/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=DEEPEST --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/Ackermann03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:51:46,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:51:46,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:51:46,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:51:46,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:51:46,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:51:46,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:51:46,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:51:46,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:51:46,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:51:46,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:51:46,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:51:46,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:51:46,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:51:46,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:51:46,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:51:46,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:51:46,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:51:46,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:51:46,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:51:46,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:51:46,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:51:46,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:51:46,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:51:46,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:51:46,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:51:46,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:51:46,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:51:46,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:51:46,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:51:46,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:51:46,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:51:46,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:51:46,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:51:46,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:51:46,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:51:46,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:51:46,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:51:46,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:51:46,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:51:46,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:51:46,912 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 [2020-09-25 00:51:46,939 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:51:46,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:51:46,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:51:46,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:51:46,941 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:51:46,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:51:46,941 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:51:46,941 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:51:46,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:51:46,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:51:46,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:51:46,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:51:46,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:51:46,942 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:51:46,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:51:46,943 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:51:46,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:51:46,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:51:46,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:51:46,944 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:51:46,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:51:46,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:51:46,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:51:46,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:51:46,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:51:46,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:51:46,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:51:46,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:51:46,945 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:51:46,946 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:51:47,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:51:47,445 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:51:47,450 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:51:47,454 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:51:47,456 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:51:47,457 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Ackermann03.c [2020-09-25 00:51:47,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bc8227f1/465e39d28822435b9a72a496aff3442a/FLAG608b0c2e0 [2020-09-25 00:51:48,098 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:51:48,099 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Ackermann03.c [2020-09-25 00:51:48,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bc8227f1/465e39d28822435b9a72a496aff3442a/FLAG608b0c2e0 [2020-09-25 00:51:48,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bc8227f1/465e39d28822435b9a72a496aff3442a [2020-09-25 00:51:48,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:51:48,428 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:51:48,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:51:48,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:51:48,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:51:48,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:51:48" (1/1) ... [2020-09-25 00:51:48,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df9f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:48, skipping insertion in model container [2020-09-25 00:51:48,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:51:48" (1/1) ... [2020-09-25 00:51:48,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:51:48,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:51:48,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:51:48,676 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:51:48,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:51:48,709 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:51:48,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:48 WrapperNode [2020-09-25 00:51:48,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:51:48,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:51:48,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:51:48,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:51:48,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:48" (1/1) ... [2020-09-25 00:51:48,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:48" (1/1) ... [2020-09-25 00:51:48,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:48" (1/1) ... [2020-09-25 00:51:48,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:48" (1/1) ... [2020-09-25 00:51:48,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:48" (1/1) ... [2020-09-25 00:51:48,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:48" (1/1) ... [2020-09-25 00:51:48,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:48" (1/1) ... [2020-09-25 00:51:48,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:51:48,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:51:48,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:51:48,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:51:48,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:48" (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 [2020-09-25 00:51:48,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:51:48,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:51:48,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2020-09-25 00:51:48,911 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:51:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:51:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:51:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2020-09-25 00:51:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:51:48,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:51:48,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:51:49,162 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:51:49,163 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 00:51:49,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:51:49 BoogieIcfgContainer [2020-09-25 00:51:49,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:51:49,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:51:49,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:51:49,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:51:49,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:51:48" (1/3) ... [2020-09-25 00:51:49,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a134c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:51:49, skipping insertion in model container [2020-09-25 00:51:49,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:48" (2/3) ... [2020-09-25 00:51:49,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a134c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:51:49, skipping insertion in model container [2020-09-25 00:51:49,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:51:49" (3/3) ... [2020-09-25 00:51:49,179 INFO L109 eAbstractionObserver]: Analyzing ICFG Ackermann03.c [2020-09-25 00:51:49,194 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:51:49,207 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:51:49,266 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:51:49,309 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:51:49,310 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:51:49,310 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:51:49,310 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:51:49,310 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:51:49,311 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:51:49,311 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:51:49,311 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:51:49,333 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-09-25 00:51:49,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 00:51:49,342 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:49,343 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:49,343 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:49,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:49,350 INFO L82 PathProgramCache]: Analyzing trace with hash -852610024, now seen corresponding path program 1 times [2020-09-25 00:51:49,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:49,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070588041] [2020-09-25 00:51:49,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:49,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:49,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:49,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:51:49,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:49,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-25 00:51:49,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:49,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:51:49,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 00:51:49,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 00:51:49,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:51:49,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:49,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:49,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:49,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:49,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:49,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:51:49,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:49,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:49,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:49,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:49,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:51:49,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 00:51:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:49,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:49,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:49,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:51:49,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:49,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 00:51:49,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:49,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:51:49,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:49,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:51:49,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:49,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:51:49,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070588041] [2020-09-25 00:51:49,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:51:49,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:51:49,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652388910] [2020-09-25 00:51:49,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:51:49,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:50,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:51:50,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:51:50,012 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 5 states. [2020-09-25 00:51:50,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:51:50,225 INFO L93 Difference]: Finished difference Result 88 states and 110 transitions. [2020-09-25 00:51:50,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:51:50,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-09-25 00:51:50,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:51:50,251 INFO L225 Difference]: With dead ends: 88 [2020-09-25 00:51:50,251 INFO L226 Difference]: Without dead ends: 45 [2020-09-25 00:51:50,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:51:50,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-25 00:51:50,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-25 00:51:50,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-25 00:51:50,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2020-09-25 00:51:50,358 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 24 [2020-09-25 00:51:50,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:51:50,359 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2020-09-25 00:51:50,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:51:50,360 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2020-09-25 00:51:50,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 00:51:50,367 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:50,367 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:50,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:51:50,369 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:50,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:50,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1574290279, now seen corresponding path program 1 times [2020-09-25 00:51:50,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:50,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732751950] [2020-09-25 00:51:50,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:50,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:50,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:50,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:50,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 00:51:50,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:51:50,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 448 [2020-09-25 00:51:50,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:50,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:51:50,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 00:51:50,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 00:51:50,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:51:50,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:50,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:50,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:50,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:50,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:50,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:51:50,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:50,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:50,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:50,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:50,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-25 00:51:50,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 00:51:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:50,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:51,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:51,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 00:51:51,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:51,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 00:51:51,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:51,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:51:51,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:51,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 00:51:51,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:51:51,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:51:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:51,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:51,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:51,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:51:51,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:51,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 00:51:51,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:51,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:51:51,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:51,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:51:51,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:51:51,096 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 00:51:51,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732751950] [2020-09-25 00:51:51,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:51:51,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 00:51:51,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53691269] [2020-09-25 00:51:51,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:51:51,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:51,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:51:51,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:51:51,105 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand 5 states. [2020-09-25 00:51:51,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:51:51,237 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2020-09-25 00:51:51,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:51:51,239 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-09-25 00:51:51,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:51:51,242 INFO L225 Difference]: With dead ends: 83 [2020-09-25 00:51:51,242 INFO L226 Difference]: Without dead ends: 47 [2020-09-25 00:51:51,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:51:51,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-25 00:51:51,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-09-25 00:51:51,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-25 00:51:51,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2020-09-25 00:51:51,270 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 34 [2020-09-25 00:51:51,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:51:51,270 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2020-09-25 00:51:51,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:51:51,271 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2020-09-25 00:51:51,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 00:51:51,278 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:51,278 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:51,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:51:51,279 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:51,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:51,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1685750542, now seen corresponding path program 1 times [2020-09-25 00:51:51,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:51,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [627120086] [2020-09-25 00:51:51,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:51,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:51,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:51,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:54,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:54,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 00:51:54,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:51:54,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3197 [2020-09-25 00:51:54,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:54,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:51:54,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 00:51:54,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 00:51:54,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:51:54,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:54,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:54,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:54,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:54,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:54,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:51:54,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:54,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:54,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:54,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:54,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:54,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 00:51:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:54,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:54,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:54,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 00:51:54,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:54,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 00:51:54,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:51:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 00:51:54,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:51:54,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:51:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:54,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:54,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:54,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 00:51:54,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:54,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 00:51:54,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:54,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:51:54,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:54,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 00:51:54,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:54,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:51:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:54,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:54,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:54,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:51:54,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:54,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:51:54,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:54,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:51:54,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:54,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:51:54,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:54,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 00:51:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:54,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:54,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:54,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:51:54,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:54,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:51:54,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:54,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:51:54,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:54,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:51:54,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:54,858 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 00:51:54,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [627120086] [2020-09-25 00:51:54,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:51:54,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 00:51:54,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148728852] [2020-09-25 00:51:54,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:51:54,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:54,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:51:54,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:51:54,862 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand 7 states. [2020-09-25 00:51:55,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:51:55,067 INFO L93 Difference]: Finished difference Result 75 states and 97 transitions. [2020-09-25 00:51:55,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:51:55,069 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-25 00:51:55,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:51:55,073 INFO L225 Difference]: With dead ends: 75 [2020-09-25 00:51:55,073 INFO L226 Difference]: Without dead ends: 69 [2020-09-25 00:51:55,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:51:55,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-25 00:51:55,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-09-25 00:51:55,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-25 00:51:55,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 91 transitions. [2020-09-25 00:51:55,102 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 91 transitions. Word has length 53 [2020-09-25 00:51:55,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:51:55,104 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 91 transitions. [2020-09-25 00:51:55,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:51:55,104 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 91 transitions. [2020-09-25 00:51:55,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 00:51:55,120 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:55,120 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:55,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:51:55,121 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:55,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:55,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1817818703, now seen corresponding path program 2 times [2020-09-25 00:51:55,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:55,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1091975552] [2020-09-25 00:51:55,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:55,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:55,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:55,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:58,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:58,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 00:51:58,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:51:58,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3012 [2020-09-25 00:51:58,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:58,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:51:58,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 00:51:58,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 00:51:58,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:51:58,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:58,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:58,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:58,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:58,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:58,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:51:58,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:58,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:58,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:58,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:58,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:51:58,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 00:51:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:58,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:58,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:58,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 00:52:01,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:01,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3046 [2020-09-25 00:52:01,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:52:01,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:01,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 00:52:01,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:01,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 00:52:01,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:01,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 519 [2020-09-25 00:52:01,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:52:01,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:01,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 00:52:01,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:01,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 00:52:01,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:01,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 00:52:01,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:01,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:01,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 00:52:01,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:01,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:01,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:01,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 00:52:01,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:01,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:01,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:01,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:01,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 00:52:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:01,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:01,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:52:01,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:01,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:01,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:01,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:02,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-25 00:52:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:02,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:02,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:02,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:02,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:52:02,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:02,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:02,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:02,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:02,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:02,040 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 6 proven. 44 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-09-25 00:52:02,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1091975552] [2020-09-25 00:52:02,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:02,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 00:52:02,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132858439] [2020-09-25 00:52:02,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:52:02,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:02,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:52:02,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:52:02,049 INFO L87 Difference]: Start difference. First operand 69 states and 91 transitions. Second operand 7 states. [2020-09-25 00:52:02,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:02,296 INFO L93 Difference]: Finished difference Result 107 states and 159 transitions. [2020-09-25 00:52:02,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:52:02,296 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 72 [2020-09-25 00:52:02,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:02,309 INFO L225 Difference]: With dead ends: 107 [2020-09-25 00:52:02,310 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 00:52:02,313 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:52:02,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 00:52:02,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-09-25 00:52:02,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 00:52:02,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 153 transitions. [2020-09-25 00:52:02,361 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 153 transitions. Word has length 72 [2020-09-25 00:52:02,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:02,362 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 153 transitions. [2020-09-25 00:52:02,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:52:02,363 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 153 transitions. [2020-09-25 00:52:02,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 00:52:02,378 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:02,378 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 11, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:02,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:52:02,379 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:02,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:02,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1454565455, now seen corresponding path program 3 times [2020-09-25 00:52:02,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:02,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618699018] [2020-09-25 00:52:02,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:02,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:07,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-25 00:52:07,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:52:07,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 00:52:07,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:07,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:52:07,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 112 [2020-09-25 00:52:07,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:52:07,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:07,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:07,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:07,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:07,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:07,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:07,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:07,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:07,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:07,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:07,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:07,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 00:52:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:07,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:12,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:12,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 00:52:12,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:12,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 00:52:12,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:12,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:52:12,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-09-25 00:52:12,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:52:12,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:12,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:12,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:12,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:12,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:12,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:15,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:15,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:15,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:17,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:17,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 00:52:17,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 00:52:17,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 00:52:17,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:17,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:52:17,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:52:17,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 00:52:17,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:17,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:17,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:17,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:17,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 00:52:17,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:17,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-25 00:52:17,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:17,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:52:17,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 00:52:17,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:17,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:17,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:18,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 00:52:18,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:18,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-09-25 00:52:18,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:18,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:52:18,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:18,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 00:52:18,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:18,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:18,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:18,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 00:52:18,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:18,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 00:52:18,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:18,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:18,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:18,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 00:52:18,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:18,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:18,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:18,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:18,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:18,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:52:18,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:18,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:18,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:18,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:18,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:18,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 00:52:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:18,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:18,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:18,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:18,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:52:18,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:18,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:18,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:18,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:18,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:18,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 00:52:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:18,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:18,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 00:52:18,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:18,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 00:52:18,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:18,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:18,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 00:52:18,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 00:52:18,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:18,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:18,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:18,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 00:52:18,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:18,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 00:52:18,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:18,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:18,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:18,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 00:52:18,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:18,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:18,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:18,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 00:52:18,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:18,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:52:18,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:18,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:18,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:18,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:18,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:18,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:18,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:18,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:18,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:52:18,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:18,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:18,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:18,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:18,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:18,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 00:52:18,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:18,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:18,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:18,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:18,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:52:18,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:18,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:18,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:18,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:18,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:18,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-25 00:52:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:18,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:18,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 00:52:18,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:18,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 00:52:18,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:18,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:18,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 00:52:18,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 00:52:18,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:18,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:18,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:18,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 00:52:18,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:18,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 00:52:18,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:18,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:18,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:18,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 00:52:18,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:18,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:18,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:18,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 00:52:18,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:18,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:52:18,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:18,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:18,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:18,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:18,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:18,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:19,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:19,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:19,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:19,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:19,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:52:19,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:19,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:19,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:19,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:19,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:19,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 00:52:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:19,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:19,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:19,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:19,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:19,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:52:19,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:19,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:19,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:19,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:19,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:19,193 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 160 proven. 235 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2020-09-25 00:52:19,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618699018] [2020-09-25 00:52:19,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:19,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 00:52:19,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332263937] [2020-09-25 00:52:19,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 00:52:19,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:19,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 00:52:19,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:52:19,199 INFO L87 Difference]: Start difference. First operand 101 states and 153 transitions. Second operand 15 states. [2020-09-25 00:52:19,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:19,993 INFO L93 Difference]: Finished difference Result 314 states and 640 transitions. [2020-09-25 00:52:19,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 00:52:19,994 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 179 [2020-09-25 00:52:19,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:20,004 INFO L225 Difference]: With dead ends: 314 [2020-09-25 00:52:20,004 INFO L226 Difference]: Without dead ends: 226 [2020-09-25 00:52:20,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=231, Invalid=891, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 00:52:20,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-25 00:52:20,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 168. [2020-09-25 00:52:20,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-09-25 00:52:20,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 326 transitions. [2020-09-25 00:52:20,080 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 326 transitions. Word has length 179 [2020-09-25 00:52:20,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:20,082 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 326 transitions. [2020-09-25 00:52:20,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 00:52:20,082 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 326 transitions. [2020-09-25 00:52:20,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-25 00:52:20,092 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:20,092 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 12, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:20,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:52:20,093 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:20,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:20,093 INFO L82 PathProgramCache]: Analyzing trace with hash 122024464, now seen corresponding path program 4 times [2020-09-25 00:52:20,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:20,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2044787680] [2020-09-25 00:52:20,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:20,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:20,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:20,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:20,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:20,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:20,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:20,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:20,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:21,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:21,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:21,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:21,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:21,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:21,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:22,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:22,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:25,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:25,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-25 00:52:25,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 00:52:25,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 00:52:25,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:25,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:25,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-09-25 00:52:25,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:52:25,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:25,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:25,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:25,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:25,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:25,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:25,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:25,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:25,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:25,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:25,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:25,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:25,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:25,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 00:52:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:25,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:25,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:25,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:25,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:25,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:25,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:25,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:25,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:29,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:30,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-25 00:52:30,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 00:52:30,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 00:52:30,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:30,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:30,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-09-25 00:52:30,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:52:30,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:30,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:30,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:35,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-25 00:52:35,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 00:52:35,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 00:52:35,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:35,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:35,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-09-25 00:52:35,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:52:35,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:35,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:35,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:35,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 00:52:35,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:35,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 00:52:35,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:35,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:35,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:35,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:35,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:35,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:35,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:35,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 00:52:35,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:35,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:52:35,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:35,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:35,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:35,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:35,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:35,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:35,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:35,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 00:52:35,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:35,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:52:35,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:35,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:35,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:35,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:35,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:35,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:35,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:35,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:35,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:35,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:52:35,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:35,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:35,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:35,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:35,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:35,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 00:52:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:35,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:35,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:35,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:35,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:52:35,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:35,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:35,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:35,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:35,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:35,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 00:52:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:35,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:40,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:40,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 00:52:40,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:52:40,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:52:40,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:40,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:40,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 00:52:40,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:52:40,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:40,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:40,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:40,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:40,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 00:52:40,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:40,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:52:40,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:40,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:40,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:40,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:40,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:40,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:40,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:40,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:40,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:40,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:40,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:52:40,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:40,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:40,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:40,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:40,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:40,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 00:52:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:40,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:40,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:40,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 00:52:41,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:41,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 754 [2020-09-25 00:52:41,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:41,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:52:41,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:52:41,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:41,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:41,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:52:41,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:41,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:41,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:41,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 00:52:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 00:52:41,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:41,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 00:52:41,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:41,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:41,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 00:52:41,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:41,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:41,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:52:41,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:41,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:41,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:41,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 00:52:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 00:52:41,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:41,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 00:52:41,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-25 00:52:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:41,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 00:52:41,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:41,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 00:52:41,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:41,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:41,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:41,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:41,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:41,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 00:52:41,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:41,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:52:41,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:41,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:41,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:41,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 00:52:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:41,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:41,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:52:41,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:41,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:41,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:41,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:41,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 00:52:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:41,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:41,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:52:41,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:41,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:41,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:41,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 260 proven. 127 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2020-09-25 00:52:41,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2044787680] [2020-09-25 00:52:41,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:41,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 00:52:41,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226554199] [2020-09-25 00:52:41,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:52:41,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:41,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:52:41,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:52:41,448 INFO L87 Difference]: Start difference. First operand 168 states and 326 transitions. Second operand 7 states. [2020-09-25 00:52:41,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:41,550 INFO L93 Difference]: Finished difference Result 253 states and 552 transitions. [2020-09-25 00:52:41,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:52:41,550 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-09-25 00:52:41,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:41,554 INFO L225 Difference]: With dead ends: 253 [2020-09-25 00:52:41,554 INFO L226 Difference]: Without dead ends: 94 [2020-09-25 00:52:41,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:52:41,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-09-25 00:52:41,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2020-09-25 00:52:41,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-25 00:52:41,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 131 transitions. [2020-09-25 00:52:41,578 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 131 transitions. Word has length 198 [2020-09-25 00:52:41,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:41,581 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 131 transitions. [2020-09-25 00:52:41,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:52:41,581 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 131 transitions. [2020-09-25 00:52:41,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-09-25 00:52:41,584 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:41,584 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 11, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:41,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:52:41,585 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:41,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:41,585 INFO L82 PathProgramCache]: Analyzing trace with hash 2003866823, now seen corresponding path program 5 times [2020-09-25 00:52:41,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:41,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1014105119] [2020-09-25 00:52:41,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking...