/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_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:35:54,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:35:54,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:35:54,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:35:54,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:35:54,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:35:54,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:35:54,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:35:54,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:35:54,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:35:54,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:35:54,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:35:54,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:35:54,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:35:54,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:35:54,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:35:54,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:35:54,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:35:54,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:35:54,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:35:54,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:35:54,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:35:54,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:35:54,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:35:54,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:35:54,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:35:54,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:35:54,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:35:54,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:35:54,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:35:54,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:35:54,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:35:54,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:35:54,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:35:54,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:35:54,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:35:54,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:35:54,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:35:54,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:35:54,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:35:54,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:35:54,551 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 14:35:54,573 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:35:54,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:35:54,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:35:54,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:35:54,575 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:35:54,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:35:54,575 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:35:54,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:35:54,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:35:54,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:35:54,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:35:54,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:35:54,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:35:54,576 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:35:54,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:35:54,577 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:35:54,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:35:54,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:35:54,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:35:54,578 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:35:54,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:35:54,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:35:54,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:35:54,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:35:54,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:35:54,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:35:54,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:35:54,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:35:54,579 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:35:54,580 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 14:35:54,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:35:54,888 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:35:54,892 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:35:54,893 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:35:54,894 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:35:54,895 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label54.c [2020-10-12 14:35:54,962 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f7d13db7/8beedc5cea264f85945a6c138b5cfe25/FLAG81701a615 [2020-10-12 14:35:55,615 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:35:55,616 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label54.c [2020-10-12 14:35:55,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f7d13db7/8beedc5cea264f85945a6c138b5cfe25/FLAG81701a615 [2020-10-12 14:35:55,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f7d13db7/8beedc5cea264f85945a6c138b5cfe25 [2020-10-12 14:35:55,798 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:35:55,800 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:35:55,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:35:55,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:35:55,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:35:55,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:35:55" (1/1) ... [2020-10-12 14:35:55,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b19e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:35:55, skipping insertion in model container [2020-10-12 14:35:55,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:35:55" (1/1) ... [2020-10-12 14:35:55,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:35:55,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:35:56,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:35:56,664 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:35:56,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:35:56,988 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:35:56,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:35:56 WrapperNode [2020-10-12 14:35:56,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:35:56,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:35:56,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:35:56,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:35:57,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:35:56" (1/1) ... [2020-10-12 14:35:57,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:35:56" (1/1) ... [2020-10-12 14:35:57,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:35:56" (1/1) ... [2020-10-12 14:35:57,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:35:56" (1/1) ... [2020-10-12 14:35:57,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:35:56" (1/1) ... [2020-10-12 14:35:57,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:35:56" (1/1) ... [2020-10-12 14:35:57,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:35:56" (1/1) ... [2020-10-12 14:35:57,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:35:57,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:35:57,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:35:57,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:35:57,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:35:56" (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 14:35:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:35:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:35:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:35:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 14:35:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:35:57,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:35:57,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 14:35:57,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:35:57,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:35:57,255 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:35:57,255 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:35:57,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:35:57,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:36:01,753 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:36:01,754 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:36:01,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:36:01 BoogieIcfgContainer [2020-10-12 14:36:01,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:36:01,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:36:01,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:36:01,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:36:01,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:35:55" (1/3) ... [2020-10-12 14:36:01,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783dfc3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:36:01, skipping insertion in model container [2020-10-12 14:36:01,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:35:56" (2/3) ... [2020-10-12 14:36:01,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783dfc3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:36:01, skipping insertion in model container [2020-10-12 14:36:01,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:36:01" (3/3) ... [2020-10-12 14:36:01,769 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label54.c [2020-10-12 14:36:01,779 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:36:01,788 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:36:01,802 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:36:01,827 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:36:01,827 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:36:01,827 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:36:01,828 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:36:01,828 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:36:01,828 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:36:01,828 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:36:01,828 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:36:01,853 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-12 14:36:01,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-12 14:36:01,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:36:01,861 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:36:01,861 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:36:01,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:36:01,867 INFO L82 PathProgramCache]: Analyzing trace with hash -2111146062, now seen corresponding path program 1 times [2020-10-12 14:36:01,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:36:01,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [82091991] [2020-10-12 14:36:01,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:36:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:02,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:02,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:02,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-12 14:36:02,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:02,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-12 14:36:02,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:02,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:36:02,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:36:02,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 14:36:02,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:36:02,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:02,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:02,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:02,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:02,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:02,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:36:02,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:02,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:02,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:02,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:36:02,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:02,450 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 14:36:02,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [82091991] [2020-10-12 14:36:02,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:36:02,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:36:02,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240507450] [2020-10-12 14:36:02,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:36:02,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:36:02,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:36:02,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:36:02,476 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-12 14:36:06,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:36:06,100 INFO L93 Difference]: Finished difference Result 1169 states and 2164 transitions. [2020-10-12 14:36:06,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:36:06,102 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-12 14:36:06,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:36:06,132 INFO L225 Difference]: With dead ends: 1169 [2020-10-12 14:36:06,132 INFO L226 Difference]: Without dead ends: 696 [2020-10-12 14:36:06,145 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 14:36:06,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-12 14:36:06,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 692. [2020-10-12 14:36:06,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-12 14:36:06,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2020-10-12 14:36:06,247 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 31 [2020-10-12 14:36:06,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:36:06,248 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2020-10-12 14:36:06,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:36:06,251 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2020-10-12 14:36:06,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-12 14:36:06,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:36:06,257 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:36:06,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:36:06,257 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:36:06,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:36:06,258 INFO L82 PathProgramCache]: Analyzing trace with hash 482410430, now seen corresponding path program 1 times [2020-10-12 14:36:06,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:36:06,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126971908] [2020-10-12 14:36:06,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:36:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:06,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:06,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:07,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:07,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 14:36:07,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:36:07,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 710 [2020-10-12 14:36:07,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:07,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:36:07,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:36:07,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 14:36:07,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:36:07,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:07,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:07,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:07,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:07,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:07,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:36:07,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:07,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:07,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:07,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:36:07,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 14:36:07,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:36:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:07,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:07,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:07,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:36:07,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:07,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-12 14:36:07,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:07,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:07,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:07,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 14:36:07,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:07,508 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:36:07,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126971908] [2020-10-12 14:36:07,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:36:07,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:36:07,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825746617] [2020-10-12 14:36:07,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:36:07,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:36:07,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:36:07,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:36:07,513 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand 7 states. [2020-10-12 14:36:11,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:36:11,430 INFO L93 Difference]: Finished difference Result 2079 states and 3076 transitions. [2020-10-12 14:36:11,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:36:11,431 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-10-12 14:36:11,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:36:11,441 INFO L225 Difference]: With dead ends: 2079 [2020-10-12 14:36:11,441 INFO L226 Difference]: Without dead ends: 1393 [2020-10-12 14:36:11,444 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 14:36:11,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2020-10-12 14:36:11,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1385. [2020-10-12 14:36:11,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1385 states. [2020-10-12 14:36:11,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 1821 transitions. [2020-10-12 14:36:11,528 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 1821 transitions. Word has length 107 [2020-10-12 14:36:11,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:36:11,529 INFO L479 AbstractCegarLoop]: Abstraction has 1385 states and 1821 transitions. [2020-10-12 14:36:11,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:36:11,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 1821 transitions. [2020-10-12 14:36:11,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-12 14:36:11,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:36:11,544 INFO L422 BasicCegarLoop]: trace histogram [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, 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 14:36:11,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:36:11,545 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:36:11,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:36:11,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1668493935, now seen corresponding path program 1 times [2020-10-12 14:36:11,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:36:11,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482018412] [2020-10-12 14:36:11,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:36:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:11,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:11,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:11,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:12,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:12,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:13,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:15,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:15,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-12 14:36:15,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:36:15,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3717 [2020-10-12 14:36:15,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:15,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 14:36:15,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:36:15,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 200 [2020-10-12 14:36:15,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:15,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:15,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:15,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:15,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:15,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:15,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:36:15,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:15,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:15,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:15,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:36:15,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:36:15,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:36:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:15,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:15,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:15,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:15,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:36:15,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:36:15,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-12 14:36:15,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:15,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:15,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:15,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 14:36:15,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:15,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:36:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:15,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:15,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:16,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:16,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 14:36:16,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:36:16,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-10-12 14:36:16,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:16,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:36:16,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:16,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 14:36:16,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:16,796 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 18 proven. 98 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 14:36:16,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482018412] [2020-10-12 14:36:16,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:36:16,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 14:36:16,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760569028] [2020-10-12 14:36:16,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 14:36:16,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:36:16,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 14:36:16,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:36:16,801 INFO L87 Difference]: Start difference. First operand 1385 states and 1821 transitions. Second operand 12 states. [2020-10-12 14:36:24,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:36:24,149 INFO L93 Difference]: Finished difference Result 3917 states and 5309 transitions. [2020-10-12 14:36:24,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 14:36:24,149 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 194 [2020-10-12 14:36:24,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:36:24,164 INFO L225 Difference]: With dead ends: 3917 [2020-10-12 14:36:24,164 INFO L226 Difference]: Without dead ends: 2538 [2020-10-12 14:36:24,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=292, Invalid=764, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 14:36:24,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2020-10-12 14:36:24,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2434. [2020-10-12 14:36:24,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2434 states. [2020-10-12 14:36:24,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2434 states to 2434 states and 3253 transitions. [2020-10-12 14:36:24,241 INFO L78 Accepts]: Start accepts. Automaton has 2434 states and 3253 transitions. Word has length 194 [2020-10-12 14:36:24,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:36:24,242 INFO L479 AbstractCegarLoop]: Abstraction has 2434 states and 3253 transitions. [2020-10-12 14:36:24,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 14:36:24,242 INFO L276 IsEmpty]: Start isEmpty. Operand 2434 states and 3253 transitions. [2020-10-12 14:36:24,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-10-12 14:36:24,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:36:24,255 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:36:24,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:36:24,256 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:36:24,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:36:24,256 INFO L82 PathProgramCache]: Analyzing trace with hash -2053729753, now seen corresponding path program 1 times [2020-10-12 14:36:24,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:36:24,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623207162] [2020-10-12 14:36:24,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:36:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:24,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:24,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:24,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:24,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:25,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:27,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:29,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:29,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 372 [2020-10-12 14:36:29,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:36:29,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-12 14:36:29,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:29,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 14:36:29,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:36:29,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 337 [2020-10-12 14:36:29,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:29,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:29,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:29,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:29,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:29,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:29,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:36:29,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:36:29,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:29,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:36:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:29,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:29,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:29,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:29,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:36:29,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:36:29,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-12 14:36:29,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:29,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:29,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:29,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 14:36:29,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:29,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:36:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:29,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:29,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:29,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:29,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 14:36:29,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:36:29,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-12 14:36:29,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:29,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-12 14:36:29,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:36:29,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 14:36:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:29,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:30,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:30,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 14:36:30,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:30,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-12 14:36:30,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:30,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:30,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:30,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-12 14:36:30,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:30,288 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 74 proven. 4 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2020-10-12 14:36:30,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623207162] [2020-10-12 14:36:30,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:36:30,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:36:30,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830103930] [2020-10-12 14:36:30,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:36:30,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:36:30,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:36:30,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:36:30,293 INFO L87 Difference]: Start difference. First operand 2434 states and 3253 transitions. Second operand 8 states. [2020-10-12 14:36:34,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:36:34,623 INFO L93 Difference]: Finished difference Result 5589 states and 7871 transitions. [2020-10-12 14:36:34,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:36:34,624 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 358 [2020-10-12 14:36:34,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:36:34,645 INFO L225 Difference]: With dead ends: 5589 [2020-10-12 14:36:34,645 INFO L226 Difference]: Without dead ends: 3161 [2020-10-12 14:36:34,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:36:34,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2020-10-12 14:36:34,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 3132. [2020-10-12 14:36:34,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3132 states. [2020-10-12 14:36:34,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 4234 transitions. [2020-10-12 14:36:34,746 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 4234 transitions. Word has length 358 [2020-10-12 14:36:34,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:36:34,748 INFO L479 AbstractCegarLoop]: Abstraction has 3132 states and 4234 transitions. [2020-10-12 14:36:34,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:36:34,749 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 4234 transitions. [2020-10-12 14:36:34,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2020-10-12 14:36:34,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:36:34,760 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-10-12 14:36:34,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:36:34,760 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:36:34,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:36:34,761 INFO L82 PathProgramCache]: Analyzing trace with hash -2084755186, now seen corresponding path program 1 times [2020-10-12 14:36:34,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:36:34,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [459420942] [2020-10-12 14:36:34,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:36:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:34,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:34,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:35,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:35,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:36,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:37,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:39,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:39,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 489 [2020-10-12 14:36:39,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:36:39,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-12 14:36:39,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:39,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:36:39,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-12 14:36:39,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-12 14:36:39,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:39,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:39,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:39,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:39,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:39,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:39,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:36:39,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:39,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:39,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:39,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:39,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:39,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:36:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:39,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:40,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:40,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:36:40,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:40,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 14:36:40,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:40,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:40,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:40,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 14:36:40,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:36:40,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:36:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:40,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:40,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:40,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:40,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 14:36:40,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:36:40,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-10-12 14:36:40,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:40,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:40,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:40,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-12 14:36:40,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:36:40,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 14:36:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:40,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:40,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:40,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:36:40,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:40,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-12 14:36:40,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:40,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:40,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:40,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 14:36:40,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:40,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2020-10-12 14:36:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:40,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:40,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:40,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 14:36:40,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:40,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 14:36:40,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:40,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:40,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-12 14:36:40,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:40,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:41,155 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 280 proven. 200 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2020-10-12 14:36:41,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [459420942] [2020-10-12 14:36:41,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:36:41,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:36:41,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283702632] [2020-10-12 14:36:41,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:36:41,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:36:41,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:36:41,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:36:41,158 INFO L87 Difference]: Start difference. First operand 3132 states and 4234 transitions. Second operand 7 states. [2020-10-12 14:36:45,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:36:45,669 INFO L93 Difference]: Finished difference Result 7703 states and 10554 transitions. [2020-10-12 14:36:45,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:36:45,670 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 473 [2020-10-12 14:36:45,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:36:45,689 INFO L225 Difference]: With dead ends: 7703 [2020-10-12 14:36:45,689 INFO L226 Difference]: Without dead ends: 3852 [2020-10-12 14:36:45,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 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 14:36:45,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3852 states. [2020-10-12 14:36:45,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3852 to 3830. [2020-10-12 14:36:45,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3830 states. [2020-10-12 14:36:45,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3830 states to 3830 states and 4320 transitions. [2020-10-12 14:36:45,785 INFO L78 Accepts]: Start accepts. Automaton has 3830 states and 4320 transitions. Word has length 473 [2020-10-12 14:36:45,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:36:45,785 INFO L479 AbstractCegarLoop]: Abstraction has 3830 states and 4320 transitions. [2020-10-12 14:36:45,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:36:45,785 INFO L276 IsEmpty]: Start isEmpty. Operand 3830 states and 4320 transitions. [2020-10-12 14:36:45,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2020-10-12 14:36:45,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:36:45,806 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-10-12 14:36:45,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:36:45,806 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:36:45,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:36:45,807 INFO L82 PathProgramCache]: Analyzing trace with hash 681594515, now seen corresponding path program 1 times [2020-10-12 14:36:45,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:36:45,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366729898] [2020-10-12 14:36:45,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:36:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:45,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:46,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:46,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:46,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:50,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:50,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 718 [2020-10-12 14:36:50,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:36:50,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5087 [2020-10-12 14:36:50,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:50,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:36:50,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:36:50,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:36:50,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:36:51,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:51,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:51,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:51,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:51,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:51,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:36:51,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:51,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:51,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:51,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:36:51,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:36:51,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:36:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:51,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:51,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:51,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:36:51,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:51,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-12 14:36:51,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:51,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:51,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:51,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-12 14:36:51,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:51,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 14:36:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:51,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:51,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:51,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:36:51,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:51,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 14:36:51,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:51,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:51,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-12 14:36:51,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:51,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:51,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-12 14:36:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:51,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:51,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:51,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:36:51,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:51,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:36:51,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:51,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:51,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:36:51,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:51,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:51,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-12 14:36:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:51,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:51,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:51,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:36:51,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:51,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:36:51,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:51,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:51,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:36:51,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:51,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:36:51,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-12 14:36:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:51,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:51,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:51,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:36:51,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:51,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-12 14:36:51,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:51,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:51,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-12 14:36:51,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:51,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:52,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 120 proven. 380 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2020-10-12 14:36:52,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366729898] [2020-10-12 14:36:52,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:36:52,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:36:52,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886067317] [2020-10-12 14:36:52,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:36:52,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:36:52,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:36:52,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:36:52,099 INFO L87 Difference]: Start difference. First operand 3830 states and 4320 transitions. Second operand 7 states. [2020-10-12 14:36:54,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:36:54,883 INFO L93 Difference]: Finished difference Result 8484 states and 10077 transitions. [2020-10-12 14:36:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:36:54,884 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 700 [2020-10-12 14:36:54,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:36:54,908 INFO L225 Difference]: With dead ends: 8484 [2020-10-12 14:36:54,908 INFO L226 Difference]: Without dead ends: 4660 [2020-10-12 14:36:54,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:36:54,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4660 states. [2020-10-12 14:36:55,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4660 to 4524. [2020-10-12 14:36:55,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4524 states. [2020-10-12 14:36:55,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 5032 transitions. [2020-10-12 14:36:55,038 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 5032 transitions. Word has length 700 [2020-10-12 14:36:55,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:36:55,038 INFO L479 AbstractCegarLoop]: Abstraction has 4524 states and 5032 transitions. [2020-10-12 14:36:55,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:36:55,039 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 5032 transitions. [2020-10-12 14:36:55,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 840 [2020-10-12 14:36:55,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:36:55,073 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:36:55,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:36:55,073 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:36:55,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:36:55,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1030176526, now seen corresponding path program 1 times [2020-10-12 14:36:55,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:36:55,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540419034] [2020-10-12 14:36:55,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:36:55,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:55,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:55,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:55,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:59,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:00,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:00,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:00,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 857 [2020-10-12 14:37:00,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:37:00,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-12 14:37:00,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:37:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 609 [2020-10-12 14:37:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 247 [2020-10-12 14:37:00,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:00,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:37:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:00,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:00,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:00,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:37:00,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:00,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:37:00,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:00,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:00,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:00,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:00,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:00,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:37:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:00,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:00,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:00,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:37:00,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:00,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 14:37:00,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:00,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:00,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:00,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:00,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:00,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:37:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:00,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:00,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:00,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:37:00,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:00,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:37:00,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:00,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:00,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:00,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:00,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:00,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-12 14:37:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:00,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:00,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:00,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:37:00,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:00,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:37:00,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:00,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:00,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:00,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:00,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:00,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2020-10-12 14:37:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:00,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:00,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:00,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:37:00,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:00,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-12 14:37:00,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:00,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:37:00,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:00,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 14:37:00,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:00,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-12 14:37:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:00,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:00,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:01,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:01,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:37:01,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:37:01,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-12 14:37:01,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:37:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-12 14:37:01,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:01,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 663 proven. 27 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2020-10-12 14:37:01,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540419034] [2020-10-12 14:37:01,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:37:01,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 14:37:01,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110920879] [2020-10-12 14:37:01,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 14:37:01,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:37:01,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 14:37:01,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:37:01,560 INFO L87 Difference]: Start difference. First operand 4524 states and 5032 transitions. Second operand 6 states. [2020-10-12 14:37:03,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:37:03,892 INFO L93 Difference]: Finished difference Result 8377 states and 9408 transitions. [2020-10-12 14:37:03,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 14:37:03,893 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 839 [2020-10-12 14:37:03,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:37:03,910 INFO L225 Difference]: With dead ends: 8377 [2020-10-12 14:37:03,911 INFO L226 Difference]: Without dead ends: 4544 [2020-10-12 14:37:03,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:37:03,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4544 states. [2020-10-12 14:37:03,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4544 to 4524. [2020-10-12 14:37:03,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4524 states. [2020-10-12 14:37:04,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 4905 transitions. [2020-10-12 14:37:04,004 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 4905 transitions. Word has length 839 [2020-10-12 14:37:04,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:37:04,006 INFO L479 AbstractCegarLoop]: Abstraction has 4524 states and 4905 transitions. [2020-10-12 14:37:04,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 14:37:04,006 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 4905 transitions. [2020-10-12 14:37:04,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 889 [2020-10-12 14:37:04,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:37:04,023 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 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 14:37:04,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:37:04,024 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:37:04,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:37:04,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1692406017, now seen corresponding path program 1 times [2020-10-12 14:37:04,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:37:04,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474008785] [2020-10-12 14:37:04,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:37:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:04,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:04,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:04,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:08,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:09,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:09,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:09,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 906 [2020-10-12 14:37:09,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:37:09,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-12 14:37:09,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:09,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:09,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 380 [2020-10-12 14:37:09,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 14:37:09,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:09,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:37:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:09,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:09,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:09,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:37:09,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:09,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:37:09,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:09,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:09,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:09,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:09,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:09,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:37:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:09,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:09,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:09,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:37:09,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:09,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 14:37:09,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:09,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:09,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:09,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:09,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:09,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:37:09,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:09,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:09,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:09,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:37:09,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:09,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:37:09,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:09,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:37:09,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:09,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 14:37:09,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:09,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-12 14:37:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:09,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:09,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:09,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:37:09,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:09,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-12 14:37:09,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:09,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:09,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:37:09,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 14:37:09,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:09,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2020-10-12 14:37:09,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:09,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:09,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:09,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:37:09,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:09,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-12 14:37:09,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:09,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:09,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-12 14:37:09,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:09,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:09,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 764 [2020-10-12 14:37:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:09,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:09,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:09,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 14:37:09,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:09,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:37:09,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:09,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:09,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-12 14:37:09,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:09,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:10,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1366 backedges. 365 proven. 212 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2020-10-12 14:37:10,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474008785] [2020-10-12 14:37:10,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:37:10,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:37:10,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197360550] [2020-10-12 14:37:10,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:37:10,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:37:10,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:37:10,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:37:10,199 INFO L87 Difference]: Start difference. First operand 4524 states and 4905 transitions. Second operand 7 states. [2020-10-12 14:37:13,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:37:13,227 INFO L93 Difference]: Finished difference Result 9743 states and 10689 transitions. [2020-10-12 14:37:13,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:37:13,228 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 888 [2020-10-12 14:37:13,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:37:13,249 INFO L225 Difference]: With dead ends: 9743 [2020-10-12 14:37:13,250 INFO L226 Difference]: Without dead ends: 5910 [2020-10-12 14:37:13,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:37:13,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5910 states. [2020-10-12 14:37:13,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5910 to 5896. [2020-10-12 14:37:13,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5896 states. [2020-10-12 14:37:13,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5896 states to 5896 states and 6334 transitions. [2020-10-12 14:37:13,358 INFO L78 Accepts]: Start accepts. Automaton has 5896 states and 6334 transitions. Word has length 888 [2020-10-12 14:37:13,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:37:13,359 INFO L479 AbstractCegarLoop]: Abstraction has 5896 states and 6334 transitions. [2020-10-12 14:37:13,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:37:13,360 INFO L276 IsEmpty]: Start isEmpty. Operand 5896 states and 6334 transitions. [2020-10-12 14:37:13,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 952 [2020-10-12 14:37:13,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:37:13,377 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 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 14:37:13,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:37:13,378 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:37:13,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:37:13,378 INFO L82 PathProgramCache]: Analyzing trace with hash 752042646, now seen corresponding path program 1 times [2020-10-12 14:37:13,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:37:13,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366842764] [2020-10-12 14:37:13,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:37:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:13,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:13,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:14,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:17,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:17,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:18,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:18,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 969 [2020-10-12 14:37:18,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:37:18,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-12 14:37:18,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:18,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:18,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 938 [2020-10-12 14:37:18,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 14:37:18,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:18,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:37:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:18,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:18,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:18,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:37:18,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:18,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:37:18,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:18,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:18,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:18,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:18,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:18,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:37:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:18,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:18,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:18,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:37:18,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:18,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:37:18,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:18,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:18,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:18,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:18,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:18,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:37:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:18,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:18,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:18,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-12 14:37:18,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:18,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:37:18,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:18,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:18,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:18,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:18,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:18,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-12 14:37:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:18,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:18,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:18,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:37:18,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:18,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:37:18,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:18,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:18,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-12 14:37:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:18,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:18,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:18,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:37:18,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:18,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 14:37:18,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:18,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:18,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:18,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:18,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:18,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 827 [2020-10-12 14:37:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:18,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:19,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:19,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 14:37:19,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:19,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:37:19,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:19,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:37:19,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:19,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 14:37:19,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:19,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1521 backedges. 127 proven. 5 refuted. 0 times theorem prover too weak. 1389 trivial. 0 not checked. [2020-10-12 14:37:19,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366842764] [2020-10-12 14:37:19,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:37:19,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:37:19,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895041798] [2020-10-12 14:37:19,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:37:19,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:37:19,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:37:19,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:37:19,419 INFO L87 Difference]: Start difference. First operand 5896 states and 6334 transitions. Second operand 5 states. [2020-10-12 14:37:21,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:37:21,838 INFO L93 Difference]: Finished difference Result 12796 states and 13900 transitions. [2020-10-12 14:37:21,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:37:21,839 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 951 [2020-10-12 14:37:21,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:37:21,859 INFO L225 Difference]: With dead ends: 12796 [2020-10-12 14:37:21,859 INFO L226 Difference]: Without dead ends: 7589 [2020-10-12 14:37:21,869 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 14:37:21,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7589 states. [2020-10-12 14:37:21,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7589 to 7246. [2020-10-12 14:37:21,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7246 states. [2020-10-12 14:37:21,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7246 states to 7246 states and 7760 transitions. [2020-10-12 14:37:21,985 INFO L78 Accepts]: Start accepts. Automaton has 7246 states and 7760 transitions. Word has length 951 [2020-10-12 14:37:21,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:37:21,986 INFO L479 AbstractCegarLoop]: Abstraction has 7246 states and 7760 transitions. [2020-10-12 14:37:21,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:37:21,986 INFO L276 IsEmpty]: Start isEmpty. Operand 7246 states and 7760 transitions. [2020-10-12 14:37:22,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1288 [2020-10-12 14:37:22,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:37:22,013 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 14:37:22,013 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:37:22,013 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:37:22,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:37:22,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1562332858, now seen corresponding path program 1 times [2020-10-12 14:37:22,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:37:22,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918823956] [2020-10-12 14:37:22,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:37:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:22,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:22,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:22,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:23,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:27,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:27,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:27,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1311 [2020-10-12 14:37:27,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:37:27,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-12 14:37:27,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:27,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:37:27,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:37:27,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-12 14:37:27,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:27,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:37:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:27,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:27,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:27,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:37:27,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:27,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:37:27,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:27,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:37:27,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:27,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:37:27,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:27,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:37:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:27,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:27,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:27,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:27,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:37:27,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:37:27,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-12 14:37:27,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:27,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:27,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:37:27,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 248 [2020-10-12 14:37:27,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:28,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:37:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:28,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:28,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:28,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:37:28,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:28,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-12 14:37:28,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:28,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:28,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:37:28,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 14:37:28,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:28,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-12 14:37:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:28,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:28,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:28,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:37:28,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:28,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:37:28,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:28,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:28,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-12 14:37:28,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:28,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:28,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-12 14:37:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:28,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:28,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:28,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:37:28,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:28,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:37:28,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:28,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:28,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-12 14:37:28,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:28,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:28,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-12 14:37:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:28,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:28,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:28,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:37:28,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:28,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:37:28,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:28,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:28,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 14:37:28,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:28,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:28,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-12 14:37:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:28,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:28,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:28,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:37:28,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:28,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:37:28,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:28,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:28,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:37:28,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:28,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:28,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-12 14:37:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:28,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:28,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:28,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:37:28,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:28,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 14:37:28,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:28,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:28,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:37:28,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:28,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:29,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:37:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:29,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:29,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:29,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:37:29,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:29,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:37:29,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:29,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:29,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:29,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:29,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:32,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2875 backedges. 429 proven. 1378 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2020-10-12 14:37:32,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918823956] [2020-10-12 14:37:32,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:37:32,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:37:32,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830801273] [2020-10-12 14:37:32,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:37:32,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:37:32,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:37:32,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:37:32,050 INFO L87 Difference]: Start difference. First operand 7246 states and 7760 transitions. Second operand 8 states. [2020-10-12 14:37:34,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:37:34,561 INFO L93 Difference]: Finished difference Result 13813 states and 14828 transitions. [2020-10-12 14:37:34,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:37:34,561 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1287 [2020-10-12 14:37:34,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:37:34,580 INFO L225 Difference]: With dead ends: 13813 [2020-10-12 14:37:34,581 INFO L226 Difference]: Without dead ends: 7256 [2020-10-12 14:37:34,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:37:34,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7256 states. [2020-10-12 14:37:34,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7256 to 7246. [2020-10-12 14:37:34,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7246 states. [2020-10-12 14:37:34,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7246 states to 7246 states and 7758 transitions. [2020-10-12 14:37:34,697 INFO L78 Accepts]: Start accepts. Automaton has 7246 states and 7758 transitions. Word has length 1287 [2020-10-12 14:37:34,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:37:34,698 INFO L479 AbstractCegarLoop]: Abstraction has 7246 states and 7758 transitions. [2020-10-12 14:37:34,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:37:34,698 INFO L276 IsEmpty]: Start isEmpty. Operand 7246 states and 7758 transitions. [2020-10-12 14:37:34,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1322 [2020-10-12 14:37:34,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:37:34,725 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:37:34,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:37:34,726 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:37:34,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:37:34,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1782687858, now seen corresponding path program 1 times [2020-10-12 14:37:34,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:37:34,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825907712] [2020-10-12 14:37:34,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:37:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:35,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:35,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:35,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:35,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:39,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:39,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1347 [2020-10-12 14:37:39,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:37:39,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-12 14:37:39,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:39,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:39,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-12 14:37:39,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-12 14:37:39,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:37:40,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:37:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:40,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:40,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:40,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:37:40,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:40,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:37:40,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:40,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:40,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:40,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:40,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:40,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:37:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:40,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:40,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:40,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:37:40,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:40,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-12 14:37:40,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:40,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:37:40,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:40,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-12 14:37:40,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:40,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:37:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:40,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:40,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:40,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:37:40,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:40,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-12 14:37:40,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:40,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:40,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:37:40,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-12 14:37:40,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:40,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:37:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:40,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:40,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:40,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:37:40,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:40,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:37:40,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:40,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:40,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-12 14:37:40,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:40,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:40,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:37:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:40,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:40,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:40,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:37:40,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:40,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:37:40,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:40,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:40,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-12 14:37:40,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:40,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:40,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-12 14:37:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:40,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:40,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:40,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:37:40,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:40,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:37:40,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:40,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:40,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-12 14:37:40,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:40,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:40,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-12 14:37:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:40,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:40,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:40,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:37:40,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:40,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:37:40,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:40,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:40,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 14:37:40,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:40,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:40,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-12 14:37:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:40,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:40,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:40,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:37:40,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:40,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:37:40,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:40,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:40,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:37:40,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:40,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:40,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-12 14:37:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:40,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:40,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:40,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:37:40,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:40,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 14:37:40,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:40,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:40,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:37:40,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:40,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:40,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:37:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:40,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:40,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:40,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:37:40,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:40,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:37:40,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:40,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:40,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:40,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:40,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:41,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3543 backedges. 375 proven. 740 refuted. 0 times theorem prover too weak. 2428 trivial. 0 not checked. [2020-10-12 14:37:41,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825907712] [2020-10-12 14:37:41,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:37:41,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:37:41,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711887698] [2020-10-12 14:37:41,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:37:41,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:37:41,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:37:41,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:37:41,871 INFO L87 Difference]: Start difference. First operand 7246 states and 7758 transitions. Second operand 7 states. [2020-10-12 14:37:45,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:37:45,082 INFO L93 Difference]: Finished difference Result 15514 states and 16723 transitions. [2020-10-12 14:37:45,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:37:45,083 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1321 [2020-10-12 14:37:45,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:37:45,104 INFO L225 Difference]: With dead ends: 15514 [2020-10-12 14:37:45,104 INFO L226 Difference]: Without dead ends: 8611 [2020-10-12 14:37:45,117 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:37:45,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8611 states. [2020-10-12 14:37:45,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8611 to 8599. [2020-10-12 14:37:45,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8599 states. [2020-10-12 14:37:45,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8599 states to 8599 states and 9147 transitions. [2020-10-12 14:37:45,237 INFO L78 Accepts]: Start accepts. Automaton has 8599 states and 9147 transitions. Word has length 1321 [2020-10-12 14:37:45,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:37:45,238 INFO L479 AbstractCegarLoop]: Abstraction has 8599 states and 9147 transitions. [2020-10-12 14:37:45,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:37:45,238 INFO L276 IsEmpty]: Start isEmpty. Operand 8599 states and 9147 transitions. [2020-10-12 14:37:45,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1383 [2020-10-12 14:37:45,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:37:45,269 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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] [2020-10-12 14:37:45,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 14:37:45,270 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:37:45,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:37:45,270 INFO L82 PathProgramCache]: Analyzing trace with hash 176168807, now seen corresponding path program 1 times [2020-10-12 14:37:45,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:37:45,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062090868] [2020-10-12 14:37:45,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:37:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:45,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:45,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:46,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:47,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:50,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:50,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1408 [2020-10-12 14:37:50,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:37:50,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-12 14:37:50,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:50,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:50,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 676 [2020-10-12 14:37:50,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-12 14:37:50,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:50,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:37:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:50,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:50,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:50,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:37:50,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:50,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:37:50,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:50,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:50,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:50,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:50,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:50,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:37:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:50,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:50,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:50,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:37:50,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:50,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:37:50,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:50,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:50,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:50,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:50,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:50,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:37:50,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:50,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:50,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:50,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:37:50,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:50,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:37:50,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:50,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:50,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:50,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:50,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:50,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:37:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:50,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:50,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:50,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:37:50,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:50,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:37:50,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:50,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:50,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:37:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:50,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:50,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:50,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:37:50,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:50,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:37:50,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:50,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:37:50,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:50,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 14:37:50,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:50,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-12 14:37:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:50,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:50,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:50,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:37:50,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:50,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-12 14:37:50,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:50,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:50,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:37:50,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-12 14:37:50,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:51,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 812 [2020-10-12 14:37:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:51,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:51,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:51,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:37:51,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:51,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:37:51,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:51,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:51,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 14:37:51,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:51,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:51,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2020-10-12 14:37:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:51,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:51,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:51,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:37:51,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:51,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:37:51,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:37:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:51,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:51,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1064 [2020-10-12 14:37:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:51,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:51,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:51,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:37:51,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:51,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 14:37:51,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:51,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:51,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:37:51,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:51,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:51,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:37:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:51,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:51,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:51,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:37:51,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:51,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:37:51,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:51,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:52,101 INFO L134 CoverageAnalysis]: Checked inductivity of 3665 backedges. 729 proven. 389 refuted. 0 times theorem prover too weak. 2547 trivial. 0 not checked. [2020-10-12 14:37:52,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1062090868] [2020-10-12 14:37:52,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:37:52,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:37:52,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41037115] [2020-10-12 14:37:52,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:37:52,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:37:52,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:37:52,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:37:52,103 INFO L87 Difference]: Start difference. First operand 8599 states and 9147 transitions. Second operand 7 states. [2020-10-12 14:37:55,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:37:55,689 INFO L93 Difference]: Finished difference Result 20594 states and 22119 transitions. [2020-10-12 14:37:55,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:37:55,690 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1382 [2020-10-12 14:37:55,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:37:55,734 INFO L225 Difference]: With dead ends: 20594 [2020-10-12 14:37:55,734 INFO L226 Difference]: Without dead ends: 12679 [2020-10-12 14:37:55,751 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 14:37:55,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12679 states. [2020-10-12 14:37:55,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12679 to 12336. [2020-10-12 14:37:55,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12336 states. [2020-10-12 14:37:55,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12336 states to 12336 states and 13099 transitions. [2020-10-12 14:37:55,932 INFO L78 Accepts]: Start accepts. Automaton has 12336 states and 13099 transitions. Word has length 1382 [2020-10-12 14:37:55,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:37:55,933 INFO L479 AbstractCegarLoop]: Abstraction has 12336 states and 13099 transitions. [2020-10-12 14:37:55,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:37:55,934 INFO L276 IsEmpty]: Start isEmpty. Operand 12336 states and 13099 transitions. [2020-10-12 14:37:55,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1384 [2020-10-12 14:37:55,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:37:55,981 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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] [2020-10-12 14:37:55,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 14:37:55,982 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:37:55,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:37:55,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1868688874, now seen corresponding path program 1 times [2020-10-12 14:37:55,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:37:55,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634690120] [2020-10-12 14:37:55,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:37:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:56,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:56,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:56,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:01,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:01,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1409 [2020-10-12 14:38:01,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:38:01,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-12 14:38:01,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:01,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:38:01,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 677 [2020-10-12 14:38:01,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-12 14:38:01,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:01,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:38:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:01,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:01,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:01,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:38:01,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:01,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:38:01,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:01,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:01,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:01,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:01,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:01,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:38:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:01,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:01,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:01,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:38:01,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:01,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 14:38:01,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:01,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:01,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:01,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:01,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:01,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:38:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:01,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:01,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:01,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:38:01,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:01,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-12 14:38:01,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:01,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:01,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:01,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:01,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:01,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:38:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:01,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:01,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:01,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:38:01,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:01,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:38:01,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:01,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:01,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:01,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:01,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:01,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:38:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:01,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:01,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:01,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:38:01,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:01,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:38:01,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:01,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:38:01,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:01,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 14:38:01,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:01,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-12 14:38:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:01,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:01,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:01,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:38:01,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:01,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-12 14:38:01,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:01,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:38:01,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:38:01,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-12 14:38:01,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:01,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 813 [2020-10-12 14:38:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:02,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:02,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:02,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:38:02,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:02,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:38:02,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:02,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:02,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 14:38:02,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:02,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:02,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2020-10-12 14:38:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:02,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:02,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:02,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:38:02,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:02,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:38:02,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:02,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:02,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:38:02,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:02,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:02,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1065 [2020-10-12 14:38:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:02,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:02,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:02,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:38:02,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:02,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 14:38:02,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:02,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:02,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:38:02,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:02,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:02,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:38:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:02,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:02,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:02,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:38:02,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:02,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:38:02,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:02,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:02,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:02,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:02,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:03,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3672 backedges. 730 proven. 389 refuted. 0 times theorem prover too weak. 2553 trivial. 0 not checked. [2020-10-12 14:38:03,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634690120] [2020-10-12 14:38:03,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:38:03,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:38:03,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145715845] [2020-10-12 14:38:03,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:38:03,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:38:03,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:38:03,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:38:03,195 INFO L87 Difference]: Start difference. First operand 12336 states and 13099 transitions. Second operand 8 states. [2020-10-12 14:38:07,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:38:07,354 INFO L93 Difference]: Finished difference Result 26037 states and 27842 transitions. [2020-10-12 14:38:07,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 14:38:07,355 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1383 [2020-10-12 14:38:07,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:38:07,385 INFO L225 Difference]: With dead ends: 26037 [2020-10-12 14:38:07,385 INFO L226 Difference]: Without dead ends: 14385 [2020-10-12 14:38:07,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-12 14:38:07,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14385 states. [2020-10-12 14:38:07,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14385 to 14040. [2020-10-12 14:38:07,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14040 states. [2020-10-12 14:38:07,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14040 states to 14040 states and 14872 transitions. [2020-10-12 14:38:07,590 INFO L78 Accepts]: Start accepts. Automaton has 14040 states and 14872 transitions. Word has length 1383 [2020-10-12 14:38:07,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:38:07,591 INFO L479 AbstractCegarLoop]: Abstraction has 14040 states and 14872 transitions. [2020-10-12 14:38:07,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:38:07,591 INFO L276 IsEmpty]: Start isEmpty. Operand 14040 states and 14872 transitions. [2020-10-12 14:38:07,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1409 [2020-10-12 14:38:07,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:38:07,627 INFO L422 BasicCegarLoop]: trace histogram [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, 8, 8, 8, 8, 8, 8, 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, 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, 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, 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] [2020-10-12 14:38:07,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 14:38:07,627 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:38:07,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:38:07,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1105032595, now seen corresponding path program 1 times [2020-10-12 14:38:07,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:38:07,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550445138] [2020-10-12 14:38:07,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:38:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:07,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:08,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:08,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:08,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:12,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:12,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1434 [2020-10-12 14:38:12,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:38:12,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-12 14:38:12,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:12,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:38:12,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 605 [2020-10-12 14:38:12,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 14:38:12,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:12,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:38:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:12,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:12,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:12,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:38:12,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:12,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:38:12,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:12,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:12,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:12,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:12,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:12,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:38:13,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:13,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:13,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:13,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:38:13,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:13,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:38:13,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:13,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:13,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:13,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:13,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:13,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:38:13,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:13,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:13,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:13,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:38:13,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:13,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:38:13,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:13,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:13,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:13,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:13,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:13,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:38:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:13,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:13,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:13,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:38:13,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:13,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:38:13,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:13,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:38:13,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:13,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 14:38:13,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:13,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:38:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:13,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:13,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:13,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:38:13,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:13,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 14:38:13,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:13,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:38:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:38:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 14:38:13,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:13,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 694 [2020-10-12 14:38:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:13,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:13,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:13,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:38:13,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:13,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:38:13,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:13,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:13,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-12 14:38:13,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:13,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:13,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 838 [2020-10-12 14:38:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:13,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:13,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:13,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:38:13,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:13,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:38:13,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:13,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:13,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 14:38:13,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:13,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:13,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 980 [2020-10-12 14:38:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:13,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:13,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:13,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:38:13,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:13,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:38:13,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:38:13,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:13,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:13,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1090 [2020-10-12 14:38:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:13,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:13,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:13,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:38:13,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:13,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 14:38:13,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:13,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:13,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:38:13,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:13,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:13,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:38:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:13,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:13,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:13,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:38:13,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:13,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:38:13,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:13,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:13,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:13,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:13,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:14,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3847 backedges. 526 proven. 370 refuted. 0 times theorem prover too weak. 2951 trivial. 0 not checked. [2020-10-12 14:38:14,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550445138] [2020-10-12 14:38:14,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:38:14,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:38:14,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508148012] [2020-10-12 14:38:14,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:38:14,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:38:14,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:38:14,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:38:14,743 INFO L87 Difference]: Start difference. First operand 14040 states and 14872 transitions. Second operand 7 states. [2020-10-12 14:38:17,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:38:17,906 INFO L93 Difference]: Finished difference Result 28760 states and 30520 transitions. [2020-10-12 14:38:17,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 14:38:17,907 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1408 [2020-10-12 14:38:17,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:38:17,936 INFO L225 Difference]: With dead ends: 28760 [2020-10-12 14:38:17,936 INFO L226 Difference]: Without dead ends: 15404 [2020-10-12 14:38:17,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 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 14:38:17,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15404 states. [2020-10-12 14:38:18,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15404 to 15065. [2020-10-12 14:38:18,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15065 states. [2020-10-12 14:38:18,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15065 states to 15065 states and 15956 transitions. [2020-10-12 14:38:18,140 INFO L78 Accepts]: Start accepts. Automaton has 15065 states and 15956 transitions. Word has length 1408 [2020-10-12 14:38:18,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:38:18,140 INFO L479 AbstractCegarLoop]: Abstraction has 15065 states and 15956 transitions. [2020-10-12 14:38:18,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:38:18,141 INFO L276 IsEmpty]: Start isEmpty. Operand 15065 states and 15956 transitions. [2020-10-12 14:38:18,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1424 [2020-10-12 14:38:18,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:38:18,193 INFO L422 BasicCegarLoop]: trace histogram [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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 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, 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] [2020-10-12 14:38:18,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 14:38:18,194 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:38:18,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:38:18,194 INFO L82 PathProgramCache]: Analyzing trace with hash -901303670, now seen corresponding path program 1 times [2020-10-12 14:38:18,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:38:18,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [869877289] [2020-10-12 14:38:18,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:38:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:18,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:18,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:19,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:19,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:23,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:23,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1449 [2020-10-12 14:38:23,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:38:23,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-12 14:38:23,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:23,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:38:23,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 359 [2020-10-12 14:38:23,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-12 14:38:23,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:23,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:38:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:23,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:23,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:23,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:38:23,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:23,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:38:23,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:23,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:23,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:23,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:23,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:23,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:38:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:23,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:23,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:23,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:38:23,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:23,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:38:23,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:23,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:23,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:23,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:23,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:23,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:38:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:23,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:23,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:23,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:38:23,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:23,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:38:23,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:23,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:38:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 14:38:23,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:23,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-12 14:38:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:23,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:23,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:23,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-12 14:38:23,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:23,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-12 14:38:23,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:23,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:38:23,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:38:23,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-12 14:38:23,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:24,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2020-10-12 14:38:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:24,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:24,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:24,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 14:38:24,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:24,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:38:24,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:24,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:24,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-10-12 14:38:24,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:24,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:24,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 709 [2020-10-12 14:38:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:24,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:24,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:24,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:38:24,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:24,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:38:24,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:24,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:24,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-12 14:38:24,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:24,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:24,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 853 [2020-10-12 14:38:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:24,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:24,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:24,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:38:24,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:24,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:38:24,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:24,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:24,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 14:38:24,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:24,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:24,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 995 [2020-10-12 14:38:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:24,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:24,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:24,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:38:24,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:24,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:38:24,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:24,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:24,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:38:24,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:24,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:24,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1105 [2020-10-12 14:38:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:24,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:24,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:24,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:38:24,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:24,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 14:38:24,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:24,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:24,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:38:24,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:24,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:24,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:38:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:24,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:24,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:24,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:38:24,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:24,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:38:24,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:24,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:24,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:24,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:24,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:25,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3912 backedges. 550 proven. 737 refuted. 0 times theorem prover too weak. 2625 trivial. 0 not checked. [2020-10-12 14:38:25,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [869877289] [2020-10-12 14:38:25,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:38:25,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:38:25,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167883141] [2020-10-12 14:38:25,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:38:25,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:38:25,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:38:25,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:38:25,303 INFO L87 Difference]: Start difference. First operand 15065 states and 15956 transitions. Second operand 7 states. [2020-10-12 14:38:31,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:38:31,213 INFO L93 Difference]: Finished difference Result 32501 states and 34604 transitions. [2020-10-12 14:38:31,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:38:31,214 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1423 [2020-10-12 14:38:31,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:38:31,247 INFO L225 Difference]: With dead ends: 32501 [2020-10-12 14:38:31,247 INFO L226 Difference]: Without dead ends: 18120 [2020-10-12 14:38:31,265 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 14:38:31,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18120 states. [2020-10-12 14:38:31,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18120 to 17105. [2020-10-12 14:38:31,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17105 states. [2020-10-12 14:38:31,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17105 states to 17105 states and 18175 transitions. [2020-10-12 14:38:31,570 INFO L78 Accepts]: Start accepts. Automaton has 17105 states and 18175 transitions. Word has length 1423 [2020-10-12 14:38:31,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:38:31,571 INFO L479 AbstractCegarLoop]: Abstraction has 17105 states and 18175 transitions. [2020-10-12 14:38:31,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:38:31,571 INFO L276 IsEmpty]: Start isEmpty. Operand 17105 states and 18175 transitions. [2020-10-12 14:38:31,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1498 [2020-10-12 14:38:31,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:38:31,606 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-12 14:38:31,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 14:38:31,607 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:38:31,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:38:31,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1524059726, now seen corresponding path program 1 times [2020-10-12 14:38:31,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:38:31,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [94835202] [2020-10-12 14:38:31,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:38:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:31,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:32,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:34,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:34,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:36,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:36,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1521 [2020-10-12 14:38:36,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:38:36,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-12 14:38:36,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:38:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1077 [2020-10-12 14:38:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 411 [2020-10-12 14:38:36,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:37,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:38:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:37,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:37,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:37,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:38:37,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:37,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:38:37,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:37,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:37,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:37,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:37,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:37,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:38:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:37,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:37,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:37,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:38:37,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:37,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 14:38:37,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:37,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:37,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:37,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:37,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:37,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:38:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:37,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:37,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:37,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:38:37,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:37,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:38:37,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:37,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:37,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:37,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:37,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:37,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:38:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:37,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:37,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:37,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:38:37,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:37,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:38:37,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:37,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:37,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:37,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:37,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:37,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:38:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:37,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:37,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:37,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:38:37,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:37,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:38:37,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:37,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:37,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:37,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:37,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:37,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-12 14:38:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:37,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:37,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:37,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:38:37,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:37,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-12 14:38:37,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:37,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:38:37,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:37,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 14:38:37,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:37,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-12 14:38:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:37,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:37,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:37,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:37,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:38:37,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:38:37,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 14:38:37,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:38:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:38:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:38:37,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:37,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1179 [2020-10-12 14:38:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:37,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:38,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:38,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:38:38,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:38,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-12 14:38:38,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:38,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:38:38,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:38:38,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 298 [2020-10-12 14:38:38,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:38,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:38:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:38,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:38,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:38,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:38:38,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:38,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:38:38,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:38:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:38:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 14:38:38,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:40,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3685 backedges. 1890 proven. 6 refuted. 0 times theorem prover too weak. 1789 trivial. 0 not checked. [2020-10-12 14:38:40,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [94835202] [2020-10-12 14:38:40,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:38:40,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:38:40,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827387940] [2020-10-12 14:38:40,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 14:38:40,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:38:40,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 14:38:40,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:38:40,477 INFO L87 Difference]: Start difference. First operand 17105 states and 18175 transitions. Second operand 10 states. [2020-10-12 14:38:45,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:38:45,218 INFO L93 Difference]: Finished difference Result 33869 states and 36014 transitions. [2020-10-12 14:38:45,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 14:38:45,220 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1497 [2020-10-12 14:38:45,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:38:45,254 INFO L225 Difference]: With dead ends: 33869 [2020-10-12 14:38:45,255 INFO L226 Difference]: Without dead ends: 17448 [2020-10-12 14:38:45,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2020-10-12 14:38:45,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17448 states. [2020-10-12 14:38:45,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17448 to 17105. [2020-10-12 14:38:45,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17105 states. [2020-10-12 14:38:45,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17105 states to 17105 states and 18130 transitions. [2020-10-12 14:38:45,482 INFO L78 Accepts]: Start accepts. Automaton has 17105 states and 18130 transitions. Word has length 1497 [2020-10-12 14:38:45,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:38:45,483 INFO L479 AbstractCegarLoop]: Abstraction has 17105 states and 18130 transitions. [2020-10-12 14:38:45,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 14:38:45,483 INFO L276 IsEmpty]: Start isEmpty. Operand 17105 states and 18130 transitions. [2020-10-12 14:38:45,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1644 [2020-10-12 14:38:45,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:38:45,517 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:45,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 14:38:45,517 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:38:45,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:38:45,518 INFO L82 PathProgramCache]: Analyzing trace with hash -755189382, now seen corresponding path program 1 times [2020-10-12 14:38:45,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:38:45,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50078547] [2020-10-12 14:38:45,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:38:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:45,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:45,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:46,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:50,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:50,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1669 [2020-10-12 14:38:50,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:38:50,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5103 [2020-10-12 14:38:50,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:50,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:38:50,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 802 [2020-10-12 14:38:50,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-12 14:38:50,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:51,007 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-10-12 14:38:51,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:38:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:51,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:51,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:51,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:38:51,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:51,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:38:51,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:51,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:51,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:51,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:51,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:51,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:38:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:51,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:51,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:51,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:38:51,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:51,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:38:51,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:51,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:51,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:51,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:51,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:51,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:38:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:51,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:51,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:51,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:38:51,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:51,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:38:51,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:51,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:51,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:38:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:51,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:51,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:51,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:38:51,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:51,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:38:51,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:51,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:51,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:51,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:51,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:51,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:38:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:51,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:51,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:51,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:38:51,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:51,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-12 14:38:51,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:38:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-12 14:38:51,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:51,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-12 14:38:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:51,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:51,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:51,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:38:51,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:51,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-12 14:38:51,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:51,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:38:51,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:38:51,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-12 14:38:51,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:51,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-12 14:38:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:51,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:51,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:51,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:38:51,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:51,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:38:51,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:51,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:51,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-12 14:38:51,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:51,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:51,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1179 [2020-10-12 14:38:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:51,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:51,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:51,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:38:51,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:51,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:38:51,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:51,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:51,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-12 14:38:51,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:51,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:51,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1250 [2020-10-12 14:38:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:52,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:52,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:52,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-12 14:38:52,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:52,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 14:38:52,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-12 14:38:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:52,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:52,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1504 [2020-10-12 14:38:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:52,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:52,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:52,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 14:38:52,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:52,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:38:52,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:52,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:52,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-12 14:38:52,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:52,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:54,135 INFO L134 CoverageAnalysis]: Checked inductivity of 5090 backedges. 1069 proven. 543 refuted. 0 times theorem prover too weak. 3478 trivial. 0 not checked. [2020-10-12 14:38:54,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50078547] [2020-10-12 14:38:54,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:38:54,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:38:54,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111923597] [2020-10-12 14:38:54,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:38:54,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:38:54,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:38:54,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:38:54,137 INFO L87 Difference]: Start difference. First operand 17105 states and 18130 transitions. Second operand 7 states. [2020-10-12 14:38:57,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:38:57,471 INFO L93 Difference]: Finished difference Result 34218 states and 36319 transitions. [2020-10-12 14:38:57,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:38:57,472 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1643 [2020-10-12 14:38:57,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:38:57,505 INFO L225 Difference]: With dead ends: 34218 [2020-10-12 14:38:57,505 INFO L226 Difference]: Without dead ends: 17797 [2020-10-12 14:38:57,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:38:57,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17797 states. [2020-10-12 14:38:57,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17797 to 17785. [2020-10-12 14:38:57,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17785 states. [2020-10-12 14:38:57,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17785 states to 17785 states and 18836 transitions. [2020-10-12 14:38:57,709 INFO L78 Accepts]: Start accepts. Automaton has 17785 states and 18836 transitions. Word has length 1643 [2020-10-12 14:38:57,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:38:57,710 INFO L479 AbstractCegarLoop]: Abstraction has 17785 states and 18836 transitions. [2020-10-12 14:38:57,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:38:57,710 INFO L276 IsEmpty]: Start isEmpty. Operand 17785 states and 18836 transitions. [2020-10-12 14:38:57,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1678 [2020-10-12 14:38:57,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:38:57,742 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:57,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 14:38:57,743 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:38:57,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:38:57,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1158347410, now seen corresponding path program 1 times [2020-10-12 14:38:57,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:38:57,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820366922] [2020-10-12 14:38:57,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:38:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:57,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:58,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:58,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:58,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:59,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:02,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:02,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1705 [2020-10-12 14:39:02,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:39:02,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5074 [2020-10-12 14:39:02,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:02,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:39:02,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1046 [2020-10-12 14:39:02,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:39:02,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:03,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:39:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:03,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:03,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:03,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:39:03,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:03,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:39:03,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:03,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:03,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:39:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:03,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:03,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:03,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:39:03,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:03,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 14:39:03,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:03,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:03,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:03,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:03,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:03,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:39:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:03,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:03,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:03,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:39:03,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:03,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 14:39:03,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:03,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:03,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:39:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:03,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:03,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:03,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:39:03,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:03,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:39:03,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:03,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:03,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:39:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:03,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:03,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:03,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:39:03,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:03,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:39:03,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:03,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:03,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:03,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:03,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:03,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-12 14:39:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:03,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:03,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:03,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:39:03,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:03,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:39:03,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:03,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:03,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:03,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:03,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:03,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-12 14:39:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:03,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:03,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:03,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-12 14:39:03,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:03,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-12 14:39:03,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:03,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:39:03,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:03,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-12 14:39:03,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:03,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1034 [2020-10-12 14:39:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:03,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:03,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:03,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:39:03,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:03,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-12 14:39:03,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:03,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:39:03,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:39:03,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 14:39:03,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:39:03,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1144 [2020-10-12 14:39:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:03,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:03,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:03,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:39:03,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:03,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 14:39:03,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:03,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:03,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-12 14:39:03,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:03,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:04,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1359 [2020-10-12 14:39:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:04,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:04,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:04,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:39:04,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:04,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-12 14:39:04,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:04,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:04,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:39:04,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:04,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:04,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:39:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:04,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:04,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:04,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:39:04,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:04,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:39:04,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:04,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:04,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:04,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:04,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:05,620 INFO L134 CoverageAnalysis]: Checked inductivity of 5138 backedges. 891 proven. 216 refuted. 0 times theorem prover too weak. 4031 trivial. 0 not checked. [2020-10-12 14:39:05,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820366922] [2020-10-12 14:39:05,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:39:05,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:39:05,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706756141] [2020-10-12 14:39:05,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:39:05,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:39:05,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:39:05,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:39:05,623 INFO L87 Difference]: Start difference. First operand 17785 states and 18836 transitions. Second operand 7 states. [2020-10-12 14:39:10,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:39:10,625 INFO L93 Difference]: Finished difference Result 37257 states and 39529 transitions. [2020-10-12 14:39:10,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:39:10,626 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1677 [2020-10-12 14:39:10,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:39:10,653 INFO L225 Difference]: With dead ends: 37257 [2020-10-12 14:39:10,653 INFO L226 Difference]: Without dead ends: 20156 [2020-10-12 14:39:10,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:39:10,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20156 states. [2020-10-12 14:39:10,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20156 to 20154. [2020-10-12 14:39:10,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20154 states. [2020-10-12 14:39:10,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20154 states to 20154 states and 21195 transitions. [2020-10-12 14:39:10,879 INFO L78 Accepts]: Start accepts. Automaton has 20154 states and 21195 transitions. Word has length 1677 [2020-10-12 14:39:10,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:39:10,880 INFO L479 AbstractCegarLoop]: Abstraction has 20154 states and 21195 transitions. [2020-10-12 14:39:10,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:39:10,880 INFO L276 IsEmpty]: Start isEmpty. Operand 20154 states and 21195 transitions. [2020-10-12 14:39:10,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1714 [2020-10-12 14:39:10,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:39:10,916 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:39:10,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 14:39:10,916 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:39:10,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:39:10,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1106439186, now seen corresponding path program 1 times [2020-10-12 14:39:10,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:39:10,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1082528706] [2020-10-12 14:39:10,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:39:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:11,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:11,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:16,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:16,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1741 [2020-10-12 14:39:16,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:39:16,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 14:39:16,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:16,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:39:16,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1194 [2020-10-12 14:39:16,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-12 14:39:16,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:16,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:39:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:16,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:16,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:16,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:39:16,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:16,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:39:16,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:16,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:16,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:16,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:16,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:16,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:39:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:16,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:16,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:16,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:39:16,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:16,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 14:39:16,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:16,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:16,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:16,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:16,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:16,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:39:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:16,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:16,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:16,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-12 14:39:16,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:16,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:39:16,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:16,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:16,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:16,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:16,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:16,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-12 14:39:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:16,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:16,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:16,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-12 14:39:16,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:16,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 14:39:16,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:16,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:16,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:16,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:16,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:16,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2020-10-12 14:39:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:16,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:16,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:16,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-12 14:39:16,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:16,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 14:39:16,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:16,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:16,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:16,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:16,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:39:16,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-12 14:39:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:16,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:16,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:16,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:39:16,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:16,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:39:16,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:16,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:16,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:16,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:16,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:16,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 928 [2020-10-12 14:39:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:16,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:16,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:16,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:39:16,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:16,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:39:16,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:16,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:16,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:16,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:16,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:16,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-12 14:39:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:17,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:17,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:17,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:39:17,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:17,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:39:17,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:17,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:39:17,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:17,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 14:39:17,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:17,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1180 [2020-10-12 14:39:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:17,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:17,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:17,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:39:17,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:17,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-10-12 14:39:17,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:17,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:39:17,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:39:17,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-12 14:39:17,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:39:17,734 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-10-12 14:39:17,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1395 [2020-10-12 14:39:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:17,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:17,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:17,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:39:17,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:17,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-12 14:39:17,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:17,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:17,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:39:17,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:17,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:18,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:39:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:18,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:18,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:18,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:39:18,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:18,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:39:18,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:18,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:18,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:18,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:19,193 INFO L134 CoverageAnalysis]: Checked inductivity of 5677 backedges. 1389 proven. 214 refuted. 0 times theorem prover too weak. 4074 trivial. 0 not checked. [2020-10-12 14:39:19,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1082528706] [2020-10-12 14:39:19,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:39:19,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:39:19,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691546713] [2020-10-12 14:39:19,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:39:19,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:39:19,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:39:19,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:39:19,195 INFO L87 Difference]: Start difference. First operand 20154 states and 21195 transitions. Second operand 7 states. [2020-10-12 14:39:22,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:39:22,867 INFO L93 Difference]: Finished difference Result 40296 states and 42394 transitions. [2020-10-12 14:39:22,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:39:22,868 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1713 [2020-10-12 14:39:22,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:39:22,900 INFO L225 Difference]: With dead ends: 40296 [2020-10-12 14:39:22,900 INFO L226 Difference]: Without dead ends: 20828 [2020-10-12 14:39:22,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:39:22,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20828 states. [2020-10-12 14:39:23,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20828 to 19813. [2020-10-12 14:39:23,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19813 states. [2020-10-12 14:39:23,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19813 states to 19813 states and 20715 transitions. [2020-10-12 14:39:23,092 INFO L78 Accepts]: Start accepts. Automaton has 19813 states and 20715 transitions. Word has length 1713 [2020-10-12 14:39:23,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:39:23,093 INFO L479 AbstractCegarLoop]: Abstraction has 19813 states and 20715 transitions. [2020-10-12 14:39:23,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:39:23,093 INFO L276 IsEmpty]: Start isEmpty. Operand 19813 states and 20715 transitions. [2020-10-12 14:39:23,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2003 [2020-10-12 14:39:23,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:39:23,132 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:39:23,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 14:39:23,132 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:39:23,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:39:23,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1570613081, now seen corresponding path program 1 times [2020-10-12 14:39:23,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:39:23,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270588889] [2020-10-12 14:39:23,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:39:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:23,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:23,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:24,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:28,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:28,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:28,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2030 [2020-10-12 14:39:28,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:39:28,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5361 [2020-10-12 14:39:28,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:28,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:39:28,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1483 [2020-10-12 14:39:28,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-12 14:39:28,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:28,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:39:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:28,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:28,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:28,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:39:28,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:28,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:39:28,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:28,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:28,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:28,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:28,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:28,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:39:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:29,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:29,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:29,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:39:29,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:29,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 14:39:29,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:29,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:29,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:29,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:29,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:29,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:39:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:29,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:29,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:29,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:39:29,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:29,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:39:29,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:29,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:29,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:29,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:29,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:29,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:39:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:29,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:29,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:29,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:39:29,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:29,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:39:29,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:29,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:29,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:29,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:29,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:29,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:39:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:29,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:29,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:29,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:39:29,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:29,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:39:29,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:29,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:29,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:29,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:29,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:29,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-12 14:39:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:29,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:29,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:29,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-12 14:39:29,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:29,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:39:29,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:29,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:29,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:29,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:29,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:29,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 931 [2020-10-12 14:39:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:29,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:29,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:29,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:39:29,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:29,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:39:29,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:29,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:29,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1204 [2020-10-12 14:39:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:29,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:29,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:29,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-12 14:39:29,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:29,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-12 14:39:29,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:29,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:39:29,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:29,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 260 [2020-10-12 14:39:29,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:29,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1469 [2020-10-12 14:39:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:29,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:30,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:30,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:39:30,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:30,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 417 [2020-10-12 14:39:30,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:30,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:39:30,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:39:30,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-12 14:39:30,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:30,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1684 [2020-10-12 14:39:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:30,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:30,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:30,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:39:30,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:30,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-12 14:39:30,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:30,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:30,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:39:30,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:30,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:39:30,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:39:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:39:30,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:39:30,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:39:30,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:39:30,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:39:30,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:39:30,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:39:30,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:39:30,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:39:30,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:39:30,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0