/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 09:22:34,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 09:22:34,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 09:22:34,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 09:22:34,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 09:22:34,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 09:22:34,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 09:22:34,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 09:22:34,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 09:22:34,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 09:22:34,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 09:22:34,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 09:22:34,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 09:22:34,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 09:22:34,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 09:22:34,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 09:22:34,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 09:22:34,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 09:22:34,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 09:22:34,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 09:22:34,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 09:22:34,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 09:22:34,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 09:22:34,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 09:22:34,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 09:22:34,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 09:22:34,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 09:22:34,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 09:22:34,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 09:22:34,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 09:22:34,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 09:22:34,858 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 09:22:34,859 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 09:22:34,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 09:22:34,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 09:22:34,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 09:22:34,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 09:22:34,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 09:22:34,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 09:22:34,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 09:22:34,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 09:22:34,867 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 09:22:34,904 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 09:22:34,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 09:22:34,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 09:22:34,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 09:22:34,908 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 09:22:34,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 09:22:34,908 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 09:22:34,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 09:22:34,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 09:22:34,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 09:22:34,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 09:22:34,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 09:22:34,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 09:22:34,910 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 09:22:34,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 09:22:34,912 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 09:22:34,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 09:22:34,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 09:22:34,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 09:22:34,912 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 09:22:34,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 09:22:34,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 09:22:34,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 09:22:34,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 09:22:34,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 09:22:34,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 09:22:34,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 09:22:34,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 09:22:34,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 09:22:34,914 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 09:22:35,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 09:22:35,244 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 09:22:35,248 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 09:22:35,249 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 09:22:35,250 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 09:22:35,250 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label43.c [2020-10-13 09:22:35,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9205bba42/c0fe3f194e3042fea924242d150eb222/FLAGb0b1da546 [2020-10-13 09:22:35,980 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 09:22:35,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label43.c [2020-10-13 09:22:36,002 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9205bba42/c0fe3f194e3042fea924242d150eb222/FLAGb0b1da546 [2020-10-13 09:22:36,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9205bba42/c0fe3f194e3042fea924242d150eb222 [2020-10-13 09:22:36,109 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 09:22:36,111 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 09:22:36,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 09:22:36,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 09:22:36,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 09:22:36,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:22:36" (1/1) ... [2020-10-13 09:22:36,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bbd1661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:36, skipping insertion in model container [2020-10-13 09:22:36,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:22:36" (1/1) ... [2020-10-13 09:22:36,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 09:22:36,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 09:22:37,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 09:22:37,113 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 09:22:37,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 09:22:37,416 INFO L208 MainTranslator]: Completed translation [2020-10-13 09:22:37,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:37 WrapperNode [2020-10-13 09:22:37,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 09:22:37,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 09:22:37,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 09:22:37,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 09:22:37,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:37" (1/1) ... [2020-10-13 09:22:37,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:37" (1/1) ... [2020-10-13 09:22:37,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:37" (1/1) ... [2020-10-13 09:22:37,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:37" (1/1) ... [2020-10-13 09:22:37,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:37" (1/1) ... [2020-10-13 09:22:37,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:37" (1/1) ... [2020-10-13 09:22:37,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:37" (1/1) ... [2020-10-13 09:22:37,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 09:22:37,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 09:22:37,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 09:22:37,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 09:22:37,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:37" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 09:22:37,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 09:22:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 09:22:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 09:22:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-13 09:22:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 09:22:37,725 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 09:22:37,726 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-13 09:22:37,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 09:22:37,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 09:22:37,727 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 09:22:37,728 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 09:22:37,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 09:22:37,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 09:22:40,288 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 09:22:40,288 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 09:22:40,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:22:40 BoogieIcfgContainer [2020-10-13 09:22:40,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 09:22:40,297 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 09:22:40,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 09:22:40,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 09:22:40,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:22:36" (1/3) ... [2020-10-13 09:22:40,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f5e4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:22:40, skipping insertion in model container [2020-10-13 09:22:40,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:37" (2/3) ... [2020-10-13 09:22:40,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f5e4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:22:40, skipping insertion in model container [2020-10-13 09:22:40,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:22:40" (3/3) ... [2020-10-13 09:22:40,306 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label43.c [2020-10-13 09:22:40,318 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 09:22:40,327 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 09:22:40,343 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 09:22:40,373 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 09:22:40,373 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 09:22:40,373 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 09:22:40,373 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 09:22:40,374 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 09:22:40,374 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 09:22:40,374 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 09:22:40,374 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 09:22:40,403 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-13 09:22:40,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-13 09:22:40,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:22:40,411 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:22:40,411 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:22:40,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:22:40,419 INFO L82 PathProgramCache]: Analyzing trace with hash 522953842, now seen corresponding path program 1 times [2020-10-13 09:22:40,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:22:40,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793097226] [2020-10-13 09:22:40,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:22:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:22:40,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:22:40,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:22:40,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 09:22:40,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:22:40,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-13 09:22:40,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:22:40,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 09:22:40,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 09:22:40,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 09:22:40,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 09:22:40,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:22:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:22:40,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:22:40,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:22:40,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:22:40,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:22:40,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 09:22:40,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:22:40,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:22:40,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:22:40,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 09:22:40,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:22:40,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 09:22:40,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [793097226] [2020-10-13 09:22:40,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 09:22:40,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 09:22:40,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804407203] [2020-10-13 09:22:40,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 09:22:40,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:22:40,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 09:22:40,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 09:22:40,975 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-13 09:22:44,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:22:44,615 INFO L93 Difference]: Finished difference Result 1169 states and 2165 transitions. [2020-10-13 09:22:44,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 09:22:44,618 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-13 09:22:44,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:22:44,640 INFO L225 Difference]: With dead ends: 1169 [2020-10-13 09:22:44,640 INFO L226 Difference]: Without dead ends: 696 [2020-10-13 09:22:44,651 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 [2020-10-13 09:22:44,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-13 09:22:44,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-13 09:22:44,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-13 09:22:44,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1077 transitions. [2020-10-13 09:22:44,748 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1077 transitions. Word has length 15 [2020-10-13 09:22:44,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:22:44,748 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1077 transitions. [2020-10-13 09:22:44,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 09:22:44,749 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1077 transitions. [2020-10-13 09:22:44,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-13 09:22:44,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:22:44,753 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 09:22:44,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 09:22:44,754 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:22:44,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:22:44,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1084494261, now seen corresponding path program 1 times [2020-10-13 09:22:44,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:22:44,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [860154705] [2020-10-13 09:22:44,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:22:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:22:44,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:22:45,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:22:45,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:22:45,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 09:22:45,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 09:22:45,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 784 [2020-10-13 09:22:45,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:22:45,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:22:45,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-13 09:22:45,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 09:22:45,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 09:22:45,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:22:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:22:45,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:22:45,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:22:45,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:22:45,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:22:45,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 09:22:45,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:22:45,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:22:45,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:22:45,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:22:45,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 09:22:45,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:22:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:22:45,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:22:45,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:22:45,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 09:22:45,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:22:45,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 09:22:45,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:22:45,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:22:45,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:22:45,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 09:22:45,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:22:45,856 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 09:22:45,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [860154705] [2020-10-13 09:22:45,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:22:45,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 09:22:45,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129285232] [2020-10-13 09:22:45,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 09:22:45,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:22:45,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 09:22:45,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 09:22:45,861 INFO L87 Difference]: Start difference. First operand 689 states and 1077 transitions. Second operand 5 states. [2020-10-13 09:22:49,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:22:49,254 INFO L93 Difference]: Finished difference Result 1721 states and 2777 transitions. [2020-10-13 09:22:49,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 09:22:49,256 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 90 [2020-10-13 09:22:49,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:22:49,264 INFO L225 Difference]: With dead ends: 1721 [2020-10-13 09:22:49,264 INFO L226 Difference]: Without dead ends: 1038 [2020-10-13 09:22:49,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 09:22:49,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-13 09:22:49,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1034. [2020-10-13 09:22:49,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2020-10-13 09:22:49,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1496 transitions. [2020-10-13 09:22:49,329 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1496 transitions. Word has length 90 [2020-10-13 09:22:49,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:22:49,330 INFO L479 AbstractCegarLoop]: Abstraction has 1034 states and 1496 transitions. [2020-10-13 09:22:49,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 09:22:49,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1496 transitions. [2020-10-13 09:22:49,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-13 09:22:49,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:22:49,342 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:22:49,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 09:22:49,344 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:22:49,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:22:49,345 INFO L82 PathProgramCache]: Analyzing trace with hash -100641285, now seen corresponding path program 1 times [2020-10-13 09:22:49,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:22:49,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095166650] [2020-10-13 09:22:49,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:22:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:22:49,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:22:49,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:22:50,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:22:50,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:22:50,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:22:53,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:22:53,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-10-13 09:22:53,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 09:22:53,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4583 [2020-10-13 09:22:53,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:22:53,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:22:53,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-10-13 09:22:53,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 09:22:53,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:22:54,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:22:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:22:54,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:22:54,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:22:54,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:22:54,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:22:54,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:22:54,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:22:54,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:22:54,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:22:54,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:22:54,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:22:54,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:22:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:22:54,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:22:54,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:22:54,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 09:22:54,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:22:54,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 09:22:54,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:22:54,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:22:54,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:22:54,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:22:54,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:22:54,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-13 09:22:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:22:54,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:22:54,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:22:54,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:22:54,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:22:54,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-13 09:22:54,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:22:54,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:22:54,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:22:54,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-13 09:22:54,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:22:54,482 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-13 09:22:54,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095166650] [2020-10-13 09:22:54,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:22:54,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 09:22:54,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281682794] [2020-10-13 09:22:54,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 09:22:54,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:22:54,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 09:22:54,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 09:22:54,486 INFO L87 Difference]: Start difference. First operand 1034 states and 1496 transitions. Second operand 6 states. [2020-10-13 09:22:59,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:22:59,010 INFO L93 Difference]: Finished difference Result 2408 states and 3616 transitions. [2020-10-13 09:22:59,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 09:22:59,012 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 200 [2020-10-13 09:22:59,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:22:59,022 INFO L225 Difference]: With dead ends: 2408 [2020-10-13 09:22:59,022 INFO L226 Difference]: Without dead ends: 1380 [2020-10-13 09:22:59,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-13 09:22:59,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-10-13 09:22:59,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1376. [2020-10-13 09:22:59,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2020-10-13 09:22:59,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1967 transitions. [2020-10-13 09:22:59,068 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1967 transitions. Word has length 200 [2020-10-13 09:22:59,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:22:59,069 INFO L479 AbstractCegarLoop]: Abstraction has 1376 states and 1967 transitions. [2020-10-13 09:22:59,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 09:22:59,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1967 transitions. [2020-10-13 09:22:59,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-10-13 09:22:59,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:22:59,076 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 09:22:59,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 09:22:59,077 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:22:59,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:22:59,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1089357657, now seen corresponding path program 1 times [2020-10-13 09:22:59,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:22:59,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463936944] [2020-10-13 09:22:59,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:22:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:22:59,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:22:59,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:22:59,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:01,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:01,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:01,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:02,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:04,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:04,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-13 09:23:04,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 09:23:04,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-13 09:23:04,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:23:04,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 291 [2020-10-13 09:23:04,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 09:23:04,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:04,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:23:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:04,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:04,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:04,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:23:04,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:04,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:23:04,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:04,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:04,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:04,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:04,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:04,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:23:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:04,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:04,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:04,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 09:23:04,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:04,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 09:23:04,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:04,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:04,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:04,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:04,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:04,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-13 09:23:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:04,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:04,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:04,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:23:04,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:04,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 09:23:04,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:04,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:04,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:04,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:04,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:04,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-13 09:23:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:04,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:04,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:04,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 09:23:04,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:04,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 09:23:04,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:04,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:23:04,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:04,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 09:23:04,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:04,562 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2020-10-13 09:23:04,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463936944] [2020-10-13 09:23:04,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:23:04,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 09:23:04,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951669648] [2020-10-13 09:23:04,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 09:23:04,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:23:04,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 09:23:04,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 09:23:04,567 INFO L87 Difference]: Start difference. First operand 1376 states and 1967 transitions. Second operand 5 states. [2020-10-13 09:23:07,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:23:07,775 INFO L93 Difference]: Finished difference Result 4118 states and 5955 transitions. [2020-10-13 09:23:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 09:23:07,783 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 292 [2020-10-13 09:23:07,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:23:07,798 INFO L225 Difference]: With dead ends: 4118 [2020-10-13 09:23:07,798 INFO L226 Difference]: Without dead ends: 2748 [2020-10-13 09:23:07,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 09:23:07,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2020-10-13 09:23:07,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 2744. [2020-10-13 09:23:07,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2744 states. [2020-10-13 09:23:07,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2744 states to 2744 states and 3548 transitions. [2020-10-13 09:23:07,921 INFO L78 Accepts]: Start accepts. Automaton has 2744 states and 3548 transitions. Word has length 292 [2020-10-13 09:23:07,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:23:07,922 INFO L479 AbstractCegarLoop]: Abstraction has 2744 states and 3548 transitions. [2020-10-13 09:23:07,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 09:23:07,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2744 states and 3548 transitions. [2020-10-13 09:23:07,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2020-10-13 09:23:07,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:23:07,935 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:23:07,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 09:23:07,935 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:23:07,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:23:07,936 INFO L82 PathProgramCache]: Analyzing trace with hash 962503219, now seen corresponding path program 1 times [2020-10-13 09:23:07,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:23:07,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [491264226] [2020-10-13 09:23:07,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:23:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:08,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:08,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:08,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:10,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:10,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:11,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:13,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:13,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 494 [2020-10-13 09:23:13,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 09:23:13,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-13 09:23:13,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:13,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:23:13,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 479 [2020-10-13 09:23:13,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 09:23:13,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 09:23:13,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:23:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:13,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:13,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:13,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:23:13,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:13,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 09:23:13,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:13,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:13,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:13,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:13,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:13,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:23:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:13,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:13,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:13,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 09:23:13,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:13,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 09:23:13,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:13,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:13,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:13,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:13,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:13,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 09:23:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:13,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:13,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:13,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-13 09:23:13,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:13,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 09:23:13,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:13,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:13,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:13,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:13,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:13,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-10-13 09:23:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:13,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:13,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:13,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-13 09:23:13,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:13,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-13 09:23:13,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:13,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:23:13,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:13,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-13 09:23:13,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 09:23:14,047 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2020-10-13 09:23:14,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [491264226] [2020-10-13 09:23:14,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:23:14,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 09:23:14,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926755378] [2020-10-13 09:23:14,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 09:23:14,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:23:14,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 09:23:14,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 09:23:14,052 INFO L87 Difference]: Start difference. First operand 2744 states and 3548 transitions. Second operand 5 states. [2020-10-13 09:23:18,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:23:18,200 INFO L93 Difference]: Finished difference Result 8213 states and 10731 transitions. [2020-10-13 09:23:18,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 09:23:18,207 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 480 [2020-10-13 09:23:18,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:23:18,237 INFO L225 Difference]: With dead ends: 8213 [2020-10-13 09:23:18,238 INFO L226 Difference]: Without dead ends: 5475 [2020-10-13 09:23:18,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 09:23:18,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5475 states. [2020-10-13 09:23:18,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5475 to 5471. [2020-10-13 09:23:18,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5471 states. [2020-10-13 09:23:18,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 7057 transitions. [2020-10-13 09:23:18,425 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 7057 transitions. Word has length 480 [2020-10-13 09:23:18,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:23:18,426 INFO L479 AbstractCegarLoop]: Abstraction has 5471 states and 7057 transitions. [2020-10-13 09:23:18,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 09:23:18,426 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 7057 transitions. [2020-10-13 09:23:18,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2020-10-13 09:23:18,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:23:18,451 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:23:18,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 09:23:18,452 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:23:18,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:23:18,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1405618438, now seen corresponding path program 1 times [2020-10-13 09:23:18,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:23:18,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495994224] [2020-10-13 09:23:18,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:23:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:18,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:18,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:19,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:20,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:20,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:21,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:23,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:23,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:23,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 509 [2020-10-13 09:23:23,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 09:23:23,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-13 09:23:23,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:23:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 494 [2020-10-13 09:23:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 09:23:23,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:23,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:23:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:23,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:23,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:23,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:23:23,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:23,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:23:23,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:23,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:23,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:23,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:23,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:23,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:23:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:23,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:23,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:23,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 09:23:23,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:23,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 09:23:23,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:23,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:23,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:23,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:23,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:23,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 09:23:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:23,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:23,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:23,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-13 09:23:23,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:23,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-13 09:23:23,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:23,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:23,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:23,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:23,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:24,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-10-13 09:23:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:24,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:24,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:24,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 09:23:24,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:24,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 09:23:24,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:24,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:23:24,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:24,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 09:23:24,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 09:23:24,257 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2020-10-13 09:23:24,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495994224] [2020-10-13 09:23:24,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:23:24,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 09:23:24,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557597644] [2020-10-13 09:23:24,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 09:23:24,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:23:24,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 09:23:24,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 09:23:24,260 INFO L87 Difference]: Start difference. First operand 5471 states and 7057 transitions. Second operand 5 states. [2020-10-13 09:23:28,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:23:28,263 INFO L93 Difference]: Finished difference Result 13658 states and 18216 transitions. [2020-10-13 09:23:28,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 09:23:28,266 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 495 [2020-10-13 09:23:28,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:23:28,310 INFO L225 Difference]: With dead ends: 13658 [2020-10-13 09:23:28,311 INFO L226 Difference]: Without dead ends: 8193 [2020-10-13 09:23:28,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 09:23:28,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8193 states. [2020-10-13 09:23:28,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8193 to 8189. [2020-10-13 09:23:28,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8189 states. [2020-10-13 09:23:28,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8189 states to 8189 states and 10459 transitions. [2020-10-13 09:23:28,560 INFO L78 Accepts]: Start accepts. Automaton has 8189 states and 10459 transitions. Word has length 495 [2020-10-13 09:23:28,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:23:28,561 INFO L479 AbstractCegarLoop]: Abstraction has 8189 states and 10459 transitions. [2020-10-13 09:23:28,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 09:23:28,561 INFO L276 IsEmpty]: Start isEmpty. Operand 8189 states and 10459 transitions. [2020-10-13 09:23:28,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2020-10-13 09:23:28,588 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:23:28,589 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:23:28,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 09:23:28,590 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:23:28,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:23:28,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1302124018, now seen corresponding path program 1 times [2020-10-13 09:23:28,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:23:28,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318625619] [2020-10-13 09:23:28,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:23:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:28,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:28,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:29,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:29,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:31,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:32,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:32,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:33,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:33,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 559 [2020-10-13 09:23:33,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 09:23:33,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-13 09:23:33,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:33,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:23:33,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 470 [2020-10-13 09:23:33,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 09:23:33,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:33,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:23:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:33,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:33,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:33,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:23:33,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:33,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:23:33,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:33,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:33,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:33,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:33,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:33,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:23:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:33,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:33,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:33,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 09:23:33,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:33,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 09:23:33,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:33,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:33,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:33,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:33,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:33,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 09:23:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:33,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:33,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:33,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-13 09:23:33,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:33,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-13 09:23:33,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:33,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:33,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:33,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:33,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:34,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-10-13 09:23:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:34,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:34,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:34,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 09:23:34,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:34,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 09:23:34,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:34,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:23:34,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:34,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 09:23:34,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:34,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2020-10-13 09:23:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:34,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:34,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:34,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:34,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 09:23:34,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 09:23:34,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 09:23:34,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:34,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:23:34,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:23:34,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-13 09:23:34,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:34,629 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 249 proven. 2 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-10-13 09:23:34,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1318625619] [2020-10-13 09:23:34,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:23:34,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:23:34,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855764233] [2020-10-13 09:23:34,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:23:34,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:23:34,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:23:34,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:23:34,635 INFO L87 Difference]: Start difference. First operand 8189 states and 10459 transitions. Second operand 7 states. [2020-10-13 09:23:37,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:23:37,985 INFO L93 Difference]: Finished difference Result 16648 states and 22102 transitions. [2020-10-13 09:23:37,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 09:23:37,986 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 543 [2020-10-13 09:23:37,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:23:38,041 INFO L225 Difference]: With dead ends: 16648 [2020-10-13 09:23:38,041 INFO L226 Difference]: Without dead ends: 8436 [2020-10-13 09:23:38,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-13 09:23:38,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8436 states. [2020-10-13 09:23:38,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8436 to 8212. [2020-10-13 09:23:38,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8212 states. [2020-10-13 09:23:38,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8212 states to 8212 states and 10503 transitions. [2020-10-13 09:23:38,415 INFO L78 Accepts]: Start accepts. Automaton has 8212 states and 10503 transitions. Word has length 543 [2020-10-13 09:23:38,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:23:38,416 INFO L479 AbstractCegarLoop]: Abstraction has 8212 states and 10503 transitions. [2020-10-13 09:23:38,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:23:38,416 INFO L276 IsEmpty]: Start isEmpty. Operand 8212 states and 10503 transitions. [2020-10-13 09:23:38,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2020-10-13 09:23:38,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:23:38,435 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:23:38,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 09:23:38,435 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:23:38,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:23:38,436 INFO L82 PathProgramCache]: Analyzing trace with hash -17899017, now seen corresponding path program 1 times [2020-10-13 09:23:38,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:23:38,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129554771] [2020-10-13 09:23:38,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:23:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:38,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:38,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:39,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:39,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:40,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:41,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:42,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:43,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:43,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:43,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 568 [2020-10-13 09:23:43,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 09:23:43,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 09:23:43,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:43,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:23:43,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 479 [2020-10-13 09:23:43,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 09:23:43,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:43,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:23:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:43,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:43,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:43,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:23:43,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:43,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:23:43,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:43,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:43,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:43,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:43,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:43,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:23:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:43,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:43,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:43,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 09:23:43,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:43,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 09:23:43,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:43,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:43,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:43,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:43,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:43,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 09:23:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:43,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:43,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:43,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-13 09:23:43,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:43,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 09:23:43,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:43,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:43,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:43,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:43,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:43,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-10-13 09:23:43,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:43,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:43,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:43,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-13 09:23:43,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:43,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 09:23:43,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:43,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:23:43,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:43,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-13 09:23:43,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:43,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2020-10-13 09:23:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:43,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:43,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:44,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:44,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 09:23:44,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 09:23:44,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 09:23:44,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:44,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:23:44,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:23:44,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-13 09:23:44,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 249 proven. 2 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2020-10-13 09:23:44,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129554771] [2020-10-13 09:23:44,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:23:44,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:23:44,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137883394] [2020-10-13 09:23:44,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:23:44,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:23:44,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:23:44,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:23:44,703 INFO L87 Difference]: Start difference. First operand 8212 states and 10503 transitions. Second operand 7 states. [2020-10-13 09:23:48,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:23:48,242 INFO L93 Difference]: Finished difference Result 16497 states and 21170 transitions. [2020-10-13 09:23:48,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 09:23:48,247 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 552 [2020-10-13 09:23:48,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:23:48,287 INFO L225 Difference]: With dead ends: 16497 [2020-10-13 09:23:48,287 INFO L226 Difference]: Without dead ends: 8259 [2020-10-13 09:23:48,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 09:23:48,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8259 states. [2020-10-13 09:23:48,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8259 to 8216. [2020-10-13 09:23:48,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8216 states. [2020-10-13 09:23:48,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8216 states to 8216 states and 10505 transitions. [2020-10-13 09:23:48,589 INFO L78 Accepts]: Start accepts. Automaton has 8216 states and 10505 transitions. Word has length 552 [2020-10-13 09:23:48,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:23:48,590 INFO L479 AbstractCegarLoop]: Abstraction has 8216 states and 10505 transitions. [2020-10-13 09:23:48,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:23:48,590 INFO L276 IsEmpty]: Start isEmpty. Operand 8216 states and 10505 transitions. [2020-10-13 09:23:48,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2020-10-13 09:23:48,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:23:48,610 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:23:48,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 09:23:48,611 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:23:48,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:23:48,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1179838503, now seen corresponding path program 1 times [2020-10-13 09:23:48,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:23:48,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1904944606] [2020-10-13 09:23:48,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:23:48,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:48,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:48,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:48,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:50,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:50,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:50,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:50,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:52,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:52,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:53,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:53,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 604 [2020-10-13 09:23:53,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 09:23:53,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 09:23:53,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:53,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:23:53,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-13 09:23:53,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 09:23:53,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:53,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:23:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:53,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:53,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:53,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:23:53,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:53,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:23:53,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:53,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:53,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:53,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:53,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:53,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:23:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:53,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:53,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:53,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 09:23:53,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:53,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-13 09:23:53,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:53,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:23:53,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:53,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 09:23:53,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:54,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 09:23:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:54,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:54,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:54,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:54,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 09:23:54,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 09:23:54,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-13 09:23:54,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:54,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:23:54,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:23:54,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 09:23:54,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:54,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-13 09:23:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:54,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:54,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:54,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:23:54,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:54,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 09:23:54,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:54,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:54,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 09:23:54,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:54,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:54,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2020-10-13 09:23:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:54,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:54,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:54,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-13 09:23:54,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:54,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-13 09:23:54,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:54,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:54,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-13 09:23:54,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:54,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 09:23:54,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2020-10-13 09:23:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:54,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:54,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:54,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 09:23:54,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:54,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 09:23:54,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:54,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:23:54,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 09:23:54,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:23:54,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 09:23:55,177 INFO L134 CoverageAnalysis]: Checked inductivity of 869 backedges. 132 proven. 231 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2020-10-13 09:23:55,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1904944606] [2020-10-13 09:23:55,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:23:55,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:23:55,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27309740] [2020-10-13 09:23:55,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:23:55,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:23:55,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:23:55,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:23:55,186 INFO L87 Difference]: Start difference. First operand 8216 states and 10505 transitions. Second operand 7 states. [2020-10-13 09:24:00,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:24:00,424 INFO L93 Difference]: Finished difference Result 21367 states and 28162 transitions. [2020-10-13 09:24:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 09:24:00,426 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 586 [2020-10-13 09:24:00,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:24:00,481 INFO L225 Difference]: With dead ends: 21367 [2020-10-13 09:24:00,482 INFO L226 Difference]: Without dead ends: 13080 [2020-10-13 09:24:00,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 09:24:00,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13080 states. [2020-10-13 09:24:00,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13080 to 13072. [2020-10-13 09:24:00,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13072 states. [2020-10-13 09:24:00,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13072 states to 13072 states and 16364 transitions. [2020-10-13 09:24:00,984 INFO L78 Accepts]: Start accepts. Automaton has 13072 states and 16364 transitions. Word has length 586 [2020-10-13 09:24:00,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:24:00,985 INFO L479 AbstractCegarLoop]: Abstraction has 13072 states and 16364 transitions. [2020-10-13 09:24:00,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:24:00,986 INFO L276 IsEmpty]: Start isEmpty. Operand 13072 states and 16364 transitions. [2020-10-13 09:24:01,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2020-10-13 09:24:01,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:24:01,033 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:24:01,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 09:24:01,034 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:24:01,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:24:01,034 INFO L82 PathProgramCache]: Analyzing trace with hash -218848241, now seen corresponding path program 1 times [2020-10-13 09:24:01,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:24:01,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499795168] [2020-10-13 09:24:01,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:24:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:01,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:01,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:01,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:01,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:02,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:04,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:06,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:06,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 624 [2020-10-13 09:24:06,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 09:24:06,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-13 09:24:06,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:06,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 09:24:06,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 121 [2020-10-13 09:24:06,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-13 09:24:06,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:06,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:24:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:06,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:06,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:06,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:24:06,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:06,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 09:24:06,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:06,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:06,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:06,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:06,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:06,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:24:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:06,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:06,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:06,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-13 09:24:06,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:06,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 09:24:06,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:06,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:24:06,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:06,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-13 09:24:06,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:06,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-13 09:24:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:06,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:06,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:06,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:06,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 09:24:06,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 09:24:06,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-13 09:24:06,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:06,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 09:24:06,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:24:06,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 09:24:06,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:06,784 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-10-13 09:24:06,947 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-10-13 09:24:07,128 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-10-13 09:24:07,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-10-13 09:24:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:07,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:07,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:07,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:24:07,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:07,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 09:24:07,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:07,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:07,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 09:24:07,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:07,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:07,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2020-10-13 09:24:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:07,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:07,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:07,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-13 09:24:07,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:07,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 09:24:07,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:07,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:07,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-13 09:24:07,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:07,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:07,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2020-10-13 09:24:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:07,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:07,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:07,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 09:24:07,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:07,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 09:24:07,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:07,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:07,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 09:24:07,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:07,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:08,232 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 132 proven. 231 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2020-10-13 09:24:08,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499795168] [2020-10-13 09:24:08,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:24:08,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 09:24:08,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968271941] [2020-10-13 09:24:08,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 09:24:08,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:24:08,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 09:24:08,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-13 09:24:08,234 INFO L87 Difference]: Start difference. First operand 13072 states and 16364 transitions. Second operand 10 states. [2020-10-13 09:24:09,347 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-10-13 09:24:13,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:24:13,727 INFO L93 Difference]: Finished difference Result 21944 states and 27276 transitions. [2020-10-13 09:24:13,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 09:24:13,728 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 606 [2020-10-13 09:24:13,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:24:13,767 INFO L225 Difference]: With dead ends: 21944 [2020-10-13 09:24:13,768 INFO L226 Difference]: Without dead ends: 8699 [2020-10-13 09:24:13,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2020-10-13 09:24:13,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8699 states. [2020-10-13 09:24:13,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8699 to 8255. [2020-10-13 09:24:13,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8255 states. [2020-10-13 09:24:13,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8255 states to 8255 states and 9327 transitions. [2020-10-13 09:24:13,967 INFO L78 Accepts]: Start accepts. Automaton has 8255 states and 9327 transitions. Word has length 606 [2020-10-13 09:24:13,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:24:13,968 INFO L479 AbstractCegarLoop]: Abstraction has 8255 states and 9327 transitions. [2020-10-13 09:24:13,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 09:24:13,968 INFO L276 IsEmpty]: Start isEmpty. Operand 8255 states and 9327 transitions. [2020-10-13 09:24:13,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2020-10-13 09:24:13,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:24:13,985 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:24:13,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 09:24:13,986 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:24:13,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:24:13,986 INFO L82 PathProgramCache]: Analyzing trace with hash 673909674, now seen corresponding path program 1 times [2020-10-13 09:24:13,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:24:13,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478855636] [2020-10-13 09:24:13,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:24:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:14,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:14,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:14,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:16,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:19,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:19,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 645 [2020-10-13 09:24:19,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 09:24:19,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-13 09:24:19,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 09:24:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 09:24:19,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-13 09:24:19,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:19,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:24:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:19,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:19,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:19,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:24:19,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:19,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 09:24:19,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:19,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:24:19,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:19,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 09:24:19,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:19,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:24:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:19,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:19,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:19,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 09:24:19,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:19,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 09:24:19,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:19,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:24:19,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:24:19,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 09:24:19,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:19,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 09:24:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:19,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:19,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:19,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 09:24:19,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:19,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 09:24:19,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:19,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:19,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-13 09:24:19,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:19,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:19,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-13 09:24:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:19,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:19,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:19,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:24:19,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:19,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 09:24:19,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:19,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:19,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 09:24:19,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:19,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:19,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2020-10-13 09:24:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:19,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:19,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:19,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-13 09:24:19,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:19,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-13 09:24:19,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:19,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:19,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-13 09:24:19,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:19,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:19,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2020-10-13 09:24:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:19,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:19,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:19,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 09:24:19,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:19,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 09:24:19,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:19,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:19,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 09:24:19,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:19,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:19,720 INFO L134 CoverageAnalysis]: Checked inductivity of 963 backedges. 40 proven. 352 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked. [2020-10-13 09:24:19,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478855636] [2020-10-13 09:24:19,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:24:19,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:24:19,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692457976] [2020-10-13 09:24:19,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:24:19,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:24:19,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:24:19,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:24:19,722 INFO L87 Difference]: Start difference. First operand 8255 states and 9327 transitions. Second operand 7 states. [2020-10-13 09:24:23,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:24:23,244 INFO L93 Difference]: Finished difference Result 22308 states and 25451 transitions. [2020-10-13 09:24:23,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 09:24:23,245 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 627 [2020-10-13 09:24:23,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:24:23,281 INFO L225 Difference]: With dead ends: 22308 [2020-10-13 09:24:23,281 INFO L226 Difference]: Without dead ends: 14059 [2020-10-13 09:24:23,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 09:24:23,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14059 states. [2020-10-13 09:24:23,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14059 to 14051. [2020-10-13 09:24:23,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14051 states. [2020-10-13 09:24:23,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14051 states to 14051 states and 15894 transitions. [2020-10-13 09:24:23,524 INFO L78 Accepts]: Start accepts. Automaton has 14051 states and 15894 transitions. Word has length 627 [2020-10-13 09:24:23,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:24:23,524 INFO L479 AbstractCegarLoop]: Abstraction has 14051 states and 15894 transitions. [2020-10-13 09:24:23,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:24:23,524 INFO L276 IsEmpty]: Start isEmpty. Operand 14051 states and 15894 transitions. [2020-10-13 09:24:23,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2020-10-13 09:24:23,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:24:23,550 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:24:23,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 09:24:23,550 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:24:23,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:24:23,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1089336959, now seen corresponding path program 1 times [2020-10-13 09:24:23,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:24:23,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1826943719] [2020-10-13 09:24:23,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:24:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:23,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:23,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:23,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:25,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:25,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:28,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:28,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 680 [2020-10-13 09:24:28,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 09:24:28,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-13 09:24:28,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:28,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:24:28,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 262 [2020-10-13 09:24:28,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 09:24:28,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:28,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:24:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:28,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:28,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:28,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:24:28,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:28,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 09:24:28,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:28,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:28,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:24:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:28,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:28,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:28,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-13 09:24:28,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:28,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 09:24:28,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:28,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:28,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:28,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:28,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:28,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-13 09:24:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:28,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:28,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:28,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 09:24:28,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:28,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 09:24:28,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:28,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:24:28,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:28,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-13 09:24:28,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:29,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-13 09:24:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:29,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:29,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:29,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:24:29,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:29,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-13 09:24:29,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:29,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:24:29,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:24:29,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 09:24:29,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:29,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2020-10-13 09:24:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:29,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:29,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:29,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-13 09:24:29,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:29,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 09:24:29,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:29,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:29,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-13 09:24:29,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:29,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:29,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2020-10-13 09:24:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:29,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:29,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:29,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 09:24:29,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:29,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 09:24:29,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:29,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:29,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 09:24:29,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:29,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:29,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1023 backedges. 275 proven. 178 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2020-10-13 09:24:29,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1826943719] [2020-10-13 09:24:29,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:24:29,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:24:29,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649528190] [2020-10-13 09:24:29,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:24:29,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:24:29,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:24:29,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:24:29,570 INFO L87 Difference]: Start difference. First operand 14051 states and 15894 transitions. Second operand 7 states. [2020-10-13 09:24:33,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:24:33,090 INFO L93 Difference]: Finished difference Result 30487 states and 34613 transitions. [2020-10-13 09:24:33,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 09:24:33,091 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 662 [2020-10-13 09:24:33,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:24:33,133 INFO L225 Difference]: With dead ends: 30487 [2020-10-13 09:24:33,134 INFO L226 Difference]: Without dead ends: 16442 [2020-10-13 09:24:33,154 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 [2020-10-13 09:24:33,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16442 states. [2020-10-13 09:24:33,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16442 to 16083. [2020-10-13 09:24:33,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16083 states. [2020-10-13 09:24:33,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16083 states to 16083 states and 18033 transitions. [2020-10-13 09:24:33,424 INFO L78 Accepts]: Start accepts. Automaton has 16083 states and 18033 transitions. Word has length 662 [2020-10-13 09:24:33,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:24:33,425 INFO L479 AbstractCegarLoop]: Abstraction has 16083 states and 18033 transitions. [2020-10-13 09:24:33,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:24:33,425 INFO L276 IsEmpty]: Start isEmpty. Operand 16083 states and 18033 transitions. [2020-10-13 09:24:33,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2020-10-13 09:24:33,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:24:33,455 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 09:24:33,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 09:24:33,455 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:24:33,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:24:33,456 INFO L82 PathProgramCache]: Analyzing trace with hash -956775258, now seen corresponding path program 1 times [2020-10-13 09:24:33,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:24:33,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143522022] [2020-10-13 09:24:33,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:24:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:33,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:33,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:33,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:34,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:35,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:38,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:38,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 827 [2020-10-13 09:24:38,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 09:24:38,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-13 09:24:38,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:24:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-13 09:24:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 09:24:38,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:38,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:24:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:38,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:38,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:38,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:24:38,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:38,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 09:24:38,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:38,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:38,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:38,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:38,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:38,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:24:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:38,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:38,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:38,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-13 09:24:38,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:38,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 09:24:38,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:38,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:38,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:38,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:38,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:38,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-13 09:24:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:38,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:38,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:38,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-13 09:24:38,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:38,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-13 09:24:38,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:38,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:24:38,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:38,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-13 09:24:38,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:38,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-13 09:24:38,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:38,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:39,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:39,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:24:39,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:39,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-13 09:24:39,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:39,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:24:39,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:24:39,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 09:24:39,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:39,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 515 [2020-10-13 09:24:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:39,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:39,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:39,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-13 09:24:39,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:39,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-13 09:24:39,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:39,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:39,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-13 09:24:39,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:39,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:39,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 730 [2020-10-13 09:24:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:39,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:39,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:39,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 09:24:39,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:39,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 09:24:39,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:39,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:39,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 09:24:39,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:39,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:39,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 275 proven. 178 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked. [2020-10-13 09:24:39,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143522022] [2020-10-13 09:24:39,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:24:39,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:24:39,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214299488] [2020-10-13 09:24:39,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:24:39,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:24:39,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:24:39,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:24:39,631 INFO L87 Difference]: Start difference. First operand 16083 states and 18033 transitions. Second operand 7 states. [2020-10-13 09:24:43,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:24:43,045 INFO L93 Difference]: Finished difference Result 32186 states and 36148 transitions. [2020-10-13 09:24:43,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 09:24:43,046 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 809 [2020-10-13 09:24:43,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:24:43,087 INFO L225 Difference]: With dead ends: 32186 [2020-10-13 09:24:43,087 INFO L226 Difference]: Without dead ends: 16109 [2020-10-13 09:24:43,109 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 09:24:43,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16109 states. [2020-10-13 09:24:43,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16109 to 14404. [2020-10-13 09:24:43,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14404 states. [2020-10-13 09:24:43,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14404 states to 14404 states and 15501 transitions. [2020-10-13 09:24:43,365 INFO L78 Accepts]: Start accepts. Automaton has 14404 states and 15501 transitions. Word has length 809 [2020-10-13 09:24:43,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:24:43,366 INFO L479 AbstractCegarLoop]: Abstraction has 14404 states and 15501 transitions. [2020-10-13 09:24:43,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:24:43,366 INFO L276 IsEmpty]: Start isEmpty. Operand 14404 states and 15501 transitions. [2020-10-13 09:24:43,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1075 [2020-10-13 09:24:43,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:24:43,412 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:24:43,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 09:24:43,412 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:24:43,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:24:43,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1935669413, now seen corresponding path program 1 times [2020-10-13 09:24:43,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:24:43,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68515434] [2020-10-13 09:24:43,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:24:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:43,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:43,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:43,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:43,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:44,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:48,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:48,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1094 [2020-10-13 09:24:48,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 09:24:48,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-13 09:24:48,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:48,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:24:48,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 514 [2020-10-13 09:24:48,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 09:24:48,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:48,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:24:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:48,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:48,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:48,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:24:48,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:48,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:24:48,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:48,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:48,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:48,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:48,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:48,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:24:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:48,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:48,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:48,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-13 09:24:48,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:48,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 09:24:48,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:48,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:48,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:48,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:48,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:48,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-13 09:24:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:48,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:48,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:48,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 09:24:48,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:48,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 09:24:48,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:48,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:48,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:48,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:48,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:48,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-13 09:24:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:48,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:48,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:48,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-13 09:24:48,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:48,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-13 09:24:48,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:48,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:24:48,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:48,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-13 09:24:48,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:48,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2020-10-13 09:24:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:49,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:49,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:49,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:24:49,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:49,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-13 09:24:49,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:49,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:24:49,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:24:49,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 09:24:49,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:49,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 618 [2020-10-13 09:24:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:49,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:49,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:49,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-13 09:24:49,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:49,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 09:24:49,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:49,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:49,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-13 09:24:49,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:49,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:49,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 833 [2020-10-13 09:24:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:49,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:49,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:49,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-13 09:24:49,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:49,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-13 09:24:49,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:49,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:49,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-13 09:24:49,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:49,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:50,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2127 backedges. 403 proven. 216 refuted. 0 times theorem prover too weak. 1508 trivial. 0 not checked. [2020-10-13 09:24:50,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68515434] [2020-10-13 09:24:50,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:24:50,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:24:50,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43625968] [2020-10-13 09:24:50,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:24:50,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:24:50,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:24:50,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:24:50,233 INFO L87 Difference]: Start difference. First operand 14404 states and 15501 transitions. Second operand 7 states. [2020-10-13 09:24:53,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:24:53,999 INFO L93 Difference]: Finished difference Result 30005 states and 32896 transitions. [2020-10-13 09:24:54,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 09:24:54,002 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1074 [2020-10-13 09:24:54,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:24:54,044 INFO L225 Difference]: With dead ends: 30005 [2020-10-13 09:24:54,045 INFO L226 Difference]: Without dead ends: 15607 [2020-10-13 09:24:54,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-13 09:24:54,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15607 states. [2020-10-13 09:24:54,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15607 to 15423. [2020-10-13 09:24:54,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15423 states. [2020-10-13 09:24:54,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15423 states to 15423 states and 16565 transitions. [2020-10-13 09:24:54,321 INFO L78 Accepts]: Start accepts. Automaton has 15423 states and 16565 transitions. Word has length 1074 [2020-10-13 09:24:54,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:24:54,321 INFO L479 AbstractCegarLoop]: Abstraction has 15423 states and 16565 transitions. [2020-10-13 09:24:54,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:24:54,322 INFO L276 IsEmpty]: Start isEmpty. Operand 15423 states and 16565 transitions. [2020-10-13 09:24:54,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1152 [2020-10-13 09:24:54,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:24:54,352 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:24:54,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 09:24:54,352 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:24:54,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:24:54,353 INFO L82 PathProgramCache]: Analyzing trace with hash -437526686, now seen corresponding path program 1 times [2020-10-13 09:24:54,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:24:54,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124761357] [2020-10-13 09:24:54,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:24:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:54,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:54,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:54,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:55,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:59,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:59,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1173 [2020-10-13 09:24:59,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 09:24:59,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-13 09:24:59,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:59,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:24:59,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 590 [2020-10-13 09:24:59,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-13 09:24:59,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:59,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:24:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:59,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:59,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:59,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:24:59,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:59,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:24:59,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:59,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:59,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:24:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:59,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:59,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:59,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-13 09:24:59,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:59,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 09:24:59,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:59,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:59,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:59,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-13 09:24:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:59,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:59,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:59,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 09:24:59,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:59,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 09:24:59,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:59,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:59,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-13 09:24:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:59,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:59,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:59,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-13 09:24:59,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:59,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-13 09:24:59,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:24:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 321 [2020-10-13 09:24:59,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:59,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 09:24:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:00,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:00,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:00,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 09:25:00,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:00,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 09:25:00,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:00,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:25:00,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:00,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 09:25:00,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:00,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 585 [2020-10-13 09:25:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:00,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:00,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:00,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:25:00,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:00,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 09:25:00,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:00,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:25:00,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:25:00,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 09:25:00,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:00,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2020-10-13 09:25:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:00,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:00,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:00,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-13 09:25:00,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:00,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 09:25:00,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:00,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:00,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-13 09:25:00,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:00,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:00,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 910 [2020-10-13 09:25:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:00,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:00,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:00,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-13 09:25:00,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:00,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-13 09:25:00,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-13 09:25:00,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:00,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:01,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2127 backedges. 403 proven. 216 refuted. 0 times theorem prover too weak. 1508 trivial. 0 not checked. [2020-10-13 09:25:01,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1124761357] [2020-10-13 09:25:01,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:25:01,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:25:01,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580134879] [2020-10-13 09:25:01,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:25:01,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:25:01,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:25:01,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:25:01,295 INFO L87 Difference]: Start difference. First operand 15423 states and 16565 transitions. Second operand 7 states. [2020-10-13 09:25:06,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:25:06,284 INFO L93 Difference]: Finished difference Result 32051 states and 35017 transitions. [2020-10-13 09:25:06,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 09:25:06,285 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1151 [2020-10-13 09:25:06,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:25:06,317 INFO L225 Difference]: With dead ends: 32051 [2020-10-13 09:25:06,317 INFO L226 Difference]: Without dead ends: 16634 [2020-10-13 09:25:06,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 09:25:06,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16634 states. [2020-10-13 09:25:06,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16634 to 16446. [2020-10-13 09:25:06,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16446 states. [2020-10-13 09:25:06,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16446 states to 16446 states and 17643 transitions. [2020-10-13 09:25:06,619 INFO L78 Accepts]: Start accepts. Automaton has 16446 states and 17643 transitions. Word has length 1151 [2020-10-13 09:25:06,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:25:06,620 INFO L479 AbstractCegarLoop]: Abstraction has 16446 states and 17643 transitions. [2020-10-13 09:25:06,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:25:06,620 INFO L276 IsEmpty]: Start isEmpty. Operand 16446 states and 17643 transitions. [2020-10-13 09:25:06,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1169 [2020-10-13 09:25:06,646 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:25:06,647 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:25:06,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 09:25:06,648 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:25:06,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:25:06,648 INFO L82 PathProgramCache]: Analyzing trace with hash -2118946341, now seen corresponding path program 1 times [2020-10-13 09:25:06,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:25:06,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905255772] [2020-10-13 09:25:06,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:25:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:06,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:06,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:07,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:07,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:11,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:11,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1190 [2020-10-13 09:25:11,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 09:25:11,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-13 09:25:11,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:11,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:25:11,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 610 [2020-10-13 09:25:11,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 09:25:11,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:11,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:25:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:11,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:11,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:11,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:25:11,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:11,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 09:25:11,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:11,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:11,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:11,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:11,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:11,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:25:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:12,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:12,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:12,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-13 09:25:12,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:12,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 09:25:12,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:12,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:12,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:12,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-13 09:25:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:12,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:12,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:12,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 09:25:12,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:12,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 09:25:12,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:12,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:12,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:12,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:12,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:12,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-13 09:25:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:12,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:12,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:12,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 09:25:12,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:12,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 09:25:12,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:12,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:12,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:12,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:12,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:12,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2020-10-13 09:25:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:12,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:12,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:12,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 09:25:12,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:12,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 09:25:12,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:12,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:25:12,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:12,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-13 09:25:12,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:12,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 09:25:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:12,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:12,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:12,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:25:12,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:12,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 09:25:12,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:12,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:25:12,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:25:12,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 09:25:12,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:12,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 712 [2020-10-13 09:25:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:12,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:12,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:12,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-13 09:25:12,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:12,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 09:25:12,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:12,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:12,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-13 09:25:12,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:12,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:12,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 927 [2020-10-13 09:25:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:12,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:12,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:12,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-13 09:25:12,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:12,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-13 09:25:12,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:12,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:12,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-13 09:25:12,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:12,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:13,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2986 backedges. 531 proven. 216 refuted. 0 times theorem prover too weak. 2239 trivial. 0 not checked. [2020-10-13 09:25:13,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1905255772] [2020-10-13 09:25:13,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:25:13,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:25:13,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614007761] [2020-10-13 09:25:13,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:25:13,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:25:13,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:25:13,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:25:13,541 INFO L87 Difference]: Start difference. First operand 16446 states and 17643 transitions. Second operand 7 states. [2020-10-13 09:25:17,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:25:17,564 INFO L93 Difference]: Finished difference Result 35474 states and 38784 transitions. [2020-10-13 09:25:17,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 09:25:17,565 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1168 [2020-10-13 09:25:17,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:25:17,605 INFO L225 Difference]: With dead ends: 35474 [2020-10-13 09:25:17,605 INFO L226 Difference]: Without dead ends: 19375 [2020-10-13 09:25:17,623 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-13 09:25:17,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19375 states. [2020-10-13 09:25:17,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19375 to 18818. [2020-10-13 09:25:17,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18818 states. [2020-10-13 09:25:17,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18818 states to 18818 states and 20088 transitions. [2020-10-13 09:25:17,950 INFO L78 Accepts]: Start accepts. Automaton has 18818 states and 20088 transitions. Word has length 1168 [2020-10-13 09:25:17,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:25:17,951 INFO L479 AbstractCegarLoop]: Abstraction has 18818 states and 20088 transitions. [2020-10-13 09:25:17,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:25:17,951 INFO L276 IsEmpty]: Start isEmpty. Operand 18818 states and 20088 transitions. [2020-10-13 09:25:17,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1335 [2020-10-13 09:25:17,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:25:17,974 INFO L422 BasicCegarLoop]: trace histogram [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, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:25:17,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 09:25:17,974 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:25:17,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:25:17,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1197964893, now seen corresponding path program 1 times [2020-10-13 09:25:17,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:25:17,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595510708] [2020-10-13 09:25:17,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:25:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:18,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:18,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:18,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:18,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:19,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:23,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:23,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1356 [2020-10-13 09:25:23,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 09:25:23,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5063 [2020-10-13 09:25:23,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:23,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:25:23,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-13 09:25:23,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-13 09:25:23,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:23,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:25:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:23,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:23,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:23,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:25:23,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:23,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 09:25:23,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:23,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:23,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:23,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:23,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:23,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:25:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:23,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:23,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:23,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-13 09:25:23,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:23,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-13 09:25:23,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:23,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:25:23,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:23,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-13 09:25:23,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:23,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-13 09:25:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:23,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:23,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:23,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-13 09:25:23,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:23,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-13 09:25:23,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:23,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:25:23,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:25:23,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-10-13 09:25:23,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:23,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-10-13 09:25:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:23,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:23,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:23,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-13 09:25:23,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:23,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 09:25:23,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:23,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:23,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-13 09:25:23,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:23,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:23,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2020-10-13 09:25:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:23,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:23,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:23,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 09:25:23,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:23,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 09:25:23,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:23,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:23,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-13 09:25:23,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:23,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:23,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2020-10-13 09:25:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:24,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:24,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:24,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-13 09:25:24,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:24,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-13 09:25:24,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:24,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:24,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-13 09:25:24,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:24,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:24,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1050 [2020-10-13 09:25:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:24,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:24,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:24,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-13 09:25:24,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:24,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 09:25:24,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:24,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:24,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 09:25:24,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:24,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:24,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1255 [2020-10-13 09:25:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:24,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:24,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:24,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 09:25:24,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:24,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 09:25:24,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:24,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:24,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 09:25:24,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:24,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:25,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2989 backedges. 268 proven. 715 refuted. 0 times theorem prover too weak. 2006 trivial. 0 not checked. [2020-10-13 09:25:25,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595510708] [2020-10-13 09:25:25,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:25:25,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:25:25,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737884990] [2020-10-13 09:25:25,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:25:25,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:25:25,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:25:25,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:25:25,136 INFO L87 Difference]: Start difference. First operand 18818 states and 20088 transitions. Second operand 7 states. [2020-10-13 09:25:29,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:25:29,180 INFO L93 Difference]: Finished difference Result 39216 states and 42624 transitions. [2020-10-13 09:25:29,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 09:25:29,181 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1334 [2020-10-13 09:25:29,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:25:29,220 INFO L225 Difference]: With dead ends: 39216 [2020-10-13 09:25:29,220 INFO L226 Difference]: Without dead ends: 20745 [2020-10-13 09:25:29,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-13 09:25:29,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20745 states. [2020-10-13 09:25:29,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20745 to 19835. [2020-10-13 09:25:29,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19835 states. [2020-10-13 09:25:29,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19835 states to 19835 states and 21188 transitions. [2020-10-13 09:25:29,771 INFO L78 Accepts]: Start accepts. Automaton has 19835 states and 21188 transitions. Word has length 1334 [2020-10-13 09:25:29,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:25:29,772 INFO L479 AbstractCegarLoop]: Abstraction has 19835 states and 21188 transitions. [2020-10-13 09:25:29,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:25:29,772 INFO L276 IsEmpty]: Start isEmpty. Operand 19835 states and 21188 transitions. [2020-10-13 09:25:29,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1341 [2020-10-13 09:25:29,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:25:29,821 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:25:29,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 09:25:29,821 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:25:29,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:25:29,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1013321341, now seen corresponding path program 1 times [2020-10-13 09:25:29,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:25:29,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1280481873] [2020-10-13 09:25:29,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:25:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:30,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:30,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:30,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:30,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:30,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:35,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:35,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1364 [2020-10-13 09:25:35,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 09:25:35,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-13 09:25:35,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:35,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:25:35,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 739 [2020-10-13 09:25:35,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 09:25:35,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:35,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:25:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:35,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:35,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:35,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:25:35,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:35,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:25:35,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:35,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:35,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:35,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:35,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:35,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:25:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:35,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:35,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:35,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-13 09:25:35,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:35,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 09:25:35,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:35,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:35,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:35,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:35,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:35,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-13 09:25:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:35,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:35,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:35,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 09:25:35,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:35,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 09:25:35,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:35,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:35,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:35,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:35,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:35,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2020-10-13 09:25:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:35,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:35,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:35,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-13 09:25:35,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:35,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 09:25:35,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:35,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:35,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:35,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:35,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:35,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2020-10-13 09:25:35,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:35,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:35,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:35,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-13 09:25:35,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:35,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-13 09:25:35,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:35,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:25:35,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:35,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-13 09:25:35,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:35,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 731 [2020-10-13 09:25:35,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:35,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:35,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:35,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 09:25:35,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:35,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-13 09:25:35,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:35,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:25:35,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:25:35,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 09:25:35,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:35,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 802 [2020-10-13 09:25:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:36,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:36,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:36,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-13 09:25:36,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:36,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-13 09:25:36,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:36,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:36,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-13 09:25:36,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:36,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 09:25:36,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1056 [2020-10-13 09:25:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:36,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:36,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:36,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-13 09:25:36,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:36,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-13 09:25:36,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:36,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:36,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 09:25:36,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:36,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:36,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1261 [2020-10-13 09:25:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:36,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:36,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:36,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 09:25:36,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:36,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 09:25:36,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:36,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:36,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 09:25:36,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:36,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:37,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3362 backedges. 399 proven. 206 refuted. 0 times theorem prover too weak. 2757 trivial. 0 not checked. [2020-10-13 09:25:37,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1280481873] [2020-10-13 09:25:37,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:25:37,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:25:37,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826570772] [2020-10-13 09:25:37,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:25:37,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:25:37,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:25:37,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:25:37,553 INFO L87 Difference]: Start difference. First operand 19835 states and 21188 transitions. Second operand 7 states. [2020-10-13 09:25:41,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:25:41,198 INFO L93 Difference]: Finished difference Result 41026 states and 43856 transitions. [2020-10-13 09:25:41,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 09:25:41,199 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1340 [2020-10-13 09:25:41,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:25:41,237 INFO L225 Difference]: With dead ends: 41026 [2020-10-13 09:25:41,237 INFO L226 Difference]: Without dead ends: 21538 [2020-10-13 09:25:41,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-13 09:25:41,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21538 states. [2020-10-13 09:25:41,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21538 to 21191. [2020-10-13 09:25:41,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21191 states. [2020-10-13 09:25:41,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21191 states to 21191 states and 22586 transitions. [2020-10-13 09:25:41,527 INFO L78 Accepts]: Start accepts. Automaton has 21191 states and 22586 transitions. Word has length 1340 [2020-10-13 09:25:41,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:25:41,527 INFO L479 AbstractCegarLoop]: Abstraction has 21191 states and 22586 transitions. [2020-10-13 09:25:41,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:25:41,528 INFO L276 IsEmpty]: Start isEmpty. Operand 21191 states and 22586 transitions. [2020-10-13 09:25:41,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1371 [2020-10-13 09:25:41,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:25:41,557 INFO L422 BasicCegarLoop]: trace histogram [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, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:25:41,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 09:25:41,557 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:25:41,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:25:41,558 INFO L82 PathProgramCache]: Analyzing trace with hash 2137307223, now seen corresponding path program 1 times [2020-10-13 09:25:41,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:25:41,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55463755] [2020-10-13 09:25:41,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:25:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:41,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:41,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:42,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:46,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:46,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1392 [2020-10-13 09:25:46,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 09:25:46,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-13 09:25:46,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:46,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 09:25:46,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 09:25:46,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-13 09:25:46,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:46,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:25:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:46,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:46,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:46,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:25:46,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:46,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 09:25:46,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:46,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:25:46,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:46,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 09:25:46,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:46,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:25:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:46,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:47,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:47,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:47,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-13 09:25:47,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 09:25:47,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 709 [2020-10-13 09:25:47,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:47,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:25:47,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:25:47,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-13 09:25:47,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:48,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-13 09:25:48,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:48,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:48,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:48,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-13 09:25:48,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:48,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 09:25:48,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:48,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:48,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 274 [2020-10-13 09:25:48,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:48,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:48,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-13 09:25:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:48,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:48,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:48,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 09:25:48,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:48,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 09:25:48,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:48,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:48,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-13 09:25:48,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:48,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:48,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-13 09:25:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:48,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:48,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:48,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 09:25:48,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:48,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 09:25:48,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:48,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:48,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-13 09:25:48,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:48,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:48,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-13 09:25:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:48,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:48,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:48,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:25:48,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:48,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 09:25:48,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:48,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:48,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 09:25:48,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:48,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:48,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-13 09:25:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:48,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:48,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:48,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-13 09:25:48,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:48,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 09:25:48,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:48,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:48,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-13 09:25:48,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:48,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:48,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1129 [2020-10-13 09:25:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:49,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:49,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:49,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-13 09:25:49,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:49,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 09:25:49,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:49,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:49,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-13 09:25:49,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:49,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:50,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3218 backedges. 56 proven. 1049 refuted. 0 times theorem prover too weak. 2113 trivial. 0 not checked. [2020-10-13 09:25:50,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55463755] [2020-10-13 09:25:50,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:25:50,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 09:25:50,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168257405] [2020-10-13 09:25:50,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 09:25:50,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:25:50,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 09:25:50,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 09:25:50,932 INFO L87 Difference]: Start difference. First operand 21191 states and 22586 transitions. Second operand 8 states. [2020-10-13 09:25:54,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:25:54,981 INFO L93 Difference]: Finished difference Result 42365 states and 45155 transitions. [2020-10-13 09:25:54,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 09:25:54,987 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1370 [2020-10-13 09:25:54,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:25:55,020 INFO L225 Difference]: With dead ends: 42365 [2020-10-13 09:25:55,020 INFO L226 Difference]: Without dead ends: 21527 [2020-10-13 09:25:55,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-13 09:25:55,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21527 states. [2020-10-13 09:25:55,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21527 to 21187. [2020-10-13 09:25:55,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21187 states. [2020-10-13 09:25:55,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21187 states to 21187 states and 22564 transitions. [2020-10-13 09:25:55,325 INFO L78 Accepts]: Start accepts. Automaton has 21187 states and 22564 transitions. Word has length 1370 [2020-10-13 09:25:55,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:25:55,326 INFO L479 AbstractCegarLoop]: Abstraction has 21187 states and 22564 transitions. [2020-10-13 09:25:55,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 09:25:55,326 INFO L276 IsEmpty]: Start isEmpty. Operand 21187 states and 22564 transitions. [2020-10-13 09:25:55,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1469 [2020-10-13 09:25:55,377 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:25:55,378 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:25:55,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 09:25:55,378 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:25:55,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:25:55,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1194215471, now seen corresponding path program 1 times [2020-10-13 09:25:55,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:25:55,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [764078851] [2020-10-13 09:25:55,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:25:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:55,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:56,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:56,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:59,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:00,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:00,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1492 [2020-10-13 09:26:00,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 09:26:00,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-13 09:26:00,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:00,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:26:00,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1024 [2020-10-13 09:26:00,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-13 09:26:00,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:00,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:26:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:00,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:00,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:00,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:26:00,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:00,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 09:26:00,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:00,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:00,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:00,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:00,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:00,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:26:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:00,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:00,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:00,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-13 09:26:00,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:00,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 09:26:00,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:00,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:00,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:00,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:00,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:00,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-13 09:26:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:00,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:00,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:00,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 09:26:00,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:00,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 09:26:00,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:00,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:00,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:00,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:00,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:01,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-13 09:26:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:01,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:01,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:01,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-13 09:26:01,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:01,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 09:26:01,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:01,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:01,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:01,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:01,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:01,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2020-10-13 09:26:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:01,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:01,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:01,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 09:26:01,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:01,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 09:26:01,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:01,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:01,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:01,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:01,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:01,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 714 [2020-10-13 09:26:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:01,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:01,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:01,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 09:26:01,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:01,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 09:26:01,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:01,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:01,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:01,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:01,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:01,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 902 [2020-10-13 09:26:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:01,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:01,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:01,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:26:01,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:01,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 09:26:01,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:01,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:26:01,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:01,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-13 09:26:01,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:01,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2020-10-13 09:26:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:01,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking...