/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:55:38,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:55:38,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:55:38,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:55:38,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:55:38,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:55:38,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:55:38,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:55:38,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:55:38,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:55:38,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:55:38,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:55:38,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:55:38,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:55:38,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:55:38,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:55:38,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:55:38,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:55:38,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:55:38,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:55:38,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:55:38,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:55:38,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:55:38,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:55:38,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:55:38,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:55:38,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:55:38,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:55:38,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:55:38,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:55:38,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:55:38,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:55:38,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:55:38,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:55:38,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:55:38,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:55:38,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:55:38,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:55:38,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:55:38,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:55:38,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:55:38,648 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 [2020-10-14 07:55:38,689 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:55:38,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:55:38,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:55:38,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:55:38,691 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:55:38,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:55:38,691 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:55:38,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:55:38,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:55:38,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:55:38,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:55:38,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:55:38,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:55:38,693 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:55:38,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:55:38,694 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:55:38,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:55:38,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:55:38,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:55:38,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:55:38,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:55:38,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:55:38,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:55:38,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:55:38,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:55:38,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:55:38,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:55:38,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:55:38,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:55:38,697 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:55:38,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:55:38,992 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:55:38,996 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:55:38,998 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:55:38,998 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:55:38,999 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c [2020-10-14 07:55:39,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84b4356bc/1c524a2272c041538b21c75d91ec482d/FLAG70f4ba363 [2020-10-14 07:55:39,511 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:55:39,511 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c [2020-10-14 07:55:39,525 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84b4356bc/1c524a2272c041538b21c75d91ec482d/FLAG70f4ba363 [2020-10-14 07:55:39,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84b4356bc/1c524a2272c041538b21c75d91ec482d [2020-10-14 07:55:39,913 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:55:39,915 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:55:39,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:55:39,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:55:39,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:55:39,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:55:39" (1/1) ... [2020-10-14 07:55:39,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e42023b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:39, skipping insertion in model container [2020-10-14 07:55:39,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:55:39" (1/1) ... [2020-10-14 07:55:39,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:55:39,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:55:40,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:55:40,446 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:55:40,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:55:40,536 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:55:40,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:40 WrapperNode [2020-10-14 07:55:40,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:55:40,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:55:40,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:55:40,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:55:40,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:40" (1/1) ... [2020-10-14 07:55:40,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:40" (1/1) ... [2020-10-14 07:55:40,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:40" (1/1) ... [2020-10-14 07:55:40,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:40" (1/1) ... [2020-10-14 07:55:40,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:40" (1/1) ... [2020-10-14 07:55:40,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:40" (1/1) ... [2020-10-14 07:55:40,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:40" (1/1) ... [2020-10-14 07:55:40,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:55:40,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:55:40,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:55:40,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:55:40,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:40" (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 [2020-10-14 07:55:40,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:55:40,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:55:40,659 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 07:55:40,659 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 07:55:40,659 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 07:55:40,659 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 07:55:40,660 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-14 07:55:40,660 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-14 07:55:40,660 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 07:55:40,660 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 07:55:40,660 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:55:40,660 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 07:55:40,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:55:40,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 07:55:40,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 07:55:40,661 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 07:55:40,661 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 07:55:40,661 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 07:55:40,662 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 07:55:40,662 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 07:55:40,662 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 07:55:40,662 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 07:55:40,662 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 07:55:40,662 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 07:55:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-14 07:55:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 07:55:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 07:55:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:55:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:55:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:55:41,330 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:55:41,331 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 07:55:41,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:55:41 BoogieIcfgContainer [2020-10-14 07:55:41,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:55:41,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:55:41,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:55:41,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:55:41,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:55:39" (1/3) ... [2020-10-14 07:55:41,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688b10d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:55:41, skipping insertion in model container [2020-10-14 07:55:41,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:40" (2/3) ... [2020-10-14 07:55:41,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688b10d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:55:41, skipping insertion in model container [2020-10-14 07:55:41,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:55:41" (3/3) ... [2020-10-14 07:55:41,350 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c [2020-10-14 07:55:41,360 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:55:41,368 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:55:41,381 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:55:41,402 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:55:41,402 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:55:41,402 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:55:41,402 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:55:41,403 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:55:41,403 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:55:41,403 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:55:41,403 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:55:41,424 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states. [2020-10-14 07:55:41,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 07:55:41,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:41,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:55:41,437 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:41,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:41,443 INFO L82 PathProgramCache]: Analyzing trace with hash -202486678, now seen corresponding path program 1 times [2020-10-14 07:55:41,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:41,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336168451] [2020-10-14 07:55:41,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:41,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:42,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:42,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 07:55:42,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:42,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-10-14 07:55:42,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:42,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:42,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:42,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 07:55:42,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:42,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 07:55:42,231 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 07:55:42,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:42,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:42,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:42,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:42,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:42,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 07:55:42,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:42,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:42,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:42,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:42,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:42,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:42,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:42,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:42,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:42,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:55:42,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:42,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:42,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:42,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:42,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:42,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:42,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:42,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:42,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 07:55:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:42,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:42,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:42,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:42,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:42,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:42,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:42,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:42,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:42,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:55:42,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:42,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:42,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 07:55:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:42,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:42,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:42,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:42,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:42,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:55:42,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:42,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:42,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:42,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:42,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:42,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:42,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 07:55:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:42,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:42,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:42,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:42,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:42,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:55:42,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:42,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:42,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:42,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 07:55:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:42,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:42,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:42,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:42,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:42,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:55:42,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:42,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:42,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:42,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:42,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:42,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:42,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 07:55:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:42,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:42,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:42,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:42,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:42,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:42,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:42,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:42,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:42,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:42,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:42,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:42,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 07:55:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:42,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:42,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:42,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:42,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:42,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:55:42,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:42,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:42,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:42,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:42,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:42,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:42,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:55:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:42,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:42,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:42,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:55:42,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:42,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:42,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:42,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:42,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:42,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:55:42,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:42,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:42,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:55:42,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336168451] [2020-10-14 07:55:42,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:55:42,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:55:42,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84697316] [2020-10-14 07:55:42,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:55:42,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:42,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:55:42,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:55:42,547 INFO L87 Difference]: Start difference. First operand 130 states. Second operand 8 states. [2020-10-14 07:55:43,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:43,625 INFO L93 Difference]: Finished difference Result 214 states and 311 transitions. [2020-10-14 07:55:43,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 07:55:43,628 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-14 07:55:43,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:43,641 INFO L225 Difference]: With dead ends: 214 [2020-10-14 07:55:43,641 INFO L226 Difference]: Without dead ends: 125 [2020-10-14 07:55:43,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:55:43,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-14 07:55:43,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-14 07:55:43,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-14 07:55:43,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 186 transitions. [2020-10-14 07:55:43,702 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 186 transitions. Word has length 67 [2020-10-14 07:55:43,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:43,702 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 186 transitions. [2020-10-14 07:55:43,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:55:43,703 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 186 transitions. [2020-10-14 07:55:43,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 07:55:43,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:43,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:55:43,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:55:43,707 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:43,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:43,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1335853352, now seen corresponding path program 1 times [2020-10-14 07:55:43,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:43,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1613088109] [2020-10-14 07:55:43,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:43,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:44,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:44,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 07:55:44,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:44,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 677 [2020-10-14 07:55:44,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:44,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:44,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:55:44,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 07:55:44,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:44,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:44,605 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 07:55:44,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:44,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:44,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:44,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:44,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:44,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:55:44,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:44,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:44,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:44,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:44,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:44,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:44,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:44,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:44,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:44,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:55:44,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:44,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:55:44,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:44,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:44,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:44,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:44,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:44,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:44,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 07:55:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:44,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:44,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:44,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:44,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:44,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:44,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:44,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:44,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:44,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:55:44,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:44,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:44,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 07:55:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:44,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:44,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:44,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:44,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:44,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:55:44,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:44,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:44,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:44,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:44,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:44,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:44,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 07:55:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:44,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:44,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:44,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:44,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:44,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:44,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:44,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:44,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:44,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:44,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:44,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:44,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 07:55:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:44,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:44,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:44,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:44,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:44,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:44,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:44,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:44,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:44,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:44,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:44,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:44,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 07:55:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:44,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:44,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:44,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:44,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:44,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:44,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:44,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:44,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:44,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:44,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:44,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:44,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 07:55:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:44,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:44,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:44,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:44,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:44,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:44,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:44,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:44,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:44,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:44,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:44,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:44,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:55:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:44,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:44,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:44,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:55:44,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:44,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:44,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:44,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:44,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:44,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:55:44,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:44,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:44,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:55:44,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1613088109] [2020-10-14 07:55:44,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:55:44,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-14 07:55:44,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583309174] [2020-10-14 07:55:44,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 07:55:44,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:44,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 07:55:44,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:55:44,912 INFO L87 Difference]: Start difference. First operand 125 states and 186 transitions. Second operand 14 states. [2020-10-14 07:55:45,139 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 07:55:45,364 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 07:55:45,711 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-14 07:55:47,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:47,222 INFO L93 Difference]: Finished difference Result 218 states and 317 transitions. [2020-10-14 07:55:47,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 07:55:47,223 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 67 [2020-10-14 07:55:47,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:47,228 INFO L225 Difference]: With dead ends: 218 [2020-10-14 07:55:47,228 INFO L226 Difference]: Without dead ends: 136 [2020-10-14 07:55:47,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:55:47,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-14 07:55:47,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 125. [2020-10-14 07:55:47,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-14 07:55:47,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 155 transitions. [2020-10-14 07:55:47,254 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 155 transitions. Word has length 67 [2020-10-14 07:55:47,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:47,254 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 155 transitions. [2020-10-14 07:55:47,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 07:55:47,254 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 155 transitions. [2020-10-14 07:55:47,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 07:55:47,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:47,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:55:47,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:55:47,259 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:47,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:47,259 INFO L82 PathProgramCache]: Analyzing trace with hash -14312225, now seen corresponding path program 1 times [2020-10-14 07:55:47,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:47,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148390673] [2020-10-14 07:55:47,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:47,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:47,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:47,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:47,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:49,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:55:52,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:55:52,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 07:55:52,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:52,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 07:55:52,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 07:55:52,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:55:52,580 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 07:55:52,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:52,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:55:52,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:52,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:52,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:55:52,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:55:52,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:52,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:52,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:55:52,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:52,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:55:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:52,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:52,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:52,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:52,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:52,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:52,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 07:55:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:52,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:55:52,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:52,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:52,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:52,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:52,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:55:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:52,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:55:52,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:52,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:52,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:52,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:52,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:55:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:52,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:55:52,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:52,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:52,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:52,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:52,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:55:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:52,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:55:52,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:52,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:52,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 07:55:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:52,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:55:52,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:52,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:52,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:52,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:52,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:55:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:55:52,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:52,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:52,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:55:52,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:52,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:52,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:55:52,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148390673] [2020-10-14 07:55:52,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:55:52,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 07:55:52,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440096564] [2020-10-14 07:55:52,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 07:55:52,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:52,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 07:55:52,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:55:52,888 INFO L87 Difference]: Start difference. First operand 125 states and 155 transitions. Second operand 11 states. [2020-10-14 07:55:53,066 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 07:55:54,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:54,862 INFO L93 Difference]: Finished difference Result 271 states and 359 transitions. [2020-10-14 07:55:54,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 07:55:54,863 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 97 [2020-10-14 07:55:54,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:54,868 INFO L225 Difference]: With dead ends: 271 [2020-10-14 07:55:54,868 INFO L226 Difference]: Without dead ends: 195 [2020-10-14 07:55:54,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:55:54,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-10-14 07:55:54,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 193. [2020-10-14 07:55:54,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-10-14 07:55:54,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 250 transitions. [2020-10-14 07:55:54,895 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 250 transitions. Word has length 97 [2020-10-14 07:55:54,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:54,895 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 250 transitions. [2020-10-14 07:55:54,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 07:55:54,896 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 250 transitions. [2020-10-14 07:55:54,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 07:55:54,898 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:54,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:55:54,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:55:54,899 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:54,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:54,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1665302035, now seen corresponding path program 1 times [2020-10-14 07:55:54,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:54,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092553460] [2020-10-14 07:55:54,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:54,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:56,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:59,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:59,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:55:59,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:55:59,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 07:55:59,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:59,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:59,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:59,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 07:55:59,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 07:55:59,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:00,114 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 07:56:00,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:00,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:56:00,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:00,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:00,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:00,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:00,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:56:00,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:56:00,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:00,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:00,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 07:56:00,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:00,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:56:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:00,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:00,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:00,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:00,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:00,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:00,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 07:56:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:00,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:56:00,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:00,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:00,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:00,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:00,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:56:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:00,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:56:00,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:00,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:00,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:00,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:00,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:56:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:00,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:00,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:00,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:00,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:00,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:00,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:56:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:00,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:56:00,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:00,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:00,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:00,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:00,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 07:56:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:00,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:00,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:00,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:00,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:00,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:00,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:56:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:56:00,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:00,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:56:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:00,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:00,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:56:00,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092553460] [2020-10-14 07:56:00,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:56:00,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 07:56:00,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718648617] [2020-10-14 07:56:00,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 07:56:00,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:00,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 07:56:00,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:56:00,428 INFO L87 Difference]: Start difference. First operand 193 states and 250 transitions. Second operand 11 states. [2020-10-14 07:56:00,592 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 07:56:02,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:56:02,124 INFO L93 Difference]: Finished difference Result 469 states and 636 transitions. [2020-10-14 07:56:02,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 07:56:02,125 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 97 [2020-10-14 07:56:02,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:56:02,130 INFO L225 Difference]: With dead ends: 469 [2020-10-14 07:56:02,130 INFO L226 Difference]: Without dead ends: 325 [2020-10-14 07:56:02,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:56:02,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-10-14 07:56:02,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 323. [2020-10-14 07:56:02,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-10-14 07:56:02,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 430 transitions. [2020-10-14 07:56:02,175 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 430 transitions. Word has length 97 [2020-10-14 07:56:02,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:02,175 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 430 transitions. [2020-10-14 07:56:02,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 07:56:02,176 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 430 transitions. [2020-10-14 07:56:02,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 07:56:02,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:02,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:56:02,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:56:02,178 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:02,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:02,179 INFO L82 PathProgramCache]: Analyzing trace with hash -714053667, now seen corresponding path program 1 times [2020-10-14 07:56:02,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:02,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353214156] [2020-10-14 07:56:02,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:02,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:02,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:02,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:02,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:07,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:07,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:56:07,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:56:07,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 07:56:07,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:07,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:07,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:07,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 07:56:07,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:56:07,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:07,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:07,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:07,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:07,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:07,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:07,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:07,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:07,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:07,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:07,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:07,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:07,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:07,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:07,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:07,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:07,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:56:07,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:07,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:56:07,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:07,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:07,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:07,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:07,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:56:07,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:07,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:56:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:07,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:07,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:07,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:07,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:07,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:07,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:07,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:07,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:07,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:07,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:07,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:07,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 07:56:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:07,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:07,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:07,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:07,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:07,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:07,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:07,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:07,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:07,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:07,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:07,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:07,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:56:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:07,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:07,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:07,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:07,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:07,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:56:07,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:07,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:07,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:07,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:07,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:07,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:07,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:56:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:07,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:07,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:07,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:07,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:07,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:56:07,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:07,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:07,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:07,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:07,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:07,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:07,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:56:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:07,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:07,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:07,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:07,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:07,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:07,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:07,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:07,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:07,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:07,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:07,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:07,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 07:56:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:07,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:07,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:07,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:07,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:07,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:07,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:07,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:07,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:07,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:07,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:07,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:07,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:56:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:07,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:07,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:07,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:56:07,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:07,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:07,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:07,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:07,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:07,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:56:07,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:07,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:07,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:56:07,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353214156] [2020-10-14 07:56:07,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:56:07,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 07:56:07,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706034289] [2020-10-14 07:56:07,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 07:56:07,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:07,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 07:56:07,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:56:07,601 INFO L87 Difference]: Start difference. First operand 323 states and 430 transitions. Second operand 11 states. [2020-10-14 07:56:07,752 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 07:56:09,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:56:09,421 INFO L93 Difference]: Finished difference Result 847 states and 1160 transitions. [2020-10-14 07:56:09,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 07:56:09,421 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 97 [2020-10-14 07:56:09,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:56:09,426 INFO L225 Difference]: With dead ends: 847 [2020-10-14 07:56:09,426 INFO L226 Difference]: Without dead ends: 573 [2020-10-14 07:56:09,428 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:56:09,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2020-10-14 07:56:09,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 571. [2020-10-14 07:56:09,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-10-14 07:56:09,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 770 transitions. [2020-10-14 07:56:09,490 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 770 transitions. Word has length 97 [2020-10-14 07:56:09,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:09,490 INFO L479 AbstractCegarLoop]: Abstraction has 571 states and 770 transitions. [2020-10-14 07:56:09,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 07:56:09,490 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 770 transitions. [2020-10-14 07:56:09,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 07:56:09,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:09,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:56:09,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:56:09,493 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:09,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:09,493 INFO L82 PathProgramCache]: Analyzing trace with hash -265828653, now seen corresponding path program 1 times [2020-10-14 07:56:09,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:09,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [511485430] [2020-10-14 07:56:09,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:09,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:09,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:09,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:12,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:14,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:14,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:56:14,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:56:14,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 07:56:14,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:14,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:14,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:14,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 07:56:14,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 07:56:14,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:14,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:14,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:14,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:14,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:14,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:14,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:14,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:14,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:14,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:14,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:14,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:14,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:14,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:14,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:14,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:14,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:56:14,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:14,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:56:14,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:14,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:14,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:14,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:14,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:14,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:56:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:14,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:14,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:14,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:14,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:14,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:14,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:14,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:14,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:14,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 07:56:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:14,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:14,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:14,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:14,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:14,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:14,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:14,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:14,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:14,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:14,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:14,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:14,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:56:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:14,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:14,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:14,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:14,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:14,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:56:14,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:14,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:14,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:14,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:14,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:14,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:14,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:56:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:14,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:14,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:14,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:14,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:14,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:14,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:14,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:14,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:14,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:14,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:14,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:14,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:56:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:14,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:14,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:14,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:14,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:14,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:14,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:14,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:14,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:14,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 07:56:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:14,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:14,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:14,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:14,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:14,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:14,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:14,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:14,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:14,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:14,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:14,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:14,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:56:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:14,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:14,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:14,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:56:14,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:14,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:56:14,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:14,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:56:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:14,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:14,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:56:14,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [511485430] [2020-10-14 07:56:14,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:56:14,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 07:56:14,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887442314] [2020-10-14 07:56:14,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 07:56:14,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:14,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 07:56:14,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:56:14,922 INFO L87 Difference]: Start difference. First operand 571 states and 770 transitions. Second operand 11 states. [2020-10-14 07:56:15,074 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 07:56:16,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:56:16,729 INFO L93 Difference]: Finished difference Result 1567 states and 2148 transitions. [2020-10-14 07:56:16,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 07:56:16,731 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 97 [2020-10-14 07:56:16,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:56:16,739 INFO L225 Difference]: With dead ends: 1567 [2020-10-14 07:56:16,739 INFO L226 Difference]: Without dead ends: 1045 [2020-10-14 07:56:16,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:56:16,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2020-10-14 07:56:16,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1043. [2020-10-14 07:56:16,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2020-10-14 07:56:16,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1410 transitions. [2020-10-14 07:56:16,832 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1410 transitions. Word has length 97 [2020-10-14 07:56:16,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:16,832 INFO L479 AbstractCegarLoop]: Abstraction has 1043 states and 1410 transitions. [2020-10-14 07:56:16,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 07:56:16,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1410 transitions. [2020-10-14 07:56:16,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 07:56:16,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:16,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:56:16,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:56:16,835 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:16,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:16,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1371237919, now seen corresponding path program 1 times [2020-10-14 07:56:16,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:16,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [904260023] [2020-10-14 07:56:16,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:16,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:16,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:17,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:17,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:19,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:21,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:21,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:56:21,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:56:21,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 07:56:21,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:21,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:21,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:21,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 07:56:21,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 07:56:21,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:21,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:22,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:22,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:22,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:22,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:22,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:22,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:22,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:22,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:22,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:22,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:22,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:22,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:22,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:22,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:22,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:56:22,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:22,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:22,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:22,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:22,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:22,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:22,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:56:22,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:22,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:56:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:22,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:22,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:22,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:22,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:22,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:22,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:22,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:22,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:22,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:22,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:22,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:22,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 07:56:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:22,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:22,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:22,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:22,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:22,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:56:22,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:22,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:22,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:22,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:22,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:22,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:22,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:56:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:22,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:22,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:22,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:22,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:22,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:22,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:22,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:22,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:22,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:22,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:22,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:22,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:56:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:22,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:22,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:22,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:22,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:22,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:22,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:22,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:22,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:22,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:22,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:22,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:22,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:56:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:22,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:22,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:22,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:22,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:22,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:22,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:22,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:22,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:22,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:22,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:22,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:22,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 07:56:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:22,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:22,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:22,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:22,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:22,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:22,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:22,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:22,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:22,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:22,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:22,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:22,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:56:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:22,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:22,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:22,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:56:22,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:22,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:56:22,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:22,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:56:22,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:22,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:22,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:56:22,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [904260023] [2020-10-14 07:56:22,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:56:22,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 07:56:22,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028644872] [2020-10-14 07:56:22,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 07:56:22,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:22,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 07:56:22,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:56:22,235 INFO L87 Difference]: Start difference. First operand 1043 states and 1410 transitions. Second operand 11 states. [2020-10-14 07:56:22,403 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 07:56:24,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:56:24,217 INFO L93 Difference]: Finished difference Result 2935 states and 4004 transitions. [2020-10-14 07:56:24,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 07:56:24,217 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 97 [2020-10-14 07:56:24,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:56:24,232 INFO L225 Difference]: With dead ends: 2935 [2020-10-14 07:56:24,232 INFO L226 Difference]: Without dead ends: 1941 [2020-10-14 07:56:24,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:56:24,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2020-10-14 07:56:24,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1939. [2020-10-14 07:56:24,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1939 states. [2020-10-14 07:56:24,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1939 states to 1939 states and 2610 transitions. [2020-10-14 07:56:24,420 INFO L78 Accepts]: Start accepts. Automaton has 1939 states and 2610 transitions. Word has length 97 [2020-10-14 07:56:24,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:24,422 INFO L479 AbstractCegarLoop]: Abstraction has 1939 states and 2610 transitions. [2020-10-14 07:56:24,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 07:56:24,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1939 states and 2610 transitions. [2020-10-14 07:56:24,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 07:56:24,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:24,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:56:24,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 07:56:24,424 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:24,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:24,425 INFO L82 PathProgramCache]: Analyzing trace with hash -905025899, now seen corresponding path program 1 times [2020-10-14 07:56:24,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:24,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812010456] [2020-10-14 07:56:24,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:24,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:24,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:24,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:25,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:56:29,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:56:29,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 07:56:29,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:56:29,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:56:29,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 07:56:29,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,609 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 07:56:29,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:29,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:56:29,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:29,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:29,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:56:29,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:29,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:56:29,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 07:56:29,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:56:29,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:56:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:29,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:56:29,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:29,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:29,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:29,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:29,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 07:56:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:29,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:29,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:29,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:29,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:29,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:56:29,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:29,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:56:29,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:29,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:29,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:29,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:56:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:29,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:29,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:29,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:29,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:29,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:56:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:29,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:29,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:29,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:29,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:29,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 07:56:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:29,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:56:29,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:29,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:29,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:29,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:56:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:56:29,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:56:29,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:29,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:56:29,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:29,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:56:29,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1812010456] [2020-10-14 07:56:29,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:56:29,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-14 07:56:29,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073132839] [2020-10-14 07:56:29,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 07:56:29,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:29,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 07:56:29,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:56:29,911 INFO L87 Difference]: Start difference. First operand 1939 states and 2610 transitions. Second operand 15 states. [2020-10-14 07:56:30,189 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2020-10-14 07:56:30,527 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 07:56:30,894 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 125 [2020-10-14 07:56:31,032 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-14 07:56:31,185 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-14 07:56:31,339 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-14 07:56:32,086 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-14 07:56:32,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:56:32,369 INFO L93 Difference]: Finished difference Result 3877 states and 5251 transitions. [2020-10-14 07:56:32,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 07:56:32,369 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 97 [2020-10-14 07:56:32,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:56:32,383 INFO L225 Difference]: With dead ends: 3877 [2020-10-14 07:56:32,383 INFO L226 Difference]: Without dead ends: 1987 [2020-10-14 07:56:32,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=211, Invalid=545, Unknown=0, NotChecked=0, Total=756 [2020-10-14 07:56:32,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2020-10-14 07:56:32,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1939. [2020-10-14 07:56:32,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1939 states. [2020-10-14 07:56:32,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1939 states to 1939 states and 2594 transitions. [2020-10-14 07:56:32,647 INFO L78 Accepts]: Start accepts. Automaton has 1939 states and 2594 transitions. Word has length 97 [2020-10-14 07:56:32,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:32,648 INFO L479 AbstractCegarLoop]: Abstraction has 1939 states and 2594 transitions. [2020-10-14 07:56:32,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 07:56:32,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1939 states and 2594 transitions. [2020-10-14 07:56:32,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 07:56:32,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:32,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:56:32,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 07:56:32,650 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:32,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:32,650 INFO L82 PathProgramCache]: Analyzing trace with hash 116042455, now seen corresponding path program 1 times [2020-10-14 07:56:32,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:32,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56318736] [2020-10-14 07:56:32,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:32,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:32,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:34,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:34,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:56:34,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:56:34,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1339 [2020-10-14 07:56:34,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:34,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:34,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:56:34,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:56:34,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 07:56:34,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:34,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:34,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:34,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:34,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:34,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:34,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:56:34,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:34,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:34,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:34,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:34,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:56:34,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:34,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:34,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:34,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:34,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:56:34,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:34,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:56:34,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:34,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:34,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:34,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:34,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:56:34,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:34,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:56:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:34,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:34,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:34,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:34,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:34,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:56:34,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:34,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:34,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:34,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:34,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:34,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:34,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 07:56:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:34,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:34,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:34,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:34,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:34,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:34,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:34,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:34,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:34,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:34,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:34,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:34,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:56:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:34,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:34,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:34,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:34,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:34,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:34,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:34,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:34,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:34,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:34,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:34,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:34,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:56:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:34,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:34,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:34,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:34,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:34,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:34,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:34,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:34,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:34,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:34,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:34,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:34,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:56:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:34,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:34,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:34,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:34,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:34,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:34,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:34,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:34,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:34,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 07:56:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:34,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:34,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:34,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:34,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:34,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:34,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:34,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:34,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:34,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:34,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:34,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:34,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:56:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:34,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:34,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:34,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:56:34,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:34,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:56:34,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:34,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:34,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:34,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:56:34,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:34,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:34,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:56:34,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [56318736] [2020-10-14 07:56:34,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:56:34,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-14 07:56:34,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583872293] [2020-10-14 07:56:34,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 07:56:34,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:34,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 07:56:34,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:56:34,402 INFO L87 Difference]: Start difference. First operand 1939 states and 2594 transitions. Second operand 15 states. [2020-10-14 07:56:34,680 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2020-10-14 07:56:35,346 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 125 [2020-10-14 07:56:35,655 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-14 07:56:36,416 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-14 07:56:36,557 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-10-14 07:56:36,722 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-14 07:56:37,176 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-14 07:56:37,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:56:37,378 INFO L93 Difference]: Finished difference Result 3877 states and 5219 transitions. [2020-10-14 07:56:37,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 07:56:37,379 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 97 [2020-10-14 07:56:37,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:56:37,389 INFO L225 Difference]: With dead ends: 3877 [2020-10-14 07:56:37,389 INFO L226 Difference]: Without dead ends: 1987 [2020-10-14 07:56:37,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=256, Invalid=674, Unknown=0, NotChecked=0, Total=930 [2020-10-14 07:56:37,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2020-10-14 07:56:37,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1939. [2020-10-14 07:56:37,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1939 states. [2020-10-14 07:56:37,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1939 states to 1939 states and 2578 transitions. [2020-10-14 07:56:37,591 INFO L78 Accepts]: Start accepts. Automaton has 1939 states and 2578 transitions. Word has length 97 [2020-10-14 07:56:37,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:37,591 INFO L479 AbstractCegarLoop]: Abstraction has 1939 states and 2578 transitions. [2020-10-14 07:56:37,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 07:56:37,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1939 states and 2578 transitions. [2020-10-14 07:56:37,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 07:56:37,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:37,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:56:37,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 07:56:37,593 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:37,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:37,594 INFO L82 PathProgramCache]: Analyzing trace with hash -543489067, now seen corresponding path program 1 times [2020-10-14 07:56:37,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:37,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68668987] [2020-10-14 07:56:37,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:37,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:38,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:38,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:56:38,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:38,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 459 [2020-10-14 07:56:38,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:38,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:38,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 07:56:38,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 07:56:38,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 07:56:38,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:38,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:38,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:38,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:38,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:38,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:38,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:38,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:38,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:38,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:38,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:38,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:38,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:38,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:38,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:38,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:38,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:56:38,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:38,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:56:38,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:38,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:38,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:56:38,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:38,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:56:38,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:38,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:56:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:38,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:38,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:38,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:38,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:38,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:56:38,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:38,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:38,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:38,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:38,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:38,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:38,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 07:56:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:38,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:38,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:38,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:38,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:38,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:56:38,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:38,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:38,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:38,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:38,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:38,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:38,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:56:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:38,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:38,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:38,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:38,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:38,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 07:56:38,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:38,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:38,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:38,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:38,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:38,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:38,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:56:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:38,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:38,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:38,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:38,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:38,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:56:38,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:38,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:38,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:38,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:38,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:38,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:38,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:56:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:38,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:38,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:38,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:38,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:38,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:56:38,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:38,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:38,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:38,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:38,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:38,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:38,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 07:56:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:38,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:38,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:38,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:38,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:38,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:56:38,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:38,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:38,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:38,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:38,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:38,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:38,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:56:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:38,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:38,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:38,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:56:38,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:38,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:38,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:38,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:38,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:38,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:56:38,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:56:38,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:38,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:56:38,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68668987] [2020-10-14 07:56:38,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:56:38,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-14 07:56:38,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202522768] [2020-10-14 07:56:38,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 07:56:38,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:38,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 07:56:38,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:56:38,661 INFO L87 Difference]: Start difference. First operand 1939 states and 2578 transitions. Second operand 20 states. [2020-10-14 07:56:38,820 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-14 07:56:39,208 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 07:56:39,342 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 07:56:42,578 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-14 07:56:42,707 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 07:56:42,839 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-14 07:56:42,966 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 07:56:43,096 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 07:56:49,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:56:49,930 INFO L93 Difference]: Finished difference Result 23001 states and 31021 transitions. [2020-10-14 07:56:49,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2020-10-14 07:56:49,936 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-10-14 07:56:49,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:56:50,060 INFO L225 Difference]: With dead ends: 23001 [2020-10-14 07:56:50,060 INFO L226 Difference]: Without dead ends: 21111 [2020-10-14 07:56:50,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4032 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=2105, Invalid=9451, Unknown=0, NotChecked=0, Total=11556 [2020-10-14 07:56:50,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21111 states. [2020-10-14 07:56:52,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21111 to 21091. [2020-10-14 07:56:52,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21091 states. [2020-10-14 07:56:52,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21091 states to 21091 states and 28002 transitions. [2020-10-14 07:56:52,238 INFO L78 Accepts]: Start accepts. Automaton has 21091 states and 28002 transitions. Word has length 97 [2020-10-14 07:56:52,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:52,238 INFO L479 AbstractCegarLoop]: Abstraction has 21091 states and 28002 transitions. [2020-10-14 07:56:52,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 07:56:52,239 INFO L276 IsEmpty]: Start isEmpty. Operand 21091 states and 28002 transitions. [2020-10-14 07:56:52,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-14 07:56:52,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:52,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:56:52,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 07:56:52,241 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:52,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:52,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1497842693, now seen corresponding path program 1 times [2020-10-14 07:56:52,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:52,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746525795] [2020-10-14 07:56:52,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:52,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:52,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:52,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:52,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:52,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 07:56:52,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:56:52,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-10-14 07:56:52,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:52,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:52,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:52,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-14 07:56:52,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:56:52,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:52,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:52,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:52,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:52,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:52,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:52,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:52,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:52,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:52,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:52,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:52,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:52,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:52,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:52,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:52,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:52,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:56:52,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:52,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:52,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:52,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:52,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:52,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:52,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:52,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:52,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:56:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:52,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:52,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:52,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:52,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:52,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:56:52,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:52,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:52,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:52,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:52,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:52,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:52,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 07:56:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:52,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:52,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:52,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:52,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:52,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:52,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:52,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:52,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:52,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:52,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:52,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:52,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:56:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:52,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:52,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:52,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:52,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:52,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:52,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:52,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:52,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:52,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:52,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:52,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:52,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:56:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:52,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:52,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:52,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:52,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:52,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:52,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:52,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:52,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:52,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:52,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:52,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:52,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:56:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:52,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:52,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:52,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:52,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:52,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:52,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:52,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:52,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:52,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:52,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:53,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:53,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 07:56:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:53,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:53,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:53,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:53,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:53,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:53,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:53,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:53,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:53,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:53,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:53,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:53,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:56:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:53,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:53,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:53,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:56:53,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:53,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:53,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:53,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:53,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:53,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 07:56:53,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:56:53,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:53,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:56:53,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746525795] [2020-10-14 07:56:53,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:56:53,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:56:53,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072472108] [2020-10-14 07:56:53,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:56:53,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:53,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:56:53,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:56:53,048 INFO L87 Difference]: Start difference. First operand 21091 states and 28002 transitions. Second operand 9 states. [2020-10-14 07:56:53,727 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 07:56:54,387 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-14 07:56:56,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:56:56,838 INFO L93 Difference]: Finished difference Result 53647 states and 71540 transitions. [2020-10-14 07:56:56,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:56:56,839 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-10-14 07:56:56,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:56:56,965 INFO L225 Difference]: With dead ends: 53647 [2020-10-14 07:56:56,965 INFO L226 Difference]: Without dead ends: 32605 [2020-10-14 07:56:57,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:56:57,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32605 states. [2020-10-14 07:56:59,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32605 to 32603. [2020-10-14 07:56:59,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32603 states. [2020-10-14 07:56:59,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32603 states to 32603 states and 42994 transitions. [2020-10-14 07:56:59,217 INFO L78 Accepts]: Start accepts. Automaton has 32603 states and 42994 transitions. Word has length 99 [2020-10-14 07:56:59,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:59,217 INFO L479 AbstractCegarLoop]: Abstraction has 32603 states and 42994 transitions. [2020-10-14 07:56:59,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:56:59,217 INFO L276 IsEmpty]: Start isEmpty. Operand 32603 states and 42994 transitions. [2020-10-14 07:56:59,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-14 07:56:59,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:59,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:56:59,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 07:56:59,219 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:59,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:59,219 INFO L82 PathProgramCache]: Analyzing trace with hash 2126342755, now seen corresponding path program 1 times [2020-10-14 07:56:59,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:59,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356959649] [2020-10-14 07:56:59,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:59,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:59,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:59,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:59,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 07:56:59,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:56:59,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 07:56:59,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:59,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:59,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:59,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 07:56:59,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 07:56:59,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:59,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:59,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:59,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:59,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:59,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:59,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:59,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:59,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:59,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:59,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:59,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:59,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:59,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:59,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:56:59,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:59,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:56:59,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:59,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:59,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:59,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:59,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:56:59,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:59,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:56:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:59,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:59,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:59,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:59,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:59,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:56:59,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:59,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:59,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:59,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:59,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:59,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:59,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 07:56:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:59,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:59,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:59,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:59,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:59,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:56:59,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:59,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:59,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:59,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:59,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:59,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:59,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:56:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:59,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:59,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:59,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:59,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:59,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:59,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:59,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:59,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:59,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:59,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:59,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:59,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:56:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:59,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:59,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:59,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:59,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:59,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:59,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:59,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:59,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:59,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:59,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:59,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:59,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:56:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:59,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:59,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:59,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:59,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:59,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:59,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:59,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:59,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:59,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:59,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:59,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:59,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 07:56:59,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:59,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:59,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:59,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:59,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:59,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:59,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:59,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:59,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:59,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:59,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:59,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:59,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:56:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:59,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:59,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:59,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:59,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:56:59,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:56:59,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:59,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:59,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:59,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:59,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 07:56:59,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:56:59,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:59,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:56:59,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356959649] [2020-10-14 07:56:59,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:56:59,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 07:56:59,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216601400] [2020-10-14 07:56:59,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 07:56:59,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:59,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 07:56:59,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:56:59,764 INFO L87 Difference]: Start difference. First operand 32603 states and 42994 transitions. Second operand 11 states. [2020-10-14 07:56:59,896 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 07:57:01,383 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 07:57:04,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:57:04,381 INFO L93 Difference]: Finished difference Result 73477 states and 97194 transitions. [2020-10-14 07:57:04,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 07:57:04,381 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-14 07:57:04,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:57:04,507 INFO L225 Difference]: With dead ends: 73477 [2020-10-14 07:57:04,507 INFO L226 Difference]: Without dead ends: 40923 [2020-10-14 07:57:04,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2020-10-14 07:57:04,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40923 states. [2020-10-14 07:57:08,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40923 to 40919. [2020-10-14 07:57:08,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40919 states. [2020-10-14 07:57:08,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40919 states to 40919 states and 54007 transitions. [2020-10-14 07:57:08,423 INFO L78 Accepts]: Start accepts. Automaton has 40919 states and 54007 transitions. Word has length 100 [2020-10-14 07:57:08,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:57:08,424 INFO L479 AbstractCegarLoop]: Abstraction has 40919 states and 54007 transitions. [2020-10-14 07:57:08,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 07:57:08,424 INFO L276 IsEmpty]: Start isEmpty. Operand 40919 states and 54007 transitions. [2020-10-14 07:57:08,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-14 07:57:08,425 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:57:08,425 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:57:08,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 07:57:08,425 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:57:08,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:57:08,426 INFO L82 PathProgramCache]: Analyzing trace with hash -521199580, now seen corresponding path program 1 times [2020-10-14 07:57:08,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:57:08,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [835426265] [2020-10-14 07:57:08,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:57:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:08,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:08,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:08,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 07:57:08,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:08,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-10-14 07:57:08,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:08,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:08,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:57:08,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 07:57:08,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:57:08,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:08,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:57:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:08,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:08,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:08,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:57:08,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:08,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:57:08,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:08,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:08,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:08,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:08,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:08,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:08,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:57:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:08,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:08,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:08,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:57:08,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:08,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:57:08,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:08,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:08,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:08,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:08,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:08,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:08,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:57:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:08,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:08,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:08,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:57:08,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:08,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:57:08,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:08,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:08,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:08,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:08,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:08,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:08,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 07:57:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:08,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:08,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:08,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:08,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:08,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:08,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:08,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:08,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:08,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:08,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:08,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:09,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:57:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:09,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:09,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:09,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:09,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:09,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:09,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:09,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:09,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:09,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:09,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:09,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:09,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:57:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:09,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:09,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:09,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:09,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:09,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:09,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:09,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:09,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:09,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:09,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:09,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:09,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:57:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:09,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:09,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:09,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:09,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:09,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:09,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:09,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:09,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:09,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:09,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:09,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:09,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 07:57:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:09,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:09,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:09,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:09,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:09,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:09,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:09,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:09,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:09,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:09,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:09,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:09,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:57:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:09,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:09,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:09,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:09,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:09,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:09,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:09,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:09,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:57:09,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:09,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:57:09,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:09,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:57:09,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [835426265] [2020-10-14 07:57:09,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:57:09,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-14 07:57:09,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665533292] [2020-10-14 07:57:09,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 07:57:09,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:57:09,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 07:57:09,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:57:09,149 INFO L87 Difference]: Start difference. First operand 40919 states and 54007 transitions. Second operand 14 states. [2020-10-14 07:57:10,095 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 07:57:10,218 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 07:57:10,370 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 07:57:10,513 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-14 07:57:13,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:57:13,039 INFO L93 Difference]: Finished difference Result 47791 states and 65547 transitions. [2020-10-14 07:57:13,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:57:13,039 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 100 [2020-10-14 07:57:13,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:57:13,208 INFO L225 Difference]: With dead ends: 47791 [2020-10-14 07:57:13,208 INFO L226 Difference]: Without dead ends: 47789 [2020-10-14 07:57:13,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2020-10-14 07:57:13,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47789 states. [2020-10-14 07:57:18,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47789 to 43943. [2020-10-14 07:57:18,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43943 states. [2020-10-14 07:57:18,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43943 states to 43943 states and 57063 transitions. [2020-10-14 07:57:18,208 INFO L78 Accepts]: Start accepts. Automaton has 43943 states and 57063 transitions. Word has length 100 [2020-10-14 07:57:18,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:57:18,208 INFO L479 AbstractCegarLoop]: Abstraction has 43943 states and 57063 transitions. [2020-10-14 07:57:18,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 07:57:18,208 INFO L276 IsEmpty]: Start isEmpty. Operand 43943 states and 57063 transitions. [2020-10-14 07:57:18,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-14 07:57:18,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:57:18,224 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:57:18,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 07:57:18,224 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:57:18,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:57:18,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1552961328, now seen corresponding path program 1 times [2020-10-14 07:57:18,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:57:18,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725267867] [2020-10-14 07:57:18,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:57:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:18,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:18,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:18,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:19,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:19,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:21,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:21,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:22,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:23,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:23,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-14 07:57:23,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 07:57:23,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 07:57:23,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:23,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:23,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:57:23,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:57:23,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-14 07:57:23,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:23,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:57:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:23,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:23,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:23,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:57:23,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:23,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:57:23,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:23,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:23,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:23,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:23,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:23,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:23,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:57:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:23,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:23,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:23,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:57:23,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:23,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 07:57:23,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:23,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:23,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:57:23,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:23,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:57:23,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:23,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:57:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:23,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:23,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:23,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:57:23,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:23,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:23,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:23,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:23,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:23,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:23,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:57:23,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:23,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 07:57:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:23,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:23,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:23,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:23,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:23,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:57:23,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:23,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:23,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:23,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:23,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:23,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:23,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:57:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:23,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:23,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:23,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:23,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:23,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:57:23,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:23,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:23,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:23,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:23,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:23,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:23,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:57:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:23,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:23,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:23,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:23,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:23,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:57:23,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:23,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:23,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:23,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:23,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:23,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:23,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:57:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:23,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:23,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:23,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:23,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:23,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:57:23,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:23,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:23,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:57:23,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:57:23,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:57:23,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:23,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 07:57:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:23,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:23,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:23,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:23,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:23,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:57:23,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:23,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:23,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:23,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:23,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:23,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:23,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:57:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:23,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:23,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:23,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:23,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:23,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:23,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:23,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:23,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:23,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:23,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:57:23,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:23,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:57:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:23,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:23,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:23,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:57:23,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:23,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:23,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:23,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:23,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:23,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:23,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:57:23,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:23,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 07:57:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:23,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:23,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:23,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:23,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:23,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:57:23,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:23,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:23,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:23,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:23,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:23,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:23,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 07:57:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:23,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:23,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:23,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:23,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:23,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:57:23,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:23,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:23,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:23,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:23,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:23,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 07:57:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:23,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:23,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:23,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:23,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:23,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:23,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:23,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:23,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:23,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:23,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:23,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:23,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 07:57:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:23,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:23,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:23,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:23,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:23,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:23,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:23,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:23,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:23,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:23,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:23,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:23,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-14 07:57:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:23,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:23,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:23,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:23,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:23,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:57:23,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:23,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:23,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:57:23,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:57:23,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:57:23,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:23,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-14 07:57:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:23,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:23,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:23,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:57:23,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:23,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:23,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:23,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:23,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:23,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:57:23,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:23,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:24,007 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-14 07:57:24,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725267867] [2020-10-14 07:57:24,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:57:24,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 07:57:24,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134565530] [2020-10-14 07:57:24,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 07:57:24,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:57:24,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 07:57:24,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:57:24,010 INFO L87 Difference]: Start difference. First operand 43943 states and 57063 transitions. Second operand 20 states. [2020-10-14 07:57:24,330 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 129 [2020-10-14 07:57:24,506 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 07:57:25,064 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 135 [2020-10-14 07:57:25,459 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2020-10-14 07:57:25,657 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-10-14 07:57:25,862 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-10-14 07:57:26,195 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 137 [2020-10-14 07:57:26,404 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 93 [2020-10-14 07:57:26,567 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-14 07:57:26,999 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 139 [2020-10-14 07:57:27,224 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-10-14 07:57:27,383 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-14 07:57:27,899 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 139 [2020-10-14 07:57:28,283 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-10-14 07:57:28,617 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-14 07:57:28,928 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-14 07:57:29,276 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-10-14 07:57:29,603 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 141 [2020-10-14 07:57:29,924 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2020-10-14 07:57:30,544 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 143 [2020-10-14 07:57:30,722 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-14 07:57:30,900 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-14 07:57:31,079 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-10-14 07:57:31,449 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-10-14 07:57:31,681 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-14 07:57:31,855 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-14 07:57:32,175 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2020-10-14 07:57:35,198 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-14 07:57:40,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:57:40,152 INFO L93 Difference]: Finished difference Result 168249 states and 218546 transitions. [2020-10-14 07:57:40,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-10-14 07:57:40,153 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 152 [2020-10-14 07:57:40,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:57:40,831 INFO L225 Difference]: With dead ends: 168249 [2020-10-14 07:57:40,831 INFO L226 Difference]: Without dead ends: 124359 [2020-10-14 07:57:40,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1089 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=916, Invalid=3506, Unknown=0, NotChecked=0, Total=4422 [2020-10-14 07:57:41,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124359 states. [2020-10-14 07:57:51,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124359 to 122675. [2020-10-14 07:57:51,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122675 states. [2020-10-14 07:57:52,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122675 states to 122675 states and 158847 transitions. [2020-10-14 07:57:52,209 INFO L78 Accepts]: Start accepts. Automaton has 122675 states and 158847 transitions. Word has length 152 [2020-10-14 07:57:52,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:57:52,210 INFO L479 AbstractCegarLoop]: Abstraction has 122675 states and 158847 transitions. [2020-10-14 07:57:52,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 07:57:52,210 INFO L276 IsEmpty]: Start isEmpty. Operand 122675 states and 158847 transitions. [2020-10-14 07:57:52,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-14 07:57:52,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:57:52,241 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:57:52,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 07:57:52,241 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:57:52,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:57:52,242 INFO L82 PathProgramCache]: Analyzing trace with hash -198441188, now seen corresponding path program 1 times [2020-10-14 07:57:52,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:57:52,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [895061693] [2020-10-14 07:57:52,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:57:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:52,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:52,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:52,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:54,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:54,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:56,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:57,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:57,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-14 07:57:57,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:57:57,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 07:57:57,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:57,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:57,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:57:57,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:57:57,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-14 07:57:57,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:57,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:57:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:57,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:57,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:57,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:57:57,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:57,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:57:57,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:57,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:57,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:57,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:57,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:57,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:57,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:57:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:57,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:57,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:57,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:57:57,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:57,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:57:57,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:57,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:57,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:57:57,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:57,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:57:57,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:57,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:57:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:57,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:57,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:57,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:57:57,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:57,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:57,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:57,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:57:57,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:57,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 07:57:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:57,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:57,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:57,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:57,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:57,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:57:57,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:57,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:57,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:57,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:57,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:57,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:59,398 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification that was a NOOP. DAG size: 16 [2020-10-14 07:57:59,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:57:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:59,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:59,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:59,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:59,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:59,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:57:59,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:59,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:59,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:59,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:59,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:59,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:59,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:57:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:59,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:59,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:59,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:59,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:59,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:57:59,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:59,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:59,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:57:59,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:57:59,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:57:59,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:59,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:57:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:59,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:59,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:59,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:59,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:59,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:57:59,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:59,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:59,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:59,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:59,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:59,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:59,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 07:57:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:59,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:59,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:59,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:59,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:59,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:57:59,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:59,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:59,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:59,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:59,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:59,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:59,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:57:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:59,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:59,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:59,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:59,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:59,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:59,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:59,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:59,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:59,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:57:59,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:59,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:57:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:59,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:59,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:59,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:57:59,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:59,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:59,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:59,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:59,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:59,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:59,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:57:59,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:59,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 07:57:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:59,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:59,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:59,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:59,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:59,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:57:59,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:59,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:59,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:59,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:59,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:59,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:59,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 07:57:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:59,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:59,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:59,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:59,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:59,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:59,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:59,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:59,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:59,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:59,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:59,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:59,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 07:57:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:59,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:59,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:59,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:59,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:59,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:59,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:59,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:59,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:59,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:59,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:59,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:59,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 07:57:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:59,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:59,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:59,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:59,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:59,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:57:59,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:59,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:59,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:57:59,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:57:59,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:57:59,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:59,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 07:57:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:59,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:59,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:59,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:59,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:59,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:59,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:59,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:59,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:59,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:57:59,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:59,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:59,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-14 07:57:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:59,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:59,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:59,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:57:59,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:59,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:57:59,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:59,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:57:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:59,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:59,772 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-14 07:57:59,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [895061693] [2020-10-14 07:57:59,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:57:59,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 07:57:59,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093005562] [2020-10-14 07:57:59,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 07:57:59,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:57:59,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 07:57:59,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:57:59,774 INFO L87 Difference]: Start difference. First operand 122675 states and 158847 transitions. Second operand 20 states. [2020-10-14 07:57:59,953 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 07:58:00,109 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-14 07:58:00,543 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 127 [2020-10-14 07:58:01,020 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-10-14 07:58:01,314 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 129 [2020-10-14 07:58:01,468 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2020-10-14 07:58:01,600 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-14 07:58:01,915 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 129 [2020-10-14 07:58:02,090 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2020-10-14 07:58:02,220 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-14 07:58:02,434 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-14 07:58:02,562 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-10-14 07:58:02,895 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 129 [2020-10-14 07:58:03,195 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-14 07:58:03,458 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-14 07:58:03,713 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2020-10-14 07:58:04,006 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 131 [2020-10-14 07:58:04,285 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2020-10-14 07:58:04,737 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 131 [2020-10-14 07:58:04,910 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-14 07:58:05,076 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-14 07:58:05,227 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2020-10-14 07:58:05,558 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2020-10-14 07:58:05,740 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2020-10-14 07:58:05,883 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2020-10-14 07:58:06,126 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-10-14 07:58:06,744 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-14 07:58:06,919 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2020-10-14 07:58:10,600 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-14 07:58:32,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:58:32,459 INFO L93 Difference]: Finished difference Result 461857 states and 602142 transitions. [2020-10-14 07:58:32,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-10-14 07:58:32,459 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 152 [2020-10-14 07:58:32,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:58:33,608 INFO L225 Difference]: With dead ends: 461857 [2020-10-14 07:58:33,608 INFO L226 Difference]: Without dead ends: 372555 [2020-10-14 07:58:33,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1209 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=983, Invalid=3847, Unknown=0, NotChecked=0, Total=4830 [2020-10-14 07:58:34,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372555 states.