/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/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:16:55,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:16:55,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:16:55,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:16:55,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:16:55,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:16:55,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:16:55,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:16:55,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:16:55,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:16:55,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:16:55,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:16:55,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:16:55,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:16:55,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:16:55,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:16:55,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:16:55,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:16:55,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:16:55,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:16:55,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:16:55,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:16:55,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:16:55,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:16:55,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:16:55,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:16:55,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:16:55,962 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:16:55,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:16:55,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:16:55,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:16:55,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:16:55,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:16:55,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:16:55,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:16:55,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:16:55,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:16:55,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:16:55,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:16:55,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:16:55,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:16:55,984 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 13:16:56,030 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:16:56,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:16:56,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:16:56,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:16:56,032 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:16:56,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:16:56,033 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:16:56,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:16:56,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:16:56,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:16:56,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:16:56,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:16:56,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:16:56,034 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:16:56,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:16:56,035 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:16:56,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:16:56,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:16:56,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:16:56,036 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:16:56,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:16:56,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:16:56,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:16:56,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:16:56,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:16:56,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:16:56,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:16:56,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:16:56,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:16:56,039 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 13:16:56,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:16:56,374 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:16:56,380 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:16:56,382 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:16:56,382 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:16:56,383 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c [2020-10-13 13:16:56,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8edf240e/83e1854845544212bb1b813279e2af3b/FLAG7afa01f75 [2020-10-13 13:16:56,923 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:16:56,924 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c [2020-10-13 13:16:56,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8edf240e/83e1854845544212bb1b813279e2af3b/FLAG7afa01f75 [2020-10-13 13:16:57,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8edf240e/83e1854845544212bb1b813279e2af3b [2020-10-13 13:16:57,203 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:16:57,205 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:16:57,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:16:57,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:16:57,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:16:57,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:16:57" (1/1) ... [2020-10-13 13:16:57,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@331f3ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:57, skipping insertion in model container [2020-10-13 13:16:57,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:16:57" (1/1) ... [2020-10-13 13:16:57,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:16:57,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:16:57,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:16:57,751 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:16:57,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:16:57,924 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:16:57,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:57 WrapperNode [2020-10-13 13:16:57,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:16:57,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:16:57,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:16:57,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:16:57,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:57" (1/1) ... [2020-10-13 13:16:57,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:57" (1/1) ... [2020-10-13 13:16:57,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:57" (1/1) ... [2020-10-13 13:16:57,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:57" (1/1) ... [2020-10-13 13:16:57,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:57" (1/1) ... [2020-10-13 13:16:58,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:57" (1/1) ... [2020-10-13 13:16:58,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:57" (1/1) ... [2020-10-13 13:16:58,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:16:58,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:16:58,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:16:58,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:16:58,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:16:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:16:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:16:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 13:16:58,102 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-13 13:16:58,102 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-13 13:16:58,102 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-13 13:16:58,102 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-13 13:16:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:16:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:16:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:16:58,104 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:16:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:16:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:16:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:16:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:16:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:16:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 13:16:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:16:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:16:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 13:16:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 13:16:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 13:16:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 13:16:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:16:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:16:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:16:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:16:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:16:59,352 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:16:59,353 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:16:59,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:16:59 BoogieIcfgContainer [2020-10-13 13:16:59,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:16:59,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:16:59,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:16:59,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:16:59,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:16:57" (1/3) ... [2020-10-13 13:16:59,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e3011a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:16:59, skipping insertion in model container [2020-10-13 13:16:59,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:57" (2/3) ... [2020-10-13 13:16:59,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e3011a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:16:59, skipping insertion in model container [2020-10-13 13:16:59,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:16:59" (3/3) ... [2020-10-13 13:16:59,368 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.2.ufo.BOUNDED-8.pals.c [2020-10-13 13:16:59,379 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:16:59,388 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:16:59,403 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:16:59,431 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:16:59,431 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:16:59,431 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:16:59,431 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:16:59,432 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:16:59,432 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:16:59,432 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:16:59,432 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:16:59,458 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states. [2020-10-13 13:16:59,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-13 13:16:59,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:16:59,476 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] [2020-10-13 13:16:59,477 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:16:59,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:16:59,484 INFO L82 PathProgramCache]: Analyzing trace with hash 465864368, now seen corresponding path program 1 times [2020-10-13 13:16:59,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:16:59,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309899075] [2020-10-13 13:16:59,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:16:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:00,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:00,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:00,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-13 13:17:00,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:00,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 721 [2020-10-13 13:17:00,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:00,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:00,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 13:17:00,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:00,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:17:01,036 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:17:01,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:17:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:01,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:01,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:01,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:17:01,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:01,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:17:01,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:01,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:01,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:01,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:01,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:01,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:17:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:01,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:01,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:01,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 13:17:01,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:01,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 13:17:01,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:01,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:01,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:01,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:01,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 31 [2020-10-13 13:17:01,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-13 13:17:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:01,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:01,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:01,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:17:01,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:01,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:17:01,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:17:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:01,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:01,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 13:17:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:01,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:01,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:01,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:01,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:01,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:17:01,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:01,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:01,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:01,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:01,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:01,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 13:17:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:01,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:01,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:01,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:01,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:01,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:17:01,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:01,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:01,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:01,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:01,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:01,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:17:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:01,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:01,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:01,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:01,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:01,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:17:01,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:01,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:01,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:01,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:01,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:01,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:17:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:01,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:01,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:01,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:01,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:01,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:17:01,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:01,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:01,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:01,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:01,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:01,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-13 13:17:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:01,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:01,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:01,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:01,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:01,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:17:01,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:01,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:01,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:01,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:01,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:01,431 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 13:17:01,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309899075] [2020-10-13 13:17:01,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:17:01,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 13:17:01,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614965227] [2020-10-13 13:17:01,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 13:17:01,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:17:01,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 13:17:01,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 13:17:01,455 INFO L87 Difference]: Start difference. First operand 334 states. Second operand 7 states. [2020-10-13 13:17:03,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:17:03,904 INFO L93 Difference]: Finished difference Result 495 states and 833 transitions. [2020-10-13 13:17:03,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 13:17:03,910 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2020-10-13 13:17:03,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:17:03,941 INFO L225 Difference]: With dead ends: 495 [2020-10-13 13:17:03,942 INFO L226 Difference]: Without dead ends: 357 [2020-10-13 13:17:03,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:17:03,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-10-13 13:17:04,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 329. [2020-10-13 13:17:04,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-10-13 13:17:04,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 568 transitions. [2020-10-13 13:17:04,043 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 568 transitions. Word has length 104 [2020-10-13 13:17:04,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:17:04,043 INFO L479 AbstractCegarLoop]: Abstraction has 329 states and 568 transitions. [2020-10-13 13:17:04,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 13:17:04,044 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 568 transitions. [2020-10-13 13:17:04,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-13 13:17:04,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:17:04,048 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] [2020-10-13 13:17:04,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:17:04,049 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:17:04,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:17:04,049 INFO L82 PathProgramCache]: Analyzing trace with hash 889511090, now seen corresponding path program 1 times [2020-10-13 13:17:04,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:17:04,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1416720382] [2020-10-13 13:17:04,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:17:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:04,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:05,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:05,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-13 13:17:05,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:05,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1232 [2020-10-13 13:17:05,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:17:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-13 13:17:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:05,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:05,744 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:17:05,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:17:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:05,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:05,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:05,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:17:05,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:05,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 13:17:05,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:05,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:05,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:05,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:05,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:05,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:17:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:05,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:06,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:06,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 13:17:06,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:06,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-10-13 13:17:06,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:06,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:06,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:06,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 13:17:06,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:06,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-13 13:17:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:06,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:06,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:06,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:17:06,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:06,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:17:06,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:06,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:06,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:17:06,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:17:06,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:06,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 13:17:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:06,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:06,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:06,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:06,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:06,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:17:06,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:06,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:06,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:06,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:06,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:06,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 13:17:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:06,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:06,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:06,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:06,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:06,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:17:06,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:06,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:06,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:06,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:06,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:06,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:17:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:06,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:06,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:06,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:06,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:06,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:17:06,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:06,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:06,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:06,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:06,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:06,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:17:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:06,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:06,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:06,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:06,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:06,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:17:06,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:06,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:06,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:06,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:06,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:06,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-13 13:17:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:06,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:06,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:06,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:06,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:06,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:17:06,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:06,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:06,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:06,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:06,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:06,484 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 13:17:06,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1416720382] [2020-10-13 13:17:06,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:17:06,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:17:06,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320547060] [2020-10-13 13:17:06,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:17:06,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:17:06,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:17:06,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:17:06,490 INFO L87 Difference]: Start difference. First operand 329 states and 568 transitions. Second operand 13 states. [2020-10-13 13:17:08,726 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:17:09,166 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-13 13:17:09,615 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:17:09,968 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-13 13:17:12,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:17:12,528 INFO L93 Difference]: Finished difference Result 498 states and 837 transitions. [2020-10-13 13:17:12,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 13:17:12,529 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 104 [2020-10-13 13:17:12,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:17:12,533 INFO L225 Difference]: With dead ends: 498 [2020-10-13 13:17:12,534 INFO L226 Difference]: Without dead ends: 367 [2020-10-13 13:17:12,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:17:12,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2020-10-13 13:17:12,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 329. [2020-10-13 13:17:12,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-10-13 13:17:12,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 526 transitions. [2020-10-13 13:17:12,582 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 526 transitions. Word has length 104 [2020-10-13 13:17:12,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:17:12,582 INFO L479 AbstractCegarLoop]: Abstraction has 329 states and 526 transitions. [2020-10-13 13:17:12,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:17:12,583 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 526 transitions. [2020-10-13 13:17:12,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-13 13:17:12,585 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:17:12,585 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, 1, 1, 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 13:17:12,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:17:12,586 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:17:12,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:17:12,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1800756654, now seen corresponding path program 1 times [2020-10-13 13:17:12,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:17:12,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493641847] [2020-10-13 13:17:12,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:17:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:12,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:12,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:13,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:13,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:17,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:17,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-13 13:17:17,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:17:17,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-13 13:17:17,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:17,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:17,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-13 13:17:17,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 13:17:17,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:18,072 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:17:18,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:17:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:18,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:18,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:18,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:17:18,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:18,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:17:18,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:18,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:18,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:18,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:18,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 13:17:18,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:17:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:18,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:18,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:18,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:17:18,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:18,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-13 13:17:18,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:18,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:18,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:18,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:17:18,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:18,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:17:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:18,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:18,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:18,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:17:18,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:18,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:17:18,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:18,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:18,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:18,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:17:18,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:18,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:17:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:18,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:18,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:18,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:18,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:18,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 13:17:18,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:18,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:18,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:17:18,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:18,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:18,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:17:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:18,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:18,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:18,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:18,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:18,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:17:18,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:18,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:18,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:18,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:18,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:18,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 13:17:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:18,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:18,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:18,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:18,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:18,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:17:18,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:18,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:18,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:18,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:18,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:18,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:17:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:18,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:18,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:18,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:18,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:18,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:17:18,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:18,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:18,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:18,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:18,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:18,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 13:17:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:18,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:18,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:18,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:18,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:18,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:17:18,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:18,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:18,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:18,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:18,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:18,579 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 13:17:18,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493641847] [2020-10-13 13:17:18,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:17:18,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:17:18,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912978339] [2020-10-13 13:17:18,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:17:18,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:17:18,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:17:18,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:17:18,583 INFO L87 Difference]: Start difference. First operand 329 states and 526 transitions. Second operand 10 states. [2020-10-13 13:17:18,942 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:17:21,658 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:17:23,313 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:17:23,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:17:23,891 INFO L93 Difference]: Finished difference Result 635 states and 1015 transitions. [2020-10-13 13:17:23,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:17:23,892 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 145 [2020-10-13 13:17:23,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:17:23,899 INFO L225 Difference]: With dead ends: 635 [2020-10-13 13:17:23,899 INFO L226 Difference]: Without dead ends: 510 [2020-10-13 13:17:23,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:17:23,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-10-13 13:17:23,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 446. [2020-10-13 13:17:23,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-10-13 13:17:23,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 707 transitions. [2020-10-13 13:17:23,947 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 707 transitions. Word has length 145 [2020-10-13 13:17:23,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:17:23,947 INFO L479 AbstractCegarLoop]: Abstraction has 446 states and 707 transitions. [2020-10-13 13:17:23,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:17:23,948 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 707 transitions. [2020-10-13 13:17:23,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-13 13:17:23,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:17:23,951 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, 1, 1, 1, 1, 1, 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 13:17:23,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:17:23,951 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:17:23,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:17:23,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1977096497, now seen corresponding path program 1 times [2020-10-13 13:17:23,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:17:23,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885760564] [2020-10-13 13:17:23,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:17:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:24,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:24,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:24,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:24,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:24,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:25,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:29,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:29,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-13 13:17:29,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:17:29,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 13:17:29,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-13 13:17:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:17:29,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:29,443 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:17:29,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:17:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:29,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:29,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:29,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:17:29,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:29,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:17:29,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:29,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:29,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:29,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:29,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:29,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:17:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:29,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:29,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:29,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:17:29,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:29,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-13 13:17:29,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:29,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:29,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:29,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 13:17:29,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:29,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:17:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:29,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:29,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:29,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:17:29,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:29,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:17:29,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:29,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:29,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:29,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:17:29,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:29,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:17:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:29,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:29,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:29,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:29,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:29,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:17:29,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:29,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:29,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:17:29,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:17:29,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:29,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:17:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:29,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:29,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:29,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:29,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:29,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:17:29,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:29,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:29,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:29,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:29,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:29,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 13:17:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:29,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:29,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:29,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:29,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:29,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:17:29,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:29,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:29,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:29,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:29,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:29,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 13:17:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:29,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:29,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:29,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:29,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:29,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:17:29,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:29,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:29,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:29,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:29,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:29,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-13 13:17:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:29,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:29,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:29,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:29,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:29,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:17:29,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:29,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:29,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:29,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:29,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:29,895 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 13:17:29,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885760564] [2020-10-13 13:17:29,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:17:29,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:17:29,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905862412] [2020-10-13 13:17:29,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:17:29,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:17:29,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:17:29,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:17:29,899 INFO L87 Difference]: Start difference. First operand 446 states and 707 transitions. Second operand 9 states. [2020-10-13 13:17:30,251 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:17:34,024 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:17:34,933 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:17:35,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:17:35,510 INFO L93 Difference]: Finished difference Result 762 states and 1211 transitions. [2020-10-13 13:17:35,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:17:35,511 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-10-13 13:17:35,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:17:35,515 INFO L225 Difference]: With dead ends: 762 [2020-10-13 13:17:35,515 INFO L226 Difference]: Without dead ends: 632 [2020-10-13 13:17:35,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:17:35,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2020-10-13 13:17:35,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 553. [2020-10-13 13:17:35,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-10-13 13:17:35,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 878 transitions. [2020-10-13 13:17:35,569 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 878 transitions. Word has length 148 [2020-10-13 13:17:35,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:17:35,569 INFO L479 AbstractCegarLoop]: Abstraction has 553 states and 878 transitions. [2020-10-13 13:17:35,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:17:35,569 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 878 transitions. [2020-10-13 13:17:35,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-13 13:17:35,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:17:35,571 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, 1, 1, 1, 1, 1, 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 13:17:35,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:17:35,572 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:17:35,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:17:35,572 INFO L82 PathProgramCache]: Analyzing trace with hash -977942549, now seen corresponding path program 1 times [2020-10-13 13:17:35,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:17:35,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1971680534] [2020-10-13 13:17:35,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:17:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:35,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:35,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:35,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:36,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:36,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:38,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:40,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:40,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-13 13:17:40,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:17:40,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 13:17:40,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:40,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:40,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-13 13:17:40,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-13 13:17:40,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:41,117 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:17:41,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:17:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:41,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:41,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:41,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:17:41,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:41,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:17:41,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:41,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:41,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:41,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:41,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:41,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:17:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:41,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:41,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:41,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:17:41,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:41,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-13 13:17:41,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:41,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:41,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:41,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 13:17:41,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:41,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:17:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:41,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:41,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:41,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:17:41,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:41,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:17:41,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:41,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:41,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:41,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:17:41,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:41,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:17:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:41,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:41,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:41,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:41,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:41,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:17:41,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:41,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:41,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:41,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:41,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:41,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:17:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:41,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:41,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:41,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:41,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:41,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:17:41,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:41,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:41,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:17:41,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:41,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:41,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 13:17:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:41,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:41,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:41,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:41,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:41,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:17:41,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:41,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:41,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:41,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 13:17:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:41,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:41,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:41,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:41,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:41,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:17:41,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:41,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:41,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:41,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:41,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:41,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-13 13:17:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:41,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:41,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:41,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:41,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:41,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:17:41,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:41,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:41,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:41,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:41,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:41,796 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 13:17:41,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1971680534] [2020-10-13 13:17:41,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:17:41,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:17:41,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883373030] [2020-10-13 13:17:41,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:17:41,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:17:41,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:17:41,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:17:41,800 INFO L87 Difference]: Start difference. First operand 553 states and 878 transitions. Second operand 10 states. [2020-10-13 13:17:42,308 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:17:46,651 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:17:47,426 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:17:47,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:17:47,895 INFO L93 Difference]: Finished difference Result 1387 states and 2190 transitions. [2020-10-13 13:17:47,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:17:47,896 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2020-10-13 13:17:47,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:17:47,906 INFO L225 Difference]: With dead ends: 1387 [2020-10-13 13:17:47,907 INFO L226 Difference]: Without dead ends: 1041 [2020-10-13 13:17:47,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:17:47,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2020-10-13 13:17:48,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 876. [2020-10-13 13:17:48,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2020-10-13 13:17:48,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1382 transitions. [2020-10-13 13:17:48,053 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1382 transitions. Word has length 148 [2020-10-13 13:17:48,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:17:48,054 INFO L479 AbstractCegarLoop]: Abstraction has 876 states and 1382 transitions. [2020-10-13 13:17:48,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:17:48,054 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1382 transitions. [2020-10-13 13:17:48,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-13 13:17:48,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:17:48,058 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:17:48,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:17:48,059 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:17:48,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:17:48,059 INFO L82 PathProgramCache]: Analyzing trace with hash 2091454308, now seen corresponding path program 1 times [2020-10-13 13:17:48,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:17:48,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615024264] [2020-10-13 13:17:48,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:17:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:48,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:48,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:48,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:48,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:48,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:49,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:49,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:49,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:49,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:53,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:53,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-13 13:17:53,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:17:53,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-13 13:17:53,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:53,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:53,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-13 13:17:53,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:17:53,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:53,599 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:17:53,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:17:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:53,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:53,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:53,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:17:53,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:53,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:17:53,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:53,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:53,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:53,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:53,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:53,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:17:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:53,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:53,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:53,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:17:53,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:53,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-13 13:17:53,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:53,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:53,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:53,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 13:17:53,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:53,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:17:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:53,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:53,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:53,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:17:53,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:53,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:17:53,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:53,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:53,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:53,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:17:53,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:53,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:17:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:53,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:53,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:53,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:53,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:53,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:17:53,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:53,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:53,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:53,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:53,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:53,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:17:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:53,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:53,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:53,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:53,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:53,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:17:53,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:53,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:53,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:17:53,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:17:53,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:54,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:17:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:54,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:54,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:54,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:54,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:54,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:17:54,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:54,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:54,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:54,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:17:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:54,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:54,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:54,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:54,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:54,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:17:54,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:54,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:54,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:54,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:54,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:54,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:17:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:54,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:54,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:54,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:54,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:54,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:17:54,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:54,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:54,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:54,194 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 13:17:54,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615024264] [2020-10-13 13:17:54,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:17:54,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:17:54,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204594799] [2020-10-13 13:17:54,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:17:54,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:17:54,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:17:54,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:17:54,197 INFO L87 Difference]: Start difference. First operand 876 states and 1382 transitions. Second operand 9 states. [2020-10-13 13:17:54,637 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:17:58,143 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:17:58,367 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:17:58,526 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:17:59,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:17:59,445 INFO L93 Difference]: Finished difference Result 1740 states and 2747 transitions. [2020-10-13 13:17:59,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:17:59,446 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-10-13 13:17:59,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:17:59,454 INFO L225 Difference]: With dead ends: 1740 [2020-10-13 13:17:59,454 INFO L226 Difference]: Without dead ends: 1388 [2020-10-13 13:17:59,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:17:59,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2020-10-13 13:17:59,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1169. [2020-10-13 13:17:59,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1169 states. [2020-10-13 13:17:59,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1841 transitions. [2020-10-13 13:17:59,563 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1841 transitions. Word has length 151 [2020-10-13 13:17:59,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:17:59,564 INFO L479 AbstractCegarLoop]: Abstraction has 1169 states and 1841 transitions. [2020-10-13 13:17:59,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:17:59,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1841 transitions. [2020-10-13 13:17:59,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-13 13:17:59,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:17:59,567 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:17:59,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:17:59,567 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:17:59,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:17:59,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1812788608, now seen corresponding path program 1 times [2020-10-13 13:17:59,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:17:59,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1266983393] [2020-10-13 13:17:59,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:17:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:59,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:59,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:59,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:59,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:00,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:00,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:00,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:04,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:04,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-13 13:18:04,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:18:04,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-13 13:18:04,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:04,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:18:04,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-13 13:18:04,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 13:18:04,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:05,009 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:18:05,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:18:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:05,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:05,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:05,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:18:05,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:05,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:18:05,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:05,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:05,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:05,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:05,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:05,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:18:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:05,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:05,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:05,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:18:05,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:05,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-13 13:18:05,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:05,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:05,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:05,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:18:05,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:05,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:18:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:05,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:05,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:05,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:18:05,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:05,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:18:05,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:05,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:05,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:05,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:18:05,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:05,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:18:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:05,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:05,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:05,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:05,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:05,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:18:05,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:05,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:05,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:05,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:18:05,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:05,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:18:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:05,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:05,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:05,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:05,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:05,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:18:05,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:05,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:05,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:05,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:18:05,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:05,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:18:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:05,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:05,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:05,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:18:05,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:05,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:18:05,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:05,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:18:05,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:18:05,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:18:05,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:05,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:18:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:05,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:05,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:05,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:18:05,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:05,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:18:05,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:05,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:05,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:18:05,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:05,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:05,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:18:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:05,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:05,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:05,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:18:05,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:05,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:18:05,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:05,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:05,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:18:05,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:05,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:05,449 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 13:18:05,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1266983393] [2020-10-13 13:18:05,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:18:05,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:18:05,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357579937] [2020-10-13 13:18:05,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:18:05,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:18:05,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:18:05,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:18:05,451 INFO L87 Difference]: Start difference. First operand 1169 states and 1841 transitions. Second operand 10 states. [2020-10-13 13:18:05,803 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:18:10,639 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:18:11,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:18:11,125 INFO L93 Difference]: Finished difference Result 3454 states and 5406 transitions. [2020-10-13 13:18:11,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:18:11,126 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 151 [2020-10-13 13:18:11,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:18:11,139 INFO L225 Difference]: With dead ends: 3454 [2020-10-13 13:18:11,139 INFO L226 Difference]: Without dead ends: 2507 [2020-10-13 13:18:11,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:18:11,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2507 states. [2020-10-13 13:18:11,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2507 to 2051. [2020-10-13 13:18:11,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2051 states. [2020-10-13 13:18:11,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2051 states to 2051 states and 3197 transitions. [2020-10-13 13:18:11,346 INFO L78 Accepts]: Start accepts. Automaton has 2051 states and 3197 transitions. Word has length 151 [2020-10-13 13:18:11,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:18:11,347 INFO L479 AbstractCegarLoop]: