/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 SingleStatement --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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_o200.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:41:24,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:41:24,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:41:24,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:41:24,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:41:24,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:41:24,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:41:24,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:41:24,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:41:24,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:41:24,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:41:24,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:41:24,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:41:24,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:41:24,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:41:24,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:41:24,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:41:24,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:41:24,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:41:24,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:41:24,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:41:24,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:41:24,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:41:24,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:41:24,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:41:24,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:41:24,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:41:24,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:41:24,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:41:24,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:41:24,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:41:24,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:41:24,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:41:24,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:41:24,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:41:24,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:41:24,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:41:24,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:41:24,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:41:24,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:41:24,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:41:24,218 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 [2020-09-24 22:41:24,246 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:41:24,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:41:24,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:41:24,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:41:24,248 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:41:24,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:41:24,248 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:41:24,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:41:24,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:41:24,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:41:24,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:41:24,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:41:24,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:41:24,250 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:41:24,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:41:24,250 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:41:24,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:41:24,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:41:24,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:41:24,251 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:41:24,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:41:24,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:41:24,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:41:24,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:41:24,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:41:24,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:41:24,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:41:24,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:41:24,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:41:24,253 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 -> SingleStatement 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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:41:24,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:41:24,726 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:41:24,731 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:41:24,733 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:41:24,734 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:41:24,735 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o200.c [2020-09-24 22:41:24,818 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b2c552ff/4c71ea4ce4da472ca97658dd2227bcc4/FLAG638d087f0 [2020-09-24 22:41:25,313 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:41:25,314 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o200.c [2020-09-24 22:41:25,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b2c552ff/4c71ea4ce4da472ca97658dd2227bcc4/FLAG638d087f0 [2020-09-24 22:41:25,658 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b2c552ff/4c71ea4ce4da472ca97658dd2227bcc4 [2020-09-24 22:41:25,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:41:25,676 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:41:25,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:41:25,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:41:25,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:41:25,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:41:25" (1/1) ... [2020-09-24 22:41:25,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70996f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:25, skipping insertion in model container [2020-09-24 22:41:25,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:41:25" (1/1) ... [2020-09-24 22:41:25,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:41:25,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:41:26,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:41:26,018 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:41:26,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:41:26,048 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:41:26,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:26 WrapperNode [2020-09-24 22:41:26,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:41:26,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:41:26,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:41:26,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:41:26,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:26" (1/1) ... [2020-09-24 22:41:26,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:26" (1/1) ... [2020-09-24 22:41:26,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:26" (1/1) ... [2020-09-24 22:41:26,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:26" (1/1) ... [2020-09-24 22:41:26,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:26" (1/1) ... [2020-09-24 22:41:26,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:26" (1/1) ... [2020-09-24 22:41:26,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:26" (1/1) ... [2020-09-24 22:41:26,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:41:26,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:41:26,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:41:26,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:41:26,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:26" (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 [2020-09-24 22:41:26,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:41:26,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:41:26,241 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-24 22:41:26,242 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:41:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 22:41:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:41:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-24 22:41:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:41:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:41:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:41:26,431 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:41:26,432 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 22:41:26,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:41:26 BoogieIcfgContainer [2020-09-24 22:41:26,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:41:26,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:41:26,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:41:26,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:41:26,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:41:25" (1/3) ... [2020-09-24 22:41:26,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523253d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:41:26, skipping insertion in model container [2020-09-24 22:41:26,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:26" (2/3) ... [2020-09-24 22:41:26,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523253d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:41:26, skipping insertion in model container [2020-09-24 22:41:26,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:41:26" (3/3) ... [2020-09-24 22:41:26,448 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o200.c [2020-09-24 22:41:26,460 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:41:26,472 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:41:26,498 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:41:26,541 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:41:26,541 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:41:26,542 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:41:26,545 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:41:26,545 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:41:26,545 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:41:26,546 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:41:26,546 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:41:26,587 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-24 22:41:26,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 22:41:26,596 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:26,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:41:26,598 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:26,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:26,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1651991454, now seen corresponding path program 1 times [2020-09-24 22:41:26,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:26,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [243283498] [2020-09-24 22:41:26,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:26,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:26,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:26,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 22:41:26,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:26,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 22:41:26,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:26,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:41:26,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 22:41:26,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:26,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:41:26,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:26,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:26,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:26,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:26,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:26,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:41:26,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:26,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:26,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:26,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:26,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:26,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:26,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:26,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:26,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:26,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:26,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 22:41:26,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:26,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:26,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:26,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:26,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:26,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:41:27,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [243283498] [2020-09-24 22:41:27,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:41:27,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:41:27,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327131136] [2020-09-24 22:41:27,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:41:27,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:27,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:41:27,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:41:27,034 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-09-24 22:41:27,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:27,128 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-24 22:41:27,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 22:41:27,130 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 22:41:27,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:27,145 INFO L225 Difference]: With dead ends: 37 [2020-09-24 22:41:27,145 INFO L226 Difference]: Without dead ends: 22 [2020-09-24 22:41:27,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:41:27,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-24 22:41:27,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-24 22:41:27,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-24 22:41:27,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-09-24 22:41:27,202 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2020-09-24 22:41:27,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:27,203 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-09-24 22:41:27,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:41:27,203 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-09-24 22:41:27,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-24 22:41:27,206 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:27,206 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:41:27,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:41:27,207 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:27,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:27,207 INFO L82 PathProgramCache]: Analyzing trace with hash 189324707, now seen corresponding path program 1 times [2020-09-24 22:41:27,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:27,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886826311] [2020-09-24 22:41:27,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:27,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:27,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:27,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 22:41:27,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:27,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-09-24 22:41:27,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:27,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:41:27,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 22:41:27,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 22:41:27,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:27,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:27,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:27,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:27,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:27,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:27,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:41:27,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:27,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:27,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:27,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:27,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:27,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:27,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:27,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:27,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:27,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:27,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 22:41:27,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:27,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:27,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:27,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:27,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:27,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:27,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:27,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:27,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:27,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:27,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 22:41:27,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:27,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:27,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:27,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:27,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:27,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 22:41:27,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1886826311] [2020-09-24 22:41:27,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:27,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 22:41:27,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749449591] [2020-09-24 22:41:27,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 22:41:27,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:27,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 22:41:27,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:41:27,745 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 7 states. [2020-09-24 22:41:27,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:27,852 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-09-24 22:41:27,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 22:41:27,853 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-24 22:41:27,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:27,855 INFO L225 Difference]: With dead ends: 31 [2020-09-24 22:41:27,855 INFO L226 Difference]: Without dead ends: 26 [2020-09-24 22:41:27,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:41:27,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-24 22:41:27,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-24 22:41:27,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-24 22:41:27,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-24 22:41:27,871 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 23 [2020-09-24 22:41:27,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:27,872 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-24 22:41:27,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 22:41:27,872 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-24 22:41:27,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 22:41:27,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:27,876 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:41:27,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:41:27,876 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:27,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:27,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1416732684, now seen corresponding path program 2 times [2020-09-24 22:41:27,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:27,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546710561] [2020-09-24 22:41:27,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:27,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:28,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:28,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 22:41:28,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:28,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-24 22:41:28,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:28,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 22:41:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 22:41:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 22:41:28,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:28,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:28,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:28,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:28,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:28,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:28,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:41:28,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:28,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:28,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:28,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:28,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:28,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:28,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:28,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:28,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:28,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:28,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 22:41:28,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:28,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:28,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:28,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:28,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:28,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:28,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:28,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:28,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:28,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:28,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 22:41:28,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:28,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:28,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:28,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:28,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:28,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:28,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:28,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:28,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:28,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:28,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 22:41:28,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:28,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:28,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:28,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:28,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:28,454 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 22:41:28,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546710561] [2020-09-24 22:41:28,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:28,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 22:41:28,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199984746] [2020-09-24 22:41:28,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:41:28,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:28,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:41:28,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:41:28,457 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2020-09-24 22:41:28,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:28,554 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-09-24 22:41:28,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 22:41:28,555 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-09-24 22:41:28,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:28,557 INFO L225 Difference]: With dead ends: 35 [2020-09-24 22:41:28,557 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 22:41:28,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-24 22:41:28,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 22:41:28,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-24 22:41:28,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-24 22:41:28,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-24 22:41:28,564 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 30 [2020-09-24 22:41:28,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:28,565 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-24 22:41:28,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:41:28,565 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-24 22:41:28,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-24 22:41:28,567 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:28,567 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:41:28,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:41:28,568 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:28,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:28,568 INFO L82 PathProgramCache]: Analyzing trace with hash -209476043, now seen corresponding path program 3 times [2020-09-24 22:41:28,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:28,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1337044942] [2020-09-24 22:41:28,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:28,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:28,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:28,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 22:41:28,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:28,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-24 22:41:28,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:28,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 22:41:28,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 22:41:28,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 22:41:28,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:28,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:28,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:28,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:28,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:28,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:28,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:41:28,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:28,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:28,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:28,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:28,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:28,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:28,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:29,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:29,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:41:29,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:29,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-09-24 22:41:29,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:29,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:41:29,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:29,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:41:29,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:29,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:29,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:29,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:29,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:29,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:29,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 22:41:29,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:29,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:29,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:41:29,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:29,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:29,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:29,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:29,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:29,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 22:41:29,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:29,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:29,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:29,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:29,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:29,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:29,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:29,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:29,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:29,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:29,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 22:41:29,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:29,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:29,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:29,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:29,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:29,426 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 22:41:29,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1337044942] [2020-09-24 22:41:29,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:29,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 22:41:29,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266390990] [2020-09-24 22:41:29,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 22:41:29,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:29,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 22:41:29,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-24 22:41:29,433 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 11 states. [2020-09-24 22:41:29,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:29,602 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-24 22:41:29,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 22:41:29,603 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-09-24 22:41:29,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:29,606 INFO L225 Difference]: With dead ends: 39 [2020-09-24 22:41:29,606 INFO L226 Difference]: Without dead ends: 34 [2020-09-24 22:41:29,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:41:29,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-24 22:41:29,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-09-24 22:41:29,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-24 22:41:29,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-09-24 22:41:29,629 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 37 [2020-09-24 22:41:29,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:29,630 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-09-24 22:41:29,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 22:41:29,632 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-09-24 22:41:29,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-24 22:41:29,633 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:29,634 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:41:29,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:41:29,634 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:29,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:29,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1007399302, now seen corresponding path program 4 times [2020-09-24 22:41:29,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:29,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1377024465] [2020-09-24 22:41:29,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:29,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:30,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:30,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 22:41:30,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:30,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-09-24 22:41:30,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:30,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 22:41:30,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-24 22:41:30,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:41:30,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:30,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:30,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:30,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:30,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:30,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:30,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:41:30,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:30,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:30,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:30,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:30,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:30,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:30,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:30,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:30,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:41:30,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:30,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-24 22:41:30,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:30,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:41:30,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:30,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:30,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:30,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:30,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:30,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:30,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:41:30,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:30,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-09-24 22:41:30,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:30,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:41:30,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:30,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:41:30,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:30,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:30,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:30,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:30,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:30,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:30,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 22:41:30,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:30,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:30,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:30,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:30,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:30,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:30,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:30,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:30,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:30,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:30,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 22:41:30,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:30,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:30,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:30,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:30,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:30,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:30,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:30,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:30,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:30,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:30,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 22:41:30,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:30,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:30,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:30,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:30,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:30,979 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-24 22:41:30,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1377024465] [2020-09-24 22:41:30,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:30,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 22:41:30,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620984760] [2020-09-24 22:41:30,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 22:41:30,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:30,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 22:41:30,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:41:30,983 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 13 states. [2020-09-24 22:41:31,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:31,250 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-09-24 22:41:31,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 22:41:31,252 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-09-24 22:41:31,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:31,254 INFO L225 Difference]: With dead ends: 43 [2020-09-24 22:41:31,254 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 22:41:31,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-09-24 22:41:31,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 22:41:31,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-24 22:41:31,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-24 22:41:31,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-24 22:41:31,276 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 44 [2020-09-24 22:41:31,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:31,277 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-24 22:41:31,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 22:41:31,278 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-24 22:41:31,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 22:41:31,284 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:31,284 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:41:31,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:41:31,288 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:31,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:31,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1787659065, now seen corresponding path program 5 times [2020-09-24 22:41:31,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:31,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604546862] [2020-09-24 22:41:31,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:31,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:31,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:31,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 22:41:31,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:31,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400 [2020-09-24 22:41:31,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:31,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 22:41:31,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-24 22:41:31,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 22:41:31,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 22:41:31,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:31,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:31,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:31,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:31,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:31,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:41:31,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:31,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:31,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:31,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:31,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:31,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:31,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:32,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:32,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 22:41:32,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:32,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-09-24 22:41:32,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:32,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:41:32,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:32,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:41:32,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:32,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:32,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:32,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:32,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:41:32,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:32,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-24 22:41:32,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:32,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:41:32,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:32,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:32,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:32,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:32,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:32,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:32,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:41:32,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:32,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-24 22:41:32,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:32,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:41:32,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:32,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:41:32,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:32,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:32,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:32,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:32,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:32,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:32,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-24 22:41:32,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:32,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:32,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:32,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:32,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:32,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:32,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:32,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:32,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:32,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:32,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 22:41:32,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:32,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:32,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:32,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:32,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:32,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:32,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:32,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:32,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:32,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:32,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 22:41:32,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:32,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:32,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:32,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:32,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:32,980 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-24 22:41:32,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604546862] [2020-09-24 22:41:32,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:32,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 22:41:32,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152351801] [2020-09-24 22:41:32,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 22:41:32,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:32,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 22:41:32,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:41:32,985 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 15 states. [2020-09-24 22:41:33,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:33,257 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-24 22:41:33,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 22:41:33,258 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2020-09-24 22:41:33,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:33,259 INFO L225 Difference]: With dead ends: 47 [2020-09-24 22:41:33,259 INFO L226 Difference]: Without dead ends: 42 [2020-09-24 22:41:33,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2020-09-24 22:41:33,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-24 22:41:33,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-24 22:41:33,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 22:41:33,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-09-24 22:41:33,274 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 51 [2020-09-24 22:41:33,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:33,275 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-09-24 22:41:33,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 22:41:33,275 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-09-24 22:41:33,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-24 22:41:33,279 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:33,279 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:41:33,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 22:41:33,280 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:33,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:33,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1360883432, now seen corresponding path program 6 times [2020-09-24 22:41:33,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:33,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2105232147] [2020-09-24 22:41:33,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:33,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:33,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:33,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 22:41:33,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:33,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-09-24 22:41:33,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:33,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 22:41:33,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-24 22:41:33,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 22:41:33,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:33,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:33,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:33,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:33,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:33,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:33,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:41:33,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:33,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:33,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:33,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:33,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:33,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:33,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:34,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:34,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:41:34,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:34,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 430 [2020-09-24 22:41:34,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:34,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 22:41:34,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:34,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 22:41:34,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:34,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:34,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:34,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:34,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 22:41:34,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:34,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-09-24 22:41:34,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:34,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:41:34,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:34,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:41:34,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:34,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:34,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:34,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:34,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:41:34,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:34,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-24 22:41:34,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:34,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:41:34,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:34,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:34,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:35,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:35,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:35,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:35,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:41:35,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:35,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 22:41:35,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:35,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:41:35,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:35,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:41:35,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:35,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:35,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:35,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:35,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:35,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:35,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 22:41:35,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:35,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:35,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:35,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:35,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:35,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:35,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:35,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:35,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:35,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:35,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 22:41:35,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:35,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:35,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:35,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:35,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:35,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:35,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:35,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:35,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:35,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:35,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:35,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 22:41:35,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:35,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:35,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:35,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:35,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:35,553 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-09-24 22:41:35,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2105232147] [2020-09-24 22:41:35,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:35,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 22:41:35,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932745725] [2020-09-24 22:41:35,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 22:41:35,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:35,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 22:41:35,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:41:35,560 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 17 states. [2020-09-24 22:41:35,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:35,882 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-24 22:41:35,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 22:41:35,882 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2020-09-24 22:41:35,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:35,884 INFO L225 Difference]: With dead ends: 51 [2020-09-24 22:41:35,884 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 22:41:35,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2020-09-24 22:41:35,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 22:41:35,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-24 22:41:35,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-24 22:41:35,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-09-24 22:41:35,900 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 58 [2020-09-24 22:41:35,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:35,903 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-09-24 22:41:35,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 22:41:35,903 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-09-24 22:41:35,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-24 22:41:35,907 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:35,909 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:41:35,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 22:41:35,909 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:35,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:35,910 INFO L82 PathProgramCache]: Analyzing trace with hash -807968423, now seen corresponding path program 7 times [2020-09-24 22:41:35,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:35,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345197470] [2020-09-24 22:41:35,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:35,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:35,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:36,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:36,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-24 22:41:36,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:36,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 614 [2020-09-24 22:41:36,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:36,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 22:41:36,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-24 22:41:36,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 22:41:36,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:36,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:36,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:36,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:36,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:36,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:36,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:41:36,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:36,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:36,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:36,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:36,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:36,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:36,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:37,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:37,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 22:41:37,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:37,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-09-24 22:41:37,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:37,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 22:41:37,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:37,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 22:41:37,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:37,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:37,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:37,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:37,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:41:37,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:37,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-09-24 22:41:37,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:37,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 22:41:37,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:37,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 22:41:37,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:37,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:37,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:37,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:37,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 22:41:37,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:37,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-09-24 22:41:37,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:37,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:41:37,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:37,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:41:37,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:37,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:37,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:38,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:38,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:41:38,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:38,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-09-24 22:41:38,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:38,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:41:38,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:38,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:38,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:38,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:38,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:38,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:38,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:41:38,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:38,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 22:41:38,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:38,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:41:38,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:38,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:41:38,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:38,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:38,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:38,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:38,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:38,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:38,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 22:41:38,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:38,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:38,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:38,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:38,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:38,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:38,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:38,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:38,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:38,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:38,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 22:41:38,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:38,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:38,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:38,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:38,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:38,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:38,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:38,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:38,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:38,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:38,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 22:41:38,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:38,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:38,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:38,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:38,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:38,694 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-09-24 22:41:38,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345197470] [2020-09-24 22:41:38,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:38,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 22:41:38,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400976042] [2020-09-24 22:41:38,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 22:41:38,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:38,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 22:41:38,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-09-24 22:41:38,697 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 19 states. [2020-09-24 22:41:39,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:39,032 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-09-24 22:41:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-24 22:41:39,033 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 65 [2020-09-24 22:41:39,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:39,034 INFO L225 Difference]: With dead ends: 55 [2020-09-24 22:41:39,034 INFO L226 Difference]: Without dead ends: 50 [2020-09-24 22:41:39,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2020-09-24 22:41:39,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-24 22:41:39,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-24 22:41:39,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-24 22:41:39,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-24 22:41:39,047 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 65 [2020-09-24 22:41:39,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:39,048 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-24 22:41:39,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 22:41:39,048 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-24 22:41:39,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 22:41:39,050 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:39,050 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:41:39,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 22:41:39,050 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:39,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:39,053 INFO L82 PathProgramCache]: Analyzing trace with hash -705364310, now seen corresponding path program 8 times [2020-09-24 22:41:39,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:39,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [214908433] [2020-09-24 22:41:39,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:39,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:39,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:39,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-24 22:41:39,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:39,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 722 [2020-09-24 22:41:39,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:39,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 22:41:39,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-24 22:41:39,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 22:41:39,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:39,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:39,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:39,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:39,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:39,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:39,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:41:39,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:39,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:39,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:39,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:39,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:39,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:39,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:40,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:40,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 22:41:40,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:40,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 618 [2020-09-24 22:41:40,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:40,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 22:41:40,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:40,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 22:41:40,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:40,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:40,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:40,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:40,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 22:41:40,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:40,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 454 [2020-09-24 22:41:40,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:40,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 22:41:40,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:40,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 22:41:40,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:41,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:41,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:41,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:41,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:41:41,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:41,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-09-24 22:41:41,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:41,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 22:41:41,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:41,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 22:41:41,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:41,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:41,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:41,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:41,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 22:41:41,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:41,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-24 22:41:41,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:41,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:41:41,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:41,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:41:41,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:41:41,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:41,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:41,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:41,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:41:41,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:41,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-24 22:41:41,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:41,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:41:41,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:41,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:41,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:42,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:42,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:42,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:42,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:41:42,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:42,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 22:41:42,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:42,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:41:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:41:42,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:42,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:42,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:42,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:42,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:42,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:42,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 22:41:42,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:42,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:42,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:42,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:42,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:42,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:42,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:42,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:42,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:42,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:42,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 22:41:42,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:42,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:42,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:42,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:42,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:42,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:42,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:42,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:42,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:42,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:42,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 22:41:42,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:42,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:42,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:42,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:42,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:42,465 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-24 22:41:42,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [214908433] [2020-09-24 22:41:42,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:42,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-24 22:41:42,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426867537] [2020-09-24 22:41:42,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-24 22:41:42,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:42,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-24 22:41:42,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-09-24 22:41:42,475 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 21 states. [2020-09-24 22:41:42,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:42,911 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-24 22:41:42,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-24 22:41:42,912 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-09-24 22:41:42,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:42,914 INFO L225 Difference]: With dead ends: 59 [2020-09-24 22:41:42,914 INFO L226 Difference]: Without dead ends: 54 [2020-09-24 22:41:42,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2020-09-24 22:41:42,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-24 22:41:42,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-24 22:41:42,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 22:41:42,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-09-24 22:41:42,926 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 72 [2020-09-24 22:41:42,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:42,926 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-09-24 22:41:42,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-24 22:41:42,926 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-09-24 22:41:42,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-24 22:41:42,929 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:42,929 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:41:42,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 22:41:42,931 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:42,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:42,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1418439701, now seen corresponding path program 9 times [2020-09-24 22:41:42,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:42,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735013556] [2020-09-24 22:41:42,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:42,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:43,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:43,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-24 22:41:43,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:43,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 908 [2020-09-24 22:41:43,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:43,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 22:41:43,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-24 22:41:43,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:43,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:43,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:43,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:43,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:43,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:43,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:43,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:41:43,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:43,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:43,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:43,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:43,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:43,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:43,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:44,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:44,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 22:41:44,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:44,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 722 [2020-09-24 22:41:44,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:44,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 22:41:44,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:44,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 22:41:44,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:44,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:44,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:45,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:45,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 22:41:45,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:45,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 586 [2020-09-24 22:41:45,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:45,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 22:41:45,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:45,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 22:41:45,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:45,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:45,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:45,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:45,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 22:41:45,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:45,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 469 [2020-09-24 22:41:45,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:45,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 22:41:45,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:45,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 22:41:45,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:45,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:45,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:46,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:46,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:41:46,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:46,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-09-24 22:41:46,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:46,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 22:41:46,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:46,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 22:41:46,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:46,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:46,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:46,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:46,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 22:41:46,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:46,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-24 22:41:46,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:46,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:41:46,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:46,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:41:46,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:46,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:46,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:46,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:46,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:41:46,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:46,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-24 22:41:46,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:46,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:41:46,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:46,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:46,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:46,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:46,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:46,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:46,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:41:46,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:46,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 22:41:46,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:46,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:41:46,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:46,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:41:46,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:46,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:46,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:46,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:46,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:46,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:46,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 22:41:46,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:46,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:46,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:46,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:46,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:47,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:47,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:47,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:47,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:47,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:47,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 22:41:47,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:47,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:47,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:47,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:47,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:47,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:47,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:47,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 22:41:47,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:47,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:47,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:47,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:47,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:47,237 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-09-24 22:41:47,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [735013556] [2020-09-24 22:41:47,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:47,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-24 22:41:47,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853465424] [2020-09-24 22:41:47,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-24 22:41:47,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:47,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-24 22:41:47,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-09-24 22:41:47,240 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 23 states. [2020-09-24 22:41:47,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:47,811 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2020-09-24 22:41:47,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-24 22:41:47,813 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 79 [2020-09-24 22:41:47,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:47,815 INFO L225 Difference]: With dead ends: 63 [2020-09-24 22:41:47,815 INFO L226 Difference]: Without dead ends: 58 [2020-09-24 22:41:47,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=973, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 22:41:47,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-24 22:41:47,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-24 22:41:47,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-24 22:41:47,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-24 22:41:47,822 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 79 [2020-09-24 22:41:47,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:47,822 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-24 22:41:47,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-24 22:41:47,822 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-24 22:41:47,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 22:41:47,823 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:47,823 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:41:47,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 22:41:47,824 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:47,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:47,824 INFO L82 PathProgramCache]: Analyzing trace with hash -182126020, now seen corresponding path program 10 times [2020-09-24 22:41:47,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:47,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518822959] [2020-09-24 22:41:47,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:47,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:48,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:48,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-24 22:41:48,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:48,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 884 [2020-09-24 22:41:48,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:48,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 22:41:48,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-24 22:41:48,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 22:41:48,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:48,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:48,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:48,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:48,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:48,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:48,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:41:48,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:48,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:48,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:48,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:48,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:48,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:48,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:49,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:49,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 22:41:49,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:49,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 985 [2020-09-24 22:41:49,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:49,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 22:41:49,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:49,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 22:41:49,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:49,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:49,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:50,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:50,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 22:41:50,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:50,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 718 [2020-09-24 22:41:50,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:50,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 22:41:50,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:50,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 22:41:50,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:50,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:50,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:51,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:51,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 22:41:51,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:51,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 499 [2020-09-24 22:41:51,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:51,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 22:41:51,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:51,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 22:41:51,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:51,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:51,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:51,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:51,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 22:41:51,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:51,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-09-24 22:41:51,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:51,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 22:41:51,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:51,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 22:41:51,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:51,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:51,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:51,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:51,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:41:51,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:51,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-09-24 22:41:51,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:51,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 22:41:51,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:51,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 22:41:51,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:51,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:51,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:52,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:52,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 22:41:52,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:52,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-09-24 22:41:52,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:41:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:41:52,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:52,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:52,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:52,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:52,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:41:52,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:52,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 22:41:52,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:52,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:41:52,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:52,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:52,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:52,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:52,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:52,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:52,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:41:52,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:52,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 22:41:52,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:41:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:52,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:41:52,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:52,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:52,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:52,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:52,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:52,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:52,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 22:41:52,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:52,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:52,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:52,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:52,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:52,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:52,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:52,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:52,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:52,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:52,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 22:41:52,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:52,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:52,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:52,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:52,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:52,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:52,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:52,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:52,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:52,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:52,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:41:52,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:52,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:52,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:52,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:52,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:52,873 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-09-24 22:41:52,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518822959] [2020-09-24 22:41:52,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:52,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-24 22:41:52,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640254081] [2020-09-24 22:41:52,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-24 22:41:52,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:52,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-24 22:41:52,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-09-24 22:41:52,876 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 25 states. [2020-09-24 22:41:53,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:53,575 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-24 22:41:53,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-24 22:41:53,575 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2020-09-24 22:41:53,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:53,577 INFO L225 Difference]: With dead ends: 67 [2020-09-24 22:41:53,577 INFO L226 Difference]: Without dead ends: 62 [2020-09-24 22:41:53,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=91, Invalid=1169, Unknown=0, NotChecked=0, Total=1260 [2020-09-24 22:41:53,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-24 22:41:53,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-09-24 22:41:53,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-24 22:41:53,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-09-24 22:41:53,585 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 86 [2020-09-24 22:41:53,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:53,585 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-09-24 22:41:53,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-24 22:41:53,585 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-09-24 22:41:53,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-24 22:41:53,586 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:53,586 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:41:53,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 22:41:53,587 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:53,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:53,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1527469181, now seen corresponding path program 11 times [2020-09-24 22:41:53,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:53,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652346376] [2020-09-24 22:41:53,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:53,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:54,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:54,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-24 22:41:54,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:54,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1126 [2020-09-24 22:41:54,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:54,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 22:41:54,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-24 22:41:54,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 22:41:54,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:54,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:54,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:54,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:54,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:54,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:54,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:41:54,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:54,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:54,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:54,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:54,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:54,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:54,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:55,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:55,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 22:41:55,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:55,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 915 [2020-09-24 22:41:55,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:55,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 22:41:55,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:55,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 22:41:55,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:55,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:55,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:56,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:56,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 22:41:56,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:56,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 749 [2020-09-24 22:41:56,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:56,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 22:41:56,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:56,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 22:41:56,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:56,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:56,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:57,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:57,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 22:41:57,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:57,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 575 [2020-09-24 22:41:57,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:57,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 22:41:57,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:57,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 22:41:57,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:57,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:57,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:57,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:57,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 22:41:57,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:57,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 449 [2020-09-24 22:41:57,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:57,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 22:41:57,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:57,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 22:41:57,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:57,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:57,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:58,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:58,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 22:41:58,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:58,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-09-24 22:41:58,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:58,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 22:41:58,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:58,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 22:41:58,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:58,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:58,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:58,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:58,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:41:58,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:58,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-09-24 22:41:58,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:58,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 22:41:58,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:58,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 22:41:58,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:58,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:58,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:58,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:58,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 22:41:58,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:58,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-24 22:41:58,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:58,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:41:58,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:58,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:41:58,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:58,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:58,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:58,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:58,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:41:58,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:58,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 22:41:58,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:58,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:41:58,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:58,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:58,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:58,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:59,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:59,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:59,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:41:59,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:59,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 22:41:59,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:59,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:41:59,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:59,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:41:59,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:59,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:59,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:59,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:59,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:59,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:59,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 22:41:59,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:59,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:59,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:59,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:59,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:59,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:59,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:59,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:59,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:59,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:59,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 22:41:59,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:59,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:59,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:59,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:59,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:59,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:59,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:59,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:59,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:59,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:59,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:41:59,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:59,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:59,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:59,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:59,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:59,505 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-09-24 22:41:59,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652346376] [2020-09-24 22:41:59,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:59,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-24 22:41:59,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676570754] [2020-09-24 22:41:59,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-24 22:41:59,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:59,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-24 22:41:59,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-09-24 22:41:59,507 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 27 states. [2020-09-24 22:42:00,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:00,343 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-24 22:42:00,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-24 22:42:00,344 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 93 [2020-09-24 22:42:00,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:00,345 INFO L225 Difference]: With dead ends: 71 [2020-09-24 22:42:00,345 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 22:42:00,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=1383, Unknown=0, NotChecked=0, Total=1482 [2020-09-24 22:42:00,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 22:42:00,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-24 22:42:00,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-24 22:42:00,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-24 22:42:00,359 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 93 [2020-09-24 22:42:00,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:00,360 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-24 22:42:00,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-24 22:42:00,360 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-24 22:42:00,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-09-24 22:42:00,361 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:00,361 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:42:00,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 22:42:00,362 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:00,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:00,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1034648626, now seen corresponding path program 12 times [2020-09-24 22:42:00,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:00,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510917699] [2020-09-24 22:42:00,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:00,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:01,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:01,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 22:42:01,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:01,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1273 [2020-09-24 22:42:01,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:01,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 22:42:01,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 22:42:01,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 22:42:01,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:01,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:01,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:01,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:01,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:42:01,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:01,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:42:01,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:01,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:01,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:01,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:01,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:01,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:42:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:01,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:02,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:02,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 22:42:02,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:02,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1060 [2020-09-24 22:42:02,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:02,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 22:42:02,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:02,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 22:42:02,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:02,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:02,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:03,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:03,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 22:42:03,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:03,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-09-24 22:42:03,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 22:42:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 22:42:03,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:03,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:03,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:04,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:04,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 22:42:04,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:04,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 742 [2020-09-24 22:42:04,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:04,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 22:42:04,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:04,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 22:42:04,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:04,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:04,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:05,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:05,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 22:42:05,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:05,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 713 [2020-09-24 22:42:05,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 22:42:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 22:42:05,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:05,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:05,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:05,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:05,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 22:42:05,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:05,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 467 [2020-09-24 22:42:05,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:05,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 22:42:05,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:05,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 22:42:05,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:06,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:06,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:06,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:06,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 22:42:06,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:06,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 513 [2020-09-24 22:42:06,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:06,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 22:42:06,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:06,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 22:42:06,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:06,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:06,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:06,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:06,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:42:06,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:06,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 357 [2020-09-24 22:42:06,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:06,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 22:42:06,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:06,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 22:42:07,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:07,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:07,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:07,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:07,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 22:42:07,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:07,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-24 22:42:07,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:07,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:42:07,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:07,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:42:07,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:07,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:07,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:07,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:07,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:42:07,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:07,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-24 22:42:07,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:07,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:42:07,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:07,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:42:07,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:07,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:07,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:07,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:07,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:42:07,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:07,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 22:42:07,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:07,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:42:07,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:07,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:42:07,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:07,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:07,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:07,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:07,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:42:07,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:07,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 22:42:07,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:07,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:42:07,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:07,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:42:07,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:07,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:07,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:07,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:07,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:42:07,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:07,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 22:42:07,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:07,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:42:07,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:07,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:42:07,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:07,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:07,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:08,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:08,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:42:08,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:08,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:42:08,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:08,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:42:08,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:08,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:42:08,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:08,105 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-09-24 22:42:08,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510917699] [2020-09-24 22:42:08,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:42:08,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-09-24 22:42:08,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686686849] [2020-09-24 22:42:08,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-24 22:42:08,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:08,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-24 22:42:08,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-09-24 22:42:08,108 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 29 states. [2020-09-24 22:42:09,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:09,132 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2020-09-24 22:42:09,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-24 22:42:09,133 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 100 [2020-09-24 22:42:09,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:09,134 INFO L225 Difference]: With dead ends: 75 [2020-09-24 22:42:09,135 INFO L226 Difference]: Without dead ends: 70 [2020-09-24 22:42:09,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=107, Invalid=1615, Unknown=0, NotChecked=0, Total=1722 [2020-09-24 22:42:09,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-24 22:42:09,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-24 22:42:09,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-24 22:42:09,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-24 22:42:09,157 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 100 [2020-09-24 22:42:09,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:09,158 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-24 22:42:09,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-24 22:42:09,158 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-24 22:42:09,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-24 22:42:09,162 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:09,162 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:42:09,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 22:42:09,163 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:09,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:09,163 INFO L82 PathProgramCache]: Analyzing trace with hash 996041487, now seen corresponding path program 13 times [2020-09-24 22:42:09,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:09,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1739245419] [2020-09-24 22:42:09,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:09,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:10,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:10,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-24 22:42:10,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:10,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1705 [2020-09-24 22:42:10,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:10,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 22:42:10,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 22:42:10,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 22:42:10,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:10,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:10,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:10,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:10,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:42:10,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:10,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:42:10,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:10,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:10,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:10,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:10,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:10,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:42:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:10,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:12,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:12,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 22:42:12,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:12,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1307 [2020-09-24 22:42:12,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:12,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 22:42:12,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:12,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 22:42:12,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:12,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:12,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:13,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:13,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 22:42:13,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:13,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1113 [2020-09-24 22:42:13,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:13,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 22:42:13,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:13,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 22:42:13,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:13,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:13,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:14,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:14,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 22:42:14,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:14,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1113 [2020-09-24 22:42:14,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:14,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 22:42:14,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:14,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 22:42:14,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:14,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:14,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:14,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:15,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:15,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 22:42:15,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:15,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 756 [2020-09-24 22:42:15,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:15,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 22:42:15,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:15,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 22:42:15,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:15,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:15,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:16,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:16,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 22:42:16,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:16,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 603 [2020-09-24 22:42:16,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:16,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 22:42:16,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:16,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 22:42:16,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:16,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:16,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:16,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:16,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 22:42:16,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:16,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 472 [2020-09-24 22:42:16,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:16,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 22:42:16,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:16,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 22:42:16,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:16,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:16,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:17,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:17,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 22:42:17,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:17,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 368 [2020-09-24 22:42:17,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:17,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 22:42:17,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:17,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 22:42:17,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:17,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:17,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:17,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:17,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:42:17,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:17,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-09-24 22:42:17,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:17,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 22:42:17,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:17,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 22:42:17,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:17,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:17,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:17,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:17,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 22:42:17,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:17,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-24 22:42:17,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:17,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:42:17,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:17,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:42:17,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:17,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:17,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:17,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:17,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:42:17,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:17,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 22:42:17,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:17,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:42:17,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:17,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:42:17,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:18,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:18,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:18,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:18,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:42:18,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:18,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-24 22:42:18,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:18,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:42:18,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:18,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:42:18,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:18,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:18,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:18,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:18,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:42:18,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:18,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 22:42:18,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:18,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:42:18,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:18,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:42:18,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:42:18,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:18,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:18,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:18,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:42:18,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:18,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 22:42:18,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:18,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:42:18,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:18,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:42:18,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:18,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:18,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:18,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:18,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:42:18,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:18,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:42:18,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:18,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:42:18,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:18,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:42:18,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1