/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 SingleStatement --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=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_o1000.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:34:40,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:34:40,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:34:40,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:34:40,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:34:40,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:34:40,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:34:40,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:34:40,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:34:40,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:34:40,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:34:40,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:34:40,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:34:40,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:34:40,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:34:40,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:34:40,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:34:40,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:34:40,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:34:40,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:34:40,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:34:40,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:34:40,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:34:40,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:34:40,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:34:40,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:34:40,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:34:40,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:34:40,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:34:40,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:34:40,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:34:40,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:34:40,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:34:40,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:34:40,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:34:40,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:34:40,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:34:40,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:34:40,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:34:40,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:34:40,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:34:40,817 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 [2020-09-24 21:34:40,858 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:34:40,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:34:40,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:34:40,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:34:40,861 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:34:40,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:34:40,862 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:34:40,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:34:40,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:34:40,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:34:40,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:34:40,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:34:40,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:34:40,864 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:34:40,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:34:40,865 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:34:40,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:34:40,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:34:40,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:34:40,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:34:40,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:34:40,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:34:40,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:34:40,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:34:40,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:34:40,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:34:40,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:34:40,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:34:40,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:34:40,868 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 -> SingleStatement 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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:34:41,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:34:41,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:34:41,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:34:41,318 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:34:41,318 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:34:41,319 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o1000.c [2020-09-24 21:34:41,410 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e9a10b8f/ef997e57c9414aff84c07684b23f9b16/FLAG2507f5f30 [2020-09-24 21:34:41,929 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:34:41,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o1000.c [2020-09-24 21:34:41,938 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e9a10b8f/ef997e57c9414aff84c07684b23f9b16/FLAG2507f5f30 [2020-09-24 21:34:42,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e9a10b8f/ef997e57c9414aff84c07684b23f9b16 [2020-09-24 21:34:42,278 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:34:42,284 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:34:42,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:34:42,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:34:42,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:34:42,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:34:42" (1/1) ... [2020-09-24 21:34:42,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f8a488b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:34:42, skipping insertion in model container [2020-09-24 21:34:42,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:34:42" (1/1) ... [2020-09-24 21:34:42,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:34:42,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:34:42,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:34:42,540 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:34:42,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:34:42,569 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:34:42,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:34:42 WrapperNode [2020-09-24 21:34:42,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:34:42,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:34:42,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:34:42,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:34:42,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:34:42" (1/1) ... [2020-09-24 21:34:42,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:34:42" (1/1) ... [2020-09-24 21:34:42,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:34:42" (1/1) ... [2020-09-24 21:34:42,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:34:42" (1/1) ... [2020-09-24 21:34:42,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:34:42" (1/1) ... [2020-09-24 21:34:42,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:34:42" (1/1) ... [2020-09-24 21:34:42,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:34:42" (1/1) ... [2020-09-24 21:34:42,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:34:42,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:34:42,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:34:42,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:34:42,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:34:42" (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 [2020-09-24 21:34:42,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:34:42,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:34:42,755 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-24 21:34:42,756 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:34:42,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 21:34:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:34:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-24 21:34:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:34:42,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:34:42,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:34:42,932 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:34:42,932 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 21:34:42,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:34:42 BoogieIcfgContainer [2020-09-24 21:34:42,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:34:42,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:34:42,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:34:42,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:34:42,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:34:42" (1/3) ... [2020-09-24 21:34:42,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8e2eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:34:42, skipping insertion in model container [2020-09-24 21:34:42,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:34:42" (2/3) ... [2020-09-24 21:34:42,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8e2eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:34:42, skipping insertion in model container [2020-09-24 21:34:42,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:34:42" (3/3) ... [2020-09-24 21:34:42,945 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o1000.c [2020-09-24 21:34:42,954 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:34:42,964 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:34:42,983 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:34:43,013 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:34:43,014 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:34:43,014 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:34:43,014 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:34:43,014 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:34:43,015 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:34:43,015 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:34:43,015 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:34:43,037 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-24 21:34:43,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 21:34:43,043 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:34:43,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:34:43,045 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:34:43,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:34:43,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1651991454, now seen corresponding path program 1 times [2020-09-24 21:34:43,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:34:43,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456013845] [2020-09-24 21:34:43,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:34:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:43,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:43,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:43,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 21:34:43,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:43,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 21:34:43,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:34:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 21:34:43,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:34:43,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:34:43,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:34:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:43,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:43,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:43,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:34:43,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:43,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:34:43,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:43,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:34:43,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:43,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:34:43,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:43,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 21:34:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:43,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:43,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:43,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:34:43,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:43,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 21:34:43,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:43,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:34:43,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:43,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:34:43,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:34:43,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:34:43,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456013845] [2020-09-24 21:34:43,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:34:43,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:34:43,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662999679] [2020-09-24 21:34:43,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:34:43,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:34:43,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:34:43,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:34:43,517 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-09-24 21:34:43,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:34:43,596 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-24 21:34:43,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 21:34:43,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 21:34:43,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:34:43,611 INFO L225 Difference]: With dead ends: 37 [2020-09-24 21:34:43,612 INFO L226 Difference]: Without dead ends: 22 [2020-09-24 21:34:43,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:34:43,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-24 21:34:43,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-24 21:34:43,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-24 21:34:43,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-09-24 21:34:43,665 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2020-09-24 21:34:43,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:34:43,665 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-09-24 21:34:43,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:34:43,666 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-09-24 21:34:43,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-24 21:34:43,668 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:34:43,668 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:34:43,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:34:43,669 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:34:43,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:34:43,669 INFO L82 PathProgramCache]: Analyzing trace with hash 189324707, now seen corresponding path program 1 times [2020-09-24 21:34:43,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:34:43,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660929292] [2020-09-24 21:34:43,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:34:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:43,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:43,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:43,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 21:34:43,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:43,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-24 21:34:43,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:43,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:34:43,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 21:34:43,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 21:34:43,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:43,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:34:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:43,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:43,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:43,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:34:43,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:43,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:34:43,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:34:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:34:43,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:43,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 21:34:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:43,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:44,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:44,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:34:44,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:44,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-24 21:34:44,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:44,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:34:44,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:44,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:34:44,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:44,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:44,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:44,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:44,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:34:44,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:44,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 21:34:44,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:44,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:34:44,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:44,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:34:44,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:44,191 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 21:34:44,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660929292] [2020-09-24 21:34:44,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:34:44,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 21:34:44,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753452201] [2020-09-24 21:34:44,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:34:44,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:34:44,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:34:44,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:34:44,196 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 7 states. [2020-09-24 21:34:44,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:34:44,263 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-09-24 21:34:44,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 21:34:44,264 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-24 21:34:44,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:34:44,266 INFO L225 Difference]: With dead ends: 31 [2020-09-24 21:34:44,266 INFO L226 Difference]: Without dead ends: 26 [2020-09-24 21:34:44,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:34:44,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-24 21:34:44,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-24 21:34:44,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-24 21:34:44,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-24 21:34:44,275 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 23 [2020-09-24 21:34:44,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:34:44,275 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-24 21:34:44,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:34:44,276 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-24 21:34:44,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 21:34:44,277 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:34:44,277 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:34:44,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:34:44,278 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:34:44,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:34:44,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1416732684, now seen corresponding path program 2 times [2020-09-24 21:34:44,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:34:44,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263091359] [2020-09-24 21:34:44,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:34:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:44,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:44,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:44,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 21:34:44,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:44,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-09-24 21:34:44,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:44,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:34:44,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 21:34:44,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:34:44,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:44,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:34:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:44,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:44,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:44,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:34:44,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:44,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:34:44,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:44,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:34:44,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:44,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:34:44,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:44,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 21:34:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:44,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:44,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:44,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:34:44,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:44,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 21:34:44,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:44,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:34:44,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:44,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 21:34:44,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:44,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:44,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:44,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:44,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:34:44,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:44,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 21:34:44,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:44,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:34:44,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:44,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:34:44,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:44,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:44,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:44,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:44,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:34:44,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:44,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:34:44,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:44,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:34:44,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:44,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:34:44,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:44,830 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 21:34:44,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263091359] [2020-09-24 21:34:44,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:34:44,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 21:34:44,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530666474] [2020-09-24 21:34:44,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:34:44,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:34:44,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:34:44,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:34:44,833 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2020-09-24 21:34:44,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:34:44,928 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-09-24 21:34:44,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 21:34:44,929 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-09-24 21:34:44,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:34:44,930 INFO L225 Difference]: With dead ends: 35 [2020-09-24 21:34:44,931 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 21:34:44,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:34:44,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 21:34:44,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-24 21:34:44,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-24 21:34:44,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-24 21:34:44,938 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 30 [2020-09-24 21:34:44,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:34:44,938 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-24 21:34:44,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:34:44,939 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-24 21:34:44,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-24 21:34:44,940 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:34:44,940 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:34:44,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:34:44,940 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:34:44,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:34:44,941 INFO L82 PathProgramCache]: Analyzing trace with hash -209476043, now seen corresponding path program 3 times [2020-09-24 21:34:44,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:34:44,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1054062530] [2020-09-24 21:34:44,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:34:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:44,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:45,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:45,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 21:34:45,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:45,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-24 21:34:45,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:45,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:34:45,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 21:34:45,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:34:45,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:45,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:34:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:45,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:45,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:45,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:34:45,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:45,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:34:45,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:45,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:34:45,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:45,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:34:45,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:45,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 21:34:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:45,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:45,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:45,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 21:34:45,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:45,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-24 21:34:45,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:45,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:34:45,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:45,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 21:34:45,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:45,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:45,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:45,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:45,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:34:45,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:45,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 21:34:45,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:34:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 21:34:45,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:45,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:45,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:45,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:45,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:34:45,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:45,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 21:34:45,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:34:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:34:45,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:45,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:45,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:45,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:45,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:34:45,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:45,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 21:34:45,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:45,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:34:45,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:45,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:34:45,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:45,764 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 21:34:45,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1054062530] [2020-09-24 21:34:45,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:34:45,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 21:34:45,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132787704] [2020-09-24 21:34:45,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:34:45,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:34:45,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:34:45,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:34:45,767 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 11 states. [2020-09-24 21:34:45,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:34:45,897 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-24 21:34:45,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:34:45,897 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-09-24 21:34:45,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:34:45,899 INFO L225 Difference]: With dead ends: 39 [2020-09-24 21:34:45,899 INFO L226 Difference]: Without dead ends: 34 [2020-09-24 21:34:45,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-09-24 21:34:45,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-24 21:34:45,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-09-24 21:34:45,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-24 21:34:45,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-09-24 21:34:45,907 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 37 [2020-09-24 21:34:45,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:34:45,908 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-09-24 21:34:45,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:34:45,908 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-09-24 21:34:45,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-24 21:34:45,909 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:34:45,909 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:34:45,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:34:45,910 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:34:45,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:34:45,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1007399302, now seen corresponding path program 4 times [2020-09-24 21:34:45,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:34:45,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453729069] [2020-09-24 21:34:45,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:34:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:45,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:46,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:46,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 21:34:46,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:46,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-09-24 21:34:46,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:46,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:34:46,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-24 21:34:46,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:34:46,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:46,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:34:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:46,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:46,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:46,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:34:46,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:46,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:34:46,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:46,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:34:46,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:46,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:34:46,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:46,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 21:34:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:46,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:46,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:46,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 21:34:46,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:46,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-09-24 21:34:46,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 21:34:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 21:34:46,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:46,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:46,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:46,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:46,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 21:34:46,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:46,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-24 21:34:46,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:46,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:34:46,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:46,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 21:34:46,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:46,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:46,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:46,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:46,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:34:46,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:46,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 21:34:46,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:46,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:34:46,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:46,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 21:34:46,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:46,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:46,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:46,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:46,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:34:46,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:46,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 21:34:46,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:46,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:34:46,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:46,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:34:46,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:46,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:46,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:46,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:46,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:34:46,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:46,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 21:34:46,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:34:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:34:46,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:47,027 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-24 21:34:47,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453729069] [2020-09-24 21:34:47,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:34:47,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 21:34:47,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334816978] [2020-09-24 21:34:47,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 21:34:47,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:34:47,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 21:34:47,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-09-24 21:34:47,029 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 13 states. [2020-09-24 21:34:47,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:34:47,204 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-09-24 21:34:47,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 21:34:47,205 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-09-24 21:34:47,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:34:47,207 INFO L225 Difference]: With dead ends: 43 [2020-09-24 21:34:47,207 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 21:34:47,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-09-24 21:34:47,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 21:34:47,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-24 21:34:47,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-24 21:34:47,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-24 21:34:47,215 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 44 [2020-09-24 21:34:47,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:34:47,215 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-24 21:34:47,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 21:34:47,215 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-24 21:34:47,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 21:34:47,216 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:34:47,217 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:34:47,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 21:34:47,217 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:34:47,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:34:47,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1787659065, now seen corresponding path program 5 times [2020-09-24 21:34:47,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:34:47,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790033652] [2020-09-24 21:34:47,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:34:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:47,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:47,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:47,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 21:34:47,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:47,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-09-24 21:34:47,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:47,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 21:34:47,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-24 21:34:47,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 21:34:47,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:47,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:34:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:47,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:47,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:47,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:34:47,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:47,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:34:47,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:47,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:34:47,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:47,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:34:47,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:47,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 21:34:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:47,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:47,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:47,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 21:34:47,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:47,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-09-24 21:34:47,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 21:34:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 21:34:47,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:48,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:48,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:48,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:48,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 21:34:48,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:48,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-24 21:34:48,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:48,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 21:34:48,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:48,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 21:34:48,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:48,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:48,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:48,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:48,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 21:34:48,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:48,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-24 21:34:48,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:48,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:34:48,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:48,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 21:34:48,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:48,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:48,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:48,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:48,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:34:48,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:48,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 21:34:48,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:48,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:34:48,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:48,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 21:34:48,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:48,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:48,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:48,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:48,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:34:48,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:48,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 21:34:48,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:48,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:34:48,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:48,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:34:48,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:48,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:48,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:48,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:48,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:34:48,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:48,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:34:48,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:48,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:34:48,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:48,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:34:48,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:48,774 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-24 21:34:48,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [790033652] [2020-09-24 21:34:48,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:34:48,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 21:34:48,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948027579] [2020-09-24 21:34:48,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 21:34:48,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:34:48,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 21:34:48,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-09-24 21:34:48,777 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 15 states. [2020-09-24 21:34:49,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:34:49,003 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-24 21:34:49,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 21:34:49,004 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2020-09-24 21:34:49,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:34:49,005 INFO L225 Difference]: With dead ends: 47 [2020-09-24 21:34:49,006 INFO L226 Difference]: Without dead ends: 42 [2020-09-24 21:34:49,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2020-09-24 21:34:49,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-24 21:34:49,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-24 21:34:49,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 21:34:49,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-09-24 21:34:49,013 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 51 [2020-09-24 21:34:49,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:34:49,013 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-09-24 21:34:49,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 21:34:49,014 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-09-24 21:34:49,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-24 21:34:49,015 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:34:49,015 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:34:49,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 21:34:49,016 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:34:49,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:34:49,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1360883432, now seen corresponding path program 6 times [2020-09-24 21:34:49,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:34:49,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [532943456] [2020-09-24 21:34:49,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:34:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:49,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:49,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:49,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 21:34:49,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:49,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 530 [2020-09-24 21:34:49,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:49,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:34:49,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-24 21:34:49,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 21:34:49,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:49,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:34:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:49,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:49,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:49,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:34:49,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:49,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:34:49,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:49,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:34:49,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:49,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:34:49,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:49,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 21:34:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:49,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:50,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:50,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 21:34:50,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:50,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-09-24 21:34:50,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:50,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 21:34:50,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:50,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 21:34:50,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:50,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:50,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:50,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:50,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 21:34:50,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:50,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-09-24 21:34:50,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:50,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 21:34:50,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:50,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 21:34:50,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:50,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:50,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:50,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:50,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 21:34:50,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:50,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-24 21:34:50,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:50,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 21:34:50,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:50,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 21:34:50,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:50,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:50,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:50,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:50,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 21:34:50,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:50,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-24 21:34:50,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:50,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:34:50,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:50,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 21:34:50,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:50,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:50,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:50,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:50,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:34:50,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:50,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-24 21:34:50,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:50,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:34:50,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:50,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 21:34:50,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:51,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:51,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:51,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:51,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:34:51,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:51,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 21:34:51,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:51,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:34:51,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:51,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:34:51,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:51,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:51,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:51,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:51,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:34:51,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:51,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:34:51,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:34:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:34:51,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:51,178 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-09-24 21:34:51,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [532943456] [2020-09-24 21:34:51,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:34:51,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 21:34:51,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180180992] [2020-09-24 21:34:51,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 21:34:51,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:34:51,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 21:34:51,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:34:51,181 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 17 states. [2020-09-24 21:34:51,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:34:51,458 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-24 21:34:51,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 21:34:51,458 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2020-09-24 21:34:51,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:34:51,460 INFO L225 Difference]: With dead ends: 51 [2020-09-24 21:34:51,460 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 21:34:51,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2020-09-24 21:34:51,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 21:34:51,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-24 21:34:51,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-24 21:34:51,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-09-24 21:34:51,467 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 58 [2020-09-24 21:34:51,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:34:51,468 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-09-24 21:34:51,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 21:34:51,468 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-09-24 21:34:51,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-24 21:34:51,469 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:34:51,469 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:34:51,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 21:34:51,470 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:34:51,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:34:51,470 INFO L82 PathProgramCache]: Analyzing trace with hash -807968423, now seen corresponding path program 7 times [2020-09-24 21:34:51,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:34:51,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341273059] [2020-09-24 21:34:51,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:34:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:51,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:52,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:52,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-24 21:34:52,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:52,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 641 [2020-09-24 21:34:52,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:52,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 21:34:52,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-24 21:34:52,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 21:34:52,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:52,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:34:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:52,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:52,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:52,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:34:52,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:52,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:34:52,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:52,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:34:52,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:52,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:34:52,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:52,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 21:34:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:52,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:52,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:52,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 21:34:52,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:52,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-09-24 21:34:52,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:52,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 21:34:52,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:52,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 21:34:52,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:52,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:52,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:53,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:53,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 21:34:53,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:53,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 389 [2020-09-24 21:34:53,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:53,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 21:34:53,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:53,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 21:34:53,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:53,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:53,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:53,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:53,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 21:34:53,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:53,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-09-24 21:34:53,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:53,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 21:34:53,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:53,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 21:34:53,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:53,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:53,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:53,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:53,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 21:34:53,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:53,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-24 21:34:53,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:53,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 21:34:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 21:34:53,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:53,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:53,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:53,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:53,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 21:34:53,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:53,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 21:34:53,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:53,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:34:53,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:53,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 21:34:53,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:53,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:53,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:54,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:54,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:34:54,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:54,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 21:34:54,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:54,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:34:54,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:54,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 21:34:54,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:54,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:54,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:54,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:54,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:34:54,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:54,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 21:34:54,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:54,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:34:54,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:54,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:34:54,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:54,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:54,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:54,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:54,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:34:54,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:54,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:34:54,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:54,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:34:54,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:54,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:34:54,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:54,260 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-09-24 21:34:54,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341273059] [2020-09-24 21:34:54,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:34:54,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 21:34:54,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776311610] [2020-09-24 21:34:54,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 21:34:54,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:34:54,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 21:34:54,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:34:54,262 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 19 states. [2020-09-24 21:34:54,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:34:54,592 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-09-24 21:34:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-24 21:34:54,592 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 65 [2020-09-24 21:34:54,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:34:54,594 INFO L225 Difference]: With dead ends: 55 [2020-09-24 21:34:54,594 INFO L226 Difference]: Without dead ends: 50 [2020-09-24 21:34:54,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2020-09-24 21:34:54,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-24 21:34:54,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-24 21:34:54,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-24 21:34:54,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-24 21:34:54,608 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 65 [2020-09-24 21:34:54,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:34:54,609 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-24 21:34:54,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 21:34:54,610 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-24 21:34:54,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 21:34:54,612 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:34:54,612 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:34:54,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 21:34:54,613 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:34:54,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:34:54,614 INFO L82 PathProgramCache]: Analyzing trace with hash -705364310, now seen corresponding path program 8 times [2020-09-24 21:34:54,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:34:54,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [84062528] [2020-09-24 21:34:54,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:34:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:54,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:55,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:55,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-24 21:34:55,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:55,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 752 [2020-09-24 21:34:55,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 21:34:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-24 21:34:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 21:34:55,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:55,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:34:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:55,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:55,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:55,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:34:55,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:55,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:34:55,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:55,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:34:55,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:55,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:34:55,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:55,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 21:34:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:55,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:56,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:56,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 21:34:56,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:56,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 660 [2020-09-24 21:34:56,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:56,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 21:34:56,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:56,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 21:34:56,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:56,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:56,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:56,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:56,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 21:34:56,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:56,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-09-24 21:34:56,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:56,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 21:34:56,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:56,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 21:34:56,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:56,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:56,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:57,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:57,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 21:34:57,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:57,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-09-24 21:34:57,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:57,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 21:34:57,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:57,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 21:34:57,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:57,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:57,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:57,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:57,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 21:34:57,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:57,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-24 21:34:57,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:57,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 21:34:57,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:57,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 21:34:57,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:57,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:57,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:57,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:57,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 21:34:57,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:57,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-24 21:34:57,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:57,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 21:34:57,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:57,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 21:34:57,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:57,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:57,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:57,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:57,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 21:34:57,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:57,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 21:34:57,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:57,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:34:57,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:57,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 21:34:57,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:57,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:57,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:57,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:57,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:34:57,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:57,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 21:34:57,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:57,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:34:57,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:57,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 21:34:57,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:57,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:57,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:57,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:57,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:34:57,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:57,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 21:34:57,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:57,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:34:57,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:57,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:34:57,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:57,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:34:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:57,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:57,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:58,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:34:58,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:58,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:34:58,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:58,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:34:58,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:58,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:34:58,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:58,068 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-24 21:34:58,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [84062528] [2020-09-24 21:34:58,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:34:58,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-24 21:34:58,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916394974] [2020-09-24 21:34:58,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-24 21:34:58,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:34:58,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-24 21:34:58,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-09-24 21:34:58,071 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 21 states. [2020-09-24 21:34:58,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:34:58,522 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-24 21:34:58,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-24 21:34:58,522 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-09-24 21:34:58,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:34:58,524 INFO L225 Difference]: With dead ends: 59 [2020-09-24 21:34:58,525 INFO L226 Difference]: Without dead ends: 54 [2020-09-24 21:34:58,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2020-09-24 21:34:58,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-24 21:34:58,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-24 21:34:58,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 21:34:58,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-09-24 21:34:58,533 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 72 [2020-09-24 21:34:58,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:34:58,533 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-09-24 21:34:58,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-24 21:34:58,533 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-09-24 21:34:58,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-24 21:34:58,535 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:34:58,535 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:34:58,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 21:34:58,535 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:34:58,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:34:58,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1418439701, now seen corresponding path program 9 times [2020-09-24 21:34:58,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:34:58,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1647290542] [2020-09-24 21:34:58,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:34:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:58,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:59,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:59,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-24 21:34:59,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:59,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 818 [2020-09-24 21:34:59,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:59,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 21:34:59,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-24 21:34:59,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 21:34:59,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:59,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:34:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:59,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:59,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:59,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:34:59,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:59,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:34:59,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:59,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:34:59,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:59,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:34:59,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:59,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 21:34:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:59,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:00,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:00,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 21:35:00,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:00,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 718 [2020-09-24 21:35:00,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:00,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 21:35:00,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:00,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 21:35:00,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:00,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:00,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:00,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:00,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 21:35:00,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:00,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 558 [2020-09-24 21:35:00,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:00,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 21:35:00,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:00,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 21:35:00,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:35:00,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:00,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:01,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:01,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 21:35:01,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:01,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-09-24 21:35:01,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:01,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 21:35:01,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:01,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 21:35:01,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:01,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:01,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:01,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:01,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 21:35:01,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:01,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 332 [2020-09-24 21:35:01,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:01,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 21:35:01,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:01,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 21:35:01,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:01,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:01,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:01,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:02,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:02,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 21:35:02,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:02,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-24 21:35:02,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:02,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 21:35:02,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:02,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 21:35:02,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:35:02,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:02,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:02,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:02,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 21:35:02,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:02,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-09-24 21:35:02,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:02,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 21:35:02,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:02,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 21:35:02,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:35:02,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:02,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:02,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:02,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 21:35:02,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:02,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 21:35:02,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:02,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:35:02,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:02,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 21:35:02,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:35:02,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:02,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:02,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:02,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:35:02,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:02,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 21:35:02,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:02,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:35:02,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:02,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 21:35:02,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:35:02,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:02,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:02,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:02,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:35:02,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:02,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 21:35:02,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:02,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:35:02,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:02,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:35:02,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:02,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:02,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:02,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:02,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:35:02,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:02,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 21:35:02,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:02,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:35:02,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:02,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:35:02,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:35:02,825 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-09-24 21:35:02,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1647290542] [2020-09-24 21:35:02,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:35:02,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-24 21:35:02,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289641569] [2020-09-24 21:35:02,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-24 21:35:02,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:35:02,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-24 21:35:02,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-09-24 21:35:02,829 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 23 states. [2020-09-24 21:35:03,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:35:03,380 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2020-09-24 21:35:03,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-24 21:35:03,380 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 79 [2020-09-24 21:35:03,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:35:03,381 INFO L225 Difference]: With dead ends: 63 [2020-09-24 21:35:03,381 INFO L226 Difference]: Without dead ends: 58 [2020-09-24 21:35:03,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=973, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 21:35:03,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-24 21:35:03,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-24 21:35:03,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-24 21:35:03,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-24 21:35:03,389 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 79 [2020-09-24 21:35:03,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:35:03,390 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-24 21:35:03,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-24 21:35:03,390 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-24 21:35:03,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 21:35:03,391 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:35:03,392 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:35:03,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 21:35:03,392 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:35:03,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:35:03,392 INFO L82 PathProgramCache]: Analyzing trace with hash -182126020, now seen corresponding path program 10 times [2020-09-24 21:35:03,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:35:03,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1199731146] [2020-09-24 21:35:03,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:35:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:03,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:04,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:04,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-24 21:35:04,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:04,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 989 [2020-09-24 21:35:04,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:04,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 21:35:04,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-24 21:35:04,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 21:35:04,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:04,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:35:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:04,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:04,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:04,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:35:04,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:04,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:35:04,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:04,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:35:04,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:04,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:35:04,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:04,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 21:35:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:04,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:05,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:05,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 21:35:05,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:05,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 769 [2020-09-24 21:35:05,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 21:35:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 21:35:05,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:05,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:05,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:05,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:05,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 21:35:05,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:05,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 668 [2020-09-24 21:35:05,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:05,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 21:35:05,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:05,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 21:35:05,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:05,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:06,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:06,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:06,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 21:35:06,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:06,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 491 [2020-09-24 21:35:06,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:06,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 21:35:06,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:06,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 21:35:06,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:06,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:06,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:06,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:06,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 21:35:06,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:06,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-09-24 21:35:06,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:06,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 21:35:06,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:06,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 21:35:06,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:35:07,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:07,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:07,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:07,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 21:35:07,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:07,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-24 21:35:07,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:07,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 21:35:07,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:07,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 21:35:07,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:07,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:07,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:07,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:07,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:07,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 21:35:07,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:07,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-24 21:35:07,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:07,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 21:35:07,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:07,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 21:35:07,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:07,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:07,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:07,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:07,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 21:35:07,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:07,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-24 21:35:07,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:07,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 21:35:07,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:07,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 21:35:07,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:07,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:07,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:07,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:07,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 21:35:07,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:07,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 21:35:07,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:07,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:35:07,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:07,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 21:35:07,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:07,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:07,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:08,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:08,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:35:08,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:08,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 21:35:08,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:08,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:35:08,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:08,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 21:35:08,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:08,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:08,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:08,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:08,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:35:08,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:08,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 21:35:08,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:35:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:35:08,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:08,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:08,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:08,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:08,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:35:08,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:08,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:35:08,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:08,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:35:08,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:08,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:35:08,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:08,294 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-09-24 21:35:08,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1199731146] [2020-09-24 21:35:08,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:35:08,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-24 21:35:08,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714390468] [2020-09-24 21:35:08,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-24 21:35:08,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:35:08,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-24 21:35:08,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-09-24 21:35:08,297 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 25 states. [2020-09-24 21:35:08,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:35:08,976 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-24 21:35:08,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-24 21:35:08,977 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2020-09-24 21:35:08,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:35:08,979 INFO L225 Difference]: With dead ends: 67 [2020-09-24 21:35:08,979 INFO L226 Difference]: Without dead ends: 62 [2020-09-24 21:35:08,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=91, Invalid=1169, Unknown=0, NotChecked=0, Total=1260 [2020-09-24 21:35:08,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-24 21:35:08,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-09-24 21:35:08,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-24 21:35:08,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-09-24 21:35:08,986 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 86 [2020-09-24 21:35:08,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:35:08,987 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-09-24 21:35:08,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-24 21:35:08,987 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-09-24 21:35:08,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-24 21:35:08,988 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:35:08,988 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:35:08,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 21:35:08,989 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:35:08,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:35:08,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1527469181, now seen corresponding path program 11 times [2020-09-24 21:35:08,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:35:08,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812943064] [2020-09-24 21:35:08,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:35:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:09,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:10,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:10,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-24 21:35:10,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:10,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 21:35:10,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:10,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 21:35:10,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-24 21:35:10,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 21:35:10,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:10,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:35:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:10,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:10,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:10,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:35:10,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:10,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:35:10,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:10,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:35:10,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:10,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:35:10,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:10,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 21:35:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:10,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:10,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:10,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 21:35:10,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:10,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 892 [2020-09-24 21:35:10,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:10,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 21:35:10,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:10,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 21:35:10,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:10,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:11,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:11,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:11,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 21:35:11,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:11,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 750 [2020-09-24 21:35:11,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:11,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 21:35:11,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:11,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 21:35:11,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:35:11,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:11,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:12,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:12,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 21:35:12,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:12,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 579 [2020-09-24 21:35:12,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:12,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 21:35:12,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:12,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 21:35:12,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:12,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:12,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:12,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:12,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 21:35:12,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:12,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 442 [2020-09-24 21:35:12,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:12,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 21:35:12,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:12,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 21:35:12,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:12,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:12,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:13,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:13,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 21:35:13,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:13,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-09-24 21:35:13,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:13,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 21:35:13,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:13,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 21:35:13,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:13,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:13,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:13,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:13,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 21:35:13,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:13,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-09-24 21:35:13,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:13,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 21:35:13,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:13,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 21:35:13,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:13,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:13,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:13,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:13,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 21:35:13,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:13,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-09-24 21:35:13,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:13,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 21:35:13,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:13,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 21:35:13,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:13,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:13,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:14,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:14,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 21:35:14,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:14,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 21:35:14,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:14,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 21:35:14,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:14,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 21:35:14,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:14,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:14,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:14,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:14,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 21:35:14,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:14,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 21:35:14,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:14,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:35:14,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:14,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 21:35:14,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:14,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:14,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:14,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:14,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:35:14,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:14,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 21:35:14,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:14,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:35:14,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:14,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 21:35:14,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:14,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:14,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:14,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:14,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:35:14,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:14,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 21:35:14,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:14,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:35:14,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:14,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:35:14,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:14,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:14,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:14,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:14,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:35:14,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:14,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:35:14,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:14,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:35:14,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:14,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:35:14,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:35:14,696 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-09-24 21:35:14,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [812943064] [2020-09-24 21:35:14,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:35:14,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-24 21:35:14,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338238674] [2020-09-24 21:35:14,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-24 21:35:14,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:35:14,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-24 21:35:14,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-09-24 21:35:14,699 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 27 states. [2020-09-24 21:35:15,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:35:15,508 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-24 21:35:15,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-24 21:35:15,508 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 93 [2020-09-24 21:35:15,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:35:15,510 INFO L225 Difference]: With dead ends: 71 [2020-09-24 21:35:15,510 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 21:35:15,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=1383, Unknown=0, NotChecked=0, Total=1482 [2020-09-24 21:35:15,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 21:35:15,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-24 21:35:15,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-24 21:35:15,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-24 21:35:15,519 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 93 [2020-09-24 21:35:15,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:35:15,519 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-24 21:35:15,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-24 21:35:15,519 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-24 21:35:15,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-09-24 21:35:15,521 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:35:15,521 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:35:15,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 21:35:15,521 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:35:15,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:35:15,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1034648626, now seen corresponding path program 12 times [2020-09-24 21:35:15,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:35:15,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630226262] [2020-09-24 21:35:15,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:35:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:15,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:16,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:16,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 21:35:16,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:16,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1375 [2020-09-24 21:35:16,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:16,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 21:35:16,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:35:16,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 21:35:16,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:16,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:35:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:16,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:16,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:16,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:35:16,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:16,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:35:16,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:16,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:35:16,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:16,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:35:16,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:16,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 21:35:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:17,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:18,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:18,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 21:35:18,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:18,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1066 [2020-09-24 21:35:18,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:18,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 21:35:18,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:18,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 21:35:18,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:18,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:18,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:19,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:19,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 21:35:19,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:19,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1219 [2020-09-24 21:35:19,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:19,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 21:35:19,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:19,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 21:35:19,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:19,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:19,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:20,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:20,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 21:35:20,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:20,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 739 [2020-09-24 21:35:20,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:20,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 21:35:20,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:20,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 21:35:20,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:20,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:20,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:20,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:20,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 21:35:20,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:20,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 588 [2020-09-24 21:35:20,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:20,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 21:35:20,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:20,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 21:35:20,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:20,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:20,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:21,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:21,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 21:35:21,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:21,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 465 [2020-09-24 21:35:21,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:21,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 21:35:21,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:21,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 21:35:21,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:21,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:21,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:21,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:21,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 21:35:21,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:21,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 432 [2020-09-24 21:35:21,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:21,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 21:35:21,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:21,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 21:35:21,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:21,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:21,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:22,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:22,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 21:35:22,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:22,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-24 21:35:22,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:22,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 21:35:22,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:22,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 21:35:22,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:22,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:22,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:22,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:22,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 21:35:22,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:22,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-24 21:35:22,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:22,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 21:35:22,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:22,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 21:35:22,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:22,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:22,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:22,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:22,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 21:35:22,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:22,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-24 21:35:22,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:22,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 21:35:22,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:22,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 21:35:22,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:22,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:22,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:22,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:22,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 21:35:22,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:22,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 21:35:22,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:22,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:35:22,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:22,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 21:35:22,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:35:22,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:22,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:22,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:22,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:35:22,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:22,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 21:35:22,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:22,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:35:22,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:22,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 21:35:22,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:22,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:22,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:23,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:23,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:35:23,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:23,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 21:35:23,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:23,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:35:23,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:23,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:35:23,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:35:23,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:23,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:23,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:23,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:35:23,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:23,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:35:23,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:23,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:35:23,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:23,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:35:23,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:23,215 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-09-24 21:35:23,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630226262] [2020-09-24 21:35:23,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:35:23,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-09-24 21:35:23,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494677249] [2020-09-24 21:35:23,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-24 21:35:23,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:35:23,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-24 21:35:23,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-09-24 21:35:23,218 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 29 states. [2020-09-24 21:35:24,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:35:24,102 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2020-09-24 21:35:24,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-24 21:35:24,103 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 100 [2020-09-24 21:35:24,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:35:24,104 INFO L225 Difference]: With dead ends: 75 [2020-09-24 21:35:24,104 INFO L226 Difference]: Without dead ends: 70 [2020-09-24 21:35:24,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=107, Invalid=1615, Unknown=0, NotChecked=0, Total=1722 [2020-09-24 21:35:24,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-24 21:35:24,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-24 21:35:24,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-24 21:35:24,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-24 21:35:24,111 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 100 [2020-09-24 21:35:24,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:35:24,112 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-24 21:35:24,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-24 21:35:24,112 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-24 21:35:24,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-24 21:35:24,113 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:35:24,113 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:35:24,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 21:35:24,114 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:35:24,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:35:24,114 INFO L82 PathProgramCache]: Analyzing trace with hash 996041487, now seen corresponding path program 13 times [2020-09-24 21:35:24,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:35:24,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047540835] [2020-09-24 21:35:24,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:35:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:24,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:25,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:25,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-24 21:35:25,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:25,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1461 [2020-09-24 21:35:25,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 21:35:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 21:35:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 21:35:25,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:35:25,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:35:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:25,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:25,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:25,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:35:25,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:25,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:35:25,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:25,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:35:25,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:25,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:35:25,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:25,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 21:35:25,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:25,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:26,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:26,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 21:35:26,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:26,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1298 [2020-09-24 21:35:26,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:26,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 21:35:26,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:26,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 21:35:26,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:27,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:27,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:28,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:28,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 21:35:28,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:28,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1086 [2020-09-24 21:35:28,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 21:35:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 21:35:28,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:28,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:28,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:29,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:29,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 21:35:29,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:29,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 884 [2020-09-24 21:35:29,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:29,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 21:35:29,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:29,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 21:35:29,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:29,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:29,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:29,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:29,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 21:35:29,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:29,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 736 [2020-09-24 21:35:29,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:29,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 21:35:29,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:29,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 21:35:29,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:29,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:29,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:30,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:30,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 21:35:30,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:30,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 575 [2020-09-24 21:35:30,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:30,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 21:35:30,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:30,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 21:35:30,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:30,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:30,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:31,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:31,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 21:35:31,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:31,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-09-24 21:35:31,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:31,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 21:35:31,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:31,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 21:35:31,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:31,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:31,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:31,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:31,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 21:35:31,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:31,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-09-24 21:35:31,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:31,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 21:35:31,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:31,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 21:35:31,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:31,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:31,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:31,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:31,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 21:35:31,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:31,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-24 21:35:31,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:31,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 21:35:31,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:31,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 21:35:31,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:31,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:31,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:32,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:32,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 21:35:32,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:32,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-09-24 21:35:32,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:32,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 21:35:32,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:32,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 21:35:32,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:32,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:32,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:32,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:32,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 21:35:32,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:32,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-24 21:35:32,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:32,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 21:35:32,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:32,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 21:35:32,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:32,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:32,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:32,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:32,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 21:35:32,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:32,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 21:35:32,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:32,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:35:32,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:32,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 21:35:32,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:35:32,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:32,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:32,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:32,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:35:32,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:32,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 21:35:32,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:32,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:35:32,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:32,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 21:35:32,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:32,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:32,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:32,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:32,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:35:32,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:32,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 21:35:32,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:32,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:35:32,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:32,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:35:32,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:32,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:32,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:32,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:32,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:32,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:35:32,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:32,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:35:32,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:32,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:35:32,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:32,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:35:32,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:32,831 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-09-24 21:35:32,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047540835] [2020-09-24 21:35:32,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:35:32,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-09-24 21:35:32,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190684364] [2020-09-24 21:35:32,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-09-24 21:35:32,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:35:32,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-09-24 21:35:32,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-09-24 21:35:32,834 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 31 states. [2020-09-24 21:35:33,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:35:33,851 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-24 21:35:33,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-09-24 21:35:33,851 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 107 [2020-09-24 21:35:33,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:35:33,852 INFO L225 Difference]: With dead ends: 79 [2020-09-24 21:35:33,852 INFO L226 Difference]: Without dead ends: 74 [2020-09-24 21:35:33,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=115, Invalid=1865, Unknown=0, NotChecked=0, Total=1980 [2020-09-24 21:35:33,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-24 21:35:33,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-24 21:35:33,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-24 21:35:33,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-09-24 21:35:33,860 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 107 [2020-09-24 21:35:33,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:35:33,860 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-09-24 21:35:33,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-09-24 21:35:33,860 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-09-24 21:35:33,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-24 21:35:33,861 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:35:33,862 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:35:33,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 21:35:33,862 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:35:33,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:35:33,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1701157728, now seen corresponding path program 14 times [2020-09-24 21:35:33,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:35:33,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [31741891] [2020-09-24 21:35:33,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:35:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:33,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:35,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:35,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 21:35:35,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:35,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1751 [2020-09-24 21:35:35,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:35,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-24 21:35:35,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-24 21:35:35,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 21:35:35,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:35,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:35:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:35,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:35,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:35,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:35:35,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:35,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:35:35,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:35,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:35:35,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:35,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:35:35,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:35,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 21:35:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:35,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:37,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:37,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-24 21:35:37,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:37,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1531 [2020-09-24 21:35:37,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:37,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 21:35:37,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:37,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-24 21:35:37,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:37,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:37,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:37,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:35:38,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:35:38,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 21:35:38,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:35:38,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1336 [2020-09-24 21:35:38,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:35:38,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 21:35:38,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:35:38,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 21:35:38,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:35:38,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:35:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:35:38,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking...