/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 01:09:45,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 01:09:45,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 01:09:45,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 01:09:45,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 01:09:45,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 01:09:45,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 01:09:45,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 01:09:45,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 01:09:45,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 01:09:45,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 01:09:45,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 01:09:45,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 01:09:45,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 01:09:45,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 01:09:45,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 01:09:45,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 01:09:45,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 01:09:45,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 01:09:45,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 01:09:45,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 01:09:45,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 01:09:45,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 01:09:45,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 01:09:45,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 01:09:45,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 01:09:45,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 01:09:45,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 01:09:45,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 01:09:45,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 01:09:45,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 01:09:45,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 01:09:45,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 01:09:45,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 01:09:45,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 01:09:45,922 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 01:09:45,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 01:09:45,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 01:09:45,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 01:09:45,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 01:09:45,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 01:09:45,926 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 01:09:45,973 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 01:09:45,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 01:09:45,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 01:09:45,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 01:09:45,981 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 01:09:45,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 01:09:45,984 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 01:09:45,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 01:09:45,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 01:09:45,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 01:09:45,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 01:09:45,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 01:09:45,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 01:09:45,985 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 01:09:45,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 01:09:45,986 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 01:09:45,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 01:09:45,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 01:09:45,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 01:09:45,990 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 01:09:45,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 01:09:45,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 01:09:45,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 01:09:45,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 01:09:45,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 01:09:45,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 01:09:45,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 01:09:45,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 01:09:45,992 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 01:09:45,992 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 01:09:46,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 01:09:46,315 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 01:09:46,320 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 01:09:46,323 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 01:09:46,323 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 01:09:46,324 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label50.c [2020-10-14 01:09:46,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ddc75e0f7/2179385134204b6f85182b32ef821f51/FLAG528b488a3 [2020-10-14 01:09:47,190 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 01:09:47,191 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem04_label50.c [2020-10-14 01:09:47,235 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ddc75e0f7/2179385134204b6f85182b32ef821f51/FLAG528b488a3 [2020-10-14 01:09:47,747 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ddc75e0f7/2179385134204b6f85182b32ef821f51 [2020-10-14 01:09:47,756 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 01:09:47,758 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 01:09:47,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 01:09:47,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 01:09:47,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 01:09:47,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:09:47" (1/1) ... [2020-10-14 01:09:47,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f0c700e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:09:47, skipping insertion in model container [2020-10-14 01:09:47,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:09:47" (1/1) ... [2020-10-14 01:09:47,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 01:09:47,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 01:09:49,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 01:09:49,480 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 01:09:50,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 01:09:50,174 INFO L208 MainTranslator]: Completed translation [2020-10-14 01:09:50,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:09:50 WrapperNode [2020-10-14 01:09:50,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 01:09:50,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 01:09:50,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 01:09:50,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 01:09:50,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:09:50" (1/1) ... [2020-10-14 01:09:50,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:09:50" (1/1) ... [2020-10-14 01:09:50,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:09:50" (1/1) ... [2020-10-14 01:09:50,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:09:50" (1/1) ... [2020-10-14 01:09:50,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:09:50" (1/1) ... [2020-10-14 01:09:50,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:09:50" (1/1) ... [2020-10-14 01:09:50,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:09:50" (1/1) ... [2020-10-14 01:09:50,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 01:09:50,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 01:09:50,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 01:09:50,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 01:09:50,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:09:50" (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 01:09:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 01:09:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 01:09:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 01:09:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 01:09:50,584 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 01:09:50,584 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 01:09:50,584 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 01:09:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 01:09:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 01:09:50,585 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 01:09:50,585 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 01:09:50,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 01:09:50,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 01:09:50,585 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 01:09:50,585 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 01:09:50,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 01:09:50,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 01:09:54,779 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 01:09:54,779 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 01:09:54,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:09:54 BoogieIcfgContainer [2020-10-14 01:09:54,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 01:09:54,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 01:09:54,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 01:09:54,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 01:09:54,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:09:47" (1/3) ... [2020-10-14 01:09:54,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d3f916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:09:54, skipping insertion in model container [2020-10-14 01:09:54,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:09:50" (2/3) ... [2020-10-14 01:09:54,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d3f916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:09:54, skipping insertion in model container [2020-10-14 01:09:54,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:09:54" (3/3) ... [2020-10-14 01:09:54,806 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem04_label50.c [2020-10-14 01:09:54,816 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 01:09:54,825 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 01:09:54,839 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 01:09:54,868 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 01:09:54,868 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 01:09:54,868 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 01:09:54,868 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 01:09:54,869 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 01:09:54,869 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 01:09:54,869 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 01:09:54,869 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 01:09:54,907 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states. [2020-10-14 01:09:54,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2020-10-14 01:09:54,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:09:54,959 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, 1, 1] [2020-10-14 01:09:54,960 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:09:54,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:09:54,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1347224739, now seen corresponding path program 1 times [2020-10-14 01:09:54,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:09:54,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689918300] [2020-10-14 01:09:54,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:09:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:09:56,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:56,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:00,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:00,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 842 [2020-10-14 01:10:00,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:10:00,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-14 01:10:00,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:00,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:00,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 01:10:00,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:10:00,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 836 [2020-10-14 01:10:00,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 01:10:01,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:10:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:01,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:01,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:01,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:10:01,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:01,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 01:10:01,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:01,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:01,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:10:01,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:10:01,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:10:01,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:10:02,418 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 01:10:02,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1689918300] [2020-10-14 01:10:02,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:10:02,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 01:10:02,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614390539] [2020-10-14 01:10:02,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 01:10:02,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:10:02,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 01:10:02,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 01:10:02,442 INFO L87 Difference]: Start difference. First operand 906 states. Second operand 5 states. [2020-10-14 01:10:10,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:10:10,889 INFO L93 Difference]: Finished difference Result 2672 states and 5137 transitions. [2020-10-14 01:10:10,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 01:10:10,891 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 828 [2020-10-14 01:10:10,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:10:10,947 INFO L225 Difference]: With dead ends: 2672 [2020-10-14 01:10:10,948 INFO L226 Difference]: Without dead ends: 1702 [2020-10-14 01:10:10,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 01:10:10,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2020-10-14 01:10:11,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1689. [2020-10-14 01:10:11,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1689 states. [2020-10-14 01:10:11,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 3029 transitions. [2020-10-14 01:10:11,137 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 3029 transitions. Word has length 828 [2020-10-14 01:10:11,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:10:11,141 INFO L479 AbstractCegarLoop]: Abstraction has 1689 states and 3029 transitions. [2020-10-14 01:10:11,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 01:10:11,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 3029 transitions. [2020-10-14 01:10:11,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2020-10-14 01:10:11,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:10:11,170 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:10:11,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 01:10:11,170 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:10:11,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:10:11,171 INFO L82 PathProgramCache]: Analyzing trace with hash -494477710, now seen corresponding path program 1 times [2020-10-14 01:10:11,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:10:11,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846989231] [2020-10-14 01:10:11,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:10:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:11,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:11,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:16,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:16,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 852 [2020-10-14 01:10:16,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:10:16,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-14 01:10:16,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:16,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:16,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:10:16,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:10:16,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 01:10:16,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:10:16,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:10:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:16,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:16,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:16,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:10:16,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:16,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 01:10:16,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:16,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:10:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:10:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:10:16,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:10:16,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:10:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:16,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:16,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:16,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 01:10:16,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:16,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 01:10:16,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:16,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:16,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:10:16,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:10:16,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 01:10:16,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:10:17,342 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:10:17,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1846989231] [2020-10-14 01:10:17,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:10:17,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 01:10:17,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564673287] [2020-10-14 01:10:17,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:10:17,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:10:17,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:10:17,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:10:17,347 INFO L87 Difference]: Start difference. First operand 1689 states and 3029 transitions. Second operand 7 states. [2020-10-14 01:10:27,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:10:27,483 INFO L93 Difference]: Finished difference Result 5177 states and 9316 transitions. [2020-10-14 01:10:27,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:10:27,484 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 836 [2020-10-14 01:10:27,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:10:27,503 INFO L225 Difference]: With dead ends: 5177 [2020-10-14 01:10:27,503 INFO L226 Difference]: Without dead ends: 3494 [2020-10-14 01:10:27,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:10:27,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2020-10-14 01:10:27,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 3410. [2020-10-14 01:10:27,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3410 states. [2020-10-14 01:10:27,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 5196 transitions. [2020-10-14 01:10:27,621 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 5196 transitions. Word has length 836 [2020-10-14 01:10:27,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:10:27,621 INFO L479 AbstractCegarLoop]: Abstraction has 3410 states and 5196 transitions. [2020-10-14 01:10:27,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:10:27,622 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 5196 transitions. [2020-10-14 01:10:27,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 843 [2020-10-14 01:10:27,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:10:27,660 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2020-10-14 01:10:27,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 01:10:27,661 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:10:27,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:10:27,662 INFO L82 PathProgramCache]: Analyzing trace with hash 2140105766, now seen corresponding path program 1 times [2020-10-14 01:10:27,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:10:27,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1043268501] [2020-10-14 01:10:27,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:10:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:27,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:28,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:30,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:31,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:32,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:32,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 858 [2020-10-14 01:10:32,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:10:32,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-14 01:10:32,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:32,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:32,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:10:32,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:10:32,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 01:10:32,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:10:32,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:10:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:32,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:32,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:32,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:10:32,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:32,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 01:10:32,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:32,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:10:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:10:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:10:32,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:10:32,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:10:32,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:32,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:33,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:33,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 01:10:33,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:33,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 01:10:33,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:33,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:33,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:10:33,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:10:33,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 01:10:33,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:10:33,336 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:10:33,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1043268501] [2020-10-14 01:10:33,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:10:33,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 01:10:33,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936529500] [2020-10-14 01:10:33,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 01:10:33,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:10:33,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 01:10:33,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 01:10:33,340 INFO L87 Difference]: Start difference. First operand 3410 states and 5196 transitions. Second operand 8 states. [2020-10-14 01:10:43,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:10:43,352 INFO L93 Difference]: Finished difference Result 8653 states and 13161 transitions. [2020-10-14 01:10:43,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 01:10:43,355 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 842 [2020-10-14 01:10:43,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:10:43,377 INFO L225 Difference]: With dead ends: 8653 [2020-10-14 01:10:43,377 INFO L226 Difference]: Without dead ends: 5249 [2020-10-14 01:10:43,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 01:10:43,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5249 states. [2020-10-14 01:10:43,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5249 to 5196. [2020-10-14 01:10:43,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5196 states. [2020-10-14 01:10:43,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5196 states to 5196 states and 7032 transitions. [2020-10-14 01:10:43,507 INFO L78 Accepts]: Start accepts. Automaton has 5196 states and 7032 transitions. Word has length 842 [2020-10-14 01:10:43,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:10:43,508 INFO L479 AbstractCegarLoop]: Abstraction has 5196 states and 7032 transitions. [2020-10-14 01:10:43,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 01:10:43,508 INFO L276 IsEmpty]: Start isEmpty. Operand 5196 states and 7032 transitions. [2020-10-14 01:10:43,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 844 [2020-10-14 01:10:43,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:10:43,528 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, 1, 1] [2020-10-14 01:10:43,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 01:10:43,529 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:10:43,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:10:43,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1281834308, now seen corresponding path program 1 times [2020-10-14 01:10:43,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:10:43,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1441130615] [2020-10-14 01:10:43,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:10:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:43,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:44,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:46,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:48,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:48,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 859 [2020-10-14 01:10:48,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:10:48,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5117 [2020-10-14 01:10:48,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:48,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:48,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:10:48,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:10:48,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 01:10:48,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:10:48,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:10:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:48,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:48,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:48,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:10:48,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:48,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 01:10:48,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:48,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:48,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:10:48,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:10:48,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:10:48,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:10:48,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:10:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:48,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:48,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:48,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 01:10:48,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:48,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 01:10:48,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:48,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:48,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:10:48,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:10:48,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 01:10:48,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:10:49,240 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:10:49,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1441130615] [2020-10-14 01:10:49,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:10:49,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 01:10:49,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387463423] [2020-10-14 01:10:49,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:10:49,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:10:49,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:10:49,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:10:49,243 INFO L87 Difference]: Start difference. First operand 5196 states and 7032 transitions. Second operand 7 states. [2020-10-14 01:10:59,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:10:59,741 INFO L93 Difference]: Finished difference Result 15880 states and 22095 transitions. [2020-10-14 01:10:59,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:10:59,742 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 843 [2020-10-14 01:10:59,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:10:59,787 INFO L225 Difference]: With dead ends: 15880 [2020-10-14 01:10:59,787 INFO L226 Difference]: Without dead ends: 10690 [2020-10-14 01:10:59,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:10:59,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10690 states. [2020-10-14 01:11:00,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10690 to 10560. [2020-10-14 01:11:00,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10560 states. [2020-10-14 01:11:00,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10560 states to 10560 states and 13595 transitions. [2020-10-14 01:11:00,061 INFO L78 Accepts]: Start accepts. Automaton has 10560 states and 13595 transitions. Word has length 843 [2020-10-14 01:11:00,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:11:00,061 INFO L479 AbstractCegarLoop]: Abstraction has 10560 states and 13595 transitions. [2020-10-14 01:11:00,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:11:00,061 INFO L276 IsEmpty]: Start isEmpty. Operand 10560 states and 13595 transitions. [2020-10-14 01:11:00,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 846 [2020-10-14 01:11:00,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:11:00,096 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:00,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 01:11:00,097 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:11:00,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:11:00,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1805759480, now seen corresponding path program 1 times [2020-10-14 01:11:00,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:11:00,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [163340608] [2020-10-14 01:11:00,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:11:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:00,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:01,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:04,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:05,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:05,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 861 [2020-10-14 01:11:05,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:11:05,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-14 01:11:05,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:05,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:05,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:11:05,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:11:05,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 01:11:05,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:11:05,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:11:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:05,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:05,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:05,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:11:05,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:05,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 01:11:05,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:05,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:05,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:11:05,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:05,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:11:05,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:11:05,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:11:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:05,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:05,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:05,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 01:11:05,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:05,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 01:11:05,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:05,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:05,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:11:05,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:11:05,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 01:11:05,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 01:11:06,038 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:11:06,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [163340608] [2020-10-14 01:11:06,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:11:06,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 01:11:06,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662328272] [2020-10-14 01:11:06,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:11:06,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:11:06,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:11:06,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:11:06,042 INFO L87 Difference]: Start difference. First operand 10560 states and 13595 transitions. Second operand 7 states. [2020-10-14 01:11:14,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:11:14,369 INFO L93 Difference]: Finished difference Result 26522 states and 34075 transitions. [2020-10-14 01:11:14,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:11:14,370 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 845 [2020-10-14 01:11:14,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:11:14,437 INFO L225 Difference]: With dead ends: 26522 [2020-10-14 01:11:14,437 INFO L226 Difference]: Without dead ends: 15968 [2020-10-14 01:11:14,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 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 01:11:14,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15968 states. [2020-10-14 01:11:14,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15968 to 15789. [2020-10-14 01:11:14,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15789 states. [2020-10-14 01:11:14,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15789 states to 15789 states and 19687 transitions. [2020-10-14 01:11:14,802 INFO L78 Accepts]: Start accepts. Automaton has 15789 states and 19687 transitions. Word has length 845 [2020-10-14 01:11:14,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:11:14,803 INFO L479 AbstractCegarLoop]: Abstraction has 15789 states and 19687 transitions. [2020-10-14 01:11:14,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:11:14,803 INFO L276 IsEmpty]: Start isEmpty. Operand 15789 states and 19687 transitions. [2020-10-14 01:11:14,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 865 [2020-10-14 01:11:14,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:11:14,855 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:14,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 01:11:14,855 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:11:14,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:11:14,856 INFO L82 PathProgramCache]: Analyzing trace with hash 542205831, now seen corresponding path program 1 times [2020-10-14 01:11:14,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:11:14,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281938124] [2020-10-14 01:11:14,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:11:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:15,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:15,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:16,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:20,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:20,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 882 [2020-10-14 01:11:20,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:11:20,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-14 01:11:20,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:20,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:20,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 01:11:20,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 01:11:20,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 852 [2020-10-14 01:11:20,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:11:20,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:11:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:20,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:20,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:20,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:11:20,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:20,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:11:20,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:20,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:20,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:11:20,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:20,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:11:20,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:20,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:11:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:20,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:20,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:20,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:11:20,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:20,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 01:11:20,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:20,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:20,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:11:20,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:20,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 01:11:20,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:20,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:11:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:20,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:20,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:20,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:20,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 01:11:20,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:11:20,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 01:11:20,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:20,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:20,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:11:20,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:20,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 01:11:20,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:21,153 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-14 01:11:21,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281938124] [2020-10-14 01:11:21,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:11:21,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 01:11:21,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722486040] [2020-10-14 01:11:21,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 01:11:21,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:11:21,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 01:11:21,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 01:11:21,156 INFO L87 Difference]: Start difference. First operand 15789 states and 19687 transitions. Second operand 5 states. [2020-10-14 01:11:29,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:11:29,260 INFO L93 Difference]: Finished difference Result 34211 states and 44077 transitions. [2020-10-14 01:11:29,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 01:11:29,261 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 864 [2020-10-14 01:11:29,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:11:29,333 INFO L225 Difference]: With dead ends: 34211 [2020-10-14 01:11:29,333 INFO L226 Difference]: Without dead ends: 18428 [2020-10-14 01:11:29,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 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 01:11:29,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18428 states. [2020-10-14 01:11:29,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18428 to 18385. [2020-10-14 01:11:29,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18385 states. [2020-10-14 01:11:29,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18385 states to 18385 states and 23122 transitions. [2020-10-14 01:11:29,758 INFO L78 Accepts]: Start accepts. Automaton has 18385 states and 23122 transitions. Word has length 864 [2020-10-14 01:11:29,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:11:29,761 INFO L479 AbstractCegarLoop]: Abstraction has 18385 states and 23122 transitions. [2020-10-14 01:11:29,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 01:11:29,761 INFO L276 IsEmpty]: Start isEmpty. Operand 18385 states and 23122 transitions. [2020-10-14 01:11:29,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 891 [2020-10-14 01:11:29,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:11:29,823 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:29,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 01:11:29,823 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:11:29,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:11:29,824 INFO L82 PathProgramCache]: Analyzing trace with hash -64498638, now seen corresponding path program 1 times [2020-10-14 01:11:29,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:11:29,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1547003367] [2020-10-14 01:11:29,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:11:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:29,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:29,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:30,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:31,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:33,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:34,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:34,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 910 [2020-10-14 01:11:34,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 01:11:34,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-14 01:11:34,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:34,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:34,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:11:34,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-14 01:11:34,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 01:11:34,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:35,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:11:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:35,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:35,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:35,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:11:35,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:35,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:11:35,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:35,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:35,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:11:35,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:35,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:11:35,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:35,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:11:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:35,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:35,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:35,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:11:35,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:35,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 01:11:35,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:35,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:35,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:11:35,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:35,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:11:35,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:35,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:11:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:35,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:35,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:35,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 01:11:35,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:35,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 01:11:35,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:35,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:35,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:11:35,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:35,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 01:11:35,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:11:35,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 01:11:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:35,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:35,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:35,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 01:11:35,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:35,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 01:11:35,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:35,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:35,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:11:35,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:11:35,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 01:11:35,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:35,549 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 01:11:35,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1547003367] [2020-10-14 01:11:35,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:11:35,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 01:11:35,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700547086] [2020-10-14 01:11:35,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 01:11:35,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:11:35,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 01:11:35,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 01:11:35,552 INFO L87 Difference]: Start difference. First operand 18385 states and 23122 transitions. Second operand 8 states. [2020-10-14 01:11:51,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:11:51,047 INFO L93 Difference]: Finished difference Result 44727 states and 58075 transitions. [2020-10-14 01:11:51,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 01:11:51,048 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 890 [2020-10-14 01:11:51,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:11:51,136 INFO L225 Difference]: With dead ends: 44727 [2020-10-14 01:11:51,136 INFO L226 Difference]: Without dead ends: 26348 [2020-10-14 01:11:51,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 01:11:51,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26348 states. [2020-10-14 01:11:51,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26348 to 26231. [2020-10-14 01:11:51,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26231 states. [2020-10-14 01:11:51,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26231 states to 26231 states and 32380 transitions. [2020-10-14 01:11:51,644 INFO L78 Accepts]: Start accepts. Automaton has 26231 states and 32380 transitions. Word has length 890 [2020-10-14 01:11:51,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:11:51,645 INFO L479 AbstractCegarLoop]: Abstraction has 26231 states and 32380 transitions. [2020-10-14 01:11:51,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 01:11:51,645 INFO L276 IsEmpty]: Start isEmpty. Operand 26231 states and 32380 transitions. [2020-10-14 01:11:51,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 927 [2020-10-14 01:11:51,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:11:51,699 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 01:11:51,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 01:11:51,700 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:11:51,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:11:51,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1715176874, now seen corresponding path program 1 times [2020-10-14 01:11:51,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:11:51,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620851454] [2020-10-14 01:11:51,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:11:51,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:51,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:52,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:52,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:55,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:56,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:56,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 946 [2020-10-14 01:11:56,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:11:56,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5077 [2020-10-14 01:11:56,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:56,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:56,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:11:56,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-14 01:11:56,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 01:11:56,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:57,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:11:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:57,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:57,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:57,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:11:57,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:57,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 01:11:57,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:57,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:57,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:11:57,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:57,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:11:57,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:57,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:11:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:57,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:57,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:57,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:11:57,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:57,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 01:11:57,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:57,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:57,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:11:57,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:57,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:11:57,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:57,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:11:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:57,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:57,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:57,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 01:11:57,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:57,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 01:11:57,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:57,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:57,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:11:57,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:57,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 01:11:57,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:57,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 01:11:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:57,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:57,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:57,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-14 01:11:57,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:57,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 01:11:57,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:57,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:57,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:11:57,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:11:57,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 01:11:57,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:57,620 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-14 01:11:57,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620851454] [2020-10-14 01:11:57,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:11:57,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:11:57,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035176961] [2020-10-14 01:11:57,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:11:57,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:11:57,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:11:57,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:11:57,624 INFO L87 Difference]: Start difference. First operand 26231 states and 32380 transitions. Second operand 7 states. [2020-10-14 01:12:12,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:12:12,592 INFO L93 Difference]: Finished difference Result 67275 states and 86343 transitions. [2020-10-14 01:12:12,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:12:12,593 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 926 [2020-10-14 01:12:12,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:12:12,733 INFO L225 Difference]: With dead ends: 67275 [2020-10-14 01:12:12,734 INFO L226 Difference]: Without dead ends: 41050 [2020-10-14 01:12:12,779 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 01:12:12,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41050 states. [2020-10-14 01:12:13,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41050 to 41024. [2020-10-14 01:12:13,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41024 states. [2020-10-14 01:12:13,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41024 states to 41024 states and 51362 transitions. [2020-10-14 01:12:13,553 INFO L78 Accepts]: Start accepts. Automaton has 41024 states and 51362 transitions. Word has length 926 [2020-10-14 01:12:13,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:12:13,554 INFO L479 AbstractCegarLoop]: Abstraction has 41024 states and 51362 transitions. [2020-10-14 01:12:13,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:12:13,554 INFO L276 IsEmpty]: Start isEmpty. Operand 41024 states and 51362 transitions. [2020-10-14 01:12:13,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2020-10-14 01:12:13,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:12:13,638 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 01:12:13,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 01:12:13,639 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:12:13,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:12:13,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1594640178, now seen corresponding path program 1 times [2020-10-14 01:12:13,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:12:13,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815870119] [2020-10-14 01:12:13,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:12:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:12:13,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:13,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:14,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:17,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:18,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:12:18,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1024 [2020-10-14 01:12:18,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:12:18,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-10-14 01:12:18,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:12:18,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:12:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:12:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-14 01:12:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 01:12:18,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:12:19,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:12:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:12:19,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:19,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:12:19,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:12:19,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:12:19,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:12:19,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:12:19,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:12:19,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:12:19,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:12:19,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:12:19,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:12:19,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:12:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:12:19,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:19,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:12:19,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:12:19,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:12:19,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 01:12:19,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:12:19,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:12:19,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:12:19,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:12:19,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:12:19,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:12:19,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:12:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:12:19,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:19,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:12:19,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 01:12:19,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:12:19,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 01:12:19,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:12:19,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:12:19,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:12:19,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:12:19,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 01:12:19,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:12:19,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 01:12:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:12:19,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:19,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:12:19,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 01:12:19,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:12:19,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-14 01:12:19,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:12:19,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:12:19,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:12:19,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:12:19,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 01:12:19,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:12:19,879 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 202 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-14 01:12:19,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [815870119] [2020-10-14 01:12:19,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:12:19,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:12:19,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351375045] [2020-10-14 01:12:19,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:12:19,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:12:19,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:12:19,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:12:19,883 INFO L87 Difference]: Start difference. First operand 41024 states and 51362 transitions. Second operand 7 states. [2020-10-14 01:12:33,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:12:33,148 INFO L93 Difference]: Finished difference Result 112433 states and 151319 transitions. [2020-10-14 01:12:33,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 01:12:33,149 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1004 [2020-10-14 01:12:33,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:12:33,407 INFO L225 Difference]: With dead ends: 112433 [2020-10-14 01:12:33,408 INFO L226 Difference]: Without dead ends: 71419 [2020-10-14 01:12:33,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 01:12:33,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71419 states. [2020-10-14 01:12:34,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71419 to 70695. [2020-10-14 01:12:34,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70695 states. [2020-10-14 01:12:34,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70695 states to 70695 states and 88943 transitions. [2020-10-14 01:12:34,843 INFO L78 Accepts]: Start accepts. Automaton has 70695 states and 88943 transitions. Word has length 1004 [2020-10-14 01:12:34,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:12:34,844 INFO L479 AbstractCegarLoop]: Abstraction has 70695 states and 88943 transitions. [2020-10-14 01:12:34,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:12:34,844 INFO L276 IsEmpty]: Start isEmpty. Operand 70695 states and 88943 transitions. [2020-10-14 01:12:34,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1011 [2020-10-14 01:12:34,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:12:34,996 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:34,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 01:12:34,996 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:12:34,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:12:34,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1284189781, now seen corresponding path program 1 times [2020-10-14 01:12:34,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:12:34,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179625087] [2020-10-14 01:12:34,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:12:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:12:35,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:35,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:35,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:36,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:39,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:40,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:12:40,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1032 [2020-10-14 01:12:40,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 01:12:40,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 01:12:40,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:12:40,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:12:40,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:12:40,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 01:12:40,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 01:12:40,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:12:40,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:12:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:12:40,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:40,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:12:40,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:12:40,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:12:40,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:12:40,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:12:40,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:12:40,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:12:40,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:12:40,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:12:40,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:12:40,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:12:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:12:40,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:40,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:12:40,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:12:40,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:12:40,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 01:12:40,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:12:40,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:12:40,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:12:40,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:12:40,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 01:12:40,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:12:40,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:12:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:12:40,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:40,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:12:40,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 01:12:40,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:12:40,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 01:12:40,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:12:40,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:12:40,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:12:40,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:12:40,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 01:12:40,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:12:40,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 01:12:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:12:40,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:40,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:12:40,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 01:12:40,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:12:40,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 01:12:40,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:12:40,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:12:40,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:12:40,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 01:12:40,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:12:40,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:12:40,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-14 01:12:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:12:40,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:40,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:12:40,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 01:12:40,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:12:40,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 01:12:40,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:12:40,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:12:40,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:12:40,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-14 01:12:40,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:12:40,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:12:41,017 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 194 proven. 85 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-14 01:12:41,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179625087] [2020-10-14 01:12:41,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:12:41,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:12:41,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172846582] [2020-10-14 01:12:41,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:12:41,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:12:41,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:12:41,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:12:41,019 INFO L87 Difference]: Start difference. First operand 70695 states and 88943 transitions. Second operand 7 states. [2020-10-14 01:12:52,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:12:52,344 INFO L93 Difference]: Finished difference Result 164268 states and 210279 transitions. [2020-10-14 01:12:52,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 01:12:52,345 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1010 [2020-10-14 01:12:52,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:12:52,633 INFO L225 Difference]: With dead ends: 164268 [2020-10-14 01:12:52,633 INFO L226 Difference]: Without dead ends: 93583 [2020-10-14 01:12:52,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 01:12:52,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93583 states. [2020-10-14 01:12:54,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93583 to 92721. [2020-10-14 01:12:54,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92721 states. [2020-10-14 01:12:54,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92721 states to 92721 states and 118059 transitions. [2020-10-14 01:12:54,674 INFO L78 Accepts]: Start accepts. Automaton has 92721 states and 118059 transitions. Word has length 1010 [2020-10-14 01:12:54,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:12:54,674 INFO L479 AbstractCegarLoop]: Abstraction has 92721 states and 118059 transitions. [2020-10-14 01:12:54,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:12:54,675 INFO L276 IsEmpty]: Start isEmpty. Operand 92721 states and 118059 transitions. [2020-10-14 01:12:54,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1110 [2020-10-14 01:12:54,836 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:12:54,837 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 01:12:54,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 01:12:54,837 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:12:54,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:12:54,838 INFO L82 PathProgramCache]: Analyzing trace with hash -355343670, now seen corresponding path program 1 times [2020-10-14 01:12:54,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:12:54,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [517219861] [2020-10-14 01:12:54,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:12:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:12:54,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:55,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:55,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:55,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:55,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:12:58,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:13:00,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:13:00,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1133 [2020-10-14 01:13:00,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 01:13:00,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5081 [2020-10-14 01:13:00,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:13:00,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:13:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:13:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 01:13:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-14 01:13:00,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:13:00,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:13:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:13:00,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:13:00,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:13:00,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:13:00,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:13:00,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 01:13:00,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:13:00,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:13:00,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:13:00,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:13:00,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:13:00,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:13:00,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:13:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:13:00,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:13:00,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:13:00,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:13:00,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:13:00,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 01:13:00,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:13:00,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:13:00,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:13:00,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:13:00,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 01:13:00,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:13:00,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:13:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:13:00,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:13:00,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:13:00,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-14 01:13:00,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:13:00,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-14 01:13:00,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:13:00,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:13:00,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:13:00,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:13:00,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-14 01:13:00,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:13:00,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-14 01:13:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:13:00,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:13:00,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:13:00,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 01:13:00,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:13:00,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 01:13:00,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:13:00,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:13:00,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:13:00,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 01:13:00,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:13:00,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:13:00,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 01:13:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:13:00,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:13:00,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:13:00,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 01:13:00,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:13:00,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 01:13:00,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:13:00,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:13:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:13:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-14 01:13:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:13:00,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:13:00,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2020-10-14 01:13:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:13:00,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:13:00,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:13:00,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 01:13:00,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:13:00,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 01:13:00,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:13:00,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:13:00,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:13:00,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 01:13:00,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:13:00,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:13:01,762 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 294 proven. 110 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2020-10-14 01:13:01,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [517219861] [2020-10-14 01:13:01,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:13:01,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:13:01,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990347658] [2020-10-14 01:13:01,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:13:01,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:13:01,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:13:01,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:13:01,765 INFO L87 Difference]: Start difference. First operand 92721 states and 118059 transitions. Second operand 7 states. [2020-10-14 01:13:14,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:13:14,136 INFO L93 Difference]: Finished difference Result 216935 states and 275280 transitions. [2020-10-14 01:13:14,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 01:13:14,137 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1109 [2020-10-14 01:13:14,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:13:14,475 INFO L225 Difference]: With dead ends: 216935 [2020-10-14 01:13:14,475 INFO L226 Difference]: Without dead ends: 124224 [2020-10-14 01:13:14,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 01:13:14,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124224 states. [2020-10-14 01:13:16,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124224 to 108314. [2020-10-14 01:13:16,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108314 states. [2020-10-14 01:13:16,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108314 states to 108314 states and 130371 transitions. [2020-10-14 01:13:16,802 INFO L78 Accepts]: Start accepts. Automaton has 108314 states and 130371 transitions. Word has length 1109 [2020-10-14 01:13:16,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:13:16,802 INFO L479 AbstractCegarLoop]: Abstraction has 108314 states and 130371 transitions. [2020-10-14 01:13:16,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:13:16,803 INFO L276 IsEmpty]: Start isEmpty. Operand 108314 states and 130371 transitions. [2020-10-14 01:13:16,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1512 [2020-10-14 01:13:16,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:13:16,904 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 01:13:16,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 01:13:16,904 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:13:16,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:13:16,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1092213067, now seen corresponding path program 1 times [2020-10-14 01:13:16,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:13:16,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [711238925] [2020-10-14 01:13:16,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:13:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:13:17,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:13:17,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:13:17,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:13:22,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:13:22,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1539 [2020-10-14 01:13:22,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:13:22,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5096 [2020-10-14 01:13:22,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:13:22,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:13:22,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:13:22,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 355 [2020-10-14 01:13:22,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-14 01:13:22,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:13:22,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:13:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:13:22,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:13:22,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:13:22,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:13:22,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:13:22,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 01:13:22,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:13:22,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:13:22,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:13:22,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:13:22,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:13:22,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:13:22,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:13:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:13:22,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:13:22,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:13:22,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-14 01:13:22,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:13:22,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 01:13:22,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:13:22,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:13:22,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:13:22,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:13:22,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:13:22,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:13:22,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 01:13:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:13:22,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:13:22,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:13:22,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 01:13:22,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:13:22,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 01:13:22,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:13:22,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:13:22,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:13:22,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:13:22,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:13:22,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 01:13:22,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-14 01:13:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:13:22,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:13:22,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:13:22,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 01:13:22,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:13:22,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 01:13:22,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:13:22,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:13:22,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:13:22,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:13:22,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:13:22,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 01:13:23,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-14 01:13:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:13:23,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:13:23,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:13:23,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 01:13:23,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:13:23,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 01:13:23,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:13:23,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:13:23,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:13:23,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:13:23,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 01:13:23,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:13:23,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2020-10-14 01:13:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:13:23,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:13:23,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:13:23,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-14 01:13:23,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:13:23,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 403 [2020-10-14 01:13:23,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:13:23,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:13:23,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:13:23,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:13:23,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-14 01:13:23,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:13:23,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-10-14 01:13:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:13:23,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:13:23,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:13:23,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 01:13:23,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:13:23,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 01:13:23,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:13:23,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:13:23,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:13:23,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-14 01:13:23,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:13:23,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:13:23,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2020-10-14 01:13:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:13:23,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:13:23,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:13:23,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 01:13:23,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:13:23,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 01:13:23,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:13:23,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:13:23,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:13:23,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 01:13:23,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:13:23,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0