/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:19:08,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:19:08,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:19:08,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:19:08,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:19:08,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:19:08,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:19:08,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:19:08,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:19:08,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:19:08,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:19:08,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:19:08,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:19:08,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:19:08,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:19:08,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:19:08,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:19:08,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:19:08,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:19:08,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:19:08,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:19:08,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:19:08,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:19:08,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:19:08,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:19:08,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:19:08,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:19:08,907 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:19:08,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:19:08,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:19:08,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:19:08,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:19:08,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:19:08,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:19:08,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:19:08,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:19:08,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:19:08,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:19:08,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:19:08,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:19:08,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:19:08,923 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 04:19:08,945 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:19:08,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:19:08,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:19:08,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:19:08,947 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:19:08,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:19:08,948 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:19:08,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:19:08,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:19:08,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:19:08,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:19:08,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:19:08,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:19:08,949 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:19:08,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:19:08,949 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:19:08,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:19:08,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:19:08,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:19:08,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:19:08,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:19:08,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:19:08,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:19:08,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:19:08,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:19:08,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:19:08,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:19:08,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:19:08,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:19:08,952 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 04:19:09,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:19:09,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:19:09,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:19:09,262 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:19:09,262 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:19:09,263 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label34.c [2020-10-14 04:19:09,323 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9247d206/52ed29c7a9014cd09440a330920c4b9b/FLAG9c843a2fc [2020-10-14 04:19:10,101 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:19:10,102 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label34.c [2020-10-14 04:19:10,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9247d206/52ed29c7a9014cd09440a330920c4b9b/FLAG9c843a2fc [2020-10-14 04:19:10,166 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9247d206/52ed29c7a9014cd09440a330920c4b9b [2020-10-14 04:19:10,176 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:19:10,178 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:19:10,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:19:10,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:19:10,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:19:10,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:19:10" (1/1) ... [2020-10-14 04:19:10,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8099dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:10, skipping insertion in model container [2020-10-14 04:19:10,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:19:10" (1/1) ... [2020-10-14 04:19:10,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:19:10,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:19:11,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:19:11,521 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:19:12,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:19:12,121 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:19:12,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:12 WrapperNode [2020-10-14 04:19:12,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:19:12,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:19:12,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:19:12,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:19:12,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:12" (1/1) ... [2020-10-14 04:19:12,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:12" (1/1) ... [2020-10-14 04:19:12,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:12" (1/1) ... [2020-10-14 04:19:12,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:12" (1/1) ... [2020-10-14 04:19:12,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:12" (1/1) ... [2020-10-14 04:19:12,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:12" (1/1) ... [2020-10-14 04:19:12,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:12" (1/1) ... [2020-10-14 04:19:12,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:19:12,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:19:12,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:19:12,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:19:12,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:19:12,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:19:12,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:19:12,491 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 04:19:12,492 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 04:19:12,492 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 04:19:12,492 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:19:12,492 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 04:19:12,493 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 04:19:12,494 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 04:19:12,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:19:12,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 04:19:12,494 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 04:19:12,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:19:12,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:19:12,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:19:18,624 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:19:18,625 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 04:19:18,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:19:18 BoogieIcfgContainer [2020-10-14 04:19:18,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:19:18,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:19:18,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:19:18,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:19:18,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:19:10" (1/3) ... [2020-10-14 04:19:18,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df48e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:19:18, skipping insertion in model container [2020-10-14 04:19:18,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:12" (2/3) ... [2020-10-14 04:19:18,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df48e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:19:18, skipping insertion in model container [2020-10-14 04:19:18,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:19:18" (3/3) ... [2020-10-14 04:19:18,651 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label34.c [2020-10-14 04:19:18,662 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:19:18,671 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:19:18,689 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:19:18,717 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:19:18,718 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:19:18,718 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:19:18,718 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:19:18,718 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:19:18,718 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:19:18,718 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:19:18,719 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:19:18,755 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 04:19:18,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-14 04:19:18,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:19:18,763 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:19:18,763 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:19:18,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:19:18,771 INFO L82 PathProgramCache]: Analyzing trace with hash -415244174, now seen corresponding path program 1 times [2020-10-14 04:19:18,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:19:18,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779600078] [2020-10-14 04:19:18,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:19:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:19:18,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:19:19,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:19:19,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 04:19:19,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:19:19,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-14 04:19:19,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:19:19,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:19:19,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:19:19,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:19:19,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:19:19,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 04:19:19,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:19:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:19:19,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:19:19,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:19:19,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:19:19,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:19:19,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 04:19:19,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:19:19,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:19:19,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:19:19,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:19:19,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:19:19,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:19:19,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:19:19,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779600078] [2020-10-14 04:19:19,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:19:19,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 04:19:19,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485699615] [2020-10-14 04:19:19,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:19:19,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:19:19,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:19:19,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:19:19,443 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-14 04:19:27,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:19:27,223 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-14 04:19:27,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:19:27,226 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-14 04:19:27,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:19:27,251 INFO L225 Difference]: With dead ends: 2270 [2020-10-14 04:19:27,251 INFO L226 Difference]: Without dead ends: 1432 [2020-10-14 04:19:27,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:19:27,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-14 04:19:27,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-14 04:19:27,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-14 04:19:27,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2331 transitions. [2020-10-14 04:19:27,417 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2331 transitions. Word has length 13 [2020-10-14 04:19:27,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:19:27,418 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2331 transitions. [2020-10-14 04:19:27,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:19:27,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2331 transitions. [2020-10-14 04:19:27,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 04:19:27,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:19:27,436 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:19:27,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:19:27,438 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:19:27,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:19:27,439 INFO L82 PathProgramCache]: Analyzing trace with hash -811627082, now seen corresponding path program 1 times [2020-10-14 04:19:27,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:19:27,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54164034] [2020-10-14 04:19:27,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:19:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:19:27,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:19:27,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:19:28,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:19:28,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 04:19:28,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:19:28,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 773 [2020-10-14 04:19:28,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:19:28,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:19:28,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:19:28,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 04:19:28,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 04:19:28,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:19:28,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:19:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:19:28,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:19:28,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:19:28,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:19:28,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:19:28,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:19:28,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:19:28,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:19:28,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:19:28,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:19:28,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:19:28,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:19:28,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:19:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:19:28,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:19:28,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:19:28,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:19:28,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:19:28,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 04:19:28,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:19:28,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:19:28,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:19:28,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:19:28,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 04:19:28,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:19:28,498 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:19:28,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [54164034] [2020-10-14 04:19:28,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:19:28,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 04:19:28,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644951211] [2020-10-14 04:19:28,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:19:28,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:19:28,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:19:28,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:19:28,502 INFO L87 Difference]: Start difference. First operand 1425 states and 2331 transitions. Second operand 6 states. [2020-10-14 04:19:45,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:19:45,201 INFO L93 Difference]: Finished difference Result 4271 states and 7385 transitions. [2020-10-14 04:19:45,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:19:45,203 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2020-10-14 04:19:45,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:19:45,221 INFO L225 Difference]: With dead ends: 4271 [2020-10-14 04:19:45,222 INFO L226 Difference]: Without dead ends: 2852 [2020-10-14 04:19:45,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:19:45,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2020-10-14 04:19:45,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2848. [2020-10-14 04:19:45,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2848 states. [2020-10-14 04:19:45,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 4431 transitions. [2020-10-14 04:19:45,296 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 4431 transitions. Word has length 83 [2020-10-14 04:19:45,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:19:45,297 INFO L479 AbstractCegarLoop]: Abstraction has 2848 states and 4431 transitions. [2020-10-14 04:19:45,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:19:45,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 4431 transitions. [2020-10-14 04:19:45,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 04:19:45,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:19:45,300 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:19:45,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:19:45,301 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:19:45,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:19:45,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1856276731, now seen corresponding path program 1 times [2020-10-14 04:19:45,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:19:45,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100460995] [2020-10-14 04:19:45,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:19:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:19:45,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:19:45,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:19:45,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:19:45,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 04:19:45,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:19:45,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-10-14 04:19:45,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:19:45,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:19:45,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:19:45,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 04:19:45,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 04:19:45,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:19:45,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:19:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:19:45,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:19:45,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:19:45,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:19:45,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:19:45,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:19:45,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:19:45,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:19:45,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:19:45,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:19:45,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:19:45,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:19:45,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:19:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:19:45,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:19:45,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:19:45,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 04:19:45,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:19:45,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 04:19:45,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:19:45,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:19:45,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:19:45,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:19:45,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 04:19:45,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:19:45,882 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:19:45,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100460995] [2020-10-14 04:19:45,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:19:45,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:19:45,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075986725] [2020-10-14 04:19:45,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:19:45,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:19:45,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:19:45,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:19:45,885 INFO L87 Difference]: Start difference. First operand 2848 states and 4431 transitions. Second operand 5 states. [2020-10-14 04:19:55,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:19:55,480 INFO L93 Difference]: Finished difference Result 8535 states and 13427 transitions. [2020-10-14 04:19:55,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:19:55,486 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 84 [2020-10-14 04:19:55,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:19:55,516 INFO L225 Difference]: With dead ends: 8535 [2020-10-14 04:19:55,516 INFO L226 Difference]: Without dead ends: 5693 [2020-10-14 04:19:55,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 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 04:19:55,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5693 states. [2020-10-14 04:19:55,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5693 to 5685. [2020-10-14 04:19:55,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5685 states. [2020-10-14 04:19:55,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5685 states to 5685 states and 8613 transitions. [2020-10-14 04:19:55,665 INFO L78 Accepts]: Start accepts. Automaton has 5685 states and 8613 transitions. Word has length 84 [2020-10-14 04:19:55,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:19:55,666 INFO L479 AbstractCegarLoop]: Abstraction has 5685 states and 8613 transitions. [2020-10-14 04:19:55,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:19:55,666 INFO L276 IsEmpty]: Start isEmpty. Operand 5685 states and 8613 transitions. [2020-10-14 04:19:55,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-14 04:19:55,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:19:55,673 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:19:55,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:19:55,674 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:19:55,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:19:55,674 INFO L82 PathProgramCache]: Analyzing trace with hash 112492374, now seen corresponding path program 1 times [2020-10-14 04:19:55,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:19:55,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1222613124] [2020-10-14 04:19:55,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:19:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:19:55,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:19:56,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:19:56,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:19:56,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-14 04:19:56,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:19:56,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 983 [2020-10-14 04:19:56,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:19:56,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:19:56,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:19:56,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-14 04:19:56,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 04:19:56,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-10-14 04:19:56,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:19:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:19:56,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:19:56,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:19:56,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:19:56,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:19:56,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:19:56,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:19:56,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:19:56,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:19:56,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:19:56,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:19:56,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:19:56,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:19:56,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:19:56,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:19:57,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:19:57,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-14 04:19:57,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:19:57,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 04:19:57,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:19:57,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:19:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:19:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:19:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 04:19:57,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:19:57,138 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:19:57,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1222613124] [2020-10-14 04:19:57,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:19:57,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:19:57,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081495556] [2020-10-14 04:19:57,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:19:57,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:19:57,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:19:57,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:19:57,141 INFO L87 Difference]: Start difference. First operand 5685 states and 8613 transitions. Second operand 5 states. [2020-10-14 04:20:08,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:20:08,000 INFO L93 Difference]: Finished difference Result 16339 states and 24974 transitions. [2020-10-14 04:20:08,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:20:08,001 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 163 [2020-10-14 04:20:08,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:20:08,068 INFO L225 Difference]: With dead ends: 16339 [2020-10-14 04:20:08,068 INFO L226 Difference]: Without dead ends: 10660 [2020-10-14 04:20:08,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:20:08,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10660 states. [2020-10-14 04:20:08,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10660 to 9950. [2020-10-14 04:20:08,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9950 states. [2020-10-14 04:20:08,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9950 states to 9950 states and 14091 transitions. [2020-10-14 04:20:08,422 INFO L78 Accepts]: Start accepts. Automaton has 9950 states and 14091 transitions. Word has length 163 [2020-10-14 04:20:08,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:20:08,424 INFO L479 AbstractCegarLoop]: Abstraction has 9950 states and 14091 transitions. [2020-10-14 04:20:08,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:20:08,424 INFO L276 IsEmpty]: Start isEmpty. Operand 9950 states and 14091 transitions. [2020-10-14 04:20:08,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-14 04:20:08,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:20:08,431 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:20:08,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 04:20:08,432 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:20:08,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:20:08,432 INFO L82 PathProgramCache]: Analyzing trace with hash 231461935, now seen corresponding path program 1 times [2020-10-14 04:20:08,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:20:08,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643361168] [2020-10-14 04:20:08,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:20:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:20:08,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:08,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:08,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:11,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:20:11,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-14 04:20:11,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:20:11,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2580 [2020-10-14 04:20:11,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:20:11,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:20:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:20:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 04:20:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 04:20:11,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:20:11,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:20:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:20:11,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:11,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:20:11,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:20:11,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:20:11,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:20:11,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:20:11,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:20:11,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:20:11,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:20:11,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:20:11,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:20:11,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:20:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:20:11,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:11,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:20:11,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 04:20:11,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:20:11,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 04:20:11,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:20:11,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:20:11,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:20:11,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:20:11,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 04:20:11,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 04:20:11,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 04:20:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:20:11,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:11,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:20:11,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 04:20:11,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:20:11,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-14 04:20:11,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:20:11,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:20:11,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:20:11,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:20:11,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 04:20:11,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:20:11,591 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 80 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:20:11,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643361168] [2020-10-14 04:20:11,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:20:11,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:20:11,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630195337] [2020-10-14 04:20:11,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:20:11,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:20:11,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:20:11,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:20:11,598 INFO L87 Difference]: Start difference. First operand 9950 states and 14091 transitions. Second operand 7 states. [2020-10-14 04:20:23,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:20:23,107 INFO L93 Difference]: Finished difference Result 25748 states and 38201 transitions. [2020-10-14 04:20:23,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:20:23,110 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2020-10-14 04:20:23,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:20:23,188 INFO L225 Difference]: With dead ends: 25748 [2020-10-14 04:20:23,189 INFO L226 Difference]: Without dead ends: 15804 [2020-10-14 04:20:23,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:20:23,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15804 states. [2020-10-14 04:20:23,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15804 to 15054. [2020-10-14 04:20:23,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15054 states. [2020-10-14 04:20:23,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15054 states to 15054 states and 21018 transitions. [2020-10-14 04:20:23,730 INFO L78 Accepts]: Start accepts. Automaton has 15054 states and 21018 transitions. Word has length 178 [2020-10-14 04:20:23,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:20:23,731 INFO L479 AbstractCegarLoop]: Abstraction has 15054 states and 21018 transitions. [2020-10-14 04:20:23,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:20:23,731 INFO L276 IsEmpty]: Start isEmpty. Operand 15054 states and 21018 transitions. [2020-10-14 04:20:23,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-14 04:20:23,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:20:23,738 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:20:23,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 04:20:23,739 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:20:23,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:20:23,739 INFO L82 PathProgramCache]: Analyzing trace with hash 2119754830, now seen corresponding path program 1 times [2020-10-14 04:20:23,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:20:23,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651194271] [2020-10-14 04:20:23,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:20:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:20:23,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:23,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:24,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:25,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:20:25,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-14 04:20:25,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:20:25,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1858 [2020-10-14 04:20:25,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:20:25,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:20:25,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:20:25,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-14 04:20:25,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 04:20:25,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:20:25,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:20:25,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:20:25,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:25,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:20:25,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:20:25,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:20:25,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:20:25,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:20:25,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:20:25,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:20:25,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:20:25,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:20:25,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:20:25,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:20:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:20:25,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:25,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:20:25,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 04:20:25,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:20:25,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 04:20:25,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:20:25,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:20:25,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:20:25,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:20:25,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 04:20:25,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:20:25,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 04:20:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:20:25,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:25,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:20:25,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 04:20:25,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:20:25,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 04:20:25,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:20:25,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:20:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:20:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:20:25,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 04:20:25,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:20:26,077 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 81 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:20:26,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651194271] [2020-10-14 04:20:26,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:20:26,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:20:26,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710538671] [2020-10-14 04:20:26,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:20:26,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:20:26,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:20:26,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:20:26,082 INFO L87 Difference]: Start difference. First operand 15054 states and 21018 transitions. Second operand 7 states. [2020-10-14 04:20:39,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:20:39,612 INFO L93 Difference]: Finished difference Result 30368 states and 42893 transitions. [2020-10-14 04:20:39,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:20:39,613 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 179 [2020-10-14 04:20:39,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:20:39,684 INFO L225 Difference]: With dead ends: 30368 [2020-10-14 04:20:39,684 INFO L226 Difference]: Without dead ends: 15320 [2020-10-14 04:20:39,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:20:39,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15320 states. [2020-10-14 04:20:40,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15320 to 13859. [2020-10-14 04:20:40,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13859 states. [2020-10-14 04:20:40,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13859 states to 13859 states and 17992 transitions. [2020-10-14 04:20:40,045 INFO L78 Accepts]: Start accepts. Automaton has 13859 states and 17992 transitions. Word has length 179 [2020-10-14 04:20:40,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:20:40,046 INFO L479 AbstractCegarLoop]: Abstraction has 13859 states and 17992 transitions. [2020-10-14 04:20:40,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:20:40,048 INFO L276 IsEmpty]: Start isEmpty. Operand 13859 states and 17992 transitions. [2020-10-14 04:20:40,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-14 04:20:40,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:20:40,055 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:20:40,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 04:20:40,056 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:20:40,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:20:40,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1856476818, now seen corresponding path program 1 times [2020-10-14 04:20:40,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:20:40,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937255566] [2020-10-14 04:20:40,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:20:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:20:40,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:40,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:40,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:41,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:42,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:20:42,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-14 04:20:42,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:20:42,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2804 [2020-10-14 04:20:42,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:20:42,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:20:42,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:20:42,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 04:20:42,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 04:20:42,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:20:42,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:20:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:20:42,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:42,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:20:42,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:20:42,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:20:42,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:20:42,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:20:42,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:20:42,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:20:42,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:20:42,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:20:42,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:20:42,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:20:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:20:42,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:43,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:20:43,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 04:20:43,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:20:43,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 04:20:43,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:20:43,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:20:43,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:20:43,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:20:43,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 04:20:43,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:20:43,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 04:20:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:20:43,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:43,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:20:43,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 04:20:43,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:20:43,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 04:20:43,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:20:43,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:20:43,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:20:43,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:20:43,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 04:20:43,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:20:43,286 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:20:43,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [937255566] [2020-10-14 04:20:43,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:20:43,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:20:43,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891280629] [2020-10-14 04:20:43,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:20:43,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:20:43,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:20:43,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:20:43,289 INFO L87 Difference]: Start difference. First operand 13859 states and 17992 transitions. Second operand 7 states. [2020-10-14 04:20:54,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:20:54,022 INFO L93 Difference]: Finished difference Result 30774 states and 39710 transitions. [2020-10-14 04:20:54,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:20:54,023 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-10-14 04:20:54,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:20:54,064 INFO L225 Difference]: With dead ends: 30774 [2020-10-14 04:20:54,064 INFO L226 Difference]: Without dead ends: 13270 [2020-10-14 04:20:54,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:20:54,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13270 states. [2020-10-14 04:20:54,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13270 to 11804. [2020-10-14 04:20:54,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11804 states. [2020-10-14 04:20:54,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11804 states to 11804 states and 13131 transitions. [2020-10-14 04:20:54,300 INFO L78 Accepts]: Start accepts. Automaton has 11804 states and 13131 transitions. Word has length 195 [2020-10-14 04:20:54,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:20:54,301 INFO L479 AbstractCegarLoop]: Abstraction has 11804 states and 13131 transitions. [2020-10-14 04:20:54,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:20:54,301 INFO L276 IsEmpty]: Start isEmpty. Operand 11804 states and 13131 transitions. [2020-10-14 04:20:54,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2020-10-14 04:20:54,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:20:54,312 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:20:54,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 04:20:54,313 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:20:54,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:20:54,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1095613261, now seen corresponding path program 1 times [2020-10-14 04:20:54,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:20:54,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672195951] [2020-10-14 04:20:54,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:20:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:20:54,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:54,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:55,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:55,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:59,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:20:59,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 370 [2020-10-14 04:20:59,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:20:59,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-14 04:20:59,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:20:59,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:20:59,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:20:59,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:20:59,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 04:20:59,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:20:59,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:20:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:20:59,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:59,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:20:59,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:20:59,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:20:59,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:20:59,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:20:59,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:20:59,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:20:59,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:20:59,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:20:59,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:20:59,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:20:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:20:59,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:59,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:20:59,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:20:59,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:20:59,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 04:20:59,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:20:59,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:20:59,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:20:59,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:20:59,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:20:59,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:20:59,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:20:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:20:59,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:20:59,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:20:59,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 04:20:59,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:20:59,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-14 04:20:59,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:20:59,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:20:59,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:20:59,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:20:59,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 04:20:59,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:21:00,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 04:21:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:21:00,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:00,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:21:00,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 04:21:00,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:21:00,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 04:21:00,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:21:00,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:21:00,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:21:00,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-14 04:21:00,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:21:00,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:21:00,636 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 141 proven. 93 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-14 04:21:00,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672195951] [2020-10-14 04:21:00,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:21:00,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:21:00,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533175937] [2020-10-14 04:21:00,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:21:00,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:21:00,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:21:00,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:21:00,639 INFO L87 Difference]: Start difference. First operand 11804 states and 13131 transitions. Second operand 7 states. [2020-10-14 04:21:09,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:21:09,429 INFO L93 Difference]: Finished difference Result 32661 states and 38934 transitions. [2020-10-14 04:21:09,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:21:09,431 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 356 [2020-10-14 04:21:09,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:21:09,508 INFO L225 Difference]: With dead ends: 32661 [2020-10-14 04:21:09,508 INFO L226 Difference]: Without dead ends: 20863 [2020-10-14 04:21:09,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:21:09,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20863 states. [2020-10-14 04:21:10,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20863 to 20592. [2020-10-14 04:21:10,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20592 states. [2020-10-14 04:21:10,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20592 states to 20592 states and 22644 transitions. [2020-10-14 04:21:10,043 INFO L78 Accepts]: Start accepts. Automaton has 20592 states and 22644 transitions. Word has length 356 [2020-10-14 04:21:10,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:21:10,044 INFO L479 AbstractCegarLoop]: Abstraction has 20592 states and 22644 transitions. [2020-10-14 04:21:10,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:21:10,044 INFO L276 IsEmpty]: Start isEmpty. Operand 20592 states and 22644 transitions. [2020-10-14 04:21:10,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2020-10-14 04:21:10,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:21:10,059 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:21:10,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 04:21:10,060 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:21:10,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:21:10,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1784471442, now seen corresponding path program 1 times [2020-10-14 04:21:10,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:21:10,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502740010] [2020-10-14 04:21:10,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:21:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:21:10,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:10,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:11,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:11,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:15,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:21:15,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 453 [2020-10-14 04:21:15,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:21:15,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 04:21:15,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:21:15,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:21:15,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:21:15,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:21:15,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 213 [2020-10-14 04:21:15,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:21:15,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:21:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:21:15,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:15,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:21:15,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:21:15,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:21:15,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:21:15,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:21:15,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:21:15,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:21:15,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:21:15,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:21:15,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:21:15,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:21:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:21:15,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:15,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:21:15,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:21:15,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:21:15,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 04:21:15,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:21:15,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:21:15,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:21:15,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:21:15,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:21:15,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:21:15,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:21:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:21:15,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:15,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:21:15,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-14 04:21:15,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:21:15,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-10-14 04:21:15,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:21:15,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:21:15,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:21:15,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:21:15,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 211 [2020-10-14 04:21:15,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:21:16,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2020-10-14 04:21:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:21:16,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:16,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:21:16,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 04:21:16,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:21:16,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 04:21:16,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:21:16,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:21:16,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:21:16,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-14 04:21:16,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:21:16,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:21:16,940 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 141 proven. 93 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-14 04:21:16,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502740010] [2020-10-14 04:21:16,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:21:16,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:21:16,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977728688] [2020-10-14 04:21:16,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:21:16,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:21:16,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:21:16,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:21:16,948 INFO L87 Difference]: Start difference. First operand 20592 states and 22644 transitions. Second operand 7 states. [2020-10-14 04:21:28,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:21:28,059 INFO L93 Difference]: Finished difference Result 47766 states and 53436 transitions. [2020-10-14 04:21:28,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:21:28,061 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 439 [2020-10-14 04:21:28,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:21:28,153 INFO L225 Difference]: With dead ends: 47766 [2020-10-14 04:21:28,154 INFO L226 Difference]: Without dead ends: 27170 [2020-10-14 04:21:28,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:21:28,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27170 states. [2020-10-14 04:21:28,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27170 to 27130. [2020-10-14 04:21:28,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27130 states. [2020-10-14 04:21:28,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27130 states to 27130 states and 29887 transitions. [2020-10-14 04:21:28,553 INFO L78 Accepts]: Start accepts. Automaton has 27130 states and 29887 transitions. Word has length 439 [2020-10-14 04:21:28,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:21:28,554 INFO L479 AbstractCegarLoop]: Abstraction has 27130 states and 29887 transitions. [2020-10-14 04:21:28,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:21:28,555 INFO L276 IsEmpty]: Start isEmpty. Operand 27130 states and 29887 transitions. [2020-10-14 04:21:28,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2020-10-14 04:21:28,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:21:28,570 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:21:28,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 04:21:28,570 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:21:28,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:21:28,571 INFO L82 PathProgramCache]: Analyzing trace with hash -556907219, now seen corresponding path program 1 times [2020-10-14 04:21:28,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:21:28,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815900550] [2020-10-14 04:21:28,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:21:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:21:28,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:28,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:29,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:33,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:21:33,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 584 [2020-10-14 04:21:33,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:21:33,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-14 04:21:33,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:21:33,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:21:33,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:21:33,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:21:33,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 341 [2020-10-14 04:21:33,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:21:33,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:21:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:21:33,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:33,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:21:33,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:21:33,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:21:33,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:21:33,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:21:33,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:21:33,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:21:33,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:21:33,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:21:33,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:21:33,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:21:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:21:33,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:34,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:21:34,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:21:34,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:21:34,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 04:21:34,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:21:34,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:21:34,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:21:34,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:21:34,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:21:34,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:21:34,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:21:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:21:34,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:34,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:36,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:21:36,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 342 [2020-10-14 04:21:36,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:21:36,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2455 [2020-10-14 04:21:36,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:21:36,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:21:36,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:21:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:21:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 342 [2020-10-14 04:21:36,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:21:36,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:21:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:21:36,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:36,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:21:36,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 04:21:36,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:21:36,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 04:21:36,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:21:36,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:21:36,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:21:36,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:21:36,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 04:21:36,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:21:36,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2020-10-14 04:21:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:21:36,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:36,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:21:36,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 04:21:36,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:21:36,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 04:21:36,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:21:36,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:21:36,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:21:36,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-14 04:21:36,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:21:36,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:21:37,203 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 141 proven. 93 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-14 04:21:37,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815900550] [2020-10-14 04:21:37,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:21:37,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:21:37,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249674557] [2020-10-14 04:21:37,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:21:37,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:21:37,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:21:37,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:21:37,206 INFO L87 Difference]: Start difference. First operand 27130 states and 29887 transitions. Second operand 7 states. [2020-10-14 04:21:46,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:21:46,778 INFO L93 Difference]: Finished difference Result 53667 states and 59352 transitions. [2020-10-14 04:21:46,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:21:46,780 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 568 [2020-10-14 04:21:46,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:21:46,864 INFO L225 Difference]: With dead ends: 53667 [2020-10-14 04:21:46,864 INFO L226 Difference]: Without dead ends: 27245 [2020-10-14 04:21:46,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:21:46,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27245 states. [2020-10-14 04:21:47,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27245 to 27150. [2020-10-14 04:21:47,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27150 states. [2020-10-14 04:21:47,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27150 states to 27150 states and 29916 transitions. [2020-10-14 04:21:47,342 INFO L78 Accepts]: Start accepts. Automaton has 27150 states and 29916 transitions. Word has length 568 [2020-10-14 04:21:47,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:21:47,344 INFO L479 AbstractCegarLoop]: Abstraction has 27150 states and 29916 transitions. [2020-10-14 04:21:47,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:21:47,344 INFO L276 IsEmpty]: Start isEmpty. Operand 27150 states and 29916 transitions. [2020-10-14 04:21:47,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2020-10-14 04:21:47,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:21:47,365 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:21:47,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 04:21:47,365 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:21:47,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:21:47,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1702863553, now seen corresponding path program 1 times [2020-10-14 04:21:47,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:21:47,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [676532236] [2020-10-14 04:21:47,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:21:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:21:47,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:47,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:47,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:52,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:21:52,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 677 [2020-10-14 04:21:52,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:21:52,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 04:21:52,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:21:52,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:21:52,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:21:52,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 565 [2020-10-14 04:21:52,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 04:21:52,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:21:52,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:21:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:21:52,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:52,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:21:52,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:21:52,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:21:52,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:21:52,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:21:52,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:21:52,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:21:52,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:21:52,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:21:52,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:21:52,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:21:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:21:52,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:52,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:21:52,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:21:52,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:21:52,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 04:21:52,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:21:52,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:21:52,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:21:52,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:21:52,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:21:52,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:21:52,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:21:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:21:53,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:53,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:21:53,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 435 [2020-10-14 04:21:53,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:21:53,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 511 [2020-10-14 04:21:53,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:21:53,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:21:53,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:21:53,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:21:53,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 426 [2020-10-14 04:21:53,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:21:53,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:21:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:21:53,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:53,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:21:53,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-14 04:21:53,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:21:53,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 04:21:53,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:21:53,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:21:53,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:21:53,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:21:53,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 04:21:53,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:21:53,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 562 [2020-10-14 04:21:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:21:53,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:21:53,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:21:53,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 04:21:53,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:21:53,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 04:21:53,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:21:53,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:21:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:21:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:21:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 04:21:53,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:21:54,114 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 205 proven. 2 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2020-10-14 04:21:54,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [676532236] [2020-10-14 04:21:54,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:21:54,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:21:54,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842039543] [2020-10-14 04:21:54,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:21:54,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:21:54,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:21:54,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:21:54,117 INFO L87 Difference]: Start difference. First operand 27150 states and 29916 transitions. Second operand 7 states. [2020-10-14 04:22:07,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:22:07,448 INFO L93 Difference]: Finished difference Result 68888 states and 80096 transitions. [2020-10-14 04:22:07,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:22:07,450 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 661 [2020-10-14 04:22:07,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:22:07,523 INFO L225 Difference]: With dead ends: 68888 [2020-10-14 04:22:07,523 INFO L226 Difference]: Without dead ends: 42446 [2020-10-14 04:22:07,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:22:07,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42446 states. [2020-10-14 04:22:08,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42446 to 41410. [2020-10-14 04:22:08,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41410 states. [2020-10-14 04:22:08,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41410 states to 41410 states and 45656 transitions. [2020-10-14 04:22:08,350 INFO L78 Accepts]: Start accepts. Automaton has 41410 states and 45656 transitions. Word has length 661 [2020-10-14 04:22:08,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:22:08,351 INFO L479 AbstractCegarLoop]: Abstraction has 41410 states and 45656 transitions. [2020-10-14 04:22:08,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:22:08,352 INFO L276 IsEmpty]: Start isEmpty. Operand 41410 states and 45656 transitions. [2020-10-14 04:22:08,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 717 [2020-10-14 04:22:08,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:22:08,366 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:22:08,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 04:22:08,366 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:22:08,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:22:08,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1253395285, now seen corresponding path program 1 times [2020-10-14 04:22:08,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:22:08,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1149942583] [2020-10-14 04:22:08,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:22:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:22:08,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:10,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:13,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:22:13,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 732 [2020-10-14 04:22:13,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:22:13,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 04:22:13,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:22:13,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:22:13,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:22:13,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:22:13,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 04:22:13,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:22:13,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:22:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:22:13,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:13,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:22:13,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:22:13,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:22:13,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:22:13,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:22:13,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:22:13,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:22:13,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:22:13,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:22:13,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:22:13,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:22:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:22:13,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:13,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:22:13,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:22:13,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:22:13,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 04:22:13,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:22:13,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:22:13,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:22:13,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:22:13,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 04:22:13,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:22:13,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:22:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:22:13,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:14,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:22:14,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 390 [2020-10-14 04:22:14,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:22:14,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 04:22:14,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:22:14,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:22:14,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:22:14,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 387 [2020-10-14 04:22:14,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:22:14,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:22:14,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:22:14,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:22:14,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:14,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:22:14,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 04:22:14,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:22:14,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 04:22:14,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:22:14,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:22:14,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:22:14,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:22:14,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:22:14,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:22:14,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-14 04:22:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:22:14,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:14,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:22:14,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-14 04:22:14,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:22:14,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 04:22:14,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:22:14,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:22:14,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:22:14,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-10-14 04:22:14,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:22:14,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:22:14,557 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 18 proven. 234 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2020-10-14 04:22:14,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1149942583] [2020-10-14 04:22:14,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:22:14,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:22:14,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214868721] [2020-10-14 04:22:14,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:22:14,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:22:14,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:22:14,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:22:14,560 INFO L87 Difference]: Start difference. First operand 41410 states and 45656 transitions. Second operand 7 states. [2020-10-14 04:22:23,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:22:23,616 INFO L93 Difference]: Finished difference Result 89219 states and 98363 transitions. [2020-10-14 04:22:23,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:22:23,618 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 716 [2020-10-14 04:22:23,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:22:23,692 INFO L225 Difference]: With dead ends: 89219 [2020-10-14 04:22:23,693 INFO L226 Difference]: Without dead ends: 48517 [2020-10-14 04:22:23,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 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 04:22:23,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48517 states. [2020-10-14 04:22:24,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48517 to 48489. [2020-10-14 04:22:24,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48489 states. [2020-10-14 04:22:24,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48489 states to 48489 states and 53140 transitions. [2020-10-14 04:22:24,417 INFO L78 Accepts]: Start accepts. Automaton has 48489 states and 53140 transitions. Word has length 716 [2020-10-14 04:22:24,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:22:24,418 INFO L479 AbstractCegarLoop]: Abstraction has 48489 states and 53140 transitions. [2020-10-14 04:22:24,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:22:24,418 INFO L276 IsEmpty]: Start isEmpty. Operand 48489 states and 53140 transitions. [2020-10-14 04:22:24,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1294 [2020-10-14 04:22:24,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:22:24,460 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 04:22:24,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 04:22:24,460 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:22:24,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:22:24,461 INFO L82 PathProgramCache]: Analyzing trace with hash -651006712, now seen corresponding path program 1 times [2020-10-14 04:22:24,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:22:24,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1920314682] [2020-10-14 04:22:24,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:22:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:22:24,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:25,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:26,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:29,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:22:29,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1315 [2020-10-14 04:22:29,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:22:29,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-14 04:22:29,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:22:29,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:22:29,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:22:29,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 04:22:29,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 258 [2020-10-14 04:22:29,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:22:29,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:22:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:22:29,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:29,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:22:29,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:22:29,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:22:29,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:22:29,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:22:29,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:22:29,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:22:29,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:22:29,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:22:29,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:22:29,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:22:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:22:29,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:30,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:22:30,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 04:22:30,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:22:30,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 04:22:30,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:22:30,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:22:30,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:22:30,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:22:30,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:22:30,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:22:30,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:22:30,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:22:30,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:30,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:22:30,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 04:22:30,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:22:30,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 04:22:30,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:22:30,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:22:30,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:22:30,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:22:30,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:22:30,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:22:30,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 04:22:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:22:30,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:30,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:22:30,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 04:22:30,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:22:30,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:22:30,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:22:30,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:22:30,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:22:30,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:22:30,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:22:30,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:22:30,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 04:22:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:22:30,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:30,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:22:30,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 04:22:30,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:22:30,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 04:22:30,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:22:30,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:22:30,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:22:30,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:22:30,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 04:22:30,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:22:30,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:22:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:22:30,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:30,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:22:30,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 04:22:30,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:22:30,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 04:22:30,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:22:30,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:22:30,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:22:30,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:22:30,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 04:22:30,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:22:30,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 04:22:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:22:30,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:30,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:22:30,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 04:22:30,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:22:30,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-14 04:22:30,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:22:30,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:22:30,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:22:30,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:22:30,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 04:22:30,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:22:30,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1094 [2020-10-14 04:22:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:22:30,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:30,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:22:30,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-14 04:22:30,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:22:30,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 04:22:30,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:22:30,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:22:30,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:22:30,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-10-14 04:22:30,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:22:30,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:22:31,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 538 proven. 193 refuted. 0 times theorem prover too weak. 686 trivial. 0 not checked. [2020-10-14 04:22:31,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1920314682] [2020-10-14 04:22:31,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:22:31,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:22:31,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097170790] [2020-10-14 04:22:31,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:22:31,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:22:31,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:22:31,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:22:31,791 INFO L87 Difference]: Start difference. First operand 48489 states and 53140 transitions. Second operand 7 states. [2020-10-14 04:22:40,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:22:40,080 INFO L93 Difference]: Finished difference Result 105408 states and 115562 transitions. [2020-10-14 04:22:40,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 04:22:40,083 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1293 [2020-10-14 04:22:40,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:22:40,176 INFO L225 Difference]: With dead ends: 105408 [2020-10-14 04:22:40,177 INFO L226 Difference]: Without dead ends: 57627 [2020-10-14 04:22:40,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:22:40,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57627 states. [2020-10-14 04:22:40,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57627 to 57587. [2020-10-14 04:22:40,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57587 states. [2020-10-14 04:22:41,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57587 states to 57587 states and 62227 transitions. [2020-10-14 04:22:41,005 INFO L78 Accepts]: Start accepts. Automaton has 57587 states and 62227 transitions. Word has length 1293 [2020-10-14 04:22:41,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:22:41,006 INFO L479 AbstractCegarLoop]: Abstraction has 57587 states and 62227 transitions. [2020-10-14 04:22:41,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:22:41,006 INFO L276 IsEmpty]: Start isEmpty. Operand 57587 states and 62227 transitions. [2020-10-14 04:22:41,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1469 [2020-10-14 04:22:41,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:22:41,089 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 04:22:41,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 04:22:41,090 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:22:41,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:22:41,091 INFO L82 PathProgramCache]: Analyzing trace with hash 844026377, now seen corresponding path program 1 times [2020-10-14 04:22:41,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:22:41,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225101426] [2020-10-14 04:22:41,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:22:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:22:41,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:42,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:22:43,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking...