/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_label55.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:23:18,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:23:18,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:23:19,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:23:19,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:23:19,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:23:19,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:23:19,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:23:19,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:23:19,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:23:19,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:23:19,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:23:19,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:23:19,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:23:19,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:23:19,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:23:19,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:23:19,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:23:19,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:23:19,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:23:19,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:23:19,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:23:19,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:23:19,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:23:19,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:23:19,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:23:19,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:23:19,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:23:19,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:23:19,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:23:19,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:23:19,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:23:19,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:23:19,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:23:19,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:23:19,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:23:19,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:23:19,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:23:19,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:23:19,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:23:19,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:23:19,103 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 04:23:19,147 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:23:19,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:23:19,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:23:19,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:23:19,151 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:23:19,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:23:19,152 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:23:19,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:23:19,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:23:19,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:23:19,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:23:19,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:23:19,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:23:19,153 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:23:19,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:23:19,153 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:23:19,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:23:19,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:23:19,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:23:19,155 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:23:19,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:23:19,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:23:19,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:23:19,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:23:19,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:23:19,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:23:19,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:23:19,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:23:19,157 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:23:19,158 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 04:23:19,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:23:19,469 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:23:19,472 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:23:19,473 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:23:19,474 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:23:19,474 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label55.c [2020-10-14 04:23:19,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f17797d0/4c3020e0a20549049eba698be6a3f22b/FLAGdec6e0ac9 [2020-10-14 04:23:20,331 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:23:20,332 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label55.c [2020-10-14 04:23:20,358 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f17797d0/4c3020e0a20549049eba698be6a3f22b/FLAGdec6e0ac9 [2020-10-14 04:23:20,392 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f17797d0/4c3020e0a20549049eba698be6a3f22b [2020-10-14 04:23:20,402 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:23:20,404 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:23:20,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:23:20,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:23:20,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:23:20,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:23:20" (1/1) ... [2020-10-14 04:23:20,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef7a733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:20, skipping insertion in model container [2020-10-14 04:23:20,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:23:20" (1/1) ... [2020-10-14 04:23:20,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:23:20,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:23:22,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:23:22,205 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:23:22,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:23:22,690 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:23:22,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:22 WrapperNode [2020-10-14 04:23:22,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:23:22,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:23:22,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:23:22,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:23:22,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:22" (1/1) ... [2020-10-14 04:23:22,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:22" (1/1) ... [2020-10-14 04:23:22,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:22" (1/1) ... [2020-10-14 04:23:22,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:22" (1/1) ... [2020-10-14 04:23:22,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:22" (1/1) ... [2020-10-14 04:23:22,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:22" (1/1) ... [2020-10-14 04:23:22,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:22" (1/1) ... [2020-10-14 04:23:22,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:23:22,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:23:22,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:23:22,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:23:22,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:22" (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 04:23:23,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:23:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:23:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 04:23:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 04:23:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 04:23:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:23:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 04:23:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 04:23:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 04:23:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:23:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 04:23:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 04:23:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:23:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:23:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:23:29,186 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:23:29,187 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 04:23:29,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:23:29 BoogieIcfgContainer [2020-10-14 04:23:29,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:23:29,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:23:29,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:23:29,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:23:29,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:23:20" (1/3) ... [2020-10-14 04:23:29,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239f57cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:23:29, skipping insertion in model container [2020-10-14 04:23:29,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:22" (2/3) ... [2020-10-14 04:23:29,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239f57cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:23:29, skipping insertion in model container [2020-10-14 04:23:29,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:23:29" (3/3) ... [2020-10-14 04:23:29,206 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label55.c [2020-10-14 04:23:29,218 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:23:29,227 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:23:29,241 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:23:29,273 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:23:29,273 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:23:29,273 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:23:29,273 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:23:29,273 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:23:29,274 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:23:29,274 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:23:29,274 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:23:29,308 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 04:23:29,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-14 04:23:29,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:23:29,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:23:29,316 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:23:29,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:23:29,323 INFO L82 PathProgramCache]: Analyzing trace with hash 184890441, now seen corresponding path program 1 times [2020-10-14 04:23:29,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:23:29,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831596076] [2020-10-14 04:23:29,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:23:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:29,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:29,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:29,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 04:23:29,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:23:29,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-10-14 04:23:29,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:29,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:29,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:23:29,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:23:29,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 04:23:29,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:23:29,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:23:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:29,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:29,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:29,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:23:29,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:23:29,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 04:23:29,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:29,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:29,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:23:29,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:23:29,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:23:29,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:23:29,910 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 04:23:29,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831596076] [2020-10-14 04:23:29,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:23:29,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:23:29,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548059688] [2020-10-14 04:23:29,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:23:29,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:23:29,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:23:29,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:23:29,939 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 5 states. [2020-10-14 04:23:49,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:23:49,243 INFO L93 Difference]: Finished difference Result 2984 states and 5769 transitions. [2020-10-14 04:23:49,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:23:49,246 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-14 04:23:49,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:23:49,284 INFO L225 Difference]: With dead ends: 2984 [2020-10-14 04:23:49,285 INFO L226 Difference]: Without dead ends: 2142 [2020-10-14 04:23:49,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:23:49,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states. [2020-10-14 04:23:49,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 2135. [2020-10-14 04:23:49,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2135 states. [2020-10-14 04:23:49,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 3571 transitions. [2020-10-14 04:23:49,465 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 3571 transitions. Word has length 18 [2020-10-14 04:23:49,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:23:49,465 INFO L479 AbstractCegarLoop]: Abstraction has 2135 states and 3571 transitions. [2020-10-14 04:23:49,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:23:49,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 3571 transitions. [2020-10-14 04:23:49,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-14 04:23:49,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:23:49,472 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:23:49,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:23:49,472 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:23:49,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:23:49,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1814973760, now seen corresponding path program 1 times [2020-10-14 04:23:49,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:23:49,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717930799] [2020-10-14 04:23:49,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:23:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:49,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:49,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:50,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:50,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 04:23:50,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:23:50,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 900 [2020-10-14 04:23:50,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:50,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:50,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:23:50,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 04:23:50,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 04:23:50,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:23:50,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:23:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:50,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:50,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:50,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:23:50,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:23:50,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:23:50,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:50,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:23:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:23:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:23:50,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:23:50,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:23:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:50,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:50,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:50,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 04:23:50,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:23:50,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 04:23:50,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:50,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:50,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:23:50,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:23:50,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 04:23:50,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:23:50,660 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:23:50,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1717930799] [2020-10-14 04:23:50,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:23:50,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 04:23:50,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781753324] [2020-10-14 04:23:50,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:23:50,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:23:50,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:23:50,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:23:50,665 INFO L87 Difference]: Start difference. First operand 2135 states and 3571 transitions. Second operand 6 states. [2020-10-14 04:24:04,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:24:04,270 INFO L93 Difference]: Finished difference Result 8545 states and 14529 transitions. [2020-10-14 04:24:04,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:24:04,271 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 106 [2020-10-14 04:24:04,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:24:04,308 INFO L225 Difference]: With dead ends: 8545 [2020-10-14 04:24:04,308 INFO L226 Difference]: Without dead ends: 6416 [2020-10-14 04:24:04,315 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 04:24:04,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6416 states. [2020-10-14 04:24:04,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6416 to 6397. [2020-10-14 04:24:04,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6397 states. [2020-10-14 04:24:04,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6397 states to 6397 states and 10234 transitions. [2020-10-14 04:24:04,490 INFO L78 Accepts]: Start accepts. Automaton has 6397 states and 10234 transitions. Word has length 106 [2020-10-14 04:24:04,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:24:04,491 INFO L479 AbstractCegarLoop]: Abstraction has 6397 states and 10234 transitions. [2020-10-14 04:24:04,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:24:04,492 INFO L276 IsEmpty]: Start isEmpty. Operand 6397 states and 10234 transitions. [2020-10-14 04:24:04,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-14 04:24:04,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:24:04,498 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:24:04,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:24:04,498 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:24:04,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:24:04,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1536276696, now seen corresponding path program 1 times [2020-10-14 04:24:04,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:24:04,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606558240] [2020-10-14 04:24:04,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:24:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:04,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:04,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:05,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:05,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 04:24:05,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:24:05,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 932 [2020-10-14 04:24:05,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:05,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:05,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:24:05,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 04:24:05,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 04:24:05,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:05,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:24:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:05,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:05,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:05,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:24:05,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:05,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:24:05,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:05,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:05,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:24:05,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:05,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:24:05,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:05,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:24:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:05,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:05,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:05,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 04:24:05,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:05,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 04:24:05,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:05,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:05,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:24:05,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:05,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 04:24:05,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:05,795 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:24:05,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [606558240] [2020-10-14 04:24:05,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:24:05,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:24:05,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833061315] [2020-10-14 04:24:05,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:24:05,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:24:05,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:24:05,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:24:05,800 INFO L87 Difference]: Start difference. First operand 6397 states and 10234 transitions. Second operand 5 states. [2020-10-14 04:24:14,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:24:14,729 INFO L93 Difference]: Finished difference Result 19194 states and 31277 transitions. [2020-10-14 04:24:14,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:24:14,730 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 150 [2020-10-14 04:24:14,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:24:14,805 INFO L225 Difference]: With dead ends: 19194 [2020-10-14 04:24:14,806 INFO L226 Difference]: Without dead ends: 12803 [2020-10-14 04:24:14,826 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 04:24:14,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12803 states. [2020-10-14 04:24:15,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12803 to 12082. [2020-10-14 04:24:15,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12082 states. [2020-10-14 04:24:15,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12082 states to 12082 states and 17502 transitions. [2020-10-14 04:24:15,253 INFO L78 Accepts]: Start accepts. Automaton has 12082 states and 17502 transitions. Word has length 150 [2020-10-14 04:24:15,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:24:15,254 INFO L479 AbstractCegarLoop]: Abstraction has 12082 states and 17502 transitions. [2020-10-14 04:24:15,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:24:15,254 INFO L276 IsEmpty]: Start isEmpty. Operand 12082 states and 17502 transitions. [2020-10-14 04:24:15,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-14 04:24:15,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:24:15,267 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:24:15,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:24:15,267 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:24:15,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:24:15,268 INFO L82 PathProgramCache]: Analyzing trace with hash -386793032, now seen corresponding path program 1 times [2020-10-14 04:24:15,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:24:15,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269087930] [2020-10-14 04:24:15,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:24:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:15,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:15,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:16,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:16,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-14 04:24:16,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:24:16,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1374 [2020-10-14 04:24:16,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:16,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:16,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:24:16,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 262 [2020-10-14 04:24:16,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 04:24:16,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:16,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:24:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:16,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:16,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:16,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:24:16,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:16,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:24:16,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:16,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:16,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:24:16,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:16,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:24:16,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:16,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:24:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:16,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:17,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:17,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 04:24:17,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:17,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-14 04:24:17,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:17,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:17,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:24:17,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:17,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 247 [2020-10-14 04:24:17,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:17,418 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:24:17,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269087930] [2020-10-14 04:24:17,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:24:17,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:24:17,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836984918] [2020-10-14 04:24:17,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:24:17,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:24:17,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:24:17,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:24:17,424 INFO L87 Difference]: Start difference. First operand 12082 states and 17502 transitions. Second operand 5 states. [2020-10-14 04:24:29,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:24:29,252 INFO L93 Difference]: Finished difference Result 29842 states and 44975 transitions. [2020-10-14 04:24:29,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:24:29,253 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 270 [2020-10-14 04:24:29,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:24:29,343 INFO L225 Difference]: With dead ends: 29842 [2020-10-14 04:24:29,344 INFO L226 Difference]: Without dead ends: 17766 [2020-10-14 04:24:29,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:24:29,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17766 states. [2020-10-14 04:24:29,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17766 to 17755. [2020-10-14 04:24:29,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17755 states. [2020-10-14 04:24:29,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17755 states to 17755 states and 25343 transitions. [2020-10-14 04:24:29,938 INFO L78 Accepts]: Start accepts. Automaton has 17755 states and 25343 transitions. Word has length 270 [2020-10-14 04:24:29,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:24:29,944 INFO L479 AbstractCegarLoop]: Abstraction has 17755 states and 25343 transitions. [2020-10-14 04:24:29,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:24:29,944 INFO L276 IsEmpty]: Start isEmpty. Operand 17755 states and 25343 transitions. [2020-10-14 04:24:29,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2020-10-14 04:24:29,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:24:29,985 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:29,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 04:24:29,986 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:24:29,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:24:29,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1249431456, now seen corresponding path program 1 times [2020-10-14 04:24:29,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:24:29,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [976709285] [2020-10-14 04:24:29,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:24:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:30,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:30,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:31,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:32,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:35,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:35,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 512 [2020-10-14 04:24:35,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:24:35,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 04:24:35,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:35,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:35,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:24:35,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 04:24:35,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 04:24:35,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:35,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:24:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:35,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:35,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:35,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:24:35,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:35,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:24:35,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:35,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:35,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:24:35,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:35,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:24:35,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:35,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:24:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:35,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:35,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:35,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 04:24:35,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:35,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 04:24:35,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:35,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:35,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:24:35,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:35,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 04:24:35,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:35,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 04:24:35,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:35,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:35,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:37,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:37,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 395 [2020-10-14 04:24:37,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:24:37,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1656 [2020-10-14 04:24:37,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:37,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:37,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:24:37,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:24:37,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 395 [2020-10-14 04:24:37,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:37,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:24:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:37,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:37,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:37,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 04:24:37,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:37,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 04:24:37,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:37,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:37,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:24:37,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:37,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 04:24:37,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:38,884 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 107 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:24:38,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [976709285] [2020-10-14 04:24:38,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:24:38,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 04:24:38,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577363218] [2020-10-14 04:24:38,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:24:38,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:24:38,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:24:38,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:24:38,888 INFO L87 Difference]: Start difference. First operand 17755 states and 25343 transitions. Second operand 6 states. [2020-10-14 04:24:46,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:24:46,003 INFO L93 Difference]: Finished difference Result 35560 states and 50840 transitions. [2020-10-14 04:24:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:24:46,007 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 498 [2020-10-14 04:24:46,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:24:46,083 INFO L225 Difference]: With dead ends: 35560 [2020-10-14 04:24:46,084 INFO L226 Difference]: Without dead ends: 17793 [2020-10-14 04:24:46,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:24:46,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17793 states. [2020-10-14 04:24:46,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17793 to 17755. [2020-10-14 04:24:46,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17755 states. [2020-10-14 04:24:46,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17755 states to 17755 states and 25310 transitions. [2020-10-14 04:24:46,516 INFO L78 Accepts]: Start accepts. Automaton has 17755 states and 25310 transitions. Word has length 498 [2020-10-14 04:24:46,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:24:46,517 INFO L479 AbstractCegarLoop]: Abstraction has 17755 states and 25310 transitions. [2020-10-14 04:24:46,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:24:46,517 INFO L276 IsEmpty]: Start isEmpty. Operand 17755 states and 25310 transitions. [2020-10-14 04:24:46,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2020-10-14 04:24:46,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:24:46,556 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:46,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 04:24:46,556 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:24:46,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:24:46,557 INFO L82 PathProgramCache]: Analyzing trace with hash -791818944, now seen corresponding path program 1 times [2020-10-14 04:24:46,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:24:46,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [738683802] [2020-10-14 04:24:46,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:24:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:46,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:46,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:49,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:51,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:51,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 539 [2020-10-14 04:24:51,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:24:51,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-14 04:24:51,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:51,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:51,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:24:51,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 04:24:51,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 439 [2020-10-14 04:24:51,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:51,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:24:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:51,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:51,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:51,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:24:51,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:51,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:24:51,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:51,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:51,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:24:51,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:51,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:24:51,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:51,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:24:51,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:51,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:51,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:51,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:24:51,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:51,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 04:24:51,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:51,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:51,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:24:51,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:51,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 04:24:51,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:24:51,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 04:24:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:52,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:52,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:52,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 440 [2020-10-14 04:24:52,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:52,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 924 [2020-10-14 04:24:52,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:52,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:52,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:24:52,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:24:52,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 440 [2020-10-14 04:24:52,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:53,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:24:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:53,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:53,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:53,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-14 04:24:53,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:53,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-14 04:24:53,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:53,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:53,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:24:53,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:24:53,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 04:24:53,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:24:53,830 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 89 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:24:53,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [738683802] [2020-10-14 04:24:53,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:24:53,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 04:24:53,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735722630] [2020-10-14 04:24:53,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:24:53,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:24:53,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:24:53,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:24:53,839 INFO L87 Difference]: Start difference. First operand 17755 states and 25310 transitions. Second operand 8 states. [2020-10-14 04:25:04,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:25:04,709 INFO L93 Difference]: Finished difference Result 35693 states and 51090 transitions. [2020-10-14 04:25:04,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:25:04,710 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 525 [2020-10-14 04:25:04,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:25:04,770 INFO L225 Difference]: With dead ends: 35693 [2020-10-14 04:25:04,770 INFO L226 Difference]: Without dead ends: 17944 [2020-10-14 04:25:04,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:25:04,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17944 states. [2020-10-14 04:25:05,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17944 to 13684. [2020-10-14 04:25:05,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13684 states. [2020-10-14 04:25:05,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13684 states to 13684 states and 17241 transitions. [2020-10-14 04:25:05,099 INFO L78 Accepts]: Start accepts. Automaton has 13684 states and 17241 transitions. Word has length 525 [2020-10-14 04:25:05,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:25:05,100 INFO L479 AbstractCegarLoop]: Abstraction has 13684 states and 17241 transitions. [2020-10-14 04:25:05,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:25:05,100 INFO L276 IsEmpty]: Start isEmpty. Operand 13684 states and 17241 transitions. [2020-10-14 04:25:05,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2020-10-14 04:25:05,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:25:05,132 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:25:05,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 04:25:05,133 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:25:05,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:25:05,133 INFO L82 PathProgramCache]: Analyzing trace with hash -850048001, now seen corresponding path program 1 times [2020-10-14 04:25:05,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:25:05,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648672893] [2020-10-14 04:25:05,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:25:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:05,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:05,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:08,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:08,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 615 [2020-10-14 04:25:08,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:25:08,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3750 [2020-10-14 04:25:08,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:08,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:25:08,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-10-14 04:25:08,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 439 [2020-10-14 04:25:08,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:09,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:25:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:09,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:09,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:09,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:25:09,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:09,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:25:09,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:09,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:09,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:09,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:09,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:09,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:09,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:25:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:09,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:09,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:09,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 04:25:09,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:09,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 04:25:09,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:09,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:09,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:09,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:09,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:09,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:09,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 04:25:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:09,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:09,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:09,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 04:25:09,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:09,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 04:25:09,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:09,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:09,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:25:09,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:09,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 04:25:09,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:09,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 04:25:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:09,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:09,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:09,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 440 [2020-10-14 04:25:09,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:09,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 712 [2020-10-14 04:25:09,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:09,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:09,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:25:09,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:25:09,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 440 [2020-10-14 04:25:09,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:10,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:25:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:10,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:10,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:10,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-14 04:25:10,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:10,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-14 04:25:10,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:10,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:10,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:25:10,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:25:10,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 04:25:10,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:11,190 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-14 04:25:11,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648672893] [2020-10-14 04:25:11,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:25:11,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 04:25:11,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186453126] [2020-10-14 04:25:11,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:25:11,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:25:11,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:25:11,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:25:11,193 INFO L87 Difference]: Start difference. First operand 13684 states and 17241 transitions. Second operand 8 states. [2020-10-14 04:25:26,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:25:26,480 INFO L93 Difference]: Finished difference Result 42186 states and 57115 transitions. [2020-10-14 04:25:26,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 04:25:26,481 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 599 [2020-10-14 04:25:26,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:25:26,577 INFO L225 Difference]: With dead ends: 42186 [2020-10-14 04:25:26,578 INFO L226 Difference]: Without dead ends: 28508 [2020-10-14 04:25:26,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-14 04:25:26,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28508 states. [2020-10-14 04:25:27,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28508 to 26756. [2020-10-14 04:25:27,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26756 states. [2020-10-14 04:25:27,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26756 states to 26756 states and 33865 transitions. [2020-10-14 04:25:27,184 INFO L78 Accepts]: Start accepts. Automaton has 26756 states and 33865 transitions. Word has length 599 [2020-10-14 04:25:27,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:25:27,185 INFO L479 AbstractCegarLoop]: Abstraction has 26756 states and 33865 transitions. [2020-10-14 04:25:27,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:25:27,185 INFO L276 IsEmpty]: Start isEmpty. Operand 26756 states and 33865 transitions. [2020-10-14 04:25:27,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2020-10-14 04:25:27,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:25:27,253 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:25:27,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 04:25:27,253 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:25:27,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:25:27,254 INFO L82 PathProgramCache]: Analyzing trace with hash 746595992, now seen corresponding path program 1 times [2020-10-14 04:25:27,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:25:27,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949102467] [2020-10-14 04:25:27,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:25:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:27,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:28,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:28,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:32,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:32,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 676 [2020-10-14 04:25:32,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:25:32,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-14 04:25:32,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:32,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:32,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:25:32,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 655 [2020-10-14 04:25:32,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 04:25:32,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:32,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:25:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:32,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:32,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:32,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:25:32,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:32,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:25:32,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:32,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:32,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:32,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:32,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:32,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:32,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:25:32,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:32,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:32,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:32,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 04:25:32,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:32,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 04:25:32,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:32,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:32,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:32,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:32,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:32,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:32,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-10-14 04:25:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:32,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:32,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:32,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 395 [2020-10-14 04:25:32,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:32,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 04:25:32,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:32,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:32,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:25:32,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:32,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 386 [2020-10-14 04:25:32,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:32,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:25:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:33,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:33,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:33,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 04:25:33,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:33,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 04:25:33,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:33,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:33,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:25:33,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:33,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 04:25:33,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:33,420 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2020-10-14 04:25:33,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949102467] [2020-10-14 04:25:33,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:25:33,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:25:33,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817234991] [2020-10-14 04:25:33,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:25:33,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:25:33,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:25:33,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:25:33,423 INFO L87 Difference]: Start difference. First operand 26756 states and 33865 transitions. Second operand 5 states. [2020-10-14 04:25:46,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:25:46,244 INFO L93 Difference]: Finished difference Result 70528 states and 91045 transitions. [2020-10-14 04:25:46,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:25:46,245 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 662 [2020-10-14 04:25:46,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:25:46,336 INFO L225 Difference]: With dead ends: 70528 [2020-10-14 04:25:46,337 INFO L226 Difference]: Without dead ends: 45196 [2020-10-14 04:25:46,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 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 04:25:46,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45196 states. [2020-10-14 04:25:48,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45196 to 43782. [2020-10-14 04:25:48,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43782 states. [2020-10-14 04:25:48,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43782 states to 43782 states and 53752 transitions. [2020-10-14 04:25:48,588 INFO L78 Accepts]: Start accepts. Automaton has 43782 states and 53752 transitions. Word has length 662 [2020-10-14 04:25:48,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:25:48,588 INFO L479 AbstractCegarLoop]: Abstraction has 43782 states and 53752 transitions. [2020-10-14 04:25:48,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:25:48,589 INFO L276 IsEmpty]: Start isEmpty. Operand 43782 states and 53752 transitions. [2020-10-14 04:25:48,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2020-10-14 04:25:48,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:25:48,650 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:25:48,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 04:25:48,650 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:25:48,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:25:48,651 INFO L82 PathProgramCache]: Analyzing trace with hash -83397521, now seen corresponding path program 1 times [2020-10-14 04:25:48,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:25:48,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870428619] [2020-10-14 04:25:48,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:25:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:48,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:49,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:49,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:53,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:53,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 744 [2020-10-14 04:25:53,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:25:53,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 04:25:53,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:53,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:53,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:25:53,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 285 [2020-10-14 04:25:53,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 439 [2020-10-14 04:25:53,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:53,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:25:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:53,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:53,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:53,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:25:53,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:53,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:25:53,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:53,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:53,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:53,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:53,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:53,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:53,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:25:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:53,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:53,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:53,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 04:25:53,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:53,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 04:25:53,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:53,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:53,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:53,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:53,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:53,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:53,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 04:25:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:53,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:53,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:53,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 04:25:53,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:53,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 04:25:53,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:53,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:53,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:53,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:53,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:53,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:53,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 04:25:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:53,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:53,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:53,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 04:25:53,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:53,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 04:25:53,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:53,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:53,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:25:53,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:53,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 04:25:53,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:54,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2020-10-14 04:25:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:54,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:54,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:54,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 440 [2020-10-14 04:25:54,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:54,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 504 [2020-10-14 04:25:54,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:54,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:54,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:25:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:25:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 440 [2020-10-14 04:25:54,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:54,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:25:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:54,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:54,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:54,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-14 04:25:54,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:54,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-14 04:25:54,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:54,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:54,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:25:54,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:25:54,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 04:25:54,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:55,552 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 316 proven. 2 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2020-10-14 04:25:55,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870428619] [2020-10-14 04:25:55,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:25:55,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 04:25:55,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875299074] [2020-10-14 04:25:55,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:25:55,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:25:55,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:25:55,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:25:55,556 INFO L87 Difference]: Start difference. First operand 43782 states and 53752 transitions. Second operand 8 states. [2020-10-14 04:26:12,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:26:12,089 INFO L93 Difference]: Finished difference Result 91335 states and 112404 transitions. [2020-10-14 04:26:12,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 04:26:12,091 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 726 [2020-10-14 04:26:12,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:26:12,194 INFO L225 Difference]: With dead ends: 91335 [2020-10-14 04:26:12,194 INFO L226 Difference]: Without dead ends: 46152 [2020-10-14 04:26:12,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 04:26:12,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46152 states. [2020-10-14 04:26:12,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46152 to 44008. [2020-10-14 04:26:12,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44008 states. [2020-10-14 04:26:12,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44008 states to 44008 states and 50942 transitions. [2020-10-14 04:26:12,882 INFO L78 Accepts]: Start accepts. Automaton has 44008 states and 50942 transitions. Word has length 726 [2020-10-14 04:26:12,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:26:12,884 INFO L479 AbstractCegarLoop]: Abstraction has 44008 states and 50942 transitions. [2020-10-14 04:26:12,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:26:12,884 INFO L276 IsEmpty]: Start isEmpty. Operand 44008 states and 50942 transitions. [2020-10-14 04:26:12,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2020-10-14 04:26:12,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:26:12,936 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:26:12,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 04:26:12,937 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:26:12,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:26:12,937 INFO L82 PathProgramCache]: Analyzing trace with hash 563190675, now seen corresponding path program 1 times [2020-10-14 04:26:12,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:26:12,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [842618301] [2020-10-14 04:26:12,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:26:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:13,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:13,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:15,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:18,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:18,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 746 [2020-10-14 04:26:18,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:26:18,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 04:26:18,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:18,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:18,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:26:18,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-10-14 04:26:18,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 04:26:18,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:18,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:26:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:18,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:18,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:18,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:26:18,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:18,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:26:18,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:18,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:18,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:26:18,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:18,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:26:18,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:26:18,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:26:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:18,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:18,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:18,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 04:26:18,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:18,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 04:26:18,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:18,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:18,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:26:18,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:18,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:26:18,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:18,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 04:26:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:18,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:18,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:18,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 04:26:18,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:18,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 04:26:18,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:18,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:18,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:26:18,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:18,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 04:26:18,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:26:18,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 04:26:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:18,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:18,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:18,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 04:26:18,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:18,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 04:26:18,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:18,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:18,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:26:18,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:26:18,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 04:26:18,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:18,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2020-10-14 04:26:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:18,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:18,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:18,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 440 [2020-10-14 04:26:18,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:18,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 04:26:18,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:18,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:18,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:26:18,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 437 [2020-10-14 04:26:18,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:26:18,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:26:18,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:26:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:18,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:18,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:18,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-14 04:26:18,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:18,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 04:26:18,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:18,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:18,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:26:18,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:18,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:26:18,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:19,405 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 195 proven. 128 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2020-10-14 04:26:19,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [842618301] [2020-10-14 04:26:19,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:26:19,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:26:19,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68871728] [2020-10-14 04:26:19,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:26:19,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:26:19,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:26:19,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:26:19,408 INFO L87 Difference]: Start difference. First operand 44008 states and 50942 transitions. Second operand 7 states. [2020-10-14 04:26:40,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:26:40,320 INFO L93 Difference]: Finished difference Result 94206 states and 111795 transitions. [2020-10-14 04:26:40,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 04:26:40,322 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 728 [2020-10-14 04:26:40,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:26:40,441 INFO L225 Difference]: With dead ends: 94206 [2020-10-14 04:26:40,442 INFO L226 Difference]: Without dead ends: 51612 [2020-10-14 04:26:40,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:26:40,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51612 states. [2020-10-14 04:26:41,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51612 to 51197. [2020-10-14 04:26:41,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51197 states. [2020-10-14 04:26:41,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51197 states to 51197 states and 58690 transitions. [2020-10-14 04:26:41,768 INFO L78 Accepts]: Start accepts. Automaton has 51197 states and 58690 transitions. Word has length 728 [2020-10-14 04:26:41,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:26:41,769 INFO L479 AbstractCegarLoop]: Abstraction has 51197 states and 58690 transitions. [2020-10-14 04:26:41,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:26:41,769 INFO L276 IsEmpty]: Start isEmpty. Operand 51197 states and 58690 transitions. [2020-10-14 04:26:41,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 784 [2020-10-14 04:26:41,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:26:41,837 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:26:41,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 04:26:41,837 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:26:41,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:26:41,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1506142954, now seen corresponding path program 1 times [2020-10-14 04:26:41,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:26:41,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2071950244] [2020-10-14 04:26:41,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:26:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:42,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:42,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:42,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:47,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:47,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 801 [2020-10-14 04:26:47,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:26:47,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-14 04:26:47,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:47,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:47,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:26:47,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 211 [2020-10-14 04:26:47,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 04:26:47,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:47,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:26:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:47,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:47,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:47,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:26:47,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:47,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:26:47,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:47,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:47,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:26:47,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:47,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:26:47,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:47,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:26:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:47,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:47,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:47,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 04:26:47,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:47,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 04:26:47,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:47,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:47,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:26:47,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:47,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:26:47,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:47,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 04:26:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:47,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:47,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:47,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 04:26:47,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:47,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 04:26:47,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:47,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:47,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:26:47,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:47,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 04:26:47,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:47,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-10-14 04:26:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:47,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:47,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:47,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 04:26:47,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:47,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 04:26:47,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:47,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:47,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:26:47,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:26:47,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 04:26:47,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:47,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2020-10-14 04:26:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:47,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:47,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:47,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 440 [2020-10-14 04:26:47,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:47,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-14 04:26:47,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:47,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:47,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:26:47,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 437 [2020-10-14 04:26:47,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:26:47,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:47,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:26:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:47,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:47,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:47,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-14 04:26:47,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:47,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 04:26:47,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:47,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:47,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:26:47,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:47,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:26:47,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:48,044 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 250 proven. 128 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-10-14 04:26:48,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2071950244] [2020-10-14 04:26:48,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:26:48,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:26:48,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369329554] [2020-10-14 04:26:48,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:26:48,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:26:48,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:26:48,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:26:48,047 INFO L87 Difference]: Start difference. First operand 51197 states and 58690 transitions. Second operand 7 states.