/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/Fibonacci04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:51:55,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:51:55,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:51:56,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:51:56,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:51:56,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:51:56,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:51:56,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:51:56,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:51:56,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:51:56,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:51:56,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:51:56,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:51:56,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:51:56,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:51:56,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:51:56,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:51:56,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:51:56,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:51:56,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:51:56,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:51:56,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:51:56,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:51:56,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:51:56,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:51:56,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:51:56,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:51:56,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:51:56,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:51:56,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:51:56,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:51:56,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:51:56,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:51:56,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:51:56,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:51:56,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:51:56,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:51:56,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:51:56,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:51:56,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:51:56,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:51:56,086 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 00:51:56,134 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:51:56,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:51:56,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:51:56,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:51:56,138 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:51:56,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:51:56,138 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:51:56,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:51:56,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:51:56,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:51:56,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:51:56,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:51:56,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:51:56,141 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:51:56,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:51:56,142 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:51:56,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:51:56,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:51:56,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:51:56,142 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:51:56,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:51:56,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:51:56,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:51:56,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:51:56,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:51:56,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:51:56,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:51:56,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:51:56,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:51:56,145 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 00:51:56,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:51:56,639 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:51:56,643 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:51:56,645 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:51:56,646 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:51:56,647 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci04.c [2020-09-25 00:51:56,727 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0434f93e0/6688eea1a7fc44dc92bed499bb9bff86/FLAG5689c5eda [2020-09-25 00:51:57,263 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:51:57,264 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci04.c [2020-09-25 00:51:57,273 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0434f93e0/6688eea1a7fc44dc92bed499bb9bff86/FLAG5689c5eda [2020-09-25 00:51:57,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0434f93e0/6688eea1a7fc44dc92bed499bb9bff86 [2020-09-25 00:51:57,629 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:51:57,635 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:51:57,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:51:57,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:51:57,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:51:57,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:51:57" (1/1) ... [2020-09-25 00:51:57,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cbac012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57, skipping insertion in model container [2020-09-25 00:51:57,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:51:57" (1/1) ... [2020-09-25 00:51:57,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:51:57,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:51:57,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:51:57,945 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:51:57,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:51:57,992 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:51:57,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57 WrapperNode [2020-09-25 00:51:57,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:51:57,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:51:57,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:51:57,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:51:58,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57" (1/1) ... [2020-09-25 00:51:58,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57" (1/1) ... [2020-09-25 00:51:58,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57" (1/1) ... [2020-09-25 00:51:58,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57" (1/1) ... [2020-09-25 00:51:58,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57" (1/1) ... [2020-09-25 00:51:58,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57" (1/1) ... [2020-09-25 00:51:58,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57" (1/1) ... [2020-09-25 00:51:58,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:51:58,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:51:58,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:51:58,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:51:58,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57" (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 00:51:58,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:51:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:51:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-09-25 00:51:58,270 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:51:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:51:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:51:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-09-25 00:51:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:51:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:51:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:51:58,496 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:51:58,497 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 00:51:58,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:51:58 BoogieIcfgContainer [2020-09-25 00:51:58,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:51:58,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:51:58,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:51:58,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:51:58,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:51:57" (1/3) ... [2020-09-25 00:51:58,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165407de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:51:58, skipping insertion in model container [2020-09-25 00:51:58,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57" (2/3) ... [2020-09-25 00:51:58,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165407de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:51:58, skipping insertion in model container [2020-09-25 00:51:58,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:51:58" (3/3) ... [2020-09-25 00:51:58,517 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci04.c [2020-09-25 00:51:58,530 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:51:58,544 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:51:58,570 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:51:58,628 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:51:58,628 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:51:58,629 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:51:58,629 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:51:58,629 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:51:58,629 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:51:58,630 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:51:58,630 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:51:58,660 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-09-25 00:51:58,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-25 00:51:58,671 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:58,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:58,673 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:58,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:58,681 INFO L82 PathProgramCache]: Analyzing trace with hash -2064988448, now seen corresponding path program 1 times [2020-09-25 00:51:58,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:58,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980984762] [2020-09-25 00:51:58,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:58,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:58,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:58,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:51:58,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:58,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 00:51:58,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:58,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:51:58,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 00:51:58,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 00:51:58,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:51:59,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:59,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:59,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:59,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:59,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:51:59,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:59,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:59,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:59,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:59,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:59,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:51:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:59,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:59,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:51:59,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:59,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 00:51:59,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:59,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:51:59,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:59,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:51:59,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:59,107 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 00:51:59,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980984762] [2020-09-25 00:51:59,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:51:59,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:51:59,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329800125] [2020-09-25 00:51:59,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:51:59,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:59,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:51:59,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:51:59,152 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-09-25 00:51:59,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:51:59,286 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2020-09-25 00:51:59,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:51:59,288 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-25 00:51:59,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:51:59,302 INFO L225 Difference]: With dead ends: 48 [2020-09-25 00:51:59,303 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 00:51:59,308 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 00:51:59,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 00:51:59,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-25 00:51:59,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 00:51:59,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-09-25 00:51:59,359 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 18 [2020-09-25 00:51:59,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:51:59,360 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-09-25 00:51:59,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:51:59,360 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-09-25 00:51:59,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 00:51:59,363 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:59,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:59,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:51:59,364 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:59,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:59,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1678486471, now seen corresponding path program 1 times [2020-09-25 00:51:59,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:59,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048314757] [2020-09-25 00:51:59,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:59,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:59,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 00:51:59,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:59,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 00:51:59,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:59,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:51:59,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 00:51:59,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 00:51:59,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:59,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:59,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:59,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:59,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:59,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:51:59,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:59,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:59,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:59,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:59,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:59,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:51:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:59,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:59,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:51:59,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:59,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 00:51:59,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:51:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:51:59,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:59,654 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 00:51:59,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048314757] [2020-09-25 00:51:59,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:51:59,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:51:59,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184997777] [2020-09-25 00:51:59,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:51:59,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:59,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:51:59,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:51:59,660 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 5 states. [2020-09-25 00:51:59,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:51:59,777 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2020-09-25 00:51:59,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:51:59,778 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-09-25 00:51:59,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:51:59,780 INFO L225 Difference]: With dead ends: 38 [2020-09-25 00:51:59,781 INFO L226 Difference]: Without dead ends: 32 [2020-09-25 00:51:59,782 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 00:51:59,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-25 00:51:59,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-09-25 00:51:59,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 00:51:59,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-09-25 00:51:59,805 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 19 [2020-09-25 00:51:59,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:51:59,806 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-09-25 00:51:59,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:51:59,806 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-09-25 00:51:59,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 00:51:59,809 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:59,809 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:59,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:51:59,810 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:59,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:59,811 INFO L82 PathProgramCache]: Analyzing trace with hash 961212118, now seen corresponding path program 1 times [2020-09-25 00:51:59,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:59,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [990344326] [2020-09-25 00:51:59,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:59,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:00,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 00:52:00,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:00,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 554 [2020-09-25 00:52:00,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:00,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:00,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 00:52:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:00,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:52:00,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:00,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:00,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:00,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:00,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:52:00,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:00,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:00,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:00,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:00,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:00,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:52:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:00,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:00,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 00:52:00,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:00,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 00:52:00,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:00,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 00:52:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:00,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:00,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:00,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:00,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:00,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:00,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:52:00,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:00,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:00,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:00,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:00,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:00,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 00:52:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:00,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:00,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:00,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:00,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:52:00,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:00,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:00,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:52:00,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:00,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:52:00,617 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 00:52:00,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [990344326] [2020-09-25 00:52:00,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:00,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 00:52:00,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999082364] [2020-09-25 00:52:00,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:52:00,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:00,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:52:00,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:52:00,627 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 6 states. [2020-09-25 00:52:00,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:00,745 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2020-09-25 00:52:00,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:52:00,746 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-25 00:52:00,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:00,748 INFO L225 Difference]: With dead ends: 54 [2020-09-25 00:52:00,748 INFO L226 Difference]: Without dead ends: 32 [2020-09-25 00:52:00,749 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:52:00,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-25 00:52:00,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-09-25 00:52:00,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-25 00:52:00,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2020-09-25 00:52:00,758 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 35 [2020-09-25 00:52:00,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:00,759 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2020-09-25 00:52:00,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:52:00,759 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2020-09-25 00:52:00,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 00:52:00,761 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:00,761 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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 00:52:00,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:52:00,762 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:00,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:00,763 INFO L82 PathProgramCache]: Analyzing trace with hash -125795935, now seen corresponding path program 1 times [2020-09-25 00:52:00,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:00,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539785355] [2020-09-25 00:52:00,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:00,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 00:52:01,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:01,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 421 [2020-09-25 00:52:01,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:01,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 00:52:01,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 00:52:01,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:52:01,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:01,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:01,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:52:01,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:01,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:01,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:01,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:01,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:52:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:01,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:01,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 365 [2020-09-25 00:52:01,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:01,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:01,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:01,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:01,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:01,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:01,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 00:52:01,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:01,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:01,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:01,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:01,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:01,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:01,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:52:01,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:01,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:01,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:01,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:01,774 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 00:52:01,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539785355] [2020-09-25 00:52:01,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:01,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 00:52:01,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239053952] [2020-09-25 00:52:01,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:52:01,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:01,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:52:01,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:52:01,779 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 7 states. [2020-09-25 00:52:01,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:01,900 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2020-09-25 00:52:01,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:52:01,901 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-09-25 00:52:01,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:01,903 INFO L225 Difference]: With dead ends: 46 [2020-09-25 00:52:01,903 INFO L226 Difference]: Without dead ends: 40 [2020-09-25 00:52:01,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:52:01,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-25 00:52:01,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-25 00:52:01,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 00:52:01,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2020-09-25 00:52:01,914 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 36 [2020-09-25 00:52:01,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:01,915 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2020-09-25 00:52:01,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:52:01,915 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2020-09-25 00:52:01,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 00:52:01,917 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:01,918 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:01,918 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:52:01,918 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:01,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:01,919 INFO L82 PathProgramCache]: Analyzing trace with hash 331377205, now seen corresponding path program 2 times [2020-09-25 00:52:01,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:01,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1683444918] [2020-09-25 00:52:01,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:03,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:06,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:06,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 00:52:06,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 00:52:06,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4469 [2020-09-25 00:52:06,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:06,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:06,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:52:06,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 00:52:06,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:06,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:06,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:06,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:06,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:06,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:06,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:06,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:06,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:06,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:52:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:06,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:06,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:06,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:06,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:07,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 00:52:07,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:52:07,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1186 [2020-09-25 00:52:07,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:07,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:07,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:52:07,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 00:52:07,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:07,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:07,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:07,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:07,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:07,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-09-25 00:52:07,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:07,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:07,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:07,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:07,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:08,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:08,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:08,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:08,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:08,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 00:52:08,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:08,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:08,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:08,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:08,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:08,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:08,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:08,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:08,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:08,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:52:08,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:08,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:08,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:08,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:08,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:08,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:08,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:08,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:08,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:08,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:52:08,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:08,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:08,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:08,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:08,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:08,171 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 26 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 00:52:08,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1683444918] [2020-09-25 00:52:08,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:08,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 00:52:08,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427614469] [2020-09-25 00:52:08,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:52:08,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:08,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:52:08,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:52:08,176 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand 8 states. [2020-09-25 00:52:08,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:08,467 INFO L93 Difference]: Finished difference Result 80 states and 107 transitions. [2020-09-25 00:52:08,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 00:52:08,468 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-09-25 00:52:08,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:08,474 INFO L225 Difference]: With dead ends: 80 [2020-09-25 00:52:08,474 INFO L226 Difference]: Without dead ends: 48 [2020-09-25 00:52:08,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-09-25 00:52:08,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-25 00:52:08,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2020-09-25 00:52:08,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 00:52:08,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2020-09-25 00:52:08,506 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 53 [2020-09-25 00:52:08,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:08,509 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2020-09-25 00:52:08,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:52:08,510 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2020-09-25 00:52:08,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 00:52:08,518 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:08,522 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:08,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:52:08,523 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:08,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:08,524 INFO L82 PathProgramCache]: Analyzing trace with hash 4423077, now seen corresponding path program 3 times [2020-09-25 00:52:08,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:08,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875311868] [2020-09-25 00:52:08,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:08,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:09,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:09,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:13,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 00:52:13,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 00:52:13,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 00:52:13,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:52:13,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:52:13,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 00:52:13,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:52:13,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:13,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:13,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:13,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:13,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:52:13,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:13,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:13,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:13,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:13,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:13,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:52:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:13,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:14,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:14,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:14,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:14,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:17,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:18,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 00:52:18,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 00:52:18,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:52:18,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:18,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:18,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:52:18,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:52:18,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:18,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:18,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:19,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:19,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:19,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:19,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 499 [2020-09-25 00:52:19,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:19,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:19,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:19,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:19,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:19,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:19,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:19,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:19,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:19,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:19,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 00:52:19,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:19,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:19,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:19,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:19,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:19,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:19,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:19,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:19,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:19,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:19,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:52:19,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:19,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:19,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:19,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:19,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:19,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:19,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:19,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:19,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:19,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:19,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:19,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:20,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:20,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:52:20,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:52:20,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1495 [2020-09-25 00:52:20,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:20,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:20,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 00:52:20,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:20,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:20,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:20,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:20,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:20,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:20,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 00:52:20,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:20,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:20,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:20,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 00:52:20,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:20,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:20,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:20,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:20,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:20,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:20,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:52:20,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:20,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:20,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:20,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:20,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:20,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:20,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:20,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:20,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:20,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:20,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:52:20,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:20,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:20,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:20,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:20,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:20,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:20,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:20,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:20,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:20,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:20,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 00:52:20,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:20,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:20,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:20,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:20,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:20,954 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 72 proven. 67 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-09-25 00:52:20,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875311868] [2020-09-25 00:52:20,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:20,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 00:52:20,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233777762] [2020-09-25 00:52:20,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:52:20,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:20,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:52:20,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:52:20,960 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 8 states. [2020-09-25 00:52:21,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:21,152 INFO L93 Difference]: Finished difference Result 87 states and 115 transitions. [2020-09-25 00:52:21,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 00:52:21,153 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2020-09-25 00:52:21,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:21,155 INFO L225 Difference]: With dead ends: 87 [2020-09-25 00:52:21,155 INFO L226 Difference]: Without dead ends: 53 [2020-09-25 00:52:21,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-09-25 00:52:21,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-25 00:52:21,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-25 00:52:21,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 00:52:21,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2020-09-25 00:52:21,166 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 89 [2020-09-25 00:52:21,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:21,166 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2020-09-25 00:52:21,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:52:21,167 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2020-09-25 00:52:21,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-09-25 00:52:21,168 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:21,169 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:21,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:52:21,169 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:21,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:21,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1575340027, now seen corresponding path program 4 times [2020-09-25 00:52:21,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:21,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [195308895] [2020-09-25 00:52:21,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:21,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:21,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:21,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:21,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:21,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:21,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:26,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:26,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-25 00:52:26,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 00:52:26,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 00:52:26,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:26,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:52:26,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 00:52:26,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:52:26,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:26,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:26,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:26,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:26,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:26,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:26,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:26,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:26,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:26,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:26,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:26,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:26,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:52:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:26,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:26,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:26,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:26,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:26,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:26,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:28,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:29,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:29,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:31,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 00:52:31,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 00:52:31,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 00:52:31,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:31,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:52:31,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:52:31,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 00:52:31,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:31,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:31,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:36,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:52:36,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:52:36,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4778 [2020-09-25 00:52:36,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:36,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:52:36,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:36,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 00:52:36,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:36,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:36,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:36,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:36,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:36,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 465 [2020-09-25 00:52:36,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:36,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:36,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:36,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:36,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:36,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:36,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:36,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:36,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:36,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 00:52:36,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:36,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:36,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:36,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:36,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:36,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:36,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:36,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:36,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:36,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:52:36,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:36,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:36,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:36,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:36,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:36,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:36,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:36,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:36,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:36,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:52:36,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:36,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:36,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:36,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:36,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:36,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 00:52:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:36,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 00:52:41,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 00:52:41,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 00:52:41,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:41,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:52:41,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:52:41,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:44,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:52:44,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:52:44,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2910 [2020-09-25 00:52:44,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:44,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:44,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:44,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 00:52:44,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:44,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:44,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:44,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:44,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:44,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-25 00:52:44,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:44,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:44,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:44,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:44,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:44,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:44,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:44,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:44,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:44,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 00:52:44,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:44,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:44,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:44,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:44,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:44,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:44,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:44,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:44,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:44,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:52:44,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:44,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:44,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:44,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:44,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:44,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:44,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:44,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:44,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:44,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:52:44,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:44,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:44,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:44,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:44,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:44,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 00:52:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:44,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:44,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:44,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:44,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:52:44,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:44,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:44,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:44,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:44,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:45,064 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 174 proven. 174 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2020-09-25 00:52:45,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [195308895] [2020-09-25 00:52:45,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:45,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 00:52:45,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678769685] [2020-09-25 00:52:45,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 00:52:45,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:45,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 00:52:45,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:52:45,067 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand 15 states. [2020-09-25 00:52:45,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:45,486 INFO L93 Difference]: Finished difference Result 118 states and 150 transitions. [2020-09-25 00:52:45,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 00:52:45,487 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 125 [2020-09-25 00:52:45,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:45,492 INFO L225 Difference]: With dead ends: 118 [2020-09-25 00:52:45,492 INFO L226 Difference]: Without dead ends: 73 [2020-09-25 00:52:45,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2020-09-25 00:52:45,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-25 00:52:45,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 64. [2020-09-25 00:52:45,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-09-25 00:52:45,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 73 transitions. [2020-09-25 00:52:45,504 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 73 transitions. Word has length 125 [2020-09-25 00:52:45,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:45,505 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 73 transitions. [2020-09-25 00:52:45,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 00:52:45,505 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 73 transitions. [2020-09-25 00:52:45,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 00:52:45,511 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:45,511 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:45,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 00:52:45,512 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:45,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:45,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1005193447, now seen corresponding path program 5 times [2020-09-25 00:52:45,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:45,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124157430] [2020-09-25 00:52:45,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:45,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:45,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:45,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:45,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:50,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 00:52:50,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:52:50,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 00:52:50,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:50,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:50,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 00:52:50,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 00:52:50,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:50,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:50,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:50,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:50,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:50,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:50,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:50,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:50,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:50,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:50,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:50,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:52:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:50,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:51,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking...