/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/Problem18_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:15:26,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:15:26,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:15:26,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:15:26,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:15:26,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:15:26,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:15:26,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:15:26,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:15:26,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:15:26,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:15:26,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:15:26,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:15:26,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:15:26,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:15:26,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:15:26,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:15:26,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:15:26,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:15:26,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:15:26,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:15:26,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:15:26,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:15:26,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:15:26,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:15:26,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:15:26,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:15:26,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:15:26,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:15:26,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:15:26,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:15:26,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:15:26,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:15:26,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:15:26,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:15:26,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:15:26,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:15:26,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:15:26,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:15:26,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:15:26,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:15:26,695 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 [2020-10-14 04:15:26,717 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:15:26,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:15:26,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:15:26,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:15:26,719 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:15:26,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:15:26,720 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:15:26,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:15:26,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:15:26,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:15:26,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:15:26,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:15:26,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:15:26,721 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:15:26,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:15:26,721 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:15:26,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:15:26,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:15:26,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:15:26,722 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:15:26,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:15:26,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:15:26,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:15:26,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:15:26,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:15:26,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:15:26,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:15:26,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:15:26,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:15:26,724 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 04:15:27,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:15:27,091 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:15:27,095 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:15:27,097 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:15:27,097 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:15:27,098 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label21.c [2020-10-14 04:15:27,159 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/482ea75bb/af1bfc8c640541918dfc6109757fcf79/FLAGd53dce2b9 [2020-10-14 04:15:27,916 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:15:27,917 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label21.c [2020-10-14 04:15:27,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/482ea75bb/af1bfc8c640541918dfc6109757fcf79/FLAGd53dce2b9 [2020-10-14 04:15:28,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/482ea75bb/af1bfc8c640541918dfc6109757fcf79 [2020-10-14 04:15:28,017 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:15:28,019 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:15:28,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:15:28,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:15:28,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:15:28,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:15:28" (1/1) ... [2020-10-14 04:15:28,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7468b030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:15:28, skipping insertion in model container [2020-10-14 04:15:28,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:15:28" (1/1) ... [2020-10-14 04:15:28,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:15:28,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:15:29,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:15:29,725 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:15:30,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:15:30,217 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:15:30,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:15:30 WrapperNode [2020-10-14 04:15:30,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:15:30,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:15:30,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:15:30,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:15:30,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:15:30" (1/1) ... [2020-10-14 04:15:30,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:15:30" (1/1) ... [2020-10-14 04:15:30,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:15:30" (1/1) ... [2020-10-14 04:15:30,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:15:30" (1/1) ... [2020-10-14 04:15:30,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:15:30" (1/1) ... [2020-10-14 04:15:30,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:15:30" (1/1) ... [2020-10-14 04:15:30,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:15:30" (1/1) ... [2020-10-14 04:15:30,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:15:30,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:15:30,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:15:30,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:15:30,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:15:30" (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 [2020-10-14 04:15:30,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:15:30,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:15:30,599 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 04:15:30,599 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 04:15:30,599 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 04:15:30,599 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:15:30,599 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 04:15:30,600 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 04:15:30,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 04:15:30,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:15:30,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 04:15:30,605 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 04:15:30,605 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:15:30,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:15:30,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:15:36,942 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:15:36,942 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 04:15:36,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:15:36 BoogieIcfgContainer [2020-10-14 04:15:36,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:15:36,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:15:36,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:15:36,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:15:36,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:15:28" (1/3) ... [2020-10-14 04:15:36,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3104ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:15:36, skipping insertion in model container [2020-10-14 04:15:36,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:15:30" (2/3) ... [2020-10-14 04:15:36,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3104ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:15:36, skipping insertion in model container [2020-10-14 04:15:36,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:15:36" (3/3) ... [2020-10-14 04:15:36,967 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label21.c [2020-10-14 04:15:36,979 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:15:36,989 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:15:37,006 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:15:37,034 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:15:37,034 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:15:37,034 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:15:37,034 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:15:37,034 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:15:37,035 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:15:37,035 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:15:37,035 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:15:37,071 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 04:15:37,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 04:15:37,081 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:15:37,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:15:37,083 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:15:37,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:15:37,089 INFO L82 PathProgramCache]: Analyzing trace with hash -242469919, now seen corresponding path program 1 times [2020-10-14 04:15:37,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:15:37,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372907013] [2020-10-14 04:15:37,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:15:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:37,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:37,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:37,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 04:15:37,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:37,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 433 [2020-10-14 04:15:37,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:37,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:37,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:15:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:15:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 04:15:37,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:15:37,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:15:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:37,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:37,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:37,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:15:37,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:37,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 04:15:37,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:37,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:37,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:15:37,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:37,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:15:37,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:37,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:15:37,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372907013] [2020-10-14 04:15:37,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:15:37,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:15:37,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694850905] [2020-10-14 04:15:37,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:15:37,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:15:37,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:15:37,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:15:37,892 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 5 states. [2020-10-14 04:15:48,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:15:48,935 INFO L93 Difference]: Finished difference Result 2984 states and 5767 transitions. [2020-10-14 04:15:48,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:15:48,937 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2020-10-14 04:15:48,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:15:48,973 INFO L225 Difference]: With dead ends: 2984 [2020-10-14 04:15:48,974 INFO L226 Difference]: Without dead ends: 2142 [2020-10-14 04:15:48,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:15:49,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states. [2020-10-14 04:15:49,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 2135. [2020-10-14 04:15:49,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2135 states. [2020-10-14 04:15:49,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 3227 transitions. [2020-10-14 04:15:49,154 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 3227 transitions. Word has length 64 [2020-10-14 04:15:49,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:15:49,155 INFO L479 AbstractCegarLoop]: Abstraction has 2135 states and 3227 transitions. [2020-10-14 04:15:49,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:15:49,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 3227 transitions. [2020-10-14 04:15:49,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-14 04:15:49,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:15:49,162 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 04:15:49,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:15:49,162 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:15:49,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:15:49,163 INFO L82 PathProgramCache]: Analyzing trace with hash -287137732, now seen corresponding path program 1 times [2020-10-14 04:15:49,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:15:49,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160800095] [2020-10-14 04:15:49,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:15:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:49,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:49,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:49,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:50,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:50,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 04:15:50,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:15:50,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1538 [2020-10-14 04:15:50,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:50,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:50,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:50,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 04:15:50,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 04:15:50,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:50,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:15:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:50,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:50,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:50,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:15:50,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:50,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:15:50,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:50,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:50,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:50,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:15:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:50,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:50,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:50,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:15:50,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:50,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 04:15:50,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:50,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:50,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:15:50,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:50,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 04:15:50,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:50,975 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 56 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:15:50,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [160800095] [2020-10-14 04:15:50,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:15:50,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 04:15:50,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246165049] [2020-10-14 04:15:50,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:15:50,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:15:50,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:15:50,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:15:50,979 INFO L87 Difference]: Start difference. First operand 2135 states and 3227 transitions. Second operand 6 states. [2020-10-14 04:16:03,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:16:03,189 INFO L93 Difference]: Finished difference Result 8533 states and 13117 transitions. [2020-10-14 04:16:03,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:16:03,196 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2020-10-14 04:16:03,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:16:03,236 INFO L225 Difference]: With dead ends: 8533 [2020-10-14 04:16:03,236 INFO L226 Difference]: Without dead ends: 6404 [2020-10-14 04:16:03,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:16:03,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6404 states. [2020-10-14 04:16:03,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6404 to 6400. [2020-10-14 04:16:03,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6400 states. [2020-10-14 04:16:03,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6400 states to 6400 states and 9135 transitions. [2020-10-14 04:16:03,447 INFO L78 Accepts]: Start accepts. Automaton has 6400 states and 9135 transitions. Word has length 134 [2020-10-14 04:16:03,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:16:03,452 INFO L479 AbstractCegarLoop]: Abstraction has 6400 states and 9135 transitions. [2020-10-14 04:16:03,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:16:03,452 INFO L276 IsEmpty]: Start isEmpty. Operand 6400 states and 9135 transitions. [2020-10-14 04:16:03,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-14 04:16:03,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:16:03,469 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 04:16:03,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:16:03,469 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:16:03,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:16:03,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1807980780, now seen corresponding path program 1 times [2020-10-14 04:16:03,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:16:03,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1639604051] [2020-10-14 04:16:03,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:16:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:03,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:03,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:05,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:05,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 04:16:05,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:16:05,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1575 [2020-10-14 04:16:05,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:05,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:05,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:05,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:16:05,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 04:16:05,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:05,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:16:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:05,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:05,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:05,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:16:05,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:05,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:16:05,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:05,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:05,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:05,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:05,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:05,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:05,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:16:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:05,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:05,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:05,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:16:05,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:05,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 04:16:05,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:05,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:05,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:05,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:05,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:16:05,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:05,432 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 56 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:16:05,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1639604051] [2020-10-14 04:16:05,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:16:05,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:16:05,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254886094] [2020-10-14 04:16:05,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:16:05,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:16:05,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:16:05,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:16:05,438 INFO L87 Difference]: Start difference. First operand 6400 states and 9135 transitions. Second operand 5 states. [2020-10-14 04:16:14,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:16:14,834 INFO L93 Difference]: Finished difference Result 19183 states and 27795 transitions. [2020-10-14 04:16:14,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:16:14,835 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 186 [2020-10-14 04:16:14,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:16:14,901 INFO L225 Difference]: With dead ends: 19183 [2020-10-14 04:16:14,901 INFO L226 Difference]: Without dead ends: 12789 [2020-10-14 04:16:14,918 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:16:14,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12789 states. [2020-10-14 04:16:15,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12789 to 12781. [2020-10-14 04:16:15,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12781 states. [2020-10-14 04:16:15,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12781 states to 12781 states and 17067 transitions. [2020-10-14 04:16:15,267 INFO L78 Accepts]: Start accepts. Automaton has 12781 states and 17067 transitions. Word has length 186 [2020-10-14 04:16:15,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:16:15,271 INFO L479 AbstractCegarLoop]: Abstraction has 12781 states and 17067 transitions. [2020-10-14 04:16:15,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:16:15,272 INFO L276 IsEmpty]: Start isEmpty. Operand 12781 states and 17067 transitions. [2020-10-14 04:16:15,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-14 04:16:15,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:16:15,290 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 04:16:15,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:16:15,291 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:16:15,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:16:15,292 INFO L82 PathProgramCache]: Analyzing trace with hash -186976640, now seen corresponding path program 1 times [2020-10-14 04:16:15,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:16:15,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152751126] [2020-10-14 04:16:15,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:16:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:15,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:15,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:16,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:16,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:16,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-14 04:16:16,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:16:16,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1496 [2020-10-14 04:16:16,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:16,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:16,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:16,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-14 04:16:16,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 04:16:16,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:16,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:16:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:16,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:16,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:16,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:16:16,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:16,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:16:16,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:16,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:16,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:16,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:16,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:16,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:16,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:16:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:17,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:17,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:17,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-14 04:16:17,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:17,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 04:16:17,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:17,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:17,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:17,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:17,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 04:16:17,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:17,188 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 56 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:16:17,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152751126] [2020-10-14 04:16:17,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:16:17,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:16:17,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409782457] [2020-10-14 04:16:17,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:16:17,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:16:17,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:16:17,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:16:17,192 INFO L87 Difference]: Start difference. First operand 12781 states and 17067 transitions. Second operand 5 states. [2020-10-14 04:16:26,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:16:26,044 INFO L93 Difference]: Finished difference Result 29818 states and 41229 transitions. [2020-10-14 04:16:26,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:16:26,045 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2020-10-14 04:16:26,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:16:26,104 INFO L225 Difference]: With dead ends: 29818 [2020-10-14 04:16:26,105 INFO L226 Difference]: Without dead ends: 17043 [2020-10-14 04:16:26,133 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 [2020-10-14 04:16:26,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17043 states. [2020-10-14 04:16:26,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17043 to 16333. [2020-10-14 04:16:26,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16333 states. [2020-10-14 04:16:26,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16333 states to 16333 states and 21369 transitions. [2020-10-14 04:16:26,569 INFO L78 Accepts]: Start accepts. Automaton has 16333 states and 21369 transitions. Word has length 212 [2020-10-14 04:16:26,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:16:26,570 INFO L479 AbstractCegarLoop]: Abstraction has 16333 states and 21369 transitions. [2020-10-14 04:16:26,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:16:26,570 INFO L276 IsEmpty]: Start isEmpty. Operand 16333 states and 21369 transitions. [2020-10-14 04:16:26,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-10-14 04:16:26,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:16:26,581 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:16:26,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 04:16:26,581 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:16:26,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:16:26,582 INFO L82 PathProgramCache]: Analyzing trace with hash 230331779, now seen corresponding path program 1 times [2020-10-14 04:16:26,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:16:26,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338963372] [2020-10-14 04:16:26,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:16:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:26,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:26,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:26,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:27,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:29,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:31,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:31,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 04:16:31,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:16:31,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-14 04:16:31,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:31,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:31,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:31,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 04:16:31,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 04:16:31,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:16:31,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:16:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:31,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:31,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:31,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:16:31,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:31,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:16:31,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:31,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:31,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:31,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:31,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:31,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:31,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:16:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:31,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:31,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:31,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 04:16:31,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:31,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 04:16:31,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:31,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:31,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:31,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:31,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 04:16:31,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:31,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 04:16:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:31,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:32,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:32,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 04:16:32,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:32,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 04:16:32,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:32,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:32,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:32,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:16:32,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 04:16:32,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:32,163 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 199 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:16:32,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338963372] [2020-10-14 04:16:32,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:16:32,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 04:16:32,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967589188] [2020-10-14 04:16:32,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:16:32,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:16:32,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:16:32,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:16:32,169 INFO L87 Difference]: Start difference. First operand 16333 states and 21369 transitions. Second operand 8 states. [2020-10-14 04:16:44,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:16:44,670 INFO L93 Difference]: Finished difference Result 37117 states and 50565 transitions. [2020-10-14 04:16:44,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 04:16:44,671 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 262 [2020-10-14 04:16:44,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:16:44,751 INFO L225 Difference]: With dead ends: 37117 [2020-10-14 04:16:44,751 INFO L226 Difference]: Without dead ends: 20790 [2020-10-14 04:16:44,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 04:16:44,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20790 states. [2020-10-14 04:16:45,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20790 to 20762. [2020-10-14 04:16:45,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20762 states. [2020-10-14 04:16:45,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20762 states to 20762 states and 27970 transitions. [2020-10-14 04:16:45,207 INFO L78 Accepts]: Start accepts. Automaton has 20762 states and 27970 transitions. Word has length 262 [2020-10-14 04:16:45,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:16:45,208 INFO L479 AbstractCegarLoop]: Abstraction has 20762 states and 27970 transitions. [2020-10-14 04:16:45,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:16:45,209 INFO L276 IsEmpty]: Start isEmpty. Operand 20762 states and 27970 transitions. [2020-10-14 04:16:45,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-10-14 04:16:45,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:16:45,224 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:16:45,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 04:16:45,224 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:16:45,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:16:45,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1717629221, now seen corresponding path program 1 times [2020-10-14 04:16:45,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:16:45,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569040012] [2020-10-14 04:16:45,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:16:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:45,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:45,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:45,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:46,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:47,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:50,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:50,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-14 04:16:50,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:16:50,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 04:16:50,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:50,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:50,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:50,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 04:16:50,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 04:16:50,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:50,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:16:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:50,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:50,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:50,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:16:50,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:50,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:16:50,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:50,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:50,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:50,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:50,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:50,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:50,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:16:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:50,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:50,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:50,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 04:16:50,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:50,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 04:16:50,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:50,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 04:16:50,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:50,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 04:16:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:50,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:50,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:50,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 04:16:50,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:50,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-14 04:16:50,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:50,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:50,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:50,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:16:50,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 04:16:50,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:50,958 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 199 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:16:50,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569040012] [2020-10-14 04:16:50,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:16:50,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:16:50,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610187701] [2020-10-14 04:16:50,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:16:50,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:16:50,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:16:50,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:16:50,962 INFO L87 Difference]: Start difference. First operand 20762 states and 27970 transitions. Second operand 7 states. [2020-10-14 04:17:01,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:17:01,491 INFO L93 Difference]: Finished difference Result 49558 states and 68540 transitions. [2020-10-14 04:17:01,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:17:01,498 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 314 [2020-10-14 04:17:01,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:17:01,579 INFO L225 Difference]: With dead ends: 49558 [2020-10-14 04:17:01,580 INFO L226 Difference]: Without dead ends: 26613 [2020-10-14 04:17:01,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:17:01,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26613 states. [2020-10-14 04:17:02,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26613 to 23771. [2020-10-14 04:17:02,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23771 states. [2020-10-14 04:17:02,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23771 states to 23771 states and 28121 transitions. [2020-10-14 04:17:02,986 INFO L78 Accepts]: Start accepts. Automaton has 23771 states and 28121 transitions. Word has length 314 [2020-10-14 04:17:02,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:17:02,987 INFO L479 AbstractCegarLoop]: Abstraction has 23771 states and 28121 transitions. [2020-10-14 04:17:02,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:17:02,987 INFO L276 IsEmpty]: Start isEmpty. Operand 23771 states and 28121 transitions. [2020-10-14 04:17:02,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-10-14 04:17:02,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:17:02,997 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 04:17:02,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 04:17:02,997 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:17:02,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:17:02,998 INFO L82 PathProgramCache]: Analyzing trace with hash 459825521, now seen corresponding path program 1 times [2020-10-14 04:17:02,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:17:02,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645258602] [2020-10-14 04:17:02,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:17:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:03,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:03,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:04,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:06,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:06,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 349 [2020-10-14 04:17:06,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:17:06,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3687 [2020-10-14 04:17:06,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:06,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:17:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 04:17:06,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 04:17:06,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:17:06,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:17:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:06,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:06,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:06,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:17:06,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:06,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:17:06,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:06,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:06,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:06,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:17:06,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:17:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:06,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:06,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:06,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 04:17:06,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:06,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 04:17:06,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:06,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:06,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:06,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:06,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:06,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:17:06,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 04:17:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:06,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:06,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:06,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 04:17:06,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:06,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 04:17:06,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:06,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:06,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:17:06,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:06,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 04:17:06,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:17:06,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-14 04:17:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:06,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:07,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:07,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 04:17:07,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:07,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 04:17:07,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:07,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:07,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:17:07,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:17:07,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 04:17:07,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:17:07,255 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 331 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-14 04:17:07,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645258602] [2020-10-14 04:17:07,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:17:07,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:17:07,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851600504] [2020-10-14 04:17:07,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:17:07,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:17:07,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:17:07,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:17:07,259 INFO L87 Difference]: Start difference. First operand 23771 states and 28121 transitions. Second operand 7 states. [2020-10-14 04:17:16,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:17:16,328 INFO L93 Difference]: Finished difference Result 58619 states and 72881 transitions. [2020-10-14 04:17:16,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:17:16,329 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 335 [2020-10-14 04:17:16,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:17:16,421 INFO L225 Difference]: With dead ends: 58619 [2020-10-14 04:17:16,421 INFO L226 Difference]: Without dead ends: 34854 [2020-10-14 04:17:16,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:17:16,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34854 states. [2020-10-14 04:17:17,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34854 to 33924. [2020-10-14 04:17:17,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33924 states. [2020-10-14 04:17:17,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33924 states to 33924 states and 39766 transitions. [2020-10-14 04:17:17,102 INFO L78 Accepts]: Start accepts. Automaton has 33924 states and 39766 transitions. Word has length 335 [2020-10-14 04:17:17,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:17:17,102 INFO L479 AbstractCegarLoop]: Abstraction has 33924 states and 39766 transitions. [2020-10-14 04:17:17,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:17:17,103 INFO L276 IsEmpty]: Start isEmpty. Operand 33924 states and 39766 transitions. [2020-10-14 04:17:17,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2020-10-14 04:17:17,115 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:17:17,115 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 04:17:17,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 04:17:17,116 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:17:17,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:17:17,116 INFO L82 PathProgramCache]: Analyzing trace with hash -188808083, now seen corresponding path program 1 times [2020-10-14 04:17:17,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:17:17,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536285819] [2020-10-14 04:17:17,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:17:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:17,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:17,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:17,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:18,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:22,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:22,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 367 [2020-10-14 04:17:22,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:17:22,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 04:17:22,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:22,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:22,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:17:22,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 191 [2020-10-14 04:17:22,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 04:17:22,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:22,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:17:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:22,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:22,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:22,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:17:22,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:22,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:17:22,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:22,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:22,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:22,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:22,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:22,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:17:22,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:17:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:22,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:22,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:22,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 04:17:22,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:22,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 04:17:22,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:22,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:22,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:22,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:22,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:22,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:22,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 04:17:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:22,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:22,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:22,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 04:17:22,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:22,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 04:17:22,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:22,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:17:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:22,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 04:17:22,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:17:22,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-14 04:17:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:22,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:22,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:22,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 04:17:22,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:22,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 04:17:22,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:22,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:22,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:17:22,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:17:22,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 04:17:22,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:22,542 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 349 proven. 2 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-14 04:17:22,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536285819] [2020-10-14 04:17:22,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:17:22,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:17:22,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023466087] [2020-10-14 04:17:22,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:17:22,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:17:22,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:17:22,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:17:22,545 INFO L87 Difference]: Start difference. First operand 33924 states and 39766 transitions. Second operand 7 states. [2020-10-14 04:17:31,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:17:31,920 INFO L93 Difference]: Finished difference Result 85561 states and 102603 transitions. [2020-10-14 04:17:31,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:17:31,921 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 353 [2020-10-14 04:17:31,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:17:32,052 INFO L225 Difference]: With dead ends: 85561 [2020-10-14 04:17:32,053 INFO L226 Difference]: Without dead ends: 51643 [2020-10-14 04:17:32,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:17:32,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51643 states. [2020-10-14 04:17:32,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51643 to 51615. [2020-10-14 04:17:32,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51615 states. [2020-10-14 04:17:32,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51615 states to 51615 states and 60592 transitions. [2020-10-14 04:17:32,933 INFO L78 Accepts]: Start accepts. Automaton has 51615 states and 60592 transitions. Word has length 353 [2020-10-14 04:17:32,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:17:32,933 INFO L479 AbstractCegarLoop]: Abstraction has 51615 states and 60592 transitions. [2020-10-14 04:17:32,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:17:32,933 INFO L276 IsEmpty]: Start isEmpty. Operand 51615 states and 60592 transitions. [2020-10-14 04:17:32,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2020-10-14 04:17:32,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:17:32,952 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:17:32,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 04:17:32,953 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:17:32,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:17:32,953 INFO L82 PathProgramCache]: Analyzing trace with hash 374942868, now seen corresponding path program 1 times [2020-10-14 04:17:32,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:17:32,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [925415467] [2020-10-14 04:17:32,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:17:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:33,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:33,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:33,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:34,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:38,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:38,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 485 [2020-10-14 04:17:38,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:17:38,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5089 [2020-10-14 04:17:38,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:38,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:38,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:17:38,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 04:17:38,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 04:17:38,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:38,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:17:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:38,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:38,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:38,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:17:38,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:38,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:17:38,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:38,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:38,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:38,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:38,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:38,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:38,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:17:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:38,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:38,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:38,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 04:17:38,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:38,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 04:17:38,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:38,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:17:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 04:17:38,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:38,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 04:17:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:38,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:38,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:38,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 04:17:38,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:38,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 04:17:38,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:38,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:38,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:17:38,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:17:38,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 04:17:38,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:38,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-14 04:17:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:38,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:38,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:38,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 04:17:38,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:38,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 04:17:38,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:38,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:38,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:38,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-14 04:17:38,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:38,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:17:38,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2020-10-14 04:17:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:38,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:38,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:38,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 04:17:38,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:38,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 04:17:38,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:38,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:38,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 04:17:38,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:38,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:17:38,727 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 309 proven. 214 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2020-10-14 04:17:38,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [925415467] [2020-10-14 04:17:38,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:17:38,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:17:38,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029433000] [2020-10-14 04:17:38,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:17:38,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:17:38,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:17:38,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:17:38,730 INFO L87 Difference]: Start difference. First operand 51615 states and 60592 transitions. Second operand 7 states. [2020-10-14 04:17:48,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:17:48,866 INFO L93 Difference]: Finished difference Result 111386 states and 135501 transitions. [2020-10-14 04:17:48,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:17:48,867 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 469 [2020-10-14 04:17:48,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:17:49,044 INFO L225 Difference]: With dead ends: 111386 [2020-10-14 04:17:49,045 INFO L226 Difference]: Without dead ends: 59777 [2020-10-14 04:17:49,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:17:49,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59777 states. [2020-10-14 04:17:49,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59777 to 58719. [2020-10-14 04:17:49,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58719 states. [2020-10-14 04:17:49,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58719 states to 58719 states and 68286 transitions. [2020-10-14 04:17:49,919 INFO L78 Accepts]: Start accepts. Automaton has 58719 states and 68286 transitions. Word has length 469 [2020-10-14 04:17:49,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:17:49,920 INFO L479 AbstractCegarLoop]: Abstraction has 58719 states and 68286 transitions. [2020-10-14 04:17:49,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:17:49,920 INFO L276 IsEmpty]: Start isEmpty. Operand 58719 states and 68286 transitions. [2020-10-14 04:17:49,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2020-10-14 04:17:49,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:17:49,949 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 04:17:49,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 04:17:49,949 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:17:49,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:17:49,950 INFO L82 PathProgramCache]: Analyzing trace with hash 997558273, now seen corresponding path program 1 times [2020-10-14 04:17:49,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:17:49,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411193233] [2020-10-14 04:17:49,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:17:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:50,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:50,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:50,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:53,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:54,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:55,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:55,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 533 [2020-10-14 04:17:55,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:17:55,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 04:17:55,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:55,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:55,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:17:55,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:17:55,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 226 [2020-10-14 04:17:55,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:55,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:17:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:55,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:55,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:55,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:17:55,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:55,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:17:55,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:55,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:55,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:55,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:55,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:55,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:17:55,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:17:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:55,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:55,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:55,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:17:55,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:55,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 04:17:55,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:55,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:55,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:17:55,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:55,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:17:55,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:55,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:17:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:55,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:56,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:56,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 04:17:56,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:56,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1459 [2020-10-14 04:17:56,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:56,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:56,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:17:56,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:17:56,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 224 [2020-10-14 04:17:56,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:56,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-10-14 04:17:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:56,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:57,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:57,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 04:17:57,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:57,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 04:17:57,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:57,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:57,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:57,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 04:17:57,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:57,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:17:57,237 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 294 proven. 109 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 04:17:57,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411193233] [2020-10-14 04:17:57,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:17:57,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:17:57,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141425929] [2020-10-14 04:17:57,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:17:57,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:17:57,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:17:57,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:17:57,240 INFO L87 Difference]: Start difference. First operand 58719 states and 68286 transitions. Second operand 7 states. [2020-10-14 04:18:05,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:18:05,949 INFO L93 Difference]: Finished difference Result 126682 states and 147715 transitions. [2020-10-14 04:18:05,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:18:05,950 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 519 [2020-10-14 04:18:05,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:18:06,076 INFO L225 Difference]: With dead ends: 126682 [2020-10-14 04:18:06,076 INFO L226 Difference]: Without dead ends: 67969 [2020-10-14 04:18:06,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:18:06,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67969 states. [2020-10-14 04:18:07,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67969 to 66545. [2020-10-14 04:18:07,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66545 states. [2020-10-14 04:18:07,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66545 states to 66545 states and 77141 transitions. [2020-10-14 04:18:07,288 INFO L78 Accepts]: Start accepts. Automaton has 66545 states and 77141 transitions. Word has length 519 [2020-10-14 04:18:07,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:18:07,289 INFO L479 AbstractCegarLoop]: Abstraction has 66545 states and 77141 transitions. [2020-10-14 04:18:07,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:18:07,289 INFO L276 IsEmpty]: Start isEmpty. Operand 66545 states and 77141 transitions. [2020-10-14 04:18:07,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2020-10-14 04:18:07,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:18:07,313 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-10-14 04:18:07,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 04:18:07,313 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:18:07,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:18:07,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1758610366, now seen corresponding path program 1 times [2020-10-14 04:18:07,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:18:07,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481389467] [2020-10-14 04:18:07,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:18:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:18:07,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:07,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:08,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:08,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:12,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:18:12,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 664 [2020-10-14 04:18:12,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:18:12,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-14 04:18:12,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:18:12,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:18:12,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:18:12,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 344 [2020-10-14 04:18:12,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 04:18:12,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:18:12,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:18:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:18:12,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:12,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:18:12,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:18:12,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:18:12,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:18:12,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:18:12,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:18:12,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:18:12,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:18:12,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:18:12,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:18:12,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:18:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:18:12,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:12,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:18:12,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:18:12,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:18:12,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 04:18:12,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:18:12,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:18:12,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:18:12,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:18:12,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:18:12,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:18:12,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:18:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:18:12,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:12,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:18:12,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-14 04:18:12,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:18:12,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 04:18:12,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:18:12,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:18:12,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:18:12,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:18:12,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 205 [2020-10-14 04:18:12,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:18:12,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2020-10-14 04:18:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:18:12,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:12,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:18:12,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 04:18:12,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:18:12,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-14 04:18:12,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:18:12,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:18:12,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:18:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:18:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 04:18:12,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:18:13,467 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 502 proven. 2 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2020-10-14 04:18:13,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481389467] [2020-10-14 04:18:13,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:18:13,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:18:13,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271527886] [2020-10-14 04:18:13,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:18:13,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:18:13,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:18:13,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:18:13,470 INFO L87 Difference]: Start difference. First operand 66545 states and 77141 transitions. Second operand 7 states. [2020-10-14 04:18:25,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:18:25,234 INFO L93 Difference]: Finished difference Result 150112 states and 175698 transitions. [2020-10-14 04:18:25,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:18:25,236 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 650 [2020-10-14 04:18:25,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:18:25,401 INFO L225 Difference]: With dead ends: 150112 [2020-10-14 04:18:25,401 INFO L226 Difference]: Without dead ends: 83573 [2020-10-14 04:18:25,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:18:25,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83573 states. [2020-10-14 04:18:26,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83573 to 82151. [2020-10-14 04:18:26,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82151 states. [2020-10-14 04:18:26,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82151 states to 82151 states and 96415 transitions. [2020-10-14 04:18:26,366 INFO L78 Accepts]: Start accepts. Automaton has 82151 states and 96415 transitions. Word has length 650 [2020-10-14 04:18:26,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:18:26,368 INFO L479 AbstractCegarLoop]: Abstraction has 82151 states and 96415 transitions. [2020-10-14 04:18:26,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:18:26,368 INFO L276 IsEmpty]: Start isEmpty. Operand 82151 states and 96415 transitions. [2020-10-14 04:18:26,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2020-10-14 04:18:26,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:18:26,386 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:18:26,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 04:18:26,387 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:18:26,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:18:26,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1544761969, now seen corresponding path program 1 times [2020-10-14 04:18:26,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:18:26,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017293882] [2020-10-14 04:18:26,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:18:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:18:26,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:27,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:27,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:30,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:30,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:30,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:32,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:18:32,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 678 [2020-10-14 04:18:32,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 04:18:32,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5460 [2020-10-14 04:18:32,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:18:32,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:18:32,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:18:32,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:18:32,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-14 04:18:32,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:18:32,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:18:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:18:32,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:32,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:18:32,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:18:32,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:18:32,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:18:32,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:18:32,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:18:32,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:18:32,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:18:32,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:18:32,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:18:32,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:18:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:18:32,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:32,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:18:32,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:18:32,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:18:32,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 04:18:32,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:18:32,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:18:32,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:18:32,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:18:32,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:18:32,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:18:32,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:18:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:18:32,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:32,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:18:32,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-14 04:18:32,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:18:32,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 04:18:32,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:18:32,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:18:32,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:18:32,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:18:32,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 193 [2020-10-14 04:18:32,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:18:32,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-10-14 04:18:32,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:18:32,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:32,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:18:32,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-14 04:18:32,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:18:32,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 04:18:32,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:18:32,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:18:32,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:18:32,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-10-14 04:18:32,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:18:32,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:18:32,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-14 04:18:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:18:32,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:32,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:18:32,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 04:18:32,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:18:32,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 04:18:32,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:18:32,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:18:32,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:18:32,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 04:18:32,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:18:32,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:18:33,055 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 355 proven. 280 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2020-10-14 04:18:33,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017293882] [2020-10-14 04:18:33,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:18:33,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:18:33,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757277082] [2020-10-14 04:18:33,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:18:33,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:18:33,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:18:33,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:18:33,058 INFO L87 Difference]: Start difference. First operand 82151 states and 96415 transitions. Second operand 7 states. [2020-10-14 04:18:42,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:18:42,542 INFO L93 Difference]: Finished difference Result 178438 states and 209737 transitions. [2020-10-14 04:18:42,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:18:42,544 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 662 [2020-10-14 04:18:42,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:18:42,718 INFO L225 Difference]: With dead ends: 178438 [2020-10-14 04:18:42,718 INFO L226 Difference]: Without dead ends: 96293 [2020-10-14 04:18:42,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:18:42,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96293 states. [2020-10-14 04:18:43,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96293 to 94176. [2020-10-14 04:18:43,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94176 states. [2020-10-14 04:18:44,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94176 states to 94176 states and 109682 transitions. [2020-10-14 04:18:44,009 INFO L78 Accepts]: Start accepts. Automaton has 94176 states and 109682 transitions. Word has length 662 [2020-10-14 04:18:44,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:18:44,010 INFO L479 AbstractCegarLoop]: Abstraction has 94176 states and 109682 transitions. [2020-10-14 04:18:44,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:18:44,010 INFO L276 IsEmpty]: Start isEmpty. Operand 94176 states and 109682 transitions. [2020-10-14 04:18:44,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 681 [2020-10-14 04:18:44,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:18:44,026 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:18:44,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 04:18:44,027 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:18:44,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:18:44,027 INFO L82 PathProgramCache]: Analyzing trace with hash -493445057, now seen corresponding path program 1 times [2020-10-14 04:18:44,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:18:44,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2090401249] [2020-10-14 04:18:44,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:18:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:18:44,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:44,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:44,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:49,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:49,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:18:49,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 696 [2020-10-14 04:18:49,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:18:49,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 04:18:49,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:18:49,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:18:49,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:18:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 465 [2020-10-14 04:18:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-14 04:18:49,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:18:49,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:18:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:18:49,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:49,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:18:49,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:18:49,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:18:49,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:18:49,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:18:49,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:18:49,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:18:49,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:18:49,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:18:49,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:18:49,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:18:49,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:18:49,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:49,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:18:49,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:18:49,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:18:49,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 04:18:49,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:18:49,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:18:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:18:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:18:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:18:49,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:18:49,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:18:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:18:49,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:49,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:18:49,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-10-14 04:18:49,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:18:49,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-14 04:18:49,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:18:49,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:18:49,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:18:49,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:18:49,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 326 [2020-10-14 04:18:49,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:18:49,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:18:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:18:49,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:49,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:18:49,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 04:18:49,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:18:49,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 04:18:49,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:18:49,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:18:49,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:18:49,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:18:49,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 04:18:49,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:18:49,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-14 04:18:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:18:49,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:18:49,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:18:49,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 04:18:49,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:18:49,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 04:18:49,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:18:49,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:18:49,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:18:49,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:18:49,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 04:18:49,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:18:51,286 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 454 proven. 2 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2020-10-14 04:18:51,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2090401249] [2020-10-14 04:18:51,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:18:51,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:18:51,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750585971] [2020-10-14 04:18:51,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:18:51,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:18:51,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:18:51,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:18:51,289 INFO L87 Difference]: Start difference. First operand 94176 states and 109682 transitions. Second operand 7 states. [2020-10-14 04:19:00,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:19:00,906 INFO L93 Difference]: Finished difference Result 191193 states and 222558 transitions. [2020-10-14 04:19:00,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:19:00,907 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 680 [2020-10-14 04:19:00,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:19:01,078 INFO L225 Difference]: With dead ends: 191193 [2020-10-14 04:19:01,078 INFO L226 Difference]: Without dead ends: 93487 [2020-10-14 04:19:01,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:19:01,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93487 states. [2020-10-14 04:19:01,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93487 to 88518. [2020-10-14 04:19:01,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88518 states. [2020-10-14 04:19:02,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88518 states to 88518 states and 100897 transitions. [2020-10-14 04:19:02,081 INFO L78 Accepts]: Start accepts. Automaton has 88518 states and 100897 transitions. Word has length 680 [2020-10-14 04:19:02,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:19:02,082 INFO L479 AbstractCegarLoop]: Abstraction has 88518 states and 100897 transitions. [2020-10-14 04:19:02,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:19:02,082 INFO L276 IsEmpty]: Start isEmpty. Operand 88518 states and 100897 transitions. [2020-10-14 04:19:02,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2020-10-14 04:19:02,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:19:02,309 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 04:19:02,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 04:19:02,309 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:19:02,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:19:02,310 INFO L82 PathProgramCache]: Analyzing trace with hash -726823211, now seen corresponding path program 1 times [2020-10-14 04:19:02,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:19:02,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [840144223] [2020-10-14 04:19:02,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:19:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:19:02,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:19:02,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:19:03,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking...