/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 14:29:39,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 14:29:39,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 14:29:39,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 14:29:39,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 14:29:39,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 14:29:39,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 14:29:39,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 14:29:39,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 14:29:39,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 14:29:39,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 14:29:39,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 14:29:39,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 14:29:39,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 14:29:39,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 14:29:39,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 14:29:39,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 14:29:39,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 14:29:39,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 14:29:39,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 14:29:39,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 14:29:39,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 14:29:39,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 14:29:39,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 14:29:39,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 14:29:39,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 14:29:39,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 14:29:39,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 14:29:39,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 14:29:39,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 14:29:39,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 14:29:39,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 14:29:39,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 14:29:39,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 14:29:39,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 14:29:39,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 14:29:39,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 14:29:39,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 14:29:39,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 14:29:39,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 14:29:39,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 14:29:39,937 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 14:29:39,960 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 14:29:39,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 14:29:39,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 14:29:39,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 14:29:39,962 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 14:29:39,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 14:29:39,962 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 14:29:39,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 14:29:39,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 14:29:39,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 14:29:39,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 14:29:39,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 14:29:39,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 14:29:39,964 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 14:29:39,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 14:29:39,964 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 14:29:39,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 14:29:39,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 14:29:39,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 14:29:39,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 14:29:39,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 14:29:39,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 14:29:39,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 14:29:39,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 14:29:39,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 14:29:39,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 14:29:39,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 14:29:39,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 14:29:39,967 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 14:29:39,967 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 14:29:40,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 14:29:40,284 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 14:29:40,290 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 14:29:40,292 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 14:29:40,294 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 14:29:40,294 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-10-13 14:29:40,359 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90cf0b643/b34249ca99684e59b56af32d1dd998e2/FLAG4e370e8b0 [2020-10-13 14:29:40,875 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 14:29:40,875 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-10-13 14:29:40,890 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90cf0b643/b34249ca99684e59b56af32d1dd998e2/FLAG4e370e8b0 [2020-10-13 14:29:41,222 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90cf0b643/b34249ca99684e59b56af32d1dd998e2 [2020-10-13 14:29:41,233 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 14:29:41,235 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 14:29:41,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 14:29:41,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 14:29:41,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 14:29:41,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:29:41" (1/1) ... [2020-10-13 14:29:41,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243026c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:41, skipping insertion in model container [2020-10-13 14:29:41,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:29:41" (1/1) ... [2020-10-13 14:29:41,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 14:29:41,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 14:29:41,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 14:29:41,824 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 14:29:41,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 14:29:41,979 INFO L208 MainTranslator]: Completed translation [2020-10-13 14:29:41,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:41 WrapperNode [2020-10-13 14:29:41,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 14:29:41,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 14:29:41,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 14:29:41,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 14:29:41,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:41" (1/1) ... [2020-10-13 14:29:41,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:41" (1/1) ... [2020-10-13 14:29:42,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:41" (1/1) ... [2020-10-13 14:29:42,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:41" (1/1) ... [2020-10-13 14:29:42,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:41" (1/1) ... [2020-10-13 14:29:42,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:41" (1/1) ... [2020-10-13 14:29:42,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:41" (1/1) ... [2020-10-13 14:29:42,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 14:29:42,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 14:29:42,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 14:29:42,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 14:29:42,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 14:29:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 14:29:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 14:29:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 14:29:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 14:29:42,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 14:29:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 14:29:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 14:29:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-13 14:29:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 14:29:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 14:29:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 14:29:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 14:29:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 14:29:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 14:29:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 14:29:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 14:29:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 14:29:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-13 14:29:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-13 14:29:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2020-10-13 14:29:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 14:29:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 14:29:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 14:29:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 14:29:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 14:29:43,308 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 14:29:43,309 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 14:29:43,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:29:43 BoogieIcfgContainer [2020-10-13 14:29:43,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 14:29:43,323 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 14:29:43,323 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 14:29:43,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 14:29:43,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 02:29:41" (1/3) ... [2020-10-13 14:29:43,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd7fa2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:29:43, skipping insertion in model container [2020-10-13 14:29:43,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:41" (2/3) ... [2020-10-13 14:29:43,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd7fa2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:29:43, skipping insertion in model container [2020-10-13 14:29:43,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:29:43" (3/3) ... [2020-10-13 14:29:43,331 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-10-13 14:29:43,342 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 14:29:43,355 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 14:29:43,369 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 14:29:43,396 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 14:29:43,396 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 14:29:43,397 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 14:29:43,397 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 14:29:43,397 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 14:29:43,397 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 14:29:43,397 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 14:29:43,397 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 14:29:43,416 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2020-10-13 14:29:43,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-13 14:29:43,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:29:43,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:29:43,430 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:29:43,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:29:43,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1355773301, now seen corresponding path program 1 times [2020-10-13 14:29:43,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:29:43,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757401543] [2020-10-13 14:29:43,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:29:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:29:43,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:44,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:44,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:44,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:44,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:44,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:44,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:45,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:45,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:45,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:48,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:48,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:48,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:48,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:29:48,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 14:29:48,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:29:48,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-13 14:29:48,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:29:48,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:29:48,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 14:29:48,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 14:29:48,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 14:29:49,235 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 14:29:49,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:29:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:29:49,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:49,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:29:49,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:29:49,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:29:49,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 14:29:49,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:29:49,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:29:49,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:29:49,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:29:49,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:29:49,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:29:49,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [757401543] [2020-10-13 14:29:49,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:29:49,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 14:29:49,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140384902] [2020-10-13 14:29:49,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 14:29:49,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:29:49,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 14:29:49,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:29:49,333 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 4 states. [2020-10-13 14:29:49,645 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-13 14:29:50,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:29:50,814 INFO L93 Difference]: Finished difference Result 402 states and 668 transitions. [2020-10-13 14:29:50,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 14:29:50,816 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2020-10-13 14:29:50,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:29:50,832 INFO L225 Difference]: With dead ends: 402 [2020-10-13 14:29:50,833 INFO L226 Difference]: Without dead ends: 309 [2020-10-13 14:29:50,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:29:50,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-10-13 14:29:50,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 307. [2020-10-13 14:29:50,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-10-13 14:29:50,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 442 transitions. [2020-10-13 14:29:50,908 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 442 transitions. Word has length 111 [2020-10-13 14:29:50,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:29:50,908 INFO L479 AbstractCegarLoop]: Abstraction has 307 states and 442 transitions. [2020-10-13 14:29:50,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 14:29:50,909 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 442 transitions. [2020-10-13 14:29:50,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-13 14:29:50,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:29:50,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:29:50,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 14:29:50,912 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:29:50,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:29:50,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1905103645, now seen corresponding path program 1 times [2020-10-13 14:29:50,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:29:50,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114755600] [2020-10-13 14:29:50,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:29:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:29:50,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:51,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:51,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:51,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:51,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:51,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:51,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:51,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:51,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:54,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:54,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:54,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:55,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:55,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:29:55,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 14:29:55,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:29:55,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-13 14:29:55,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:29:55,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:29:55,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:29:55,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-13 14:29:55,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:29:56,281 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 14:29:56,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:29:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:29:56,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:56,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:29:56,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:29:56,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:29:56,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 14:29:56,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:29:56,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:29:56,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:29:56,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:29:56,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:29:56,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:29:56,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114755600] [2020-10-13 14:29:56,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:29:56,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:29:56,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815957856] [2020-10-13 14:29:56,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:29:56,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:29:56,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:29:56,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:29:56,371 INFO L87 Difference]: Start difference. First operand 307 states and 442 transitions. Second operand 7 states. [2020-10-13 14:29:56,679 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 14:29:58,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:29:58,144 INFO L93 Difference]: Finished difference Result 1858 states and 2888 transitions. [2020-10-13 14:29:58,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:29:58,145 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2020-10-13 14:29:58,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:29:58,163 INFO L225 Difference]: With dead ends: 1858 [2020-10-13 14:29:58,166 INFO L226 Difference]: Without dead ends: 1619 [2020-10-13 14:29:58,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:29:58,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2020-10-13 14:29:58,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 743. [2020-10-13 14:29:58,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 743 states. [2020-10-13 14:29:58,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1125 transitions. [2020-10-13 14:29:58,271 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1125 transitions. Word has length 113 [2020-10-13 14:29:58,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:29:58,275 INFO L479 AbstractCegarLoop]: Abstraction has 743 states and 1125 transitions. [2020-10-13 14:29:58,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:29:58,276 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1125 transitions. [2020-10-13 14:29:58,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-13 14:29:58,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:29:58,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:29:58,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 14:29:58,283 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:29:58,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:29:58,286 INFO L82 PathProgramCache]: Analyzing trace with hash 320833178, now seen corresponding path program 1 times [2020-10-13 14:29:58,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:29:58,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605261126] [2020-10-13 14:29:58,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:29:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:29:58,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:58,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:58,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:58,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:58,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:58,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:58,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:59,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:01,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:01,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:01,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:02,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:02,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:02,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:02,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:03,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:03,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:30:03,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 14:30:03,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-13 14:30:03,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-13 14:30:03,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:30:03,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:30:03,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 14:30:03,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 14:30:03,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:30:03,584 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 14:30:03,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:30:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:30:03,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:03,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:30:03,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:30:03,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:30:03,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 14:30:03,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:30:03,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:30:03,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:30:03,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:30:03,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:30:03,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:30:03,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605261126] [2020-10-13 14:30:03,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:30:03,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:30:03,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171998526] [2020-10-13 14:30:03,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:30:03,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:30:03,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:30:03,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:30:03,632 INFO L87 Difference]: Start difference. First operand 743 states and 1125 transitions. Second operand 7 states. [2020-10-13 14:30:03,877 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 14:30:05,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:30:05,499 INFO L93 Difference]: Finished difference Result 5043 states and 7935 transitions. [2020-10-13 14:30:05,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:30:05,500 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 114 [2020-10-13 14:30:05,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:30:05,525 INFO L225 Difference]: With dead ends: 5043 [2020-10-13 14:30:05,525 INFO L226 Difference]: Without dead ends: 4387 [2020-10-13 14:30:05,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:30:05,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4387 states. [2020-10-13 14:30:05,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4387 to 1927. [2020-10-13 14:30:05,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1927 states. [2020-10-13 14:30:05,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 2985 transitions. [2020-10-13 14:30:05,694 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 2985 transitions. Word has length 114 [2020-10-13 14:30:05,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:30:05,703 INFO L479 AbstractCegarLoop]: Abstraction has 1927 states and 2985 transitions. [2020-10-13 14:30:05,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:30:05,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 2985 transitions. [2020-10-13 14:30:05,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 14:30:05,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:30:05,712 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:30:05,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 14:30:05,713 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:30:05,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:30:05,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1848250211, now seen corresponding path program 1 times [2020-10-13 14:30:05,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:30:05,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [694450446] [2020-10-13 14:30:05,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:30:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:30:05,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:05,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:05,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:05,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:05,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:06,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:06,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:06,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:06,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:07,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:08,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:09,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:10,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:30:10,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 14:30:10,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 14:30:10,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-13 14:30:10,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:30:10,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:30:10,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-13 14:30:10,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 14:30:10,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:30:11,100 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 14:30:11,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:30:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:30:11,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:11,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:30:11,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:30:11,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:30:11,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 14:30:11,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:30:11,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:30:11,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:30:11,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:30:11,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 14:30:11,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:30:11,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [694450446] [2020-10-13 14:30:11,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:30:11,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:30:11,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687595317] [2020-10-13 14:30:11,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:30:11,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:30:11,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:30:11,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:30:11,184 INFO L87 Difference]: Start difference. First operand 1927 states and 2985 transitions. Second operand 7 states. [2020-10-13 14:30:11,479 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 14:30:13,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:30:13,879 INFO L93 Difference]: Finished difference Result 13925 states and 21981 transitions. [2020-10-13 14:30:13,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:30:13,880 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 115 [2020-10-13 14:30:13,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:30:13,942 INFO L225 Difference]: With dead ends: 13925 [2020-10-13 14:30:13,942 INFO L226 Difference]: Without dead ends: 12123 [2020-10-13 14:30:13,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:30:13,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12123 states. [2020-10-13 14:30:14,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12123 to 5119. [2020-10-13 14:30:14,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5119 states. [2020-10-13 14:30:14,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 7995 transitions. [2020-10-13 14:30:14,422 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 7995 transitions. Word has length 115 [2020-10-13 14:30:14,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:30:14,424 INFO L479 AbstractCegarLoop]: Abstraction has 5119 states and 7995 transitions. [2020-10-13 14:30:14,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:30:14,425 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 7995 transitions. [2020-10-13 14:30:14,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-13 14:30:14,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:30:14,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:30:14,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 14:30:14,433 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:30:14,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:30:14,434 INFO L82 PathProgramCache]: Analyzing trace with hash 2013880745, now seen corresponding path program 1 times [2020-10-13 14:30:14,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:30:14,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338375908] [2020-10-13 14:30:14,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:30:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:30:14,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:14,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:14,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:14,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:14,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:14,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:15,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:15,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:17,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:17,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:17,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:17,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:18,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:18,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:18,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:18,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:19,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:30:19,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-13 14:30:19,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-13 14:30:19,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 14:30:19,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:30:19,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:30:19,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 14:30:19,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 14:30:19,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:30:19,769 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 14:30:19,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:30:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:30:19,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:19,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:30:19,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:30:19,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:30:19,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 14:30:19,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:30:19,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:30:19,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:30:19,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:30:19,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:30:19,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:30:19,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338375908] [2020-10-13 14:30:19,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:30:19,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:30:19,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981697151] [2020-10-13 14:30:19,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:30:19,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:30:19,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:30:19,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:30:19,860 INFO L87 Difference]: Start difference. First operand 5119 states and 7995 transitions. Second operand 7 states. [2020-10-13 14:30:20,172 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 14:30:22,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:30:22,560 INFO L93 Difference]: Finished difference Result 32531 states and 51204 transitions. [2020-10-13 14:30:22,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:30:22,562 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-13 14:30:22,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:30:22,650 INFO L225 Difference]: With dead ends: 32531 [2020-10-13 14:30:22,651 INFO L226 Difference]: Without dead ends: 29234 [2020-10-13 14:30:22,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:30:22,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29234 states. [2020-10-13 14:30:23,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29234 to 9978. [2020-10-13 14:30:23,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9978 states. [2020-10-13 14:30:23,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9978 states to 9978 states and 15566 transitions. [2020-10-13 14:30:23,537 INFO L78 Accepts]: Start accepts. Automaton has 9978 states and 15566 transitions. Word has length 116 [2020-10-13 14:30:23,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:30:23,538 INFO L479 AbstractCegarLoop]: Abstraction has 9978 states and 15566 transitions. [2020-10-13 14:30:23,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:30:23,538 INFO L276 IsEmpty]: Start isEmpty. Operand 9978 states and 15566 transitions. [2020-10-13 14:30:23,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-13 14:30:23,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:30:23,548 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:30:23,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 14:30:23,548 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:30:23,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:30:23,549 INFO L82 PathProgramCache]: Analyzing trace with hash 727412280, now seen corresponding path program 1 times [2020-10-13 14:30:23,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:30:23,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230124229] [2020-10-13 14:30:23,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:30:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:30:23,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:23,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:23,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:23,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:23,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:23,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:23,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:24,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:26,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:26,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:26,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:26,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:26,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:26,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:26,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:26,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:26,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:27,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:28,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:30:28,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-13 14:30:28,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-13 14:30:28,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 14:30:28,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:30:28,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:30:28,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:30:28,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-13 14:30:28,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:30:28,869 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 14:30:28,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:30:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:30:28,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:28,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:30:28,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:30:28,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:30:28,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 14:30:28,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:30:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:30:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:30:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:30:28,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:30:28,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:30:28,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230124229] [2020-10-13 14:30:28,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:30:28,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:30:28,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482711827] [2020-10-13 14:30:28,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:30:28,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:30:28,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:30:28,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:30:28,921 INFO L87 Difference]: Start difference. First operand 9978 states and 15566 transitions. Second operand 7 states. [2020-10-13 14:30:29,147 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 14:30:32,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:30:32,443 INFO L93 Difference]: Finished difference Result 53282 states and 83600 transitions. [2020-10-13 14:30:32,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:30:32,444 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-13 14:30:32,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:30:32,555 INFO L225 Difference]: With dead ends: 53282 [2020-10-13 14:30:32,555 INFO L226 Difference]: Without dead ends: 47479 [2020-10-13 14:30:32,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:30:32,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47479 states. [2020-10-13 14:30:33,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47479 to 13255. [2020-10-13 14:30:33,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13255 states. [2020-10-13 14:30:33,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13255 states to 13255 states and 20580 transitions. [2020-10-13 14:30:33,654 INFO L78 Accepts]: Start accepts. Automaton has 13255 states and 20580 transitions. Word has length 116 [2020-10-13 14:30:33,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:30:33,654 INFO L479 AbstractCegarLoop]: Abstraction has 13255 states and 20580 transitions. [2020-10-13 14:30:33,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:30:33,654 INFO L276 IsEmpty]: Start isEmpty. Operand 13255 states and 20580 transitions. [2020-10-13 14:30:33,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-13 14:30:33,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:30:33,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:30:33,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 14:30:33,669 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:30:33,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:30:33,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1871416439, now seen corresponding path program 1 times [2020-10-13 14:30:33,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:30:33,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718419130] [2020-10-13 14:30:33,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:30:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:30:33,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:33,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:33,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:33,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:34,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:34,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:34,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:35,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:37,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:38,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:38,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:38,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:38,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:38,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:30:38,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-13 14:30:38,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:30:38,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 14:30:38,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:30:38,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:30:38,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 14:30:38,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 14:30:38,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:30:38,944 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 14:30:38,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:30:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:30:38,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:38,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:30:38,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:30:38,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:30:38,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 14:30:38,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:30:38,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:30:38,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:30:38,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:30:38,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:30:38,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:30:38,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718419130] [2020-10-13 14:30:38,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:30:38,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:30:38,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23581110] [2020-10-13 14:30:38,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:30:38,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:30:38,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:30:38,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:30:38,992 INFO L87 Difference]: Start difference. First operand 13255 states and 20580 transitions. Second operand 7 states. [2020-10-13 14:30:39,237 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 14:30:42,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:30:42,612 INFO L93 Difference]: Finished difference Result 51839 states and 80900 transitions. [2020-10-13 14:30:42,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:30:42,612 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-13 14:30:42,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:30:42,680 INFO L225 Difference]: With dead ends: 51839 [2020-10-13 14:30:42,680 INFO L226 Difference]: Without dead ends: 40403 [2020-10-13 14:30:42,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:30:42,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40403 states. [2020-10-13 14:30:43,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40403 to 12948. [2020-10-13 14:30:43,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12948 states. [2020-10-13 14:30:43,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12948 states to 12948 states and 20102 transitions. [2020-10-13 14:30:43,950 INFO L78 Accepts]: Start accepts. Automaton has 12948 states and 20102 transitions. Word has length 116 [2020-10-13 14:30:43,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:30:43,950 INFO L479 AbstractCegarLoop]: Abstraction has 12948 states and 20102 transitions. [2020-10-13 14:30:43,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:30:43,950 INFO L276 IsEmpty]: Start isEmpty. Operand 12948 states and 20102 transitions. [2020-10-13 14:30:43,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-13 14:30:43,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:30:43,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:30:43,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 14:30:43,963 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:30:43,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:30:43,963 INFO L82 PathProgramCache]: Analyzing trace with hash 857034426, now seen corresponding path program 1 times [2020-10-13 14:30:43,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:30:43,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2032524996] [2020-10-13 14:30:43,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:30:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:30:44,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:44,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:44,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:44,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:44,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:44,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:44,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:44,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:46,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:46,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:46,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:47,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:48,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:49,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:30:49,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-13 14:30:49,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:30:49,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 14:30:49,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:30:49,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:30:49,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 14:30:49,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 14:30:49,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:30:49,226 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 14:30:49,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:30:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:30:49,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:49,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:30:49,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:30:49,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:30:49,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 14:30:49,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:30:49,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:30:49,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:30:49,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:30:49,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:30:49,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:30:49,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2032524996] [2020-10-13 14:30:49,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:30:49,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:30:49,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828169694] [2020-10-13 14:30:49,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:30:49,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:30:49,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:30:49,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:30:49,271 INFO L87 Difference]: Start difference. First operand 12948 states and 20102 transitions. Second operand 7 states. [2020-10-13 14:30:49,511 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 14:30:54,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:30:54,604 INFO L93 Difference]: Finished difference Result 74314 states and 115975 transitions. [2020-10-13 14:30:54,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:30:54,605 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-13 14:30:54,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:30:54,691 INFO L225 Difference]: With dead ends: 74314 [2020-10-13 14:30:54,692 INFO L226 Difference]: Without dead ends: 66530 [2020-10-13 14:30:54,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:30:54,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66530 states. [2020-10-13 14:30:56,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66530 to 17268. [2020-10-13 14:30:56,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17268 states. [2020-10-13 14:30:56,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17268 states to 17268 states and 26678 transitions. [2020-10-13 14:30:56,516 INFO L78 Accepts]: Start accepts. Automaton has 17268 states and 26678 transitions. Word has length 116 [2020-10-13 14:30:56,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:30:56,516 INFO L479 AbstractCegarLoop]: Abstraction has 17268 states and 26678 transitions. [2020-10-13 14:30:56,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:30:56,516 INFO L276 IsEmpty]: Start isEmpty. Operand 17268 states and 26678 transitions. [2020-10-13 14:30:56,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-13 14:30:56,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:30:56,536 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:30:56,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 14:30:56,536 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:30:56,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:30:56,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1182197341, now seen corresponding path program 1 times [2020-10-13 14:30:56,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:30:56,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1115146768] [2020-10-13 14:30:56,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:30:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:30:56,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:56,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:56,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:56,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:56,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:57,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:57,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:57,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:57,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:01,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:31:01,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 14:31:01,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 14:31:01,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 14:31:01,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:31:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:31:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:31:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-13 14:31:01,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:31:01,846 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 14:31:01,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:31:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:31:01,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:01,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:31:01,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:31:01,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:31:01,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 14:31:01,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:31:01,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:31:01,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:31:01,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:31:01,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:31:01,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:31:01,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1115146768] [2020-10-13 14:31:01,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:31:01,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:31:01,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788960910] [2020-10-13 14:31:01,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:31:01,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:31:01,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:31:01,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:31:01,905 INFO L87 Difference]: Start difference. First operand 17268 states and 26678 transitions. Second operand 6 states. [2020-10-13 14:31:02,151 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 14:31:05,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:31:05,231 INFO L93 Difference]: Finished difference Result 39799 states and 61521 transitions. [2020-10-13 14:31:05,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:31:05,232 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2020-10-13 14:31:05,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:31:05,268 INFO L225 Difference]: With dead ends: 39799 [2020-10-13 14:31:05,268 INFO L226 Difference]: Without dead ends: 28330 [2020-10-13 14:31:05,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 14:31:05,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28330 states. [2020-10-13 14:31:07,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28330 to 22822. [2020-10-13 14:31:07,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22822 states. [2020-10-13 14:31:07,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22822 states to 22822 states and 35098 transitions. [2020-10-13 14:31:07,385 INFO L78 Accepts]: Start accepts. Automaton has 22822 states and 35098 transitions. Word has length 117 [2020-10-13 14:31:07,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:31:07,385 INFO L479 AbstractCegarLoop]: Abstraction has 22822 states and 35098 transitions. [2020-10-13 14:31:07,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:31:07,385 INFO L276 IsEmpty]: Start isEmpty. Operand 22822 states and 35098 transitions. [2020-10-13 14:31:07,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-13 14:31:07,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:31:07,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:31:07,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 14:31:07,401 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:31:07,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:31:07,402 INFO L82 PathProgramCache]: Analyzing trace with hash 587993836, now seen corresponding path program 1 times [2020-10-13 14:31:07,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:31:07,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493078765] [2020-10-13 14:31:07,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:31:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:31:07,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:07,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:07,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:07,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:07,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:08,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:08,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:08,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:08,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:12,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:31:12,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 14:31:12,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 14:31:12,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 14:31:12,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:31:12,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:31:12,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:31:12,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 14:31:12,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:31:12,664 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 14:31:12,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:31:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:31:12,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:12,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:31:12,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:31:12,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:31:12,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 14:31:12,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:31:12,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:31:12,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:31:12,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:31:12,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:31:12,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:31:12,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493078765] [2020-10-13 14:31:12,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:31:12,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:31:12,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46274680] [2020-10-13 14:31:12,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:31:12,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:31:12,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:31:12,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:31:12,701 INFO L87 Difference]: Start difference. First operand 22822 states and 35098 transitions. Second operand 7 states. [2020-10-13 14:31:12,929 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 14:31:21,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:31:21,151 INFO L93 Difference]: Finished difference Result 97400 states and 150162 transitions. [2020-10-13 14:31:21,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:31:21,151 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2020-10-13 14:31:21,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:31:21,242 INFO L225 Difference]: With dead ends: 97400 [2020-10-13 14:31:21,242 INFO L226 Difference]: Without dead ends: 77372 [2020-10-13 14:31:21,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:31:21,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77372 states. [2020-10-13 14:31:23,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77372 to 22698. [2020-10-13 14:31:23,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22698 states. [2020-10-13 14:31:23,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22698 states to 22698 states and 34917 transitions. [2020-10-13 14:31:23,566 INFO L78 Accepts]: Start accepts. Automaton has 22698 states and 34917 transitions. Word has length 117 [2020-10-13 14:31:23,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:31:23,566 INFO L479 AbstractCegarLoop]: Abstraction has 22698 states and 34917 transitions. [2020-10-13 14:31:23,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:31:23,567 INFO L276 IsEmpty]: Start isEmpty. Operand 22698 states and 34917 transitions. [2020-10-13 14:31:23,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-13 14:31:23,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:31:23,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:31:23,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 14:31:23,580 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:31:23,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:31:23,580 INFO L82 PathProgramCache]: Analyzing trace with hash 371749592, now seen corresponding path program 1 times [2020-10-13 14:31:23,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:31:23,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1406801791] [2020-10-13 14:31:23,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:31:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:31:23,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:23,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:23,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:23,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:24,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:24,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:25,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:25,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:25,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:25,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:25,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:25,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:26,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:26,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:28,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:31:28,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 14:31:28,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-13 14:31:28,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-13 14:31:28,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:31:28,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:31:28,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:31:28,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 14:31:28,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:31:28,847 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 14:31:28,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:31:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:31:28,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:28,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:31:28,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:31:28,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:31:28,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 14:31:28,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:31:28,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:31:28,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:31:28,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:31:28,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:31:28,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:31:28,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1406801791] [2020-10-13 14:31:28,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:31:28,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:31:28,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258920673] [2020-10-13 14:31:28,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:31:28,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:31:28,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:31:28,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:31:28,887 INFO L87 Difference]: Start difference. First operand 22698 states and 34917 transitions. Second operand 6 states. [2020-10-13 14:31:29,116 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 14:31:32,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:31:32,335 INFO L93 Difference]: Finished difference Result 43178 states and 66503 transitions. [2020-10-13 14:31:32,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:31:32,336 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 118 [2020-10-13 14:31:32,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:31:32,365 INFO L225 Difference]: With dead ends: 43178 [2020-10-13 14:31:32,366 INFO L226 Difference]: Without dead ends: 22544 [2020-10-13 14:31:32,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 14:31:32,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22544 states. [2020-10-13 14:31:34,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22544 to 22542. [2020-10-13 14:31:34,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22542 states. [2020-10-13 14:31:34,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22542 states to 22542 states and 34697 transitions. [2020-10-13 14:31:34,341 INFO L78 Accepts]: Start accepts. Automaton has 22542 states and 34697 transitions. Word has length 118 [2020-10-13 14:31:34,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:31:34,341 INFO L479 AbstractCegarLoop]: Abstraction has 22542 states and 34697 transitions. [2020-10-13 14:31:34,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:31:34,341 INFO L276 IsEmpty]: Start isEmpty. Operand 22542 states and 34697 transitions. [2020-10-13 14:31:34,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-13 14:31:34,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:31:34,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:31:34,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 14:31:34,352 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:31:34,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:31:34,352 INFO L82 PathProgramCache]: Analyzing trace with hash -70623878, now seen corresponding path program 1 times [2020-10-13 14:31:34,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:31:34,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216614841] [2020-10-13 14:31:34,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:31:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:31:34,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:34,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:34,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:34,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:34,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:34,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:36,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:36,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:36,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:36,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:36,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:36,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:36,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:36,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:38,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:38,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:38,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:39,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:39,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:31:39,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 14:31:39,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-13 14:31:39,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 14:31:39,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:31:39,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:31:39,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 14:31:39,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 14:31:39,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:31:39,614 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 14:31:39,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:31:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:31:39,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:39,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:31:39,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:31:39,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:31:39,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 14:31:39,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:31:39,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:31:39,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:31:39,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:31:39,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:31:39,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:31:39,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [216614841] [2020-10-13 14:31:39,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:31:39,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:31:39,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031089480] [2020-10-13 14:31:39,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:31:39,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:31:39,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:31:39,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:31:39,648 INFO L87 Difference]: Start difference. First operand 22542 states and 34697 transitions. Second operand 7 states. [2020-10-13 14:31:39,898 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 14:31:48,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:31:48,148 INFO L93 Difference]: Finished difference Result 95822 states and 147761 transitions. [2020-10-13 14:31:48,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:31:48,149 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2020-10-13 14:31:48,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:31:48,239 INFO L225 Difference]: With dead ends: 95822 [2020-10-13 14:31:48,239 INFO L226 Difference]: Without dead ends: 76052 [2020-10-13 14:31:48,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:31:48,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76052 states. [2020-10-13 14:31:50,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76052 to 22406. [2020-10-13 14:31:50,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22406 states. [2020-10-13 14:31:50,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22406 states to 22406 states and 34482 transitions. [2020-10-13 14:31:50,665 INFO L78 Accepts]: Start accepts. Automaton has 22406 states and 34482 transitions. Word has length 118 [2020-10-13 14:31:50,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:31:50,665 INFO L479 AbstractCegarLoop]: Abstraction has 22406 states and 34482 transitions. [2020-10-13 14:31:50,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:31:50,666 INFO L276 IsEmpty]: Start isEmpty. Operand 22406 states and 34482 transitions. [2020-10-13 14:31:50,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-13 14:31:50,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:31:50,676 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:31:50,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 14:31:50,676 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:31:50,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:31:50,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1637140309, now seen corresponding path program 1 times [2020-10-13 14:31:50,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:31:50,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670278266] [2020-10-13 14:31:50,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:31:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:31:50,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:50,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:50,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:50,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:51,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:51,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:51,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:51,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:51,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:53,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:53,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:53,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:54,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:54,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:54,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:55,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:55,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:55,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:55,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:31:55,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 14:31:55,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-13 14:31:55,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 14:31:55,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:31:55,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:31:55,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 14:31:55,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 14:31:55,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:31:55,937 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 14:31:55,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:31:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:31:55,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:55,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:31:55,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:31:55,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:31:55,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 14:31:55,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:31:55,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:31:55,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:31:55,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:31:55,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:31:55,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:31:55,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [670278266] [2020-10-13 14:31:55,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:31:55,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:31:55,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92699001] [2020-10-13 14:31:55,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:31:55,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:31:55,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:31:55,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:31:55,979 INFO L87 Difference]: Start difference. First operand 22406 states and 34482 transitions. Second operand 7 states. [2020-10-13 14:31:56,216 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 14:32:05,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:32:05,249 INFO L93 Difference]: Finished difference Result 95446 states and 147162 transitions. [2020-10-13 14:32:05,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:32:05,249 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2020-10-13 14:32:05,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:32:05,363 INFO L225 Difference]: With dead ends: 95446 [2020-10-13 14:32:05,363 INFO L226 Difference]: Without dead ends: 75704 [2020-10-13 14:32:05,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:32:05,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75704 states. [2020-10-13 14:32:07,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75704 to 22266. [2020-10-13 14:32:07,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22266 states. [2020-10-13 14:32:07,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22266 states to 22266 states and 34263 transitions. [2020-10-13 14:32:07,772 INFO L78 Accepts]: Start accepts. Automaton has 22266 states and 34263 transitions. Word has length 118 [2020-10-13 14:32:07,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:32:07,773 INFO L479 AbstractCegarLoop]: Abstraction has 22266 states and 34263 transitions. [2020-10-13 14:32:07,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:32:07,773 INFO L276 IsEmpty]: Start isEmpty. Operand 22266 states and 34263 transitions. [2020-10-13 14:32:07,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-13 14:32:07,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:32:07,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:32:07,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 14:32:07,784 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:32:07,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:32:07,784 INFO L82 PathProgramCache]: Analyzing trace with hash -854067159, now seen corresponding path program 1 times [2020-10-13 14:32:07,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:32:07,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122365361] [2020-10-13 14:32:07,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:32:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:32:07,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:07,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:07,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:08,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:08,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:08,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:10,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:10,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:10,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:10,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:10,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:10,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:11,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:11,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:11,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:11,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:11,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:11,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:12,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:12,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:12,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:32:12,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 14:32:12,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-13 14:32:12,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 14:32:12,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:32:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:32:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:32:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 14:32:12,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:32:13,045 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 14:32:13,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:32:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:32:13,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:13,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:32:13,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:32:13,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:32:13,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 14:32:13,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:32:13,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:32:13,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:32:13,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:32:13,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:32:13,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:32:13,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122365361] [2020-10-13 14:32:13,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:32:13,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:32:13,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870018977] [2020-10-13 14:32:13,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:32:13,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:32:13,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:32:13,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:32:13,078 INFO L87 Difference]: Start difference. First operand 22266 states and 34263 transitions. Second operand 7 states. [2020-10-13 14:32:13,319 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 14:32:23,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:32:23,332 INFO L93 Difference]: Finished difference Result 95740 states and 147638 transitions. [2020-10-13 14:32:23,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:32:23,332 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2020-10-13 14:32:23,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:32:23,425 INFO L225 Difference]: With dead ends: 95740 [2020-10-13 14:32:23,425 INFO L226 Difference]: Without dead ends: 76005 [2020-10-13 14:32:23,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:32:23,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76005 states. [2020-10-13 14:32:26,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76005 to 22189. [2020-10-13 14:32:26,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22189 states. [2020-10-13 14:32:26,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22189 states to 22189 states and 34143 transitions. [2020-10-13 14:32:26,046 INFO L78 Accepts]: Start accepts. Automaton has 22189 states and 34143 transitions. Word has length 118 [2020-10-13 14:32:26,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:32:26,047 INFO L479 AbstractCegarLoop]: Abstraction has 22189 states and 34143 transitions. [2020-10-13 14:32:26,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:32:26,047 INFO L276 IsEmpty]: Start isEmpty. Operand 22189 states and 34143 transitions. [2020-10-13 14:32:26,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-13 14:32:26,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:32:26,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:32:26,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 14:32:26,058 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:32:26,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:32:26,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1874383706, now seen corresponding path program 1 times [2020-10-13 14:32:26,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:32:26,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [165679312] [2020-10-13 14:32:26,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:32:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:32:26,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:26,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:26,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:26,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:26,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:26,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:27,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:27,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:27,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:27,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:27,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:28,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:28,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:29,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:29,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:29,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:29,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:30,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:30,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:30,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:31,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:32:31,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 14:32:31,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-13 14:32:31,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 14:32:31,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:32:31,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:32:31,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:32:31,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 14:32:31,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:32:31,314 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 14:32:31,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:32:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:32:31,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:31,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:32:31,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:32:31,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:32:31,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 14:32:31,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:32:31,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:32:31,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:32:31,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:32:31,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:32:31,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:32:31,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [165679312] [2020-10-13 14:32:31,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:32:31,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:32:31,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878915239] [2020-10-13 14:32:31,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:32:31,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:32:31,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:32:31,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:32:31,345 INFO L87 Difference]: Start difference. First operand 22189 states and 34143 transitions. Second operand 7 states. [2020-10-13 14:32:31,577 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 14:32:41,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:32:41,413 INFO L93 Difference]: Finished difference Result 95399 states and 147095 transitions. [2020-10-13 14:32:41,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:32:41,413 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2020-10-13 14:32:41,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:32:41,493 INFO L225 Difference]: With dead ends: 95399 [2020-10-13 14:32:41,493 INFO L226 Difference]: Without dead ends: 75692 [2020-10-13 14:32:41,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:32:41,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75692 states. [2020-10-13 14:32:44,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75692 to 22109. [2020-10-13 14:32:44,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22109 states. [2020-10-13 14:32:44,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22109 states to 22109 states and 34020 transitions. [2020-10-13 14:32:44,206 INFO L78 Accepts]: Start accepts. Automaton has 22109 states and 34020 transitions. Word has length 118 [2020-10-13 14:32:44,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:32:44,206 INFO L479 AbstractCegarLoop]: Abstraction has 22109 states and 34020 transitions. [2020-10-13 14:32:44,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:32:44,207 INFO L276 IsEmpty]: Start isEmpty. Operand 22109 states and 34020 transitions. [2020-10-13 14:32:44,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-13 14:32:44,214 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:32:44,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:32:44,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 14:32:44,215 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:32:44,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:32:44,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1523609973, now seen corresponding path program 1 times [2020-10-13 14:32:44,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:32:44,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846435383] [2020-10-13 14:32:44,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:32:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:32:44,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:44,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:44,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:44,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:44,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:44,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:45,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:45,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:45,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:45,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:45,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:45,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:46,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:46,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:47,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:47,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:47,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:48,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:48,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:48,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:49,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:32:49,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 14:32:49,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-13 14:32:49,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 14:32:49,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:32:49,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:32:49,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:32:49,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 14:32:49,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:32:49,460 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 14:32:49,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:32:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:32:49,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:49,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:32:49,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:32:49,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:32:49,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 14:32:49,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:32:49,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:32:49,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:32:49,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:32:49,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:32:49,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:32:49,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1846435383] [2020-10-13 14:32:49,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:32:49,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:32:49,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890349546] [2020-10-13 14:32:49,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:32:49,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:32:49,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:32:49,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:32:49,491 INFO L87 Difference]: Start difference. First operand 22109 states and 34020 transitions. Second operand 7 states. [2020-10-13 14:32:49,714 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 14:32:59,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:32:59,931 INFO L93 Difference]: Finished difference Result 95214 states and 146804 transitions. [2020-10-13 14:32:59,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:32:59,931 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2020-10-13 14:32:59,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:33:00,008 INFO L225 Difference]: With dead ends: 95214 [2020-10-13 14:33:00,008 INFO L226 Difference]: Without dead ends: 75583 [2020-10-13 14:33:00,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:33:00,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75583 states. [2020-10-13 14:33:02,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75583 to 22030. [2020-10-13 14:33:02,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22030 states. [2020-10-13 14:33:02,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22030 states to 22030 states and 33901 transitions. [2020-10-13 14:33:02,648 INFO L78 Accepts]: Start accepts. Automaton has 22030 states and 33901 transitions. Word has length 118 [2020-10-13 14:33:02,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:33:02,648 INFO L479 AbstractCegarLoop]: Abstraction has 22030 states and 33901 transitions. [2020-10-13 14:33:02,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:33:02,648 INFO L276 IsEmpty]: Start isEmpty. Operand 22030 states and 33901 transitions. [2020-10-13 14:33:02,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-13 14:33:02,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:33:02,657 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:33:02,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 14:33:02,657 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:33:02,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:33:02,657 INFO L82 PathProgramCache]: Analyzing trace with hash -280794211, now seen corresponding path program 1 times [2020-10-13 14:33:02,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:33:02,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499491722] [2020-10-13 14:33:02,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:33:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:33:02,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:02,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:02,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:03,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:03,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:03,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:03,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:03,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:05,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:05,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:05,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:05,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:05,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:06,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:06,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:06,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:06,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:07,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:07,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:07,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:33:07,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-13 14:33:07,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-13 14:33:07,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 14:33:07,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:33:07,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:33:07,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:33:07,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 14:33:07,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:33:07,916 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 14:33:07,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:33:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:33:07,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:07,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:33:07,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:33:07,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:33:07,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 14:33:07,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:33:07,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:33:07,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:33:07,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:33:07,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:33:07,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:33:07,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499491722] [2020-10-13 14:33:07,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:33:07,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:33:07,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737123223] [2020-10-13 14:33:07,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:33:07,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:33:07,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:33:07,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:33:07,960 INFO L87 Difference]: Start difference. First operand 22030 states and 33901 transitions. Second operand 6 states. [2020-10-13 14:33:08,197 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 14:33:11,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:33:11,693 INFO L93 Difference]: Finished difference Result 41666 states and 64175 transitions. [2020-10-13 14:33:11,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:33:11,694 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2020-10-13 14:33:11,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:33:11,714 INFO L225 Difference]: With dead ends: 41666 [2020-10-13 14:33:11,714 INFO L226 Difference]: Without dead ends: 21884 [2020-10-13 14:33:11,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 14:33:11,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21884 states. [2020-10-13 14:33:14,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21884 to 21882. [2020-10-13 14:33:14,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21882 states. [2020-10-13 14:33:14,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21882 states to 21882 states and 33674 transitions. [2020-10-13 14:33:14,182 INFO L78 Accepts]: Start accepts. Automaton has 21882 states and 33674 transitions. Word has length 119 [2020-10-13 14:33:14,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:33:14,182 INFO L479 AbstractCegarLoop]: Abstraction has 21882 states and 33674 transitions. [2020-10-13 14:33:14,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:33:14,182 INFO L276 IsEmpty]: Start isEmpty. Operand 21882 states and 33674 transitions. [2020-10-13 14:33:14,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-13 14:33:14,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:33:14,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:33:14,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 14:33:14,190 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:33:14,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:33:14,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1429436938, now seen corresponding path program 1 times [2020-10-13 14:33:14,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:33:14,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812983182] [2020-10-13 14:33:14,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:33:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:33:14,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:14,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:14,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:14,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:14,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:14,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:14,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:14,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:15,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:15,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:19,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:33:19,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-13 14:33:19,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-13 14:33:19,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 14:33:19,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:33:19,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:33:19,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:33:19,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 14:33:19,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:33:19,467 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 14:33:19,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:33:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:33:19,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:19,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:33:19,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:33:19,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:33:19,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 14:33:19,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:33:19,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:33:19,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:33:19,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:33:19,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:33:19,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:33:19,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [812983182] [2020-10-13 14:33:19,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:33:19,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:33:19,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088707513] [2020-10-13 14:33:19,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:33:19,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:33:19,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:33:19,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:33:19,538 INFO L87 Difference]: Start difference. First operand 21882 states and 33674 transitions. Second operand 6 states. [2020-10-13 14:33:19,777 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 14:33:23,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:33:23,185 INFO L93 Difference]: Finished difference Result 41214 states and 63500 transitions. [2020-10-13 14:33:23,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:33:23,185 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2020-10-13 14:33:23,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:33:23,212 INFO L225 Difference]: With dead ends: 41214 [2020-10-13 14:33:23,212 INFO L226 Difference]: Without dead ends: 21151 [2020-10-13 14:33:23,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 14:33:23,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21151 states. [2020-10-13 14:33:25,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21151 to 21149. [2020-10-13 14:33:25,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21149 states. [2020-10-13 14:33:25,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21149 states to 21149 states and 32580 transitions. [2020-10-13 14:33:25,814 INFO L78 Accepts]: Start accepts. Automaton has 21149 states and 32580 transitions. Word has length 119 [2020-10-13 14:33:25,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:33:25,814 INFO L479 AbstractCegarLoop]: Abstraction has 21149 states and 32580 transitions. [2020-10-13 14:33:25,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:33:25,814 INFO L276 IsEmpty]: Start isEmpty. Operand 21149 states and 32580 transitions. [2020-10-13 14:33:25,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-13 14:33:25,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:33:25,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:33:25,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 14:33:25,820 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:33:25,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:33:25,820 INFO L82 PathProgramCache]: Analyzing trace with hash -137079493, now seen corresponding path program 1 times [2020-10-13 14:33:25,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:33:25,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1547424283] [2020-10-13 14:33:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:33:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:33:25,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:25,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:25,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:26,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:26,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:26,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:26,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:27,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:28,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:28,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:28,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:28,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:28,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:29,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:29,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:33:29,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking...