/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 14:42:09,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 14:42:09,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 14:42:09,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 14:42:09,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 14:42:09,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 14:42:09,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 14:42:09,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 14:42:09,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 14:42:09,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 14:42:09,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 14:42:09,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 14:42:09,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 14:42:09,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 14:42:09,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 14:42:09,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 14:42:09,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 14:42:09,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 14:42:09,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 14:42:09,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 14:42:09,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 14:42:09,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 14:42:09,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 14:42:09,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 14:42:09,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 14:42:09,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 14:42:09,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 14:42:09,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 14:42:09,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 14:42:09,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 14:42:09,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 14:42:09,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 14:42:09,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 14:42:09,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 14:42:09,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 14:42:09,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 14:42:09,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 14:42:09,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 14:42:09,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 14:42:09,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 14:42:09,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 14:42:09,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 14:42:09,647 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 14:42:09,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 14:42:09,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 14:42:09,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 14:42:09,649 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 14:42:09,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 14:42:09,650 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 14:42:09,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 14:42:09,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 14:42:09,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 14:42:09,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 14:42:09,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 14:42:09,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 14:42:09,652 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 14:42:09,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 14:42:09,653 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 14:42:09,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 14:42:09,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 14:42:09,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 14:42:09,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 14:42:09,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 14:42:09,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 14:42:09,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 14:42:09,655 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 14:42:09,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 14:42:09,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 14:42:09,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 14:42:09,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 14:42:09,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 14:42:09,656 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 14:42:09,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 14:42:09,941 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 14:42:09,944 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 14:42:09,946 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 14:42:09,946 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 14:42:09,947 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-13 14:42:10,006 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f01e3f0f3/468b543ad0774f7298f886952c93915a/FLAG9cfd4413a [2020-10-13 14:42:10,614 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 14:42:10,615 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-13 14:42:10,639 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f01e3f0f3/468b543ad0774f7298f886952c93915a/FLAG9cfd4413a [2020-10-13 14:42:10,792 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f01e3f0f3/468b543ad0774f7298f886952c93915a [2020-10-13 14:42:10,802 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 14:42:10,804 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 14:42:10,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 14:42:10,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 14:42:10,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 14:42:10,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:42:10" (1/1) ... [2020-10-13 14:42:10,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363f8acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:42:10, skipping insertion in model container [2020-10-13 14:42:10,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:42:10" (1/1) ... [2020-10-13 14:42:10,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 14:42:10,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 14:42:11,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 14:42:11,956 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 14:42:12,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 14:42:12,491 INFO L208 MainTranslator]: Completed translation [2020-10-13 14:42:12,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:42:12 WrapperNode [2020-10-13 14:42:12,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 14:42:12,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 14:42:12,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 14:42:12,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 14:42:12,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:42:12" (1/1) ... [2020-10-13 14:42:12,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:42:12" (1/1) ... [2020-10-13 14:42:12,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:42:12" (1/1) ... [2020-10-13 14:42:12,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:42:12" (1/1) ... [2020-10-13 14:42:12,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:42:12" (1/1) ... [2020-10-13 14:42:12,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:42:12" (1/1) ... [2020-10-13 14:42:12,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:42:12" (1/1) ... [2020-10-13 14:42:12,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 14:42:12,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 14:42:12,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 14:42:12,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 14:42:12,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:42:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 14:42:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 14:42:12,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 14:42:12,732 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 14:42:12,732 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 14:42:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 14:42:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 14:42:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 14:42:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-13 14:42:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 14:42:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 14:42:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 14:42:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 14:42:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 14:42:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 14:42:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 14:42:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 14:42:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 14:42:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 14:42:12,737 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 14:42:12,737 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 14:42:12,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 14:42:12,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 14:42:15,033 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 14:42:15,034 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 14:42:15,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:42:15 BoogieIcfgContainer [2020-10-13 14:42:15,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 14:42:15,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 14:42:15,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 14:42:15,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 14:42:15,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 02:42:10" (1/3) ... [2020-10-13 14:42:15,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27911363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:42:15, skipping insertion in model container [2020-10-13 14:42:15,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:42:12" (2/3) ... [2020-10-13 14:42:15,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27911363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:42:15, skipping insertion in model container [2020-10-13 14:42:15,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:42:15" (3/3) ... [2020-10-13 14:42:15,052 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-13 14:42:15,063 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 14:42:15,071 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-13 14:42:15,086 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-13 14:42:15,113 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 14:42:15,113 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 14:42:15,113 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 14:42:15,114 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 14:42:15,114 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 14:42:15,114 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 14:42:15,114 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 14:42:15,114 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 14:42:15,145 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states. [2020-10-13 14:42:15,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-13 14:42:15,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:42:15,192 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] [2020-10-13 14:42:15,192 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:42:15,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:42:15,199 INFO L82 PathProgramCache]: Analyzing trace with hash 57149415, now seen corresponding path program 1 times [2020-10-13 14:42:15,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:42:15,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1730977026] [2020-10-13 14:42:15,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:42:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:42:15,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:15,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:16,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:16,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:16,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:17,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:20,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:42:20,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 14:42:20,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 14:42:20,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-13 14:42:20,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:42:20,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:42:20,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-13 14:42:20,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 14:42:20,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-13 14:42:21,281 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:42:21,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:42:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:42:21,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:21,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:42:21,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:42:21,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:42:21,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 14:42:21,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:42:21,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:42:21,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:42:21,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:42:21,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:42:21,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:42:21,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1730977026] [2020-10-13 14:42:21,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:42:21,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 14:42:21,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357481481] [2020-10-13 14:42:21,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 14:42:21,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:42:21,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 14:42:21,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:42:21,380 INFO L87 Difference]: Start difference. First operand 707 states. Second operand 4 states. [2020-10-13 14:42:22,611 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 305 [2020-10-13 14:42:28,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:42:28,254 INFO L93 Difference]: Finished difference Result 1070 states and 1856 transitions. [2020-10-13 14:42:28,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 14:42:28,258 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2020-10-13 14:42:28,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:42:28,280 INFO L225 Difference]: With dead ends: 1070 [2020-10-13 14:42:28,280 INFO L226 Difference]: Without dead ends: 846 [2020-10-13 14:42:28,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:42:28,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2020-10-13 14:42:28,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 844. [2020-10-13 14:42:28,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 844 states. [2020-10-13 14:42:28,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1154 transitions. [2020-10-13 14:42:28,411 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1154 transitions. Word has length 66 [2020-10-13 14:42:28,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:42:28,412 INFO L479 AbstractCegarLoop]: Abstraction has 844 states and 1154 transitions. [2020-10-13 14:42:28,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 14:42:28,412 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1154 transitions. [2020-10-13 14:42:28,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-13 14:42:28,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:42:28,421 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] [2020-10-13 14:42:28,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 14:42:28,422 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:42:28,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:42:28,423 INFO L82 PathProgramCache]: Analyzing trace with hash -118466614, now seen corresponding path program 1 times [2020-10-13 14:42:28,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:42:28,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902671019] [2020-10-13 14:42:28,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:42:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:42:28,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:28,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:28,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:29,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:29,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:29,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:29,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:30,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:30,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:31,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:31,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:32,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:33,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:42:33,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 14:42:33,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 14:42:33,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 14:42:33,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:42:33,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:42:33,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 14:42:33,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 14:42:33,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-13 14:42:34,176 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:42:34,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:42:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:42:34,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:34,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:42:34,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:42:34,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:42:34,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 14:42:34,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:42:34,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:42:34,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:42:34,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:42:34,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:42:34,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:42:34,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902671019] [2020-10-13 14:42:34,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:42:34,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:42:34,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569523885] [2020-10-13 14:42:34,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:42:34,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:42:34,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:42:34,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:42:34,228 INFO L87 Difference]: Start difference. First operand 844 states and 1154 transitions. Second operand 7 states. [2020-10-13 14:42:34,928 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-13 14:42:39,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:42:39,728 INFO L93 Difference]: Finished difference Result 3150 states and 4603 transitions. [2020-10-13 14:42:39,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:42:39,729 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2020-10-13 14:42:39,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:42:39,746 INFO L225 Difference]: With dead ends: 3150 [2020-10-13 14:42:39,746 INFO L226 Difference]: Without dead ends: 2426 [2020-10-13 14:42:39,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:42:39,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2020-10-13 14:42:39,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 1984. [2020-10-13 14:42:39,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1984 states. [2020-10-13 14:42:39,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 2886 transitions. [2020-10-13 14:42:39,915 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 2886 transitions. Word has length 67 [2020-10-13 14:42:39,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:42:39,915 INFO L479 AbstractCegarLoop]: Abstraction has 1984 states and 2886 transitions. [2020-10-13 14:42:39,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:42:39,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 2886 transitions. [2020-10-13 14:42:39,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-13 14:42:39,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:42:39,920 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] [2020-10-13 14:42:39,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 14:42:39,920 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:42:39,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:42:39,921 INFO L82 PathProgramCache]: Analyzing trace with hash -420475535, now seen corresponding path program 1 times [2020-10-13 14:42:39,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:42:39,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [558009782] [2020-10-13 14:42:39,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:42:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:42:40,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:40,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:40,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:40,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:40,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:40,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:41,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:41,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:44,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:42:44,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 14:42:44,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 14:42:44,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 14:42:44,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:42:44,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:42:44,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-13 14:42:44,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 14:42:44,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:42:45,776 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:42:45,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:42:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:42:45,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:45,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:42:45,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:42:45,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:42:45,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 14:42:45,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:42:45,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:42:45,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:42:45,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:42:45,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:42:45,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:42:45,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [558009782] [2020-10-13 14:42:45,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:42:45,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 14:42:45,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197268147] [2020-10-13 14:42:45,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 14:42:45,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:42:45,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 14:42:45,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:42:45,872 INFO L87 Difference]: Start difference. First operand 1984 states and 2886 transitions. Second operand 4 states. [2020-10-13 14:42:46,553 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-13 14:42:49,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:42:49,894 INFO L93 Difference]: Finished difference Result 4664 states and 6896 transitions. [2020-10-13 14:42:49,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 14:42:49,895 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-13 14:42:49,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:42:49,915 INFO L225 Difference]: With dead ends: 4664 [2020-10-13 14:42:49,915 INFO L226 Difference]: Without dead ends: 3154 [2020-10-13 14:42:49,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:42:49,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3154 states. [2020-10-13 14:42:50,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3154 to 3131. [2020-10-13 14:42:50,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3131 states. [2020-10-13 14:42:50,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 4567 transitions. [2020-10-13 14:42:50,088 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 4567 transitions. Word has length 67 [2020-10-13 14:42:50,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:42:50,089 INFO L479 AbstractCegarLoop]: Abstraction has 3131 states and 4567 transitions. [2020-10-13 14:42:50,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 14:42:50,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 4567 transitions. [2020-10-13 14:42:50,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-13 14:42:50,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:42:50,100 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] [2020-10-13 14:42:50,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 14:42:50,101 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:42:50,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:42:50,101 INFO L82 PathProgramCache]: Analyzing trace with hash 725983586, now seen corresponding path program 1 times [2020-10-13 14:42:50,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:42:50,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721143686] [2020-10-13 14:42:50,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:42:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:42:50,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:50,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:50,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:50,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:50,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:52,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:52,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:52,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:53,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:55,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:42:55,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 14:42:55,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 14:42:55,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-13 14:42:55,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:42:55,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:42:55,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-13 14:42:55,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 14:42:55,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:42:56,087 WARN L193 SmtUtils]: Spent 883.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:42:56,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:42:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:42:56,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:42:56,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:42:56,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:42:56,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:42:56,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 14:42:56,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:42:56,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:42:56,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:42:56,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:42:56,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:42:56,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:42:56,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721143686] [2020-10-13 14:42:56,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:42:56,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 14:42:56,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555675843] [2020-10-13 14:42:56,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 14:42:56,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:42:56,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 14:42:56,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:42:56,170 INFO L87 Difference]: Start difference. First operand 3131 states and 4567 transitions. Second operand 4 states. [2020-10-13 14:42:57,090 WARN L193 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-13 14:43:00,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:43:00,491 INFO L93 Difference]: Finished difference Result 7606 states and 11126 transitions. [2020-10-13 14:43:00,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 14:43:00,492 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-13 14:43:00,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:43:00,517 INFO L225 Difference]: With dead ends: 7606 [2020-10-13 14:43:00,517 INFO L226 Difference]: Without dead ends: 5392 [2020-10-13 14:43:00,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:43:00,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5392 states. [2020-10-13 14:43:00,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5392 to 5388. [2020-10-13 14:43:00,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5388 states. [2020-10-13 14:43:00,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5388 states to 5388 states and 7732 transitions. [2020-10-13 14:43:00,749 INFO L78 Accepts]: Start accepts. Automaton has 5388 states and 7732 transitions. Word has length 67 [2020-10-13 14:43:00,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:43:00,749 INFO L479 AbstractCegarLoop]: Abstraction has 5388 states and 7732 transitions. [2020-10-13 14:43:00,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 14:43:00,750 INFO L276 IsEmpty]: Start isEmpty. Operand 5388 states and 7732 transitions. [2020-10-13 14:43:00,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-13 14:43:00,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:43:00,756 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] [2020-10-13 14:43:00,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 14:43:00,756 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:43:00,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:43:00,759 INFO L82 PathProgramCache]: Analyzing trace with hash 114688679, now seen corresponding path program 1 times [2020-10-13 14:43:00,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:43:00,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1734528528] [2020-10-13 14:43:00,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:43:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:43:00,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:00,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:00,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:01,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:01,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:01,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:01,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:01,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:02,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:02,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:02,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:04,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:04,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:05,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:43:05,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 14:43:05,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:43:05,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-13 14:43:05,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:43:05,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:43:05,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 14:43:05,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 14:43:05,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:43:06,589 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:43:06,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:43:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:43:06,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:06,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:43:06,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:43:06,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:43:06,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 14:43:06,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:43:06,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:43:06,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:43:06,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:43:06,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:43:06,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:43:06,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1734528528] [2020-10-13 14:43:06,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:43:06,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 14:43:06,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349269519] [2020-10-13 14:43:06,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:43:06,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:43:06,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:43:06,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:43:06,632 INFO L87 Difference]: Start difference. First operand 5388 states and 7732 transitions. Second operand 6 states. [2020-10-13 14:43:11,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:43:11,001 INFO L93 Difference]: Finished difference Result 21212 states and 31314 transitions. [2020-10-13 14:43:11,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 14:43:11,002 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2020-10-13 14:43:11,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:43:11,078 INFO L225 Difference]: With dead ends: 21212 [2020-10-13 14:43:11,078 INFO L226 Difference]: Without dead ends: 17568 [2020-10-13 14:43:11,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-13 14:43:11,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17568 states. [2020-10-13 14:43:11,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17568 to 5412. [2020-10-13 14:43:11,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5412 states. [2020-10-13 14:43:11,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5412 states to 5412 states and 7730 transitions. [2020-10-13 14:43:11,416 INFO L78 Accepts]: Start accepts. Automaton has 5412 states and 7730 transitions. Word has length 68 [2020-10-13 14:43:11,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:43:11,417 INFO L479 AbstractCegarLoop]: Abstraction has 5412 states and 7730 transitions. [2020-10-13 14:43:11,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:43:11,417 INFO L276 IsEmpty]: Start isEmpty. Operand 5412 states and 7730 transitions. [2020-10-13 14:43:11,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-13 14:43:11,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:43:11,426 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] [2020-10-13 14:43:11,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 14:43:11,427 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:43:11,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:43:11,427 INFO L82 PathProgramCache]: Analyzing trace with hash 930457738, now seen corresponding path program 1 times [2020-10-13 14:43:11,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:43:11,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226894849] [2020-10-13 14:43:11,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:43:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:43:11,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:11,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:11,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:11,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:11,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:12,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:12,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:12,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:12,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:12,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:12,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:12,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:12,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:13,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:13,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:14,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:14,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:16,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:43:16,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 14:43:16,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-13 14:43:16,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 14:43:16,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:43:16,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:43:16,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 14:43:16,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 14:43:16,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:43:17,152 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:43:17,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:43:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:43:17,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:17,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:43:17,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:43:17,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:43:17,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 14:43:17,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:43:17,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:43:17,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:43:17,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:43:17,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:43:17,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:43:17,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226894849] [2020-10-13 14:43:17,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:43:17,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 14:43:17,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101774574] [2020-10-13 14:43:17,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:43:17,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:43:17,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:43:17,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:43:17,197 INFO L87 Difference]: Start difference. First operand 5412 states and 7730 transitions. Second operand 6 states. [2020-10-13 14:43:20,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:43:20,980 INFO L93 Difference]: Finished difference Result 19173 states and 27932 transitions. [2020-10-13 14:43:20,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 14:43:20,980 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2020-10-13 14:43:20,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:43:21,015 INFO L225 Difference]: With dead ends: 19173 [2020-10-13 14:43:21,015 INFO L226 Difference]: Without dead ends: 15332 [2020-10-13 14:43:21,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-13 14:43:21,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15332 states. [2020-10-13 14:43:21,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15332 to 5444. [2020-10-13 14:43:21,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5444 states. [2020-10-13 14:43:21,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 7710 transitions. [2020-10-13 14:43:21,342 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 7710 transitions. Word has length 68 [2020-10-13 14:43:21,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:43:21,343 INFO L479 AbstractCegarLoop]: Abstraction has 5444 states and 7710 transitions. [2020-10-13 14:43:21,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:43:21,343 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 7710 transitions. [2020-10-13 14:43:21,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-13 14:43:21,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:43:21,350 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] [2020-10-13 14:43:21,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 14:43:21,350 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:43:21,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:43:21,351 INFO L82 PathProgramCache]: Analyzing trace with hash 578086859, now seen corresponding path program 1 times [2020-10-13 14:43:21,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:43:21,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [759060351] [2020-10-13 14:43:21,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:43:21,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:43:21,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:21,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:21,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:21,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:21,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:21,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:21,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:21,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:21,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:23,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:23,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:24,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:24,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:26,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:43:26,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 14:43:26,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:43:26,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 14:43:26,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:43:26,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:43:26,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 14:43:26,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 14:43:26,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:43:27,115 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:43:27,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:43:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:43:27,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:27,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:43:27,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:43:27,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:43:27,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 14:43:27,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:43:27,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:43:27,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:43:27,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:43:27,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:43:27,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:43:27,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [759060351] [2020-10-13 14:43:27,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:43:27,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:43:27,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504438280] [2020-10-13 14:43:27,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:43:27,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:43:27,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:43:27,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:43:27,154 INFO L87 Difference]: Start difference. First operand 5444 states and 7710 transitions. Second operand 7 states. [2020-10-13 14:43:27,874 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-13 14:43:33,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:43:33,137 INFO L93 Difference]: Finished difference Result 22546 states and 32739 transitions. [2020-10-13 14:43:33,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:43:33,138 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2020-10-13 14:43:33,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:43:33,171 INFO L225 Difference]: With dead ends: 22546 [2020-10-13 14:43:33,172 INFO L226 Difference]: Without dead ends: 17803 [2020-10-13 14:43:33,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:43:33,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17803 states. [2020-10-13 14:43:33,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17803 to 14193. [2020-10-13 14:43:33,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14193 states. [2020-10-13 14:43:33,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14193 states to 14193 states and 20492 transitions. [2020-10-13 14:43:33,846 INFO L78 Accepts]: Start accepts. Automaton has 14193 states and 20492 transitions. Word has length 70 [2020-10-13 14:43:33,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:43:33,846 INFO L479 AbstractCegarLoop]: Abstraction has 14193 states and 20492 transitions. [2020-10-13 14:43:33,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:43:33,846 INFO L276 IsEmpty]: Start isEmpty. Operand 14193 states and 20492 transitions. [2020-10-13 14:43:33,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-13 14:43:33,857 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:43:33,857 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] [2020-10-13 14:43:33,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 14:43:33,858 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:43:33,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:43:33,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1558062315, now seen corresponding path program 1 times [2020-10-13 14:43:33,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:43:33,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1304387433] [2020-10-13 14:43:33,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:43:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:43:33,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:33,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:34,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:34,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:34,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:34,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:34,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:34,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:34,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:34,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:38,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:43:38,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 14:43:38,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-13 14:43:38,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 14:43:38,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:43:38,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:43:38,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-13 14:43:38,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 14:43:38,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:43:39,614 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:43:39,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:43:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:43:39,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:39,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:43:39,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:43:39,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:43:39,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 14:43:39,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:43:39,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:43:39,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:43:39,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:43:39,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:43:39,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:43:39,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1304387433] [2020-10-13 14:43:39,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:43:39,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:43:39,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753419634] [2020-10-13 14:43:39,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:43:39,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:43:39,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:43:39,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:43:39,646 INFO L87 Difference]: Start difference. First operand 14193 states and 20492 transitions. Second operand 7 states. [2020-10-13 14:43:40,373 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-13 14:43:46,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:43:46,623 INFO L93 Difference]: Finished difference Result 59843 states and 88484 transitions. [2020-10-13 14:43:46,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:43:46,624 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2020-10-13 14:43:46,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:43:46,703 INFO L225 Difference]: With dead ends: 59843 [2020-10-13 14:43:46,703 INFO L226 Difference]: Without dead ends: 48336 [2020-10-13 14:43:46,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:43:46,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48336 states. [2020-10-13 14:43:47,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48336 to 16848. [2020-10-13 14:43:47,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16848 states. [2020-10-13 14:43:47,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16848 states to 16848 states and 24574 transitions. [2020-10-13 14:43:47,874 INFO L78 Accepts]: Start accepts. Automaton has 16848 states and 24574 transitions. Word has length 70 [2020-10-13 14:43:47,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:43:47,875 INFO L479 AbstractCegarLoop]: Abstraction has 16848 states and 24574 transitions. [2020-10-13 14:43:47,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:43:47,875 INFO L276 IsEmpty]: Start isEmpty. Operand 16848 states and 24574 transitions. [2020-10-13 14:43:47,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-13 14:43:47,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:43:47,881 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] [2020-10-13 14:43:47,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 14:43:47,881 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:43:47,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:43:47,882 INFO L82 PathProgramCache]: Analyzing trace with hash -498509415, now seen corresponding path program 1 times [2020-10-13 14:43:47,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:43:47,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951321310] [2020-10-13 14:43:47,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:43:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:43:47,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:47,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:47,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:48,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:48,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:48,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:48,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:49,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:49,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:49,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:49,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:49,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:50,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:50,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:51,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:52,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:52,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:43:52,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 14:43:52,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-13 14:43:52,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-13 14:43:52,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:43:52,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:43:52,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 14:43:52,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 14:43:52,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:43:53,560 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:43:53,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:43:53,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:43:53,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:43:53,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:43:53,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:43:53,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:43:53,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 14:43:53,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:43:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:43:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:43:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:43:53,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:43:53,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:43:53,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951321310] [2020-10-13 14:43:53,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:43:53,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 14:43:53,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495935345] [2020-10-13 14:43:53,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 14:43:53,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:43:53,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 14:43:53,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:43:53,591 INFO L87 Difference]: Start difference. First operand 16848 states and 24574 transitions. Second operand 4 states. [2020-10-13 14:43:54,263 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-13 14:43:58,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:43:58,490 INFO L93 Difference]: Finished difference Result 44731 states and 65245 transitions. [2020-10-13 14:43:58,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 14:43:58,490 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 70 [2020-10-13 14:43:58,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:43:58,521 INFO L225 Difference]: With dead ends: 44731 [2020-10-13 14:43:58,521 INFO L226 Difference]: Without dead ends: 28637 [2020-10-13 14:43:58,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:43:58,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28637 states. [2020-10-13 14:43:59,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28637 to 27265. [2020-10-13 14:43:59,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27265 states. [2020-10-13 14:43:59,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27265 states to 27265 states and 39182 transitions. [2020-10-13 14:43:59,834 INFO L78 Accepts]: Start accepts. Automaton has 27265 states and 39182 transitions. Word has length 70 [2020-10-13 14:43:59,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:43:59,835 INFO L479 AbstractCegarLoop]: Abstraction has 27265 states and 39182 transitions. [2020-10-13 14:43:59,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 14:43:59,835 INFO L276 IsEmpty]: Start isEmpty. Operand 27265 states and 39182 transitions. [2020-10-13 14:43:59,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-13 14:43:59,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:43:59,845 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] [2020-10-13 14:43:59,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 14:43:59,845 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:43:59,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:43:59,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1976760550, now seen corresponding path program 1 times [2020-10-13 14:43:59,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:43:59,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153818911] [2020-10-13 14:43:59,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:43:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:43:59,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:00,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:00,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:00,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:00,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:00,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:00,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:00,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:00,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:00,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:02,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:04,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:44:04,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 14:44:04,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-13 14:44:04,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 14:44:04,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:44:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:44:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 14:44:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 14:44:04,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:44:05,548 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:44:05,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:44:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:44:05,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:05,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:44:05,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:44:05,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:44:05,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 14:44:05,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:44:05,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:44:05,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:44:05,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:44:05,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:44:05,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:44:05,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153818911] [2020-10-13 14:44:05,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:44:05,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:44:05,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65885185] [2020-10-13 14:44:05,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:44:05,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:44:05,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:44:05,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:44:05,578 INFO L87 Difference]: Start difference. First operand 27265 states and 39182 transitions. Second operand 7 states. [2020-10-13 14:44:06,289 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-13 14:44:17,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:44:17,672 INFO L93 Difference]: Finished difference Result 154116 states and 224252 transitions. [2020-10-13 14:44:17,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:44:17,672 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2020-10-13 14:44:17,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:44:17,851 INFO L225 Difference]: With dead ends: 154116 [2020-10-13 14:44:17,851 INFO L226 Difference]: Without dead ends: 133215 [2020-10-13 14:44:17,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:44:18,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133215 states. [2020-10-13 14:44:22,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133215 to 43072. [2020-10-13 14:44:22,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43072 states. [2020-10-13 14:44:22,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43072 states to 43072 states and 62143 transitions. [2020-10-13 14:44:22,692 INFO L78 Accepts]: Start accepts. Automaton has 43072 states and 62143 transitions. Word has length 70 [2020-10-13 14:44:22,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:44:22,692 INFO L479 AbstractCegarLoop]: Abstraction has 43072 states and 62143 transitions. [2020-10-13 14:44:22,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:44:22,692 INFO L276 IsEmpty]: Start isEmpty. Operand 43072 states and 62143 transitions. [2020-10-13 14:44:22,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-13 14:44:22,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:44:22,701 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] [2020-10-13 14:44:22,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 14:44:22,702 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:44:22,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:44:22,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1308273519, now seen corresponding path program 1 times [2020-10-13 14:44:22,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:44:22,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019775169] [2020-10-13 14:44:22,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:44:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:44:22,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:22,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:22,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:22,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:23,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:23,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:23,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:23,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:23,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:23,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:24,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:24,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:27,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:44:27,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 14:44:27,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 14:44:27,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 14:44:27,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:44:27,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:44:27,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:44:27,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 14:44:27,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:44:28,447 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:44:28,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:44:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:44:28,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:28,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:44:28,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:44:28,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:44:28,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 14:44:28,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:44:28,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:44:28,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:44:28,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:44:28,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:44:28,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:44:28,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019775169] [2020-10-13 14:44:28,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:44:28,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:44:28,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536185299] [2020-10-13 14:44:28,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:44:28,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:44:28,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:44:28,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:44:28,502 INFO L87 Difference]: Start difference. First operand 43072 states and 62143 transitions. Second operand 6 states. [2020-10-13 14:44:29,214 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 14:44:33,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:44:33,964 INFO L93 Difference]: Finished difference Result 66404 states and 95958 transitions. [2020-10-13 14:44:33,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:44:33,964 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 71 [2020-10-13 14:44:33,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:44:34,005 INFO L225 Difference]: With dead ends: 66404 [2020-10-13 14:44:34,005 INFO L226 Difference]: Without dead ends: 34628 [2020-10-13 14:44:34,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 14:44:34,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34628 states. [2020-10-13 14:44:36,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34628 to 34544. [2020-10-13 14:44:36,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34544 states. [2020-10-13 14:44:36,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34544 states to 34544 states and 49704 transitions. [2020-10-13 14:44:36,385 INFO L78 Accepts]: Start accepts. Automaton has 34544 states and 49704 transitions. Word has length 71 [2020-10-13 14:44:36,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:44:36,385 INFO L479 AbstractCegarLoop]: Abstraction has 34544 states and 49704 transitions. [2020-10-13 14:44:36,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:44:36,386 INFO L276 IsEmpty]: Start isEmpty. Operand 34544 states and 49704 transitions. [2020-10-13 14:44:36,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-13 14:44:36,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:44:36,392 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] [2020-10-13 14:44:36,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 14:44:36,393 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:44:36,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:44:36,393 INFO L82 PathProgramCache]: Analyzing trace with hash -703433698, now seen corresponding path program 1 times [2020-10-13 14:44:36,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:44:36,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338981608] [2020-10-13 14:44:36,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:44:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:44:36,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:36,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:36,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:36,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:37,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:37,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:37,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:37,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:39,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:39,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:40,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:40,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:40,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:41,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:41,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:41,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:44:41,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 14:44:41,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-13 14:44:41,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 14:44:41,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:44:41,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:44:41,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 14:44:41,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 14:44:41,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:44:42,079 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:44:42,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:44:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:44:42,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:42,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:44:42,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:44:42,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:44:42,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 14:44:42,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:44:42,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:44:42,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:44:42,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:44:42,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:44:42,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:44:42,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338981608] [2020-10-13 14:44:42,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:44:42,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 14:44:42,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781301557] [2020-10-13 14:44:42,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:44:42,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:44:42,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:44:42,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:44:42,110 INFO L87 Difference]: Start difference. First operand 34544 states and 49704 transitions. Second operand 6 states. [2020-10-13 14:44:55,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:44:55,192 INFO L93 Difference]: Finished difference Result 178082 states and 257527 transitions. [2020-10-13 14:44:55,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 14:44:55,193 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 71 [2020-10-13 14:44:55,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:44:55,381 INFO L225 Difference]: With dead ends: 178082 [2020-10-13 14:44:55,381 INFO L226 Difference]: Without dead ends: 147323 [2020-10-13 14:44:55,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-13 14:44:55,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147323 states. [2020-10-13 14:44:58,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147323 to 33917. [2020-10-13 14:44:58,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33917 states. [2020-10-13 14:44:58,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33917 states to 33917 states and 48689 transitions. [2020-10-13 14:44:58,527 INFO L78 Accepts]: Start accepts. Automaton has 33917 states and 48689 transitions. Word has length 71 [2020-10-13 14:44:58,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:44:58,528 INFO L479 AbstractCegarLoop]: Abstraction has 33917 states and 48689 transitions. [2020-10-13 14:44:58,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:44:58,528 INFO L276 IsEmpty]: Start isEmpty. Operand 33917 states and 48689 transitions. [2020-10-13 14:44:58,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-13 14:44:58,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:44:58,534 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] [2020-10-13 14:44:58,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 14:44:58,535 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:44:58,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:44:58,535 INFO L82 PathProgramCache]: Analyzing trace with hash 416567454, now seen corresponding path program 1 times [2020-10-13 14:44:58,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:44:58,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464533625] [2020-10-13 14:44:58,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:44:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:44:58,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:58,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:58,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:59,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:59,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:59,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:59,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:59,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:59,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:59,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:44:59,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:00,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:00,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:00,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:02,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:02,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:02,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:02,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:02,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:02,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:02,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:03,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:03,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:03,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:45:03,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 14:45:03,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 23 [2020-10-13 14:45:03,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 