/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/Problem04_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 19:29:53,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 19:29:53,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 19:29:53,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 19:29:53,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 19:29:53,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 19:29:53,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 19:29:53,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 19:29:53,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 19:29:53,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 19:29:53,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 19:29:53,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 19:29:53,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 19:29:53,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 19:29:53,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 19:29:53,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 19:29:53,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 19:29:53,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 19:29:53,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 19:29:53,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 19:29:53,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 19:29:53,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 19:29:53,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 19:29:53,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 19:29:53,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 19:29:53,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 19:29:53,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 19:29:53,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 19:29:53,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 19:29:53,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 19:29:53,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 19:29:53,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 19:29:53,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 19:29:53,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 19:29:53,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 19:29:53,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 19:29:53,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 19:29:53,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 19:29:53,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 19:29:53,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 19:29:53,664 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 19:29:53,665 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 19:29:53,707 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 19:29:53,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 19:29:53,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 19:29:53,710 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 19:29:53,710 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 19:29:53,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 19:29:53,710 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 19:29:53,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 19:29:53,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 19:29:53,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 19:29:53,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 19:29:53,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 19:29:53,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 19:29:53,713 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 19:29:53,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 19:29:53,713 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 19:29:53,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 19:29:53,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 19:29:53,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 19:29:53,714 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 19:29:53,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 19:29:53,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 19:29:53,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 19:29:53,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 19:29:53,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 19:29:53,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 19:29:53,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 19:29:53,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 19:29:53,716 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 19:29:53,716 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 19:29:54,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 19:29:54,026 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 19:29:54,030 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 19:29:54,031 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 19:29:54,031 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 19:29:54,032 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label42.c [2020-10-14 19:29:54,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/294c2e109/e0ac5e17185945f28f8f4d2d655a3ebd/FLAGc2d0f9ce1 [2020-10-14 19:29:54,875 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 19:29:54,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem04_label42.c [2020-10-14 19:29:54,917 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/294c2e109/e0ac5e17185945f28f8f4d2d655a3ebd/FLAGc2d0f9ce1 [2020-10-14 19:29:55,067 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/294c2e109/e0ac5e17185945f28f8f4d2d655a3ebd [2020-10-14 19:29:55,078 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 19:29:55,081 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 19:29:55,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 19:29:55,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 19:29:55,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 19:29:55,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:29:55" (1/1) ... [2020-10-14 19:29:55,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7730d90c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:29:55, skipping insertion in model container [2020-10-14 19:29:55,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:29:55" (1/1) ... [2020-10-14 19:29:55,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 19:29:55,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 19:29:56,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:29:56,839 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 19:29:57,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:29:57,690 INFO L208 MainTranslator]: Completed translation [2020-10-14 19:29:57,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:29:57 WrapperNode [2020-10-14 19:29:57,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 19:29:57,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 19:29:57,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 19:29:57,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 19:29:57,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:29:57" (1/1) ... [2020-10-14 19:29:57,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:29:57" (1/1) ... [2020-10-14 19:29:57,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:29:57" (1/1) ... [2020-10-14 19:29:57,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:29:57" (1/1) ... [2020-10-14 19:29:57,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:29:57" (1/1) ... [2020-10-14 19:29:57,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:29:57" (1/1) ... [2020-10-14 19:29:57,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:29:57" (1/1) ... [2020-10-14 19:29:57,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 19:29:57,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 19:29:57,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 19:29:57,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 19:29:57,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:29:57" (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 19:29:58,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 19:29:58,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 19:29:58,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 19:29:58,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 19:29:58,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 19:29:58,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 19:29:58,016 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 19:29:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 19:29:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 19:29:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 19:29:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 19:29:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 19:29:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 19:29:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 19:29:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 19:29:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 19:29:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 19:30:01,961 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 19:30:01,962 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 19:30:01,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:30:01 BoogieIcfgContainer [2020-10-14 19:30:01,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 19:30:01,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 19:30:01,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 19:30:01,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 19:30:01,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:29:55" (1/3) ... [2020-10-14 19:30:01,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c94f802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:30:01, skipping insertion in model container [2020-10-14 19:30:01,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:29:57" (2/3) ... [2020-10-14 19:30:01,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c94f802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:30:01, skipping insertion in model container [2020-10-14 19:30:01,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:30:01" (3/3) ... [2020-10-14 19:30:01,997 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem04_label42.c [2020-10-14 19:30:02,007 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 19:30:02,018 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 19:30:02,031 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 19:30:02,057 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 19:30:02,058 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 19:30:02,058 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 19:30:02,058 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 19:30:02,058 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 19:30:02,058 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 19:30:02,058 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 19:30:02,058 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 19:30:02,092 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states. [2020-10-14 19:30:02,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 827 [2020-10-14 19:30:02,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:30:02,142 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:02,143 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:30:02,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:30:02,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1829332667, now seen corresponding path program 1 times [2020-10-14 19:30:02,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:30:02,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786953297] [2020-10-14 19:30:02,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:30:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:30:03,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:30:04,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:30:07,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:30:07,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 840 [2020-10-14 19:30:07,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:30:07,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-14 19:30:07,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:30:07,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:30:07,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 19:30:07,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:30:07,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 834 [2020-10-14 19:30:07,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 19:30:08,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:30:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:30:08,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:30:08,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:30:08,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:30:08,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:30:08,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 19:30:08,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:30:08,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:30:08,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:30:08,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:30:08,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:30:08,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:30:09,269 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 19:30:09,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786953297] [2020-10-14 19:30:09,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:30:09,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 19:30:09,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208658176] [2020-10-14 19:30:09,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:30:09,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:30:09,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:30:09,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:30:09,292 INFO L87 Difference]: Start difference. First operand 906 states. Second operand 5 states. [2020-10-14 19:30:09,489 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-14 19:30:20,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:30:20,858 INFO L93 Difference]: Finished difference Result 3521 states and 6826 transitions. [2020-10-14 19:30:20,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 19:30:20,860 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 826 [2020-10-14 19:30:20,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:30:20,914 INFO L225 Difference]: With dead ends: 3521 [2020-10-14 19:30:20,915 INFO L226 Difference]: Without dead ends: 2547 [2020-10-14 19:30:20,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:30:20,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2020-10-14 19:30:21,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 2534. [2020-10-14 19:30:21,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2534 states. [2020-10-14 19:30:21,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2534 states to 2534 states and 4139 transitions. [2020-10-14 19:30:21,123 INFO L78 Accepts]: Start accepts. Automaton has 2534 states and 4139 transitions. Word has length 826 [2020-10-14 19:30:21,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:30:21,128 INFO L479 AbstractCegarLoop]: Abstraction has 2534 states and 4139 transitions. [2020-10-14 19:30:21,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:30:21,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2534 states and 4139 transitions. [2020-10-14 19:30:21,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 842 [2020-10-14 19:30:21,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:30:21,164 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:21,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 19:30:21,165 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:30:21,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:30:21,165 INFO L82 PathProgramCache]: Analyzing trace with hash 3135252, now seen corresponding path program 1 times [2020-10-14 19:30:21,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:30:21,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664998465] [2020-10-14 19:30:21,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:30:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:30:21,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:30:21,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:30:26,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:30:26,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 857 [2020-10-14 19:30:26,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:30:26,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5122 [2020-10-14 19:30:26,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:30:26,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:30:26,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 19:30:26,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 19:30:26,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 831 [2020-10-14 19:30:26,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 19:30:27,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:30:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:30:27,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:30:27,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:30:27,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:30:27,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:30:27,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 19:30:27,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:30:27,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:30:27,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:30:27,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:30:27,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:30:27,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:30:27,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:30:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:30:27,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:30:27,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:30:27,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:30:27,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:30:27,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 19:30:27,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:30:27,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:30:27,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:30:27,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:30:27,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 19:30:27,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:30:29,583 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:30:29,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664998465] [2020-10-14 19:30:29,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:30:29,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:30:29,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835117987] [2020-10-14 19:30:29,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:30:29,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:30:29,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:30:29,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:30:29,588 INFO L87 Difference]: Start difference. First operand 2534 states and 4139 transitions. Second operand 5 states. [2020-10-14 19:30:38,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:30:38,192 INFO L93 Difference]: Finished difference Result 7614 states and 12574 transitions. [2020-10-14 19:30:38,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:30:38,192 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 841 [2020-10-14 19:30:38,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:30:38,223 INFO L225 Difference]: With dead ends: 7614 [2020-10-14 19:30:38,223 INFO L226 Difference]: Without dead ends: 5086 [2020-10-14 19:30:38,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 5 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:30:38,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5086 states. [2020-10-14 19:30:38,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5086 to 5069. [2020-10-14 19:30:38,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5069 states. [2020-10-14 19:30:38,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5069 states to 5069 states and 7754 transitions. [2020-10-14 19:30:38,383 INFO L78 Accepts]: Start accepts. Automaton has 5069 states and 7754 transitions. Word has length 841 [2020-10-14 19:30:38,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:30:38,385 INFO L479 AbstractCegarLoop]: Abstraction has 5069 states and 7754 transitions. [2020-10-14 19:30:38,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:30:38,385 INFO L276 IsEmpty]: Start isEmpty. Operand 5069 states and 7754 transitions. [2020-10-14 19:30:38,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 893 [2020-10-14 19:30:38,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:30:38,410 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:38,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 19:30:38,410 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:30:38,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:30:38,411 INFO L82 PathProgramCache]: Analyzing trace with hash -2112551658, now seen corresponding path program 1 times [2020-10-14 19:30:38,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:30:38,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [638097671] [2020-10-14 19:30:38,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:30:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:30:38,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:30:39,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:30:41,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:30:43,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:30:43,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 908 [2020-10-14 19:30:43,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:30:43,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 19:30:43,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:30:43,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:30:43,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 19:30:43,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-14 19:30:43,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 831 [2020-10-14 19:30:43,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:30:43,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:30:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:30:43,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:30:43,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:30:43,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:30:43,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:30:43,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:30:43,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:30:43,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:30:43,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:30:43,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:30:43,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:30:43,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:30:43,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:30:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:30:43,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:30:44,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:30:44,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 19:30:44,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:30:44,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 19:30:44,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:30:44,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:30:44,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:30:44,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:30:44,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 19:30:44,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:30:45,058 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 62 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:30:45,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [638097671] [2020-10-14 19:30:45,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:30:45,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 19:30:45,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943163072] [2020-10-14 19:30:45,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 19:30:45,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:30:45,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 19:30:45,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:30:45,062 INFO L87 Difference]: Start difference. First operand 5069 states and 7754 transitions. Second operand 6 states. [2020-10-14 19:30:54,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:30:54,864 INFO L93 Difference]: Finished difference Result 15219 states and 23632 transitions. [2020-10-14 19:30:54,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:30:54,866 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 892 [2020-10-14 19:30:54,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:30:54,914 INFO L225 Difference]: With dead ends: 15219 [2020-10-14 19:30:54,914 INFO L226 Difference]: Without dead ends: 10156 [2020-10-14 19:30:54,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:30:54,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10156 states. [2020-10-14 19:30:55,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10156 to 10148. [2020-10-14 19:30:55,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10148 states. [2020-10-14 19:30:55,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10148 states to 10148 states and 14149 transitions. [2020-10-14 19:30:55,179 INFO L78 Accepts]: Start accepts. Automaton has 10148 states and 14149 transitions. Word has length 892 [2020-10-14 19:30:55,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:30:55,181 INFO L479 AbstractCegarLoop]: Abstraction has 10148 states and 14149 transitions. [2020-10-14 19:30:55,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 19:30:55,182 INFO L276 IsEmpty]: Start isEmpty. Operand 10148 states and 14149 transitions. [2020-10-14 19:30:55,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 900 [2020-10-14 19:30:55,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:30:55,229 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:55,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 19:30:55,229 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:30:55,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:30:55,230 INFO L82 PathProgramCache]: Analyzing trace with hash -303551008, now seen corresponding path program 1 times [2020-10-14 19:30:55,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:30:55,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1589010723] [2020-10-14 19:30:55,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:30:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:30:55,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:30:56,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:30:58,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:31:00,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:31:00,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 915 [2020-10-14 19:31:00,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:31:00,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-14 19:31:00,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:31:00,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:31:00,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 19:31:00,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-14 19:31:00,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 831 [2020-10-14 19:31:00,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:31:00,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:31:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:31:00,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:31:00,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:31:00,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:31:00,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:31:00,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:31:00,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:31:00,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:31:00,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:31:00,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:31:00,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:31:00,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:31:00,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:31:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:31:00,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:31:00,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:31:00,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 19:31:00,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:31:00,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 19:31:00,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:31:00,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:31:00,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:31:00,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:31:00,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 19:31:00,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:31:01,295 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 69 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:31:01,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1589010723] [2020-10-14 19:31:01,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:31:01,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:31:01,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335298616] [2020-10-14 19:31:01,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:31:01,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:31:01,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:31:01,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:31:01,299 INFO L87 Difference]: Start difference. First operand 10148 states and 14149 transitions. Second operand 5 states. [2020-10-14 19:31:10,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:31:10,428 INFO L93 Difference]: Finished difference Result 29574 states and 41948 transitions. [2020-10-14 19:31:10,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:31:10,429 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 899 [2020-10-14 19:31:10,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:31:10,515 INFO L225 Difference]: With dead ends: 29574 [2020-10-14 19:31:10,515 INFO L226 Difference]: Without dead ends: 19432 [2020-10-14 19:31:10,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:31:10,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19432 states. [2020-10-14 19:31:11,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19432 to 19424. [2020-10-14 19:31:11,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19424 states. [2020-10-14 19:31:11,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19424 states to 19424 states and 25516 transitions. [2020-10-14 19:31:11,044 INFO L78 Accepts]: Start accepts. Automaton has 19424 states and 25516 transitions. Word has length 899 [2020-10-14 19:31:11,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:31:11,046 INFO L479 AbstractCegarLoop]: Abstraction has 19424 states and 25516 transitions. [2020-10-14 19:31:11,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:31:11,046 INFO L276 IsEmpty]: Start isEmpty. Operand 19424 states and 25516 transitions. [2020-10-14 19:31:11,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2020-10-14 19:31:11,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:31:11,101 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:31:11,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 19:31:11,101 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:31:11,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:31:11,102 INFO L82 PathProgramCache]: Analyzing trace with hash -221397498, now seen corresponding path program 1 times [2020-10-14 19:31:11,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:31:11,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407917483] [2020-10-14 19:31:11,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:31:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:31:11,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:31:11,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:31:16,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:31:16,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 916 [2020-10-14 19:31:16,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:31:16,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 19:31:16,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:31:16,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:31:16,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 19:31:16,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 19:31:16,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 593 [2020-10-14 19:31:16,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:31:17,967 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-10-14 19:31:18,142 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2020-10-14 19:31:18,363 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 56 [2020-10-14 19:31:18,626 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 56 [2020-10-14 19:31:18,985 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 52 [2020-10-14 19:31:19,262 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 48 [2020-10-14 19:31:19,502 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 44 [2020-10-14 19:31:19,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:31:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:31:19,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:31:19,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:31:19,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:31:19,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:31:19,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:31:19,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:31:19,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:31:19,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:31:19,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:31:19,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:31:19,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:31:19,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:31:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:31:19,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:31:20,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:31:20,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 19:31:20,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:31:20,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 19:31:20,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:31:20,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:31:20,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:31:20,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:31:20,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 19:31:20,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:31:25,208 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 70 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:31:25,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407917483] [2020-10-14 19:31:25,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:31:25,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 19:31:25,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726299784] [2020-10-14 19:31:25,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 19:31:25,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:31:25,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 19:31:25,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2020-10-14 19:31:25,212 INFO L87 Difference]: Start difference. First operand 19424 states and 25516 transitions. Second operand 17 states. [2020-10-14 19:31:25,816 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-14 19:31:26,017 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-14 19:31:26,498 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 123 [2020-10-14 19:31:27,088 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 120 [2020-10-14 19:31:28,020 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 117 [2020-10-14 19:31:29,379 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-14 19:31:30,042 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 108 [2020-10-14 19:31:38,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:31:38,897 INFO L93 Difference]: Finished difference Result 39436 states and 52314 transitions. [2020-10-14 19:31:38,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 19:31:38,898 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 900 [2020-10-14 19:31:38,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:31:38,959 INFO L225 Difference]: With dead ends: 39436 [2020-10-14 19:31:38,959 INFO L226 Difference]: Without dead ends: 20018 [2020-10-14 19:31:39,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=171, Invalid=585, Unknown=0, NotChecked=0, Total=756 [2020-10-14 19:31:39,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20018 states. [2020-10-14 19:31:39,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20018 to 20010. [2020-10-14 19:31:39,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20010 states. [2020-10-14 19:31:39,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20010 states to 20010 states and 26113 transitions. [2020-10-14 19:31:39,375 INFO L78 Accepts]: Start accepts. Automaton has 20010 states and 26113 transitions. Word has length 900 [2020-10-14 19:31:39,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:31:39,377 INFO L479 AbstractCegarLoop]: Abstraction has 20010 states and 26113 transitions. [2020-10-14 19:31:39,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 19:31:39,377 INFO L276 IsEmpty]: Start isEmpty. Operand 20010 states and 26113 transitions. [2020-10-14 19:31:39,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 916 [2020-10-14 19:31:39,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:31:39,447 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:31:39,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 19:31:39,447 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:31:39,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:31:39,448 INFO L82 PathProgramCache]: Analyzing trace with hash -568355714, now seen corresponding path program 1 times [2020-10-14 19:31:39,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:31:39,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1138397958] [2020-10-14 19:31:39,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:31:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:31:39,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:31:39,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:31:39,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:31:42,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:31:42,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:31:44,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:31:44,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 935 [2020-10-14 19:31:44,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 19:31:44,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5065 [2020-10-14 19:31:44,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:31:44,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:31:44,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 19:31:44,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-14 19:31:44,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 735 [2020-10-14 19:31:44,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:31:48,529 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-10-14 19:31:48,643 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-10-14 19:31:48,763 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-10-14 19:31:49,013 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 38 [2020-10-14 19:31:49,190 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 48 [2020-10-14 19:31:49,356 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2020-10-14 19:31:49,502 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2020-10-14 19:31:49,673 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 44 [2020-10-14 19:31:49,897 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 44 [2020-10-14 19:31:50,046 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 36 [2020-10-14 19:31:50,188 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 39 [2020-10-14 19:31:50,339 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 40 [2020-10-14 19:31:50,552 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 40 [2020-10-14 19:31:50,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:31:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:31:50,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:31:50,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:31:50,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:31:50,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:31:50,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:31:50,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:31:50,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:31:50,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:31:50,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:31:50,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:31:50,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:31:50,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:31:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:31:50,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:31:50,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:31:50,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:31:50,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:31:50,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:31:50,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:31:50,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:31:50,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:31:50,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:31:50,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:31:50,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:31:50,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 19:31:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:31:50,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:31:50,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:31:50,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 19:31:50,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:31:50,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:31:50,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:31:50,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:31:50,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:31:50,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:31:50,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:31:50,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:31:50,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 19:31:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:31:50,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:31:50,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:31:50,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-14 19:31:50,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:31:50,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 19:31:50,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:31:50,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:31:50,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:31:50,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:31:50,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 19:31:50,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:31:58,880 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 83 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-14 19:31:58,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1138397958] [2020-10-14 19:31:58,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:31:58,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 19:31:58,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107895338] [2020-10-14 19:31:58,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 19:31:58,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:31:58,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 19:31:58,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2020-10-14 19:31:58,883 INFO L87 Difference]: Start difference. First operand 20010 states and 26113 transitions. Second operand 19 states. [2020-10-14 19:31:59,910 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-14 19:32:00,085 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-14 19:32:02,783 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-14 19:32:06,141 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-14 19:32:06,333 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-14 19:32:07,160 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 104 [2020-10-14 19:32:12,373 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-14 19:32:12,564 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-14 19:32:14,722 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 107 [2020-10-14 19:32:15,086 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2020-10-14 19:32:19,017 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-14 19:32:19,188 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-14 19:32:19,550 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-14 19:32:20,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:32:20,733 INFO L93 Difference]: Finished difference Result 40748 states and 53813 transitions. [2020-10-14 19:32:20,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 19:32:20,734 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 915 [2020-10-14 19:32:20,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:32:20,799 INFO L225 Difference]: With dead ends: 40748 [2020-10-14 19:32:20,799 INFO L226 Difference]: Without dead ends: 20744 [2020-10-14 19:32:20,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2020-10-14 19:32:20,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20744 states. [2020-10-14 19:32:21,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20744 to 20736. [2020-10-14 19:32:21,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20736 states. [2020-10-14 19:32:21,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20736 states to 20736 states and 26858 transitions. [2020-10-14 19:32:21,140 INFO L78 Accepts]: Start accepts. Automaton has 20736 states and 26858 transitions. Word has length 915 [2020-10-14 19:32:21,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:32:21,142 INFO L479 AbstractCegarLoop]: Abstraction has 20736 states and 26858 transitions. [2020-10-14 19:32:21,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 19:32:21,142 INFO L276 IsEmpty]: Start isEmpty. Operand 20736 states and 26858 transitions. [2020-10-14 19:32:21,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 960 [2020-10-14 19:32:21,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:32:21,186 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:32:21,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 19:32:21,186 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:32:21,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:32:21,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1037566663, now seen corresponding path program 1 times [2020-10-14 19:32:21,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:32:21,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570851600] [2020-10-14 19:32:21,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:32:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:32:21,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:32:21,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:32:21,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:32:25,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:32:26,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:32:26,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 977 [2020-10-14 19:32:26,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:32:26,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 19:32:26,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:32:26,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:32:26,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 19:32:26,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-14 19:32:26,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 831 [2020-10-14 19:32:26,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:32:26,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:32:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:32:26,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:32:26,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:32:26,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:32:26,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:32:26,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:32:26,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:32:26,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:32:26,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:32:26,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:32:26,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:32:26,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:32:26,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:32:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:32:26,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:32:26,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:32:26,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:32:26,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:32:26,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:32:26,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:32:26,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:32:26,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:32:26,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:32:26,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:32:26,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:32:26,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 19:32:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:32:26,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:32:26,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:32:26,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 19:32:26,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:32:26,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 19:32:26,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:32:26,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:32:26,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:32:26,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:32:26,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 19:32:26,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:32:27,649 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 19:32:27,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570851600] [2020-10-14 19:32:27,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:32:27,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:32:27,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532430150] [2020-10-14 19:32:27,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:32:27,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:32:27,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:32:27,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:32:27,652 INFO L87 Difference]: Start difference. First operand 20736 states and 26858 transitions. Second operand 5 states. [2020-10-14 19:32:37,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:32:37,290 INFO L93 Difference]: Finished difference Result 60574 states and 80341 transitions. [2020-10-14 19:32:37,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:32:37,290 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 959 [2020-10-14 19:32:37,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:32:37,390 INFO L225 Difference]: With dead ends: 60574 [2020-10-14 19:32:37,390 INFO L226 Difference]: Without dead ends: 39844 [2020-10-14 19:32:37,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:32:37,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39844 states. [2020-10-14 19:32:37,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39844 to 39252. [2020-10-14 19:32:37,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39252 states. [2020-10-14 19:32:38,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39252 states to 39252 states and 50871 transitions. [2020-10-14 19:32:38,002 INFO L78 Accepts]: Start accepts. Automaton has 39252 states and 50871 transitions. Word has length 959 [2020-10-14 19:32:38,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:32:38,003 INFO L479 AbstractCegarLoop]: Abstraction has 39252 states and 50871 transitions. [2020-10-14 19:32:38,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:32:38,003 INFO L276 IsEmpty]: Start isEmpty. Operand 39252 states and 50871 transitions. [2020-10-14 19:32:38,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1026 [2020-10-14 19:32:38,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:32:38,064 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:32:38,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 19:32:38,064 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:32:38,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:32:38,065 INFO L82 PathProgramCache]: Analyzing trace with hash 344927396, now seen corresponding path program 1 times [2020-10-14 19:32:38,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:32:38,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [499704643] [2020-10-14 19:32:38,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:32:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:32:38,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:32:38,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:32:40,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:32:43,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:32:43,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1041 [2020-10-14 19:32:43,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:32:43,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5199 [2020-10-14 19:32:43,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:32:43,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:32:43,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 19:32:43,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-14 19:32:43,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 831 [2020-10-14 19:32:43,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:32:43,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:32:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:32:43,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:32:43,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:32:43,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:32:43,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:32:43,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:32:43,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:32:43,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:32:43,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:32:43,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:32:43,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:32:43,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:32:44,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:32:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:32:44,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:32:44,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:32:44,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-14 19:32:44,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:32:44,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-14 19:32:44,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:32:44,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:32:44,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:32:44,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:32:44,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 194 [2020-10-14 19:32:44,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 19:32:45,418 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 195 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:32:45,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [499704643] [2020-10-14 19:32:45,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:32:45,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:32:45,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204911068] [2020-10-14 19:32:45,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:32:45,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:32:45,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:32:45,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:32:45,421 INFO L87 Difference]: Start difference. First operand 39252 states and 50871 transitions. Second operand 5 states. [2020-10-14 19:32:54,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:32:54,035 INFO L93 Difference]: Finished difference Result 94477 states and 125558 transitions. [2020-10-14 19:32:54,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:32:54,036 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1025 [2020-10-14 19:32:54,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:32:54,212 INFO L225 Difference]: With dead ends: 94477 [2020-10-14 19:32:54,212 INFO L226 Difference]: Without dead ends: 55231 [2020-10-14 19:32:54,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:32:54,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55231 states. [2020-10-14 19:32:55,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55231 to 55223. [2020-10-14 19:32:55,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55223 states. [2020-10-14 19:32:55,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55223 states to 55223 states and 72797 transitions. [2020-10-14 19:32:55,197 INFO L78 Accepts]: Start accepts. Automaton has 55223 states and 72797 transitions. Word has length 1025 [2020-10-14 19:32:55,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:32:55,198 INFO L479 AbstractCegarLoop]: Abstraction has 55223 states and 72797 transitions. [2020-10-14 19:32:55,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:32:55,199 INFO L276 IsEmpty]: Start isEmpty. Operand 55223 states and 72797 transitions. [2020-10-14 19:32:55,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1264 [2020-10-14 19:32:55,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:32:55,580 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:32:55,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 19:32:55,580 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:32:55,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:32:55,581 INFO L82 PathProgramCache]: Analyzing trace with hash -590943851, now seen corresponding path program 1 times [2020-10-14 19:32:55,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:32:55,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [102933423] [2020-10-14 19:32:55,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:32:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:32:55,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:32:55,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:33:00,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:33:00,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1283 [2020-10-14 19:33:00,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:33:00,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 19:33:00,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:33:00,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:33:00,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:33:00,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 19:33:00,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 424 [2020-10-14 19:33:00,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:33:00,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:33:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:33:00,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:33:00,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:33:00,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:33:00,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:33:00,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:33:00,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:33:00,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:33:00,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:33:00,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:33:00,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:33:00,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:33:00,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:33:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:33:00,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:33:00,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:33:00,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:33:00,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:33:00,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 19:33:00,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:33:00,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:33:00,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:33:00,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:33:00,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 19:33:00,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:33:00,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 19:33:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:33:00,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:33:01,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:33:01,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 425 [2020-10-14 19:33:01,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:33:01,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 555 [2020-10-14 19:33:01,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:33:01,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:33:01,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:33:01,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:33:01,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 425 [2020-10-14 19:33:01,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:33:01,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 19:33:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:33:01,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:33:01,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:33:01,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-14 19:33:01,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:33:01,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-10-14 19:33:01,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:33:01,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:33:01,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 19:33:01,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:33:01,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-14 19:33:01,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:33:03,032 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 440 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 19:33:03,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [102933423] [2020-10-14 19:33:03,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:33:03,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:33:03,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540752094] [2020-10-14 19:33:03,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:33:03,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:33:03,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:33:03,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:33:03,035 INFO L87 Difference]: Start difference. First operand 55223 states and 72797 transitions. Second operand 7 states. [2020-10-14 19:33:18,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:33:18,347 INFO L93 Difference]: Finished difference Result 126038 states and 167962 transitions. [2020-10-14 19:33:18,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 19:33:18,348 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1263 [2020-10-14 19:33:18,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:33:18,578 INFO L225 Difference]: With dead ends: 126038 [2020-10-14 19:33:18,579 INFO L226 Difference]: Without dead ends: 70821 [2020-10-14 19:33:18,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 19:33:18,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70821 states. [2020-10-14 19:33:19,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70821 to 64707. [2020-10-14 19:33:19,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64707 states. [2020-10-14 19:33:20,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64707 states to 64707 states and 79789 transitions. [2020-10-14 19:33:20,003 INFO L78 Accepts]: Start accepts. Automaton has 64707 states and 79789 transitions. Word has length 1263 [2020-10-14 19:33:20,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:33:20,004 INFO L479 AbstractCegarLoop]: Abstraction has 64707 states and 79789 transitions. [2020-10-14 19:33:20,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:33:20,004 INFO L276 IsEmpty]: Start isEmpty. Operand 64707 states and 79789 transitions. [2020-10-14 19:33:20,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1323 [2020-10-14 19:33:20,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:33:20,144 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:33:20,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 19:33:20,144 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:33:20,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:33:20,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1978688678, now seen corresponding path program 1 times [2020-10-14 19:33:20,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:33:20,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [134682679] [2020-10-14 19:33:20,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:33:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:33:20,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:33:20,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:33:20,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:33:20,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:33:25,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:33:25,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1344 [2020-10-14 19:33:25,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:33:25,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5068 [2020-10-14 19:33:25,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:33:25,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:33:25,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:33:25,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 19:33:25,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 424 [2020-10-14 19:33:25,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:33:25,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:33:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:33:25,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:33:25,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:33:25,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:33:25,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:33:25,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:33:25,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:33:25,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:33:25,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:33:25,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:33:25,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:33:25,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:33:25,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:33:25,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:33:25,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:33:25,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:33:25,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 19:33:25,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:33:25,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:33:25,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:33:25,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:33:25,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:33:25,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:33:25,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:33:25,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:33:25,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 19:33:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:33:25,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:33:25,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:33:25,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 19:33:25,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:33:25,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 19:33:25,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:33:25,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:33:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:33:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:33:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 19:33:25,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:33:25,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 19:33:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:33:25,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking...