/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label31.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:30:21,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:30:21,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:30:21,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:30:21,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:30:21,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:30:21,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:30:21,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:30:21,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:30:21,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:30:21,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:30:21,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:30:21,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:30:21,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:30:21,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:30:21,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:30:21,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:30:21,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:30:21,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:30:21,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:30:21,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:30:21,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:30:21,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:30:21,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:30:21,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:30:21,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:30:21,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:30:21,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:30:21,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:30:21,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:30:21,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:30:21,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:30:21,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:30:21,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:30:21,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:30:21,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:30:21,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:30:21,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:30:21,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:30:21,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:30:21,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:30:21,577 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 14:30:21,599 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:30:21,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:30:21,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:30:21,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:30:21,602 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:30:21,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:30:21,602 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:30:21,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:30:21,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:30:21,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:30:21,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:30:21,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:30:21,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:30:21,603 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:30:21,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:30:21,604 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:30:21,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:30:21,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:30:21,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:30:21,604 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:30:21,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:30:21,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:30:21,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:30:21,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:30:21,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:30:21,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:30:21,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:30:21,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:30:21,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:30:21,606 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 14:30:21,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:30:21,963 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:30:21,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:30:21,968 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:30:21,969 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:30:21,970 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label31.c [2020-10-12 14:30:22,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3985ace44/06ba6e1bb6aa4c02a58495e9e8e018ce/FLAGad31fca09 [2020-10-12 14:30:22,713 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:30:22,714 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label31.c [2020-10-12 14:30:22,736 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3985ace44/06ba6e1bb6aa4c02a58495e9e8e018ce/FLAGad31fca09 [2020-10-12 14:30:22,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3985ace44/06ba6e1bb6aa4c02a58495e9e8e018ce [2020-10-12 14:30:22,937 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:30:22,939 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:30:22,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:30:22,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:30:22,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:30:22,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:30:22" (1/1) ... [2020-10-12 14:30:22,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a9c66bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:22, skipping insertion in model container [2020-10-12 14:30:22,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:30:22" (1/1) ... [2020-10-12 14:30:22,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:30:23,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:30:24,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:30:24,053 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:30:24,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:30:24,585 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:30:24,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:24 WrapperNode [2020-10-12 14:30:24,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:30:24,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:30:24,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:30:24,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:30:24,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:24" (1/1) ... [2020-10-12 14:30:24,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:24" (1/1) ... [2020-10-12 14:30:24,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:24" (1/1) ... [2020-10-12 14:30:24,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:24" (1/1) ... [2020-10-12 14:30:24,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:24" (1/1) ... [2020-10-12 14:30:24,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:24" (1/1) ... [2020-10-12 14:30:24,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:24" (1/1) ... [2020-10-12 14:30:24,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:30:24,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:30:24,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:30:24,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:30:24,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:24" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:30:24,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:30:24,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:30:24,859 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:30:24,859 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 14:30:24,859 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:30:24,859 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:30:24,859 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 14:30:24,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:30:24,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:30:24,860 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:30:24,860 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:30:24,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:30:24,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:30:27,088 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:30:27,088 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:30:27,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:30:27 BoogieIcfgContainer [2020-10-12 14:30:27,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:30:27,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:30:27,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:30:27,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:30:27,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:30:22" (1/3) ... [2020-10-12 14:30:27,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbcaea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:30:27, skipping insertion in model container [2020-10-12 14:30:27,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:24" (2/3) ... [2020-10-12 14:30:27,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbcaea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:30:27, skipping insertion in model container [2020-10-12 14:30:27,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:30:27" (3/3) ... [2020-10-12 14:30:27,109 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label31.c [2020-10-12 14:30:27,120 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:30:27,133 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:30:27,147 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:30:27,184 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:30:27,184 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:30:27,184 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:30:27,185 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:30:27,185 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:30:27,185 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:30:27,185 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:30:27,185 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:30:27,213 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-12 14:30:27,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-12 14:30:27,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:30:27,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:30:27,221 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:30:27,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:30:27,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1091509315, now seen corresponding path program 1 times [2020-10-12 14:30:27,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:30:27,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040482656] [2020-10-12 14:30:27,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:30:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:27,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:27,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:27,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:30:27,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:27,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-10-12 14:30:27,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:27,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:30:27,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:30:27,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 14:30:27,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-12 14:30:27,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:30:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:27,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:27,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:27,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:30:27,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:27,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:30:27,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:27,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:30:27,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:27,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:30:27,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:30:27,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:30:27,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040482656] [2020-10-12 14:30:27,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:30:27,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:30:27,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766161295] [2020-10-12 14:30:27,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:30:27,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:30:27,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:30:27,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:30:27,819 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-12 14:30:31,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:30:31,388 INFO L93 Difference]: Finished difference Result 1169 states and 2164 transitions. [2020-10-12 14:30:31,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:30:31,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-12 14:30:31,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:30:31,412 INFO L225 Difference]: With dead ends: 1169 [2020-10-12 14:30:31,413 INFO L226 Difference]: Without dead ends: 696 [2020-10-12 14:30:31,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:30:31,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-12 14:30:31,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 692. [2020-10-12 14:30:31,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-12 14:30:31,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2020-10-12 14:30:31,533 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 14 [2020-10-12 14:30:31,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:30:31,533 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2020-10-12 14:30:31,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:30:31,534 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2020-10-12 14:30:31,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-12 14:30:31,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:30:31,539 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:30:31,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:30:31,539 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:30:31,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:30:31,540 INFO L82 PathProgramCache]: Analyzing trace with hash 432956112, now seen corresponding path program 1 times [2020-10-12 14:30:31,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:30:31,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129818106] [2020-10-12 14:30:31,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:30:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:31,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:31,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:32,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:32,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 14:30:32,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:30:32,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 983 [2020-10-12 14:30:32,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:32,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:30:32,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:30:32,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 14:30:32,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:30:32,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:30:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:32,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:32,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:32,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:30:32,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:32,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:30:32,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:32,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:30:32,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:32,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:30:32,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 14:30:32,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:30:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:32,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:32,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:32,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:30:32,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:32,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-12 14:30:32,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:32,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:32,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:30:32,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 14:30:32,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:33,023 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:30:33,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129818106] [2020-10-12 14:30:33,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:30:33,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:30:33,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165230424] [2020-10-12 14:30:33,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:30:33,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:30:33,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:30:33,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:30:33,027 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand 7 states. [2020-10-12 14:30:36,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:30:36,773 INFO L93 Difference]: Finished difference Result 2079 states and 3076 transitions. [2020-10-12 14:30:36,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:30:36,775 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-12 14:30:36,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:30:36,788 INFO L225 Difference]: With dead ends: 2079 [2020-10-12 14:30:36,788 INFO L226 Difference]: Without dead ends: 1393 [2020-10-12 14:30:36,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:30:36,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2020-10-12 14:30:36,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1385. [2020-10-12 14:30:36,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1385 states. [2020-10-12 14:30:36,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 1821 transitions. [2020-10-12 14:30:36,887 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 1821 transitions. Word has length 90 [2020-10-12 14:30:36,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:30:36,889 INFO L479 AbstractCegarLoop]: Abstraction has 1385 states and 1821 transitions. [2020-10-12 14:30:36,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:30:36,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 1821 transitions. [2020-10-12 14:30:36,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-12 14:30:36,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:30:36,906 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:30:36,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:30:36,907 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:30:36,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:30:36,907 INFO L82 PathProgramCache]: Analyzing trace with hash 4022272, now seen corresponding path program 1 times [2020-10-12 14:30:36,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:30:36,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231436346] [2020-10-12 14:30:36,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:30:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:37,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:37,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:37,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:37,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:37,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:39,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:40,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:40,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 14:30:40,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:30:40,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3166 [2020-10-12 14:30:40,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:40,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 14:30:40,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:30:40,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-12 14:30:40,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:40,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:30:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:40,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:40,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:40,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:30:40,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:40,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:30:40,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:40,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:30:40,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:40,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:30:40,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 14:30:40,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:30:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:40,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:40,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:40,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:40,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:30:40,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:30:40,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-12 14:30:40,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:40,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:40,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:30:40,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 14:30:40,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:40,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:30:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:40,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:40,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:40,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:40,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:40,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 14:30:40,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:30:40,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-12 14:30:40,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:40,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:30:40,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:30:40,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 14:30:40,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:41,704 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 14:30:41,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231436346] [2020-10-12 14:30:41,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:30:41,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 14:30:41,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876554101] [2020-10-12 14:30:41,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 14:30:41,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:30:41,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 14:30:41,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:30:41,707 INFO L87 Difference]: Start difference. First operand 1385 states and 1821 transitions. Second operand 12 states. [2020-10-12 14:30:44,261 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2020-10-12 14:30:49,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:30:49,390 INFO L93 Difference]: Finished difference Result 3897 states and 5299 transitions. [2020-10-12 14:30:49,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 14:30:49,391 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 177 [2020-10-12 14:30:49,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:30:49,408 INFO L225 Difference]: With dead ends: 3897 [2020-10-12 14:30:49,409 INFO L226 Difference]: Without dead ends: 2518 [2020-10-12 14:30:49,414 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2020-10-12 14:30:49,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2518 states. [2020-10-12 14:30:49,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2518 to 2428. [2020-10-12 14:30:49,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2428 states. [2020-10-12 14:30:49,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 3225 transitions. [2020-10-12 14:30:49,514 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 3225 transitions. Word has length 177 [2020-10-12 14:30:49,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:30:49,516 INFO L479 AbstractCegarLoop]: Abstraction has 2428 states and 3225 transitions. [2020-10-12 14:30:49,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 14:30:49,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 3225 transitions. [2020-10-12 14:30:49,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-10-12 14:30:49,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:30:49,527 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:30:49,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:30:49,528 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:30:49,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:30:49,528 INFO L82 PathProgramCache]: Analyzing trace with hash -394703843, now seen corresponding path program 1 times [2020-10-12 14:30:49,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:30:49,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705274740] [2020-10-12 14:30:49,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:30:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:49,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:49,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:50,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:50,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:50,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:51,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:54,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:54,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 361 [2020-10-12 14:30:54,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:30:54,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 14:30:54,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:54,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 14:30:54,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:30:54,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 343 [2020-10-12 14:30:54,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:54,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:30:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:54,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:54,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:54,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:30:54,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:54,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:30:54,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:54,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:30:54,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:54,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:30:54,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:54,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:30:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:54,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:54,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:54,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:54,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:30:54,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:30:54,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-12 14:30:54,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:54,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:54,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:30:54,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 14:30:54,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:54,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:30:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:54,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:55,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:55,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:55,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 14:30:55,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:30:55,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-12 14:30:55,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:55,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:55,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:30:55,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-12 14:30:55,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:55,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 14:30:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:55,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:55,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:55,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 14:30:55,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:55,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-12 14:30:55,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:55,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:55,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:30:55,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-12 14:30:55,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:55,646 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 23 proven. 4 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2020-10-12 14:30:55,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705274740] [2020-10-12 14:30:55,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:30:55,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 14:30:55,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068434311] [2020-10-12 14:30:55,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:30:55,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:30:55,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:30:55,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:30:55,649 INFO L87 Difference]: Start difference. First operand 2428 states and 3225 transitions. Second operand 7 states. [2020-10-12 14:30:59,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:30:59,653 INFO L93 Difference]: Finished difference Result 5591 states and 7809 transitions. [2020-10-12 14:30:59,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:30:59,654 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 347 [2020-10-12 14:30:59,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:30:59,672 INFO L225 Difference]: With dead ends: 5591 [2020-10-12 14:30:59,672 INFO L226 Difference]: Without dead ends: 3169 [2020-10-12 14:30:59,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:30:59,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2020-10-12 14:30:59,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 3138. [2020-10-12 14:30:59,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3138 states. [2020-10-12 14:30:59,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 4219 transitions. [2020-10-12 14:30:59,760 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 4219 transitions. Word has length 347 [2020-10-12 14:30:59,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:30:59,761 INFO L479 AbstractCegarLoop]: Abstraction has 3138 states and 4219 transitions. [2020-10-12 14:30:59,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:30:59,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 4219 transitions. [2020-10-12 14:30:59,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2020-10-12 14:30:59,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:30:59,773 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:30:59,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:30:59,773 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:30:59,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:30:59,774 INFO L82 PathProgramCache]: Analyzing trace with hash -2102826699, now seen corresponding path program 1 times [2020-10-12 14:30:59,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:30:59,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761631355] [2020-10-12 14:30:59,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:30:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:59,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:59,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:00,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:01,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:01,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:01,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:04,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:04,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 478 [2020-10-12 14:31:04,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:31:04,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 14:31:04,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:31:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-12 14:31:04,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-12 14:31:04,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:31:04,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:31:04,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:04,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:04,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:04,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:31:04,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:04,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:31:04,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:04,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:04,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:04,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:04,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:04,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:31:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:05,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:05,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:05,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:31:05,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:05,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 14:31:05,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:05,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:31:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 14:31:05,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:05,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:31:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:05,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:05,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:05,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:05,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 14:31:05,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:31:05,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-12 14:31:05,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:05,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:31:05,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:31:05,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-12 14:31:05,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:05,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 14:31:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:05,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:05,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:05,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:31:05,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:05,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-12 14:31:05,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:31:05,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:31:05,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 14:31:05,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:05,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2020-10-12 14:31:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:05,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:05,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:05,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 14:31:05,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:05,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 14:31:05,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:05,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:05,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-12 14:31:05,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:05,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:06,158 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 212 proven. 210 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2020-10-12 14:31:06,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761631355] [2020-10-12 14:31:06,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:31:06,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:31:06,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291158490] [2020-10-12 14:31:06,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:31:06,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:31:06,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:31:06,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:31:06,162 INFO L87 Difference]: Start difference. First operand 3138 states and 4219 transitions. Second operand 8 states. [2020-10-12 14:31:11,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:31:11,873 INFO L93 Difference]: Finished difference Result 8400 states and 11361 transitions. [2020-10-12 14:31:11,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 14:31:11,874 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 462 [2020-10-12 14:31:11,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:31:11,894 INFO L225 Difference]: With dead ends: 8400 [2020-10-12 14:31:11,894 INFO L226 Difference]: Without dead ends: 4540 [2020-10-12 14:31:11,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-12 14:31:11,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4540 states. [2020-10-12 14:31:11,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4540 to 3836. [2020-10-12 14:31:11,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3836 states. [2020-10-12 14:31:12,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3836 states to 3836 states and 4250 transitions. [2020-10-12 14:31:12,008 INFO L78 Accepts]: Start accepts. Automaton has 3836 states and 4250 transitions. Word has length 462 [2020-10-12 14:31:12,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:31:12,008 INFO L479 AbstractCegarLoop]: Abstraction has 3836 states and 4250 transitions. [2020-10-12 14:31:12,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:31:12,009 INFO L276 IsEmpty]: Start isEmpty. Operand 3836 states and 4250 transitions. [2020-10-12 14:31:12,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2020-10-12 14:31:12,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:31:12,024 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:31:12,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:31:12,025 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:31:12,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:31:12,025 INFO L82 PathProgramCache]: Analyzing trace with hash -806282569, now seen corresponding path program 1 times [2020-10-12 14:31:12,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:31:12,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703203294] [2020-10-12 14:31:12,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:31:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:12,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:12,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:12,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:14,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:17,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:17,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 593 [2020-10-12 14:31:17,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:31:17,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 14:31:17,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:17,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:31:17,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:31:17,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:31:17,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:17,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:31:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:17,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:17,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:17,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:31:17,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:17,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:31:17,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:17,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:31:17,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:17,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:31:17,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:31:17,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:31:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:17,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:17,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:17,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:31:17,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:17,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-12 14:31:17,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:17,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:31:17,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:31:17,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-12 14:31:17,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:17,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 14:31:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:17,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:17,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:17,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:31:17,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:17,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 14:31:17,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:17,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:17,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-12 14:31:17,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:17,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:17,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-12 14:31:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:17,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:17,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:17,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:31:17,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:17,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:31:17,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:17,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:17,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:31:17,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:17,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:17,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-12 14:31:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:17,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:17,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:17,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:31:17,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:17,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 14:31:17,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:17,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:17,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:31:17,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:17,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:17,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-12 14:31:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:17,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:17,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:17,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 14:31:17,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:17,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:31:17,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:17,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:17,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-12 14:31:17,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:17,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:17,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 35 proven. 380 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked. [2020-10-12 14:31:17,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703203294] [2020-10-12 14:31:17,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:31:17,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:31:17,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702835426] [2020-10-12 14:31:17,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:31:17,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:31:17,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:31:17,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:31:17,965 INFO L87 Difference]: Start difference. First operand 3836 states and 4250 transitions. Second operand 7 states. [2020-10-12 14:31:23,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:31:23,252 INFO L93 Difference]: Finished difference Result 11454 states and 12863 transitions. [2020-10-12 14:31:23,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:31:23,253 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 575 [2020-10-12 14:31:23,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:31:23,280 INFO L225 Difference]: With dead ends: 11454 [2020-10-12 14:31:23,281 INFO L226 Difference]: Without dead ends: 7624 [2020-10-12 14:31:23,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:31:23,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7624 states. [2020-10-12 14:31:23,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7624 to 7612. [2020-10-12 14:31:23,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7612 states. [2020-10-12 14:31:23,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7612 states to 7612 states and 8462 transitions. [2020-10-12 14:31:23,462 INFO L78 Accepts]: Start accepts. Automaton has 7612 states and 8462 transitions. Word has length 575 [2020-10-12 14:31:23,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:31:23,463 INFO L479 AbstractCegarLoop]: Abstraction has 7612 states and 8462 transitions. [2020-10-12 14:31:23,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:31:23,463 INFO L276 IsEmpty]: Start isEmpty. Operand 7612 states and 8462 transitions. [2020-10-12 14:31:23,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2020-10-12 14:31:23,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:31:23,485 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:31:23,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:31:23,486 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:31:23,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:31:23,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1335806641, now seen corresponding path program 1 times [2020-10-12 14:31:23,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:31:23,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437613289] [2020-10-12 14:31:23,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:31:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:23,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:23,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:23,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:24,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:28,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:28,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 642 [2020-10-12 14:31:28,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:31:28,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-12 14:31:28,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:28,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 14:31:28,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:31:28,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-12 14:31:28,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:28,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:31:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:28,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:28,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:28,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:31:28,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:28,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:31:28,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:28,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:31:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:31:28,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:28,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:31:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:28,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:29,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:29,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:29,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:31:29,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:31:29,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 725 [2020-10-12 14:31:29,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:29,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:31:29,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:31:29,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 14:31:29,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:30,120 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2020-10-12 14:31:30,373 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-10-12 14:31:30,610 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-12 14:31:31,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-12 14:31:31,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:31,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:31,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:31,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:31:31,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:31,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:31:31,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:31,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:31,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:31:31,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:31,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:31,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-10-12 14:31:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:31,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:31,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:31,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:31:31,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:31,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:31:31,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:31,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:31,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:31:31,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:31,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:31,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2020-10-12 14:31:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:31,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:31,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:31,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-12 14:31:31,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:31,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 14:31:31,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:31,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:31,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-12 14:31:31,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:31,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:33,287 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 28 proven. 348 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2020-10-12 14:31:33,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437613289] [2020-10-12 14:31:33,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:31:33,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:31:33,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221860235] [2020-10-12 14:31:33,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:31:33,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:31:33,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:31:33,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:31:33,290 INFO L87 Difference]: Start difference. First operand 7612 states and 8462 transitions. Second operand 13 states. [2020-10-12 14:31:34,187 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2020-10-12 14:31:34,586 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2020-10-12 14:31:34,884 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 58 [2020-10-12 14:31:35,274 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2020-10-12 14:31:35,714 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-10-12 14:31:35,989 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 52 [2020-10-12 14:31:36,772 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-12 14:31:37,112 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-10-12 14:31:37,369 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-12 14:31:37,705 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-10-12 14:31:37,932 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2020-10-12 14:31:38,314 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-12 14:31:38,553 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 73 [2020-10-12 14:31:39,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:31:39,773 INFO L93 Difference]: Finished difference Result 15225 states and 16942 transitions. [2020-10-12 14:31:39,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 14:31:39,775 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 626 [2020-10-12 14:31:39,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:31:39,817 INFO L225 Difference]: With dead ends: 15225 [2020-10-12 14:31:39,818 INFO L226 Difference]: Without dead ends: 7527 [2020-10-12 14:31:39,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=254, Invalid=616, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:31:39,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7527 states. [2020-10-12 14:31:40,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7527 to 7519. [2020-10-12 14:31:40,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7519 states. [2020-10-12 14:31:40,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7519 states to 7519 states and 8366 transitions. [2020-10-12 14:31:40,017 INFO L78 Accepts]: Start accepts. Automaton has 7519 states and 8366 transitions. Word has length 626 [2020-10-12 14:31:40,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:31:40,018 INFO L479 AbstractCegarLoop]: Abstraction has 7519 states and 8366 transitions. [2020-10-12 14:31:40,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:31:40,018 INFO L276 IsEmpty]: Start isEmpty. Operand 7519 states and 8366 transitions. [2020-10-12 14:31:40,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2020-10-12 14:31:40,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:31:40,038 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:31:40,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:31:40,038 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:31:40,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:31:40,039 INFO L82 PathProgramCache]: Analyzing trace with hash -244852001, now seen corresponding path program 1 times [2020-10-12 14:31:40,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:31:40,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538638863] [2020-10-12 14:31:40,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:31:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:40,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:40,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:40,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:43,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:44,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:45,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:45,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 763 [2020-10-12 14:31:45,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:31:45,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 14:31:45,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:45,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:31:45,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 749 [2020-10-12 14:31:45,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 14:31:45,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:45,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:31:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:45,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:45,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:45,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:31:45,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:45,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:31:45,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:45,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:45,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:45,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:45,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:45,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:31:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:45,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:45,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:45,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:31:45,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:45,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 14:31:45,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:45,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:45,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:45,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:45,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:45,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:31:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:45,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:45,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:45,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:31:45,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:45,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:31:45,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:45,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:45,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:45,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:45,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:45,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-12 14:31:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:45,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:45,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:45,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:31:45,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:45,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:31:45,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:45,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:45,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:45,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:45,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:45,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2020-10-12 14:31:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:45,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:45,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:45,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:31:45,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:45,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:31:45,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:45,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:45,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:45,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:45,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:45,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-12 14:31:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:45,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:45,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:45,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-12 14:31:45,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:45,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 14:31:45,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:45,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:31:45,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:45,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-12 14:31:45,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:45,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1216 backedges. 42 proven. 5 refuted. 0 times theorem prover too weak. 1169 trivial. 0 not checked. [2020-10-12 14:31:45,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538638863] [2020-10-12 14:31:45,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:31:45,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:31:45,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379404788] [2020-10-12 14:31:45,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:31:45,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:31:45,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:31:45,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:31:45,858 INFO L87 Difference]: Start difference. First operand 7519 states and 8366 transitions. Second operand 5 states. [2020-10-12 14:31:48,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:31:48,340 INFO L93 Difference]: Finished difference Result 14788 states and 16479 transitions. [2020-10-12 14:31:48,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:31:48,345 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 745 [2020-10-12 14:31:48,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:31:48,365 INFO L225 Difference]: With dead ends: 14788 [2020-10-12 14:31:48,365 INFO L226 Difference]: Without dead ends: 7519 [2020-10-12 14:31:48,378 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:31:48,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7519 states. [2020-10-12 14:31:48,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7519 to 7519. [2020-10-12 14:31:48,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7519 states. [2020-10-12 14:31:48,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7519 states to 7519 states and 8246 transitions. [2020-10-12 14:31:48,527 INFO L78 Accepts]: Start accepts. Automaton has 7519 states and 8246 transitions. Word has length 745 [2020-10-12 14:31:48,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:31:48,529 INFO L479 AbstractCegarLoop]: Abstraction has 7519 states and 8246 transitions. [2020-10-12 14:31:48,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:31:48,529 INFO L276 IsEmpty]: Start isEmpty. Operand 7519 states and 8246 transitions. [2020-10-12 14:31:48,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2020-10-12 14:31:48,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:31:48,545 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:31:48,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:31:48,545 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:31:48,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:31:48,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1950209606, now seen corresponding path program 1 times [2020-10-12 14:31:48,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:31:48,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [959380428] [2020-10-12 14:31:48,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:31:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:48,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:48,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:49,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:50,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:53,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:53,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 817 [2020-10-12 14:31:53,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:31:53,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-12 14:31:53,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:53,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:31:53,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-12 14:31:53,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 14:31:53,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:53,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:31:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:53,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:53,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:53,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:31:53,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:53,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:31:53,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:53,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:53,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:31:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:53,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:53,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:53,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:31:53,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:53,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-12 14:31:53,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:53,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:31:53,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:53,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-12 14:31:53,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:53,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:31:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:54,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:54,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:54,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:31:54,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:54,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 14:31:54,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:54,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:31:54,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:31:54,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 14:31:54,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:54,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-12 14:31:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:54,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:54,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:54,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:31:54,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:54,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:31:54,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:54,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:54,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:31:54,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:54,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:54,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2020-10-12 14:31:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:54,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:54,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:54,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:31:54,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:54,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:31:54,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:54,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:54,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-12 14:31:54,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:54,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:54,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2020-10-12 14:31:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:54,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:54,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:54,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:31:54,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:54,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:31:54,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:54,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:54,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:31:54,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:54,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:54,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2020-10-12 14:31:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:54,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:54,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:54,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 14:31:54,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:54,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:31:54,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:54,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:54,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-12 14:31:54,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:54,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:54,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1574 backedges. 184 proven. 405 refuted. 0 times theorem prover too weak. 985 trivial. 0 not checked. [2020-10-12 14:31:54,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [959380428] [2020-10-12 14:31:54,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:31:54,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:31:54,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734208522] [2020-10-12 14:31:54,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:31:54,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:31:54,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:31:54,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:31:54,686 INFO L87 Difference]: Start difference. First operand 7519 states and 8246 transitions. Second operand 7 states. [2020-10-12 14:31:58,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:31:58,121 INFO L93 Difference]: Finished difference Result 16156 states and 17881 transitions. [2020-10-12 14:31:58,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 14:31:58,122 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 797 [2020-10-12 14:31:58,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:31:58,148 INFO L225 Difference]: With dead ends: 16156 [2020-10-12 14:31:58,148 INFO L226 Difference]: Without dead ends: 8887 [2020-10-12 14:31:58,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:31:58,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8887 states. [2020-10-12 14:31:58,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8887 to 8201. [2020-10-12 14:31:58,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8201 states. [2020-10-12 14:31:58,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8201 states to 8201 states and 8964 transitions. [2020-10-12 14:31:58,339 INFO L78 Accepts]: Start accepts. Automaton has 8201 states and 8964 transitions. Word has length 797 [2020-10-12 14:31:58,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:31:58,340 INFO L479 AbstractCegarLoop]: Abstraction has 8201 states and 8964 transitions. [2020-10-12 14:31:58,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:31:58,341 INFO L276 IsEmpty]: Start isEmpty. Operand 8201 states and 8964 transitions. [2020-10-12 14:31:58,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 906 [2020-10-12 14:31:58,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:31:58,361 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:31:58,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:31:58,361 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:31:58,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:31:58,362 INFO L82 PathProgramCache]: Analyzing trace with hash -703095923, now seen corresponding path program 1 times [2020-10-12 14:31:58,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:31:58,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349627101] [2020-10-12 14:31:58,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:31:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:58,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:58,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:58,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:00,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:03,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:03,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 927 [2020-10-12 14:32:03,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:32:03,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 14:32:03,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:03,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:03,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 359 [2020-10-12 14:32:03,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 14:32:03,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:03,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:32:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:03,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:03,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:03,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:32:03,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:03,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:32:03,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:03,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:03,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:03,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:03,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:03,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:32:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:03,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:03,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:03,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:32:03,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:03,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 14:32:03,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:03,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:03,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:03,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:03,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:03,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:32:03,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:03,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:03,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:03,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:32:03,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:03,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 14:32:03,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:03,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:32:03,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:03,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 14:32:03,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:03,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-12 14:32:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:03,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:03,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:03,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:32:03,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:03,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-12 14:32:03,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:03,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:03,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:32:03,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 14:32:03,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:04,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2020-10-12 14:32:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:04,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:04,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:04,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:32:04,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:04,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:32:04,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:04,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:04,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:32:04,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:04,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:04,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:32:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:04,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:04,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:04,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:32:04,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:04,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:32:04,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:04,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:04,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-12 14:32:04,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:04,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:04,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-12 14:32:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:04,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:04,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:04,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:32:04,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:04,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:32:04,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:04,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:04,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:32:04,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:04,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:04,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 792 [2020-10-12 14:32:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:04,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:04,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:04,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 14:32:04,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:04,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:32:04,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:04,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:04,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-12 14:32:04,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:04,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:04,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2164 backedges. 309 proven. 405 refuted. 0 times theorem prover too weak. 1450 trivial. 0 not checked. [2020-10-12 14:32:04,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349627101] [2020-10-12 14:32:04,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:32:04,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:32:04,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098365662] [2020-10-12 14:32:04,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:32:04,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:32:04,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:32:04,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:32:04,823 INFO L87 Difference]: Start difference. First operand 8201 states and 8964 transitions. Second operand 7 states. [2020-10-12 14:32:08,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:32:08,300 INFO L93 Difference]: Finished difference Result 17185 states and 18865 transitions. [2020-10-12 14:32:08,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:32:08,308 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 905 [2020-10-12 14:32:08,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:32:08,332 INFO L225 Difference]: With dead ends: 17185 [2020-10-12 14:32:08,332 INFO L226 Difference]: Without dead ends: 9234 [2020-10-12 14:32:08,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:32:08,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9234 states. [2020-10-12 14:32:08,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9234 to 9222. [2020-10-12 14:32:08,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9222 states. [2020-10-12 14:32:08,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9222 states to 9222 states and 10031 transitions. [2020-10-12 14:32:08,538 INFO L78 Accepts]: Start accepts. Automaton has 9222 states and 10031 transitions. Word has length 905 [2020-10-12 14:32:08,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:32:08,539 INFO L479 AbstractCegarLoop]: Abstraction has 9222 states and 10031 transitions. [2020-10-12 14:32:08,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:32:08,539 INFO L276 IsEmpty]: Start isEmpty. Operand 9222 states and 10031 transitions. [2020-10-12 14:32:08,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 926 [2020-10-12 14:32:08,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:32:08,560 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:32:08,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:32:08,561 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:32:08,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:32:08,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1874552730, now seen corresponding path program 1 times [2020-10-12 14:32:08,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:32:08,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536091991] [2020-10-12 14:32:08,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:32:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:08,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:09,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:09,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:09,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:13,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:13,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:13,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 945 [2020-10-12 14:32:13,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:32:13,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-12 14:32:13,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:13,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:32:13,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:32:13,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-12 14:32:13,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:13,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:32:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:13,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:13,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:13,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:32:13,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:13,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:32:13,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:32:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:13,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:32:13,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:13,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:32:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:14,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:14,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:14,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:14,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:32:14,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:32:14,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-12 14:32:14,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:14,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:14,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:32:14,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 248 [2020-10-12 14:32:14,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:14,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:32:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:14,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:14,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:14,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:32:14,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:14,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-12 14:32:14,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:32:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 14:32:14,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:14,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-12 14:32:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:14,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:14,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:14,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:32:14,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:14,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:32:14,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:14,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:14,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:32:14,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:14,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:14,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 619 [2020-10-12 14:32:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:14,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:14,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:14,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:32:14,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:14,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:32:14,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:14,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:14,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-12 14:32:14,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:14,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:14,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 702 [2020-10-12 14:32:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:14,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:15,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:15,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:32:15,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:15,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:32:15,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:15,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:15,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:32:15,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:15,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:15,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 812 [2020-10-12 14:32:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:15,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:15,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:15,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 14:32:15,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:15,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:32:15,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:15,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:15,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-12 14:32:15,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:15,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:15,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1692 backedges. 299 proven. 795 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2020-10-12 14:32:15,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536091991] [2020-10-12 14:32:15,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:32:15,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 14:32:15,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278915767] [2020-10-12 14:32:15,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 14:32:15,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:32:15,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 14:32:15,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:32:15,922 INFO L87 Difference]: Start difference. First operand 9222 states and 10031 transitions. Second operand 9 states. [2020-10-12 14:32:20,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:32:20,226 INFO L93 Difference]: Finished difference Result 18547 states and 20181 transitions. [2020-10-12 14:32:20,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 14:32:20,227 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 925 [2020-10-12 14:32:20,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:32:20,260 INFO L225 Difference]: With dead ends: 18547 [2020-10-12 14:32:20,260 INFO L226 Difference]: Without dead ends: 9575 [2020-10-12 14:32:20,279 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2020-10-12 14:32:20,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9575 states. [2020-10-12 14:32:20,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9575 to 9224. [2020-10-12 14:32:20,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9224 states. [2020-10-12 14:32:20,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9224 states to 9224 states and 10032 transitions. [2020-10-12 14:32:20,424 INFO L78 Accepts]: Start accepts. Automaton has 9224 states and 10032 transitions. Word has length 925 [2020-10-12 14:32:20,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:32:20,425 INFO L479 AbstractCegarLoop]: Abstraction has 9224 states and 10032 transitions. [2020-10-12 14:32:20,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 14:32:20,425 INFO L276 IsEmpty]: Start isEmpty. Operand 9224 states and 10032 transitions. [2020-10-12 14:32:20,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 997 [2020-10-12 14:32:20,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:32:20,454 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:32:20,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 14:32:20,454 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:32:20,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:32:20,455 INFO L82 PathProgramCache]: Analyzing trace with hash 53038578, now seen corresponding path program 1 times [2020-10-12 14:32:20,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:32:20,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556727139] [2020-10-12 14:32:20,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:32:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:20,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:20,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:21,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:21,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:25,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:25,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1018 [2020-10-12 14:32:25,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:32:25,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-12 14:32:25,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:25,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:25,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 416 [2020-10-12 14:32:25,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-12 14:32:25,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:25,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:32:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:25,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:25,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:25,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:32:25,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:25,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:32:25,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:25,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:25,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:25,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:25,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:25,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:32:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:25,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:25,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:25,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:32:25,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:25,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 14:32:25,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:25,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:25,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:25,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:25,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:25,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:32:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:26,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:26,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:26,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-12 14:32:26,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:26,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 14:32:26,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:26,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:32:26,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:26,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-12 14:32:26,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:26,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-12 14:32:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:26,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:26,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:26,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-12 14:32:26,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:26,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-12 14:32:26,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:26,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:26,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:32:26,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-12 14:32:26,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:26,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2020-10-12 14:32:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:26,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:26,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:26,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:32:26,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:26,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:32:26,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:26,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:26,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:32:26,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:26,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:26,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 690 [2020-10-12 14:32:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:26,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:26,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:26,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:32:26,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:26,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:32:26,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:26,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:26,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-12 14:32:26,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:26,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:26,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 773 [2020-10-12 14:32:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:26,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:26,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:26,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:32:26,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:26,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:32:26,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:26,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:26,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:32:26,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:26,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:26,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 883 [2020-10-12 14:32:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:26,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:26,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:26,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 14:32:26,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:26,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:32:26,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:26,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:26,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-12 14:32:26,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:26,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:26,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2344 backedges. 400 proven. 405 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2020-10-12 14:32:26,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1556727139] [2020-10-12 14:32:26,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:32:26,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:32:26,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622830673] [2020-10-12 14:32:26,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:32:26,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:32:26,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:32:26,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:32:26,850 INFO L87 Difference]: Start difference. First operand 9224 states and 10032 transitions. Second operand 7 states. [2020-10-12 14:32:30,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:32:30,042 INFO L93 Difference]: Finished difference Result 20913 states and 22952 transitions. [2020-10-12 14:32:30,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:32:30,043 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 996 [2020-10-12 14:32:30,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:32:30,081 INFO L225 Difference]: With dead ends: 20913 [2020-10-12 14:32:30,081 INFO L226 Difference]: Without dead ends: 11939 [2020-10-12 14:32:30,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:32:30,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11939 states. [2020-10-12 14:32:30,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11939 to 11592. [2020-10-12 14:32:30,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11592 states. [2020-10-12 14:32:30,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11592 states to 11592 states and 12688 transitions. [2020-10-12 14:32:30,260 INFO L78 Accepts]: Start accepts. Automaton has 11592 states and 12688 transitions. Word has length 996 [2020-10-12 14:32:30,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:32:30,261 INFO L479 AbstractCegarLoop]: Abstraction has 11592 states and 12688 transitions. [2020-10-12 14:32:30,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:32:30,261 INFO L276 IsEmpty]: Start isEmpty. Operand 11592 states and 12688 transitions. [2020-10-12 14:32:30,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1326 [2020-10-12 14:32:30,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:32:30,297 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:32:30,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 14:32:30,298 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:32:30,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:32:30,298 INFO L82 PathProgramCache]: Analyzing trace with hash -2113343590, now seen corresponding path program 1 times [2020-10-12 14:32:30,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:32:30,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1573278451] [2020-10-12 14:32:30,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:32:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:30,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:31,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:31,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:33,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:35,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:35,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1349 [2020-10-12 14:32:35,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:32:35,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-12 14:32:35,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:35,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:35,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1046 [2020-10-12 14:32:35,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:32:35,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:35,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:32:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:35,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:35,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:35,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:32:35,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:35,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:32:35,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:35,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:35,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:35,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:35,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:35,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:32:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:35,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:35,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:35,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:32:35,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:35,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:32:35,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:35,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:35,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:35,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:35,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:35,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:32:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:35,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:35,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:35,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:32:35,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:35,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:32:35,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:35,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:35,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:35,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:35,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:35,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:32:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:35,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:36,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:36,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:32:36,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:36,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:32:36,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:36,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:36,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:36,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:36,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:36,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:32:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:36,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:36,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:36,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:32:36,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:36,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 14:32:36,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:36,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:36,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:36,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:36,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:36,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-12 14:32:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:36,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:36,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:36,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:32:36,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:36,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:32:36,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:36,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:36,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:36,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:36,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:36,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-12 14:32:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:36,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:36,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:36,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-12 14:32:36,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:36,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-12 14:32:36,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:36,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:32:36,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:36,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-12 14:32:36,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:36,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1034 [2020-10-12 14:32:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:36,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:36,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:36,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:32:36,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:36,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-12 14:32:36,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:36,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:36,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:32:36,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 14:32:36,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:36,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1144 [2020-10-12 14:32:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:36,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:36,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:36,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 14:32:36,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:36,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 14:32:36,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:36,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:36,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-12 14:32:36,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:36,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:37,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3507 backedges. 707 proven. 109 refuted. 0 times theorem prover too weak. 2691 trivial. 0 not checked. [2020-10-12 14:32:37,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1573278451] [2020-10-12 14:32:37,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:32:37,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:32:37,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060334894] [2020-10-12 14:32:37,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:32:37,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:32:37,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:32:37,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:32:37,399 INFO L87 Difference]: Start difference. First operand 11592 states and 12688 transitions. Second operand 7 states. [2020-10-12 14:32:41,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:32:41,296 INFO L93 Difference]: Finished difference Result 23955 states and 26281 transitions. [2020-10-12 14:32:41,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 14:32:41,299 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1325 [2020-10-12 14:32:41,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:32:41,327 INFO L225 Difference]: With dead ends: 23955 [2020-10-12 14:32:41,327 INFO L226 Difference]: Without dead ends: 12613 [2020-10-12 14:32:41,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:32:41,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12613 states. [2020-10-12 14:32:41,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12613 to 12609. [2020-10-12 14:32:41,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12609 states. [2020-10-12 14:32:41,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12609 states to 12609 states and 13735 transitions. [2020-10-12 14:32:41,528 INFO L78 Accepts]: Start accepts. Automaton has 12609 states and 13735 transitions. Word has length 1325 [2020-10-12 14:32:41,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:32:41,530 INFO L479 AbstractCegarLoop]: Abstraction has 12609 states and 13735 transitions. [2020-10-12 14:32:41,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:32:41,530 INFO L276 IsEmpty]: Start isEmpty. Operand 12609 states and 13735 transitions. [2020-10-12 14:32:41,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1475 [2020-10-12 14:32:41,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:32:41,571 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:32:41,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 14:32:41,572 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:32:41,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:32:41,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1435480117, now seen corresponding path program 1 times [2020-10-12 14:32:41,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:32:41,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724627478] [2020-10-12 14:32:41,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:32:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:41,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:42,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:42,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:46,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:46,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1500 [2020-10-12 14:32:46,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:32:46,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-12 14:32:46,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:46,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:46,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 794 [2020-10-12 14:32:46,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-12 14:32:46,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:46,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:32:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:46,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:46,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:46,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:32:46,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:46,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:32:46,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:46,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:46,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:46,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:46,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:46,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:32:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:46,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:46,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:46,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:32:46,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:46,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:32:46,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:46,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:46,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:46,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:46,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:47,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:32:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:47,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:47,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:47,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:32:47,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:47,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:32:47,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:47,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:47,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:47,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:47,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:47,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:32:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:47,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:47,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:47,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:32:47,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:47,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:32:47,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:47,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:47,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:47,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:47,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:47,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:32:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:47,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:47,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:47,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:32:47,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:47,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:32:47,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:47,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:47,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:47,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:47,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:47,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-12 14:32:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:47,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:47,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:47,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:32:47,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:47,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:32:47,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:47,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:32:47,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:47,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 14:32:47,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:47,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-12 14:32:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:47,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:47,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:47,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:32:47,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:47,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-12 14:32:47,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:47,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:47,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:32:47,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-12 14:32:47,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:47,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1057 [2020-10-12 14:32:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:47,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:47,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:47,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:32:47,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:47,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 14:32:47,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:47,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:47,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-12 14:32:47,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:47,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:47,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1169 [2020-10-12 14:32:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:48,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:48,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:48,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-12 14:32:48,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:48,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-12 14:32:48,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:48,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:48,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 299 [2020-10-12 14:32:48,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:48,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:48,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:32:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:48,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:48,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:48,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 14:32:48,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:48,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:32:48,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:48,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:48,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:48,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:48,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:32:49,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3729 backedges. 877 proven. 381 refuted. 0 times theorem prover too weak. 2471 trivial. 0 not checked. [2020-10-12 14:32:49,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724627478] [2020-10-12 14:32:49,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:32:49,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:32:49,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390502328] [2020-10-12 14:32:49,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:32:49,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:32:49,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:32:49,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:32:49,685 INFO L87 Difference]: Start difference. First operand 12609 states and 13735 transitions. Second operand 7 states. [2020-10-12 14:32:54,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:32:54,325 INFO L93 Difference]: Finished difference Result 27333 states and 29882 transitions. [2020-10-12 14:32:54,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:32:54,326 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1474 [2020-10-12 14:32:54,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:32:54,355 INFO L225 Difference]: With dead ends: 27333 [2020-10-12 14:32:54,356 INFO L226 Difference]: Without dead ends: 14974 [2020-10-12 14:32:54,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:32:54,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14974 states. [2020-10-12 14:32:54,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14974 to 14635. [2020-10-12 14:32:54,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14635 states. [2020-10-12 14:32:54,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14635 states to 14635 states and 15819 transitions. [2020-10-12 14:32:54,590 INFO L78 Accepts]: Start accepts. Automaton has 14635 states and 15819 transitions. Word has length 1474 [2020-10-12 14:32:54,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:32:54,591 INFO L479 AbstractCegarLoop]: Abstraction has 14635 states and 15819 transitions. [2020-10-12 14:32:54,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:32:54,591 INFO L276 IsEmpty]: Start isEmpty. Operand 14635 states and 15819 transitions. [2020-10-12 14:32:54,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1485 [2020-10-12 14:32:54,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:32:54,632 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:32:54,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 14:32:54,632 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:32:54,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:32:54,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1750680246, now seen corresponding path program 1 times [2020-10-12 14:32:54,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:32:54,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178217472] [2020-10-12 14:32:54,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:32:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:55,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:55,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:58,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:58,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:59,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:59,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1508 [2020-10-12 14:32:59,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:32:59,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 14:32:59,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:59,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:32:59,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1077 [2020-10-12 14:32:59,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 415 [2020-10-12 14:32:59,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:59,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:32:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:59,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:59,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:59,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:32:59,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:59,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:32:59,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:59,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:59,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:59,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:59,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:00,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:33:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:00,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:00,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:00,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:33:00,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:00,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:33:00,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:00,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:00,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:00,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:00,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:00,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:33:00,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:00,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:00,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:00,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:33:00,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:00,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:33:00,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:00,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:00,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:00,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:00,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:00,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:33:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:00,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:00,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:00,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:33:00,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:00,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:33:00,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:00,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:00,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:00,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:00,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:00,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:33:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:00,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:00,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:00,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:33:00,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:00,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:33:00,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:00,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:00,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:00,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:00,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:00,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-12 14:33:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:00,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:00,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:00,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:33:00,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:00,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-12 14:33:00,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:00,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:33:00,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:00,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 14:33:00,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:00,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-12 14:33:00,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:00,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:00,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:00,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:00,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:33:00,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:33:00,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-12 14:33:00,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:33:00,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:33:00,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:33:00,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1179 [2020-10-12 14:33:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:01,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:01,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:01,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-12 14:33:01,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:01,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 723 [2020-10-12 14:33:01,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:01,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:33:01,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:33:01,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 302 [2020-10-12 14:33:01,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:01,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:33:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:01,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:01,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:01,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 14:33:01,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:01,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:33:01,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:01,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:33:01,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:33:01,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 14:33:01,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:02,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3566 backedges. 1771 proven. 6 refuted. 0 times theorem prover too weak. 1789 trivial. 0 not checked. [2020-10-12 14:33:02,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178217472] [2020-10-12 14:33:02,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:33:02,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 14:33:02,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432453967] [2020-10-12 14:33:02,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 14:33:02,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:33:02,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 14:33:02,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:33:02,982 INFO L87 Difference]: Start difference. First operand 14635 states and 15819 transitions. Second operand 9 states. [2020-10-12 14:33:06,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:33:06,771 INFO L93 Difference]: Finished difference Result 29789 states and 32361 transitions. [2020-10-12 14:33:06,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 14:33:06,772 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1484 [2020-10-12 14:33:06,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:33:06,799 INFO L225 Difference]: With dead ends: 29789 [2020-10-12 14:33:06,799 INFO L226 Difference]: Without dead ends: 14031 [2020-10-12 14:33:06,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-12 14:33:06,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14031 states. [2020-10-12 14:33:06,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14031 to 13606. [2020-10-12 14:33:06,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13606 states. [2020-10-12 14:33:07,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13606 states to 13606 states and 14537 transitions. [2020-10-12 14:33:07,009 INFO L78 Accepts]: Start accepts. Automaton has 13606 states and 14537 transitions. Word has length 1484 [2020-10-12 14:33:07,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:33:07,010 INFO L479 AbstractCegarLoop]: Abstraction has 13606 states and 14537 transitions. [2020-10-12 14:33:07,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 14:33:07,010 INFO L276 IsEmpty]: Start isEmpty. Operand 13606 states and 14537 transitions. [2020-10-12 14:33:07,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1613 [2020-10-12 14:33:07,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:33:07,042 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:33:07,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 14:33:07,042 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:33:07,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:33:07,043 INFO L82 PathProgramCache]: Analyzing trace with hash 703836775, now seen corresponding path program 1 times [2020-10-12 14:33:07,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:33:07,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1577760714] [2020-10-12 14:33:07,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:33:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:07,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:07,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:09,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:10,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:12,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:12,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1636 [2020-10-12 14:33:12,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:33:12,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5122 [2020-10-12 14:33:12,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:12,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:33:12,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1077 [2020-10-12 14:33:12,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 371 [2020-10-12 14:33:12,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:12,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:33:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:12,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:12,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:12,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:33:12,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:12,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:33:12,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:12,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:12,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:12,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:12,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:12,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:33:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:12,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:12,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:12,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:33:12,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:12,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 14:33:12,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:12,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:12,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:12,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:12,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:12,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:33:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:12,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:12,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:12,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:33:12,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:12,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 14:33:12,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:12,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:12,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:12,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:12,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:12,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:33:12,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:12,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:12,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:12,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:33:12,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:12,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:33:12,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:12,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:12,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:12,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:12,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:12,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:33:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:12,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:12,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:12,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:33:12,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:12,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:33:12,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:12,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:12,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:12,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:12,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:12,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-12 14:33:12,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:12,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:12,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:12,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:33:12,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:12,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-12 14:33:12,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:33:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 14:33:12,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:13,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-12 14:33:13,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:13,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:13,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:13,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:13,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:33:13,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:33:13,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-12 14:33:13,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:13,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:13,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:33:13,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:33:13,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:33:13,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1179 [2020-10-12 14:33:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:13,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:13,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:13,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-12 14:33:13,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:13,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-12 14:33:13,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:13,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:13,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:33:13,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-12 14:33:13,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:13,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1433 [2020-10-12 14:33:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:13,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:14,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:14,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 14:33:14,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:14,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 14:33:14,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:14,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:14,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-12 14:33:14,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:14,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:15,148 INFO L134 CoverageAnalysis]: Checked inductivity of 4660 backedges. 1678 proven. 283 refuted. 0 times theorem prover too weak. 2699 trivial. 0 not checked. [2020-10-12 14:33:15,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1577760714] [2020-10-12 14:33:15,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:33:15,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:33:15,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179116602] [2020-10-12 14:33:15,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:33:15,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:33:15,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:33:15,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:33:15,151 INFO L87 Difference]: Start difference. First operand 13606 states and 14537 transitions. Second operand 7 states. [2020-10-12 14:33:18,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:33:18,499 INFO L93 Difference]: Finished difference Result 26974 states and 28842 transitions. [2020-10-12 14:33:18,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:33:18,500 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1612 [2020-10-12 14:33:18,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:33:18,529 INFO L225 Difference]: With dead ends: 26974 [2020-10-12 14:33:18,529 INFO L226 Difference]: Without dead ends: 13618 [2020-10-12 14:33:18,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:33:18,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13618 states. [2020-10-12 14:33:18,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13618 to 13610. [2020-10-12 14:33:18,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13610 states. [2020-10-12 14:33:18,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13610 states to 13610 states and 14487 transitions. [2020-10-12 14:33:18,744 INFO L78 Accepts]: Start accepts. Automaton has 13610 states and 14487 transitions. Word has length 1612 [2020-10-12 14:33:18,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:33:18,745 INFO L479 AbstractCegarLoop]: Abstraction has 13610 states and 14487 transitions. [2020-10-12 14:33:18,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:33:18,745 INFO L276 IsEmpty]: Start isEmpty. Operand 13610 states and 14487 transitions. [2020-10-12 14:33:18,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1684 [2020-10-12 14:33:18,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:33:18,786 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:33:18,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 14:33:18,787 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:33:18,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:33:18,787 INFO L82 PathProgramCache]: Analyzing trace with hash -806110963, now seen corresponding path program 1 times [2020-10-12 14:33:18,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:33:18,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [830198491] [2020-10-12 14:33:18,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:33:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:19,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:19,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:19,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:24,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:24,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1709 [2020-10-12 14:33:24,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:33:24,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5103 [2020-10-12 14:33:24,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:24,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:24,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-12 14:33:24,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 14:33:24,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:24,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:33:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:24,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:24,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:24,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:33:24,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:24,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:33:24,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:24,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:24,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:24,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:24,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:24,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:33:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:24,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:24,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:24,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:33:24,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:24,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 14:33:24,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:24,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:24,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:24,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:24,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:24,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:33:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:24,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:24,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:24,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:33:24,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:24,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-12 14:33:24,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:24,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:33:24,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:24,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-12 14:33:24,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:24,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:33:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:24,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:24,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:24,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:33:24,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:24,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-12 14:33:24,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:24,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:24,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:33:24,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 14:33:24,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:25,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:33:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:25,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:25,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:25,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:33:25,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:25,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-12 14:33:25,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:25,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:25,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-12 14:33:25,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:25,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:25,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-12 14:33:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:25,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:25,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:25,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:33:25,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:25,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 14:33:25,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:25,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:25,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-12 14:33:25,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:25,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:25,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-12 14:33:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:25,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:25,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:25,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:33:25,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:25,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:33:25,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:25,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:25,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-12 14:33:25,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:25,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:25,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1179 [2020-10-12 14:33:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:25,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:25,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:25,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:33:25,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:25,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:33:25,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:25,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:25,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-12 14:33:25,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:25,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:25,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1250 [2020-10-12 14:33:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:25,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:25,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:25,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-12 14:33:25,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:25,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-12 14:33:25,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:25,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:25,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-12 14:33:25,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:25,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:25,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1504 [2020-10-12 14:33:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:25,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:25,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:25,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 14:33:25,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:25,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 14:33:25,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:25,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:25,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-12 14:33:25,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:25,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:27,344 INFO L134 CoverageAnalysis]: Checked inductivity of 5235 backedges. 368 proven. 683 refuted. 0 times theorem prover too weak. 4184 trivial. 0 not checked. [2020-10-12 14:33:27,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [830198491] [2020-10-12 14:33:27,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:33:27,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:33:27,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010670709] [2020-10-12 14:33:27,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:33:27,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:33:27,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:33:27,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:33:27,348 INFO L87 Difference]: Start difference. First operand 13610 states and 14487 transitions. Second operand 7 states. [2020-10-12 14:33:30,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:33:30,862 INFO L93 Difference]: Finished difference Result 27313 states and 29091 transitions. [2020-10-12 14:33:30,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 14:33:30,864 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1683 [2020-10-12 14:33:30,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:33:30,889 INFO L225 Difference]: With dead ends: 27313 [2020-10-12 14:33:30,890 INFO L226 Difference]: Without dead ends: 13953 [2020-10-12 14:33:30,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:33:30,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13953 states. [2020-10-12 14:33:31,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13953 to 13949. [2020-10-12 14:33:31,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13949 states. [2020-10-12 14:33:31,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13949 states to 13949 states and 14833 transitions. [2020-10-12 14:33:31,082 INFO L78 Accepts]: Start accepts. Automaton has 13949 states and 14833 transitions. Word has length 1683 [2020-10-12 14:33:31,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:33:31,083 INFO L479 AbstractCegarLoop]: Abstraction has 13949 states and 14833 transitions. [2020-10-12 14:33:31,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:33:31,083 INFO L276 IsEmpty]: Start isEmpty. Operand 13949 states and 14833 transitions. [2020-10-12 14:33:31,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1686 [2020-10-12 14:33:31,115 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:33:31,116 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:33:31,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 14:33:31,116 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:33:31,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:33:31,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1798096207, now seen corresponding path program 1 times [2020-10-12 14:33:31,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:33:31,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620879509] [2020-10-12 14:33:31,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:33:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:31,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:31,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:32,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:32,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:36,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:36,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1711 [2020-10-12 14:33:36,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:33:36,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-12 14:33:36,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:36,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:36,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1522 [2020-10-12 14:33:36,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 14:33:36,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:36,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:33:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:36,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:36,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:36,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:33:36,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:36,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:33:36,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:36,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:36,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:36,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:36,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:36,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:33:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:36,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:36,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:36,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:33:36,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:36,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:33:36,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:36,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:36,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:33:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:36,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:36,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:36,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-12 14:33:36,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:36,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:33:36,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:36,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:36,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-12 14:33:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:36,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:36,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:36,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:33:36,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:36,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:33:36,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:36,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:36,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:36,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:36,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:36,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-12 14:33:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:36,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:36,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:36,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:33:36,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:36,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:33:36,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:36,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:36,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2020-10-12 14:33:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:36,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:36,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:36,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:33:36,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:36,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:33:36,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:36,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:36,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:36,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:36,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:37,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1069 [2020-10-12 14:33:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:37,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:37,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:37,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:33:37,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:37,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:33:37,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:37,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:37,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:37,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:37,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:37,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1181 [2020-10-12 14:33:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:37,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:37,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:37,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:33:37,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:37,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:33:37,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:37,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:37,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:37,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:37,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:37,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1252 [2020-10-12 14:33:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:37,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:37,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:37,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-12 14:33:37,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:37,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-12 14:33:37,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:33:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 249 [2020-10-12 14:33:37,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:37,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1506 [2020-10-12 14:33:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:37,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:37,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:37,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 14:33:37,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:37,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-12 14:33:37,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:37,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:33:37,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 14:33:37,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:38,751 INFO L134 CoverageAnalysis]: Checked inductivity of 5241 backedges. 1251 proven. 2 refuted. 0 times theorem prover too weak. 3988 trivial. 0 not checked. [2020-10-12 14:33:38,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620879509] [2020-10-12 14:33:38,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:33:38,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:33:38,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904796239] [2020-10-12 14:33:38,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:33:38,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:33:38,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:33:38,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:33:38,754 INFO L87 Difference]: Start difference. First operand 13949 states and 14833 transitions. Second operand 7 states. [2020-10-12 14:33:42,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:33:42,544 INFO L93 Difference]: Finished difference Result 30025 states and 32142 transitions. [2020-10-12 14:33:42,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:33:42,545 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1685 [2020-10-12 14:33:42,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:33:42,570 INFO L225 Difference]: With dead ends: 30025 [2020-10-12 14:33:42,570 INFO L226 Difference]: Without dead ends: 16326 [2020-10-12 14:33:42,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:33:42,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16326 states. [2020-10-12 14:33:42,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16326 to 15977. [2020-10-12 14:33:42,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15977 states. [2020-10-12 14:33:42,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15977 states to 15977 states and 16902 transitions. [2020-10-12 14:33:42,783 INFO L78 Accepts]: Start accepts. Automaton has 15977 states and 16902 transitions. Word has length 1685 [2020-10-12 14:33:42,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:33:42,784 INFO L479 AbstractCegarLoop]: Abstraction has 15977 states and 16902 transitions. [2020-10-12 14:33:42,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:33:42,785 INFO L276 IsEmpty]: Start isEmpty. Operand 15977 states and 16902 transitions. [2020-10-12 14:33:42,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1698 [2020-10-12 14:33:42,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:33:42,821 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:33:42,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 14:33:42,821 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:33:42,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:33:42,822 INFO L82 PathProgramCache]: Analyzing trace with hash -669046873, now seen corresponding path program 1 times [2020-10-12 14:33:42,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:33:42,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [553454907] [2020-10-12 14:33:42,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:33:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:43,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:43,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:43,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:48,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:48,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1725 [2020-10-12 14:33:48,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:33:48,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5114 [2020-10-12 14:33:48,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:48,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:48,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1191 [2020-10-12 14:33:48,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-12 14:33:48,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:48,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:33:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:48,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:48,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:48,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:33:48,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:48,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:33:48,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:48,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:48,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:48,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:48,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:48,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:33:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:48,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:48,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:48,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:33:48,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:48,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 14:33:48,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:48,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:48,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:48,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:48,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:48,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:33:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:48,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:48,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:48,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-12 14:33:48,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:48,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 14:33:48,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:48,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:48,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:48,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:48,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:48,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-12 14:33:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:48,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:48,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:48,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:33:48,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:48,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:33:48,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:48,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:48,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:48,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:48,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:48,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-12 14:33:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:48,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:48,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:48,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:33:48,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:48,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 14:33:48,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:48,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:48,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:48,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:48,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:48,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2020-10-12 14:33:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:48,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:48,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:48,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:33:48,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:48,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:33:48,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:48,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:48,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:48,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:48,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:48,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 879 [2020-10-12 14:33:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:48,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:48,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:48,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 14:33:48,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:48,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:33:48,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:48,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:48,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:48,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:48,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:48,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-12 14:33:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:49,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:49,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:49,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:33:49,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:49,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:33:49,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:49,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:33:49,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:49,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 14:33:49,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:49,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1177 [2020-10-12 14:33:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:49,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:49,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:49,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:33:49,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:49,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-12 14:33:49,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:49,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:49,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:33:49,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-12 14:33:49,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:49,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1392 [2020-10-12 14:33:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:49,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:49,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:49,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-12 14:33:49,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:49,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 14:33:49,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:49,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:49,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 299 [2020-10-12 14:33:49,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:49,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:49,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:33:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:49,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:49,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:49,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 14:33:49,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:49,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:33:49,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:49,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:49,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:49,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:49,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:51,097 INFO L134 CoverageAnalysis]: Checked inductivity of 5325 backedges. 1235 proven. 214 refuted. 0 times theorem prover too weak. 3876 trivial. 0 not checked. [2020-10-12 14:33:51,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [553454907] [2020-10-12 14:33:51,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:33:51,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:33:51,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113902473] [2020-10-12 14:33:51,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:33:51,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:33:51,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:33:51,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:33:51,105 INFO L87 Difference]: Start difference. First operand 15977 states and 16902 transitions. Second operand 7 states. [2020-10-12 14:33:54,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:33:54,773 INFO L93 Difference]: Finished difference Result 31716 states and 33568 transitions. [2020-10-12 14:33:54,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:33:54,774 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1697 [2020-10-12 14:33:54,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:33:54,798 INFO L225 Difference]: With dead ends: 31716 [2020-10-12 14:33:54,798 INFO L226 Difference]: Without dead ends: 15989 [2020-10-12 14:33:54,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:33:54,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15989 states. [2020-10-12 14:33:54,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15989 to 15977. [2020-10-12 14:33:54,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15977 states. [2020-10-12 14:33:54,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15977 states to 15977 states and 16866 transitions. [2020-10-12 14:33:54,968 INFO L78 Accepts]: Start accepts. Automaton has 15977 states and 16866 transitions. Word has length 1697 [2020-10-12 14:33:54,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:33:54,970 INFO L479 AbstractCegarLoop]: Abstraction has 15977 states and 16866 transitions. [2020-10-12 14:33:54,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:33:54,970 INFO L276 IsEmpty]: Start isEmpty. Operand 15977 states and 16866 transitions. [2020-10-12 14:33:55,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1702 [2020-10-12 14:33:55,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:33:55,010 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:33:55,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 14:33:55,011 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:33:55,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:33:55,011 INFO L82 PathProgramCache]: Analyzing trace with hash -923861580, now seen corresponding path program 1 times [2020-10-12 14:33:55,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:33:55,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198378030] [2020-10-12 14:33:55,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:33:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:55,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:55,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:56,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:56,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:00,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:00,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1727 [2020-10-12 14:34:00,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:34:00,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5102 [2020-10-12 14:34:00,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:00,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:34:00,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1079 [2020-10-12 14:34:00,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 332 [2020-10-12 14:34:00,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:00,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:34:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:00,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:00,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:00,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:34:00,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:00,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:34:00,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:00,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:00,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:00,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:00,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:00,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:34:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:00,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:00,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:00,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:34:00,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:00,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:34:00,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:00,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:00,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:00,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:00,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:00,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:34:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:00,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:00,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:00,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-12 14:34:00,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:00,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:34:00,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:00,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:00,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:00,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:00,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:00,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-12 14:34:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:00,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:00,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:00,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:34:00,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:00,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:34:00,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:00,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:00,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:00,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:00,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:00,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-12 14:34:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:00,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:00,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:00,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:34:00,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:00,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:34:00,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:00,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:00,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:00,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:00,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:00,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2020-10-12 14:34:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:00,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:00,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:00,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:34:00,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:00,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-12 14:34:00,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:00,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:34:00,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:00,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 14:34:00,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:01,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1069 [2020-10-12 14:34:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:01,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:01,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:01,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:01,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:34:01,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:34:01,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-12 14:34:01,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:01,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:01,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:34:01,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:34:01,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:01,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1181 [2020-10-12 14:34:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:01,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:01,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:01,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:34:01,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:01,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-12 14:34:01,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:01,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:01,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:34:01,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-12 14:34:01,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0