3113 [2020-10-12 10:31:53,941 INFO L226 Difference]: Without dead ends: 3111 [2020-10-12 10:31:53,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 39 SyntacticMatches, 5 SemanticMatches, 297 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38723 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=5959, Invalid=83143, Unknown=0, NotChecked=0, Total=89102 [2020-10-12 10:31:53,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3111 states. [2020-10-12 10:31:54,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3111 to 188. [2020-10-12 10:31:54,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-12 10:31:54,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 244 transitions. [2020-10-12 10:31:54,103 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 244 transitions. Word has length 133 [2020-10-12 10:31:54,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:31:54,104 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 244 transitions. [2020-10-12 10:31:54,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 10:31:54,104 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 244 transitions. [2020-10-12 10:31:54,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-12 10:31:54,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:31:54,105 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 7, 7, 7, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:31:54,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-12 10:31:54,105 INFO L427 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:31:54,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:31:54,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1306149464, now seen corresponding path program 1 times [2020-10-12 10:31:54,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:31:54,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880916573] [2020-10-12 10:31:54,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:31:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:54,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:54,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:54,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:54,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-12 10:31:59,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 10:31:59,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 10:31:59,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-12 10:31:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 10:31:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-12 10:31:59,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:31:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:59,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:59,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:59,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:31:59,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:31:59,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:59,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:31:59,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 10:31:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:59,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:31:59,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:59,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:31:59,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:31:59,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:59,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:31:59,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 10:31:59,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:59,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:59,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:59,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:59,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:59,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:59,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:59,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:31:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:59,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:59,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:59,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:59,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:59,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:59,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:59,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:31:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:59,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:59,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:59,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:59,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:59,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:59,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:59,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 10:31:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:59,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:59,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:59,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:59,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:59,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:59,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:59,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:31:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:59,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:59,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:59,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:59,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:59,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:59,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:59,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:31:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:59,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:59,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:59,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:59,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:59,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 10:31:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:59,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:59,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:59,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:31:59,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:59,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:59,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:59,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:31:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:59,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:59,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:59,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:31:59,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:59,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:59,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 10:31:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:59,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:59,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:59,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:31:59,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:59,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:31:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:59,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:31:59,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:59,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:31:59,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:59,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:59,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 10:31:59,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 10:31:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:59,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:31:59,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:59,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:59,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:59,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:59,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:31:59,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 10:31:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:59,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:31:59,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:59,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:59,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:59,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:59,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:31:59,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 10:31:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:59,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:31:59,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:59,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:31:59,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 10:31:59,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:59,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:31:59,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 10:31:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:59,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:31:59,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:59,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:59,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:59,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:59,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:31:59,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 10:31:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:59,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:31:59,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:59,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:59,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:59,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:59,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:31:59,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 10:31:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:31:59,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:31:59,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:31:59,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:31:59,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:31:59,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:31:59,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:31:59,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:31:59,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:31:59,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:31:59,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:31:59,847 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 17 proven. 101 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-12 10:31:59,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880916573] [2020-10-12 10:31:59,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:31:59,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-12 10:31:59,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775617285] [2020-10-12 10:31:59,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 10:31:59,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:31:59,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 10:31:59,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2020-10-12 10:31:59,849 INFO L87 Difference]: Start difference. First operand 188 states and 244 transitions. Second operand 22 states.