14:45:03,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:45:03,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:45:03,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 14:45:03,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 14:45:03,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:45:04,243 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:45:04,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:45:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:45:04,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:04,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:45:04,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:45:04,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:45:04,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 14:45:04,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:45:04,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:45:04,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:45:04,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:45:04,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:45:04,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:45:04,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464533625] [2020-10-13 14:45:04,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:45:04,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:45:04,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686253371] [2020-10-13 14:45:04,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:45:04,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:45:04,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:45:04,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:45:04,287 INFO L87 Difference]: Start difference. First operand 33917 states and 48689 transitions. Second operand 7 states. [2020-10-13 14:45:05,011 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-13 14:45:18,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:45:18,398 INFO L93 Difference]: Finished difference Result 152018 states and 220178 transitions. [2020-10-13 14:45:18,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:45:18,399 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-10-13 14:45:18,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:45:18,543 INFO L225 Difference]: With dead ends: 152018 [2020-10-13 14:45:18,544 INFO L226 Difference]: Without dead ends: 123540 [2020-10-13 14:45:18,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:45:18,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123540 states. [2020-10-13 14:45:21,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123540 to 36609. [2020-10-13 14:45:21,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36609 states. [2020-10-13 14:45:21,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36609 states to 36609 states and 52688 transitions. [2020-10-13 14:45:21,876 INFO L78 Accepts]: Start accepts. Automaton has 36609 states and 52688 transitions. Word has length 71 [2020-10-13 14:45:21,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:45:21,876 INFO L479 AbstractCegarLoop]: Abstraction has 36609 states and 52688 transitions. [2020-10-13 14:45:21,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:45:21,876 INFO L276 IsEmpty]: Start isEmpty. Operand 36609 states and 52688 transitions. [2020-10-13 14:45:21,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-13 14:45:21,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:45:21,883 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] [2020-10-13 14:45:21,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 14:45:21,883 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:45:21,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:45:21,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1253349153, now seen corresponding path program 1 times [2020-10-13 14:45:21,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:45:21,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199789160] [2020-10-13 14:45:21,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:45:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:45:21,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:21,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:21,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:22,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:22,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:22,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:22,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:23,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:23,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:23,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:23,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:24,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:25,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:26,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:45:26,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 14:45:26,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:45:26,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 14:45:26,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:45:26,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 14:45:26,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 14:45:26,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 14:45:26,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:45:27,683 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:45:27,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:45:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:45:27,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:27,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:45:27,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:45:27,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:45:27,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 14:45:27,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:45:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:45:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:45:27,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:45:27,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:45:27,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:45:27,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199789160] [2020-10-13 14:45:27,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:45:27,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 14:45:27,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784254835] [2020-10-13 14:45:27,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 14:45:27,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:45:27,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 14:45:27,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-13 14:45:27,728 INFO L87 Difference]: Start difference. First operand 36609 states and 52688 transitions. Second operand 10 states. [2020-10-13 14:45:28,458 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2020-10-13 14:45:43,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:45:43,840 INFO L93 Difference]: Finished difference Result 170316 states and 245770 transitions. [2020-10-13 14:45:43,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 14:45:43,840 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2020-10-13 14:45:43,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:45:44,031 INFO L225 Difference]: With dead ends: 170316 [2020-10-13 14:45:44,031 INFO L226 Difference]: Without dead ends: 138303 [2020-10-13 14:45:44,072 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2020-10-13 14:45:44,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138303 states. [2020-10-13 14:45:47,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138303 to 36420. [2020-10-13 14:45:47,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36420 states. [2020-10-13 14:45:47,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36420 states to 36420 states and 52287 transitions. [2020-10-13 14:45:47,993 INFO L78 Accepts]: Start accepts. Automaton has 36420 states and 52287 transitions. Word has length 72 [2020-10-13 14:45:47,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:45:47,993 INFO L479 AbstractCegarLoop]: Abstraction has 36420 states and 52287 transitions. [2020-10-13 14:45:47,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 14:45:47,994 INFO L276 IsEmpty]: Start isEmpty. Operand 36420 states and 52287 transitions. [2020-10-13 14:45:48,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-13 14:45:48,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:45:48,000 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] [2020-10-13 14:45:48,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 14:45:48,000 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:45:48,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:45:48,001 INFO L82 PathProgramCache]: Analyzing trace with hash 269665099, now seen corresponding path program 1 times [2020-10-13 14:45:48,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:45:48,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1676157707] [2020-10-13 14:45:48,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:45:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:45:48,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:48,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:49,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:49,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:49,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:49,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:50,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:50,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:50,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:50,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:50,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:51,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:51,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:52,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:45:53,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:45:53,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 14:45:53,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-13 14:45:53,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 14:45:53,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:45:53,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:45:53,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:45:53,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 14:45:53,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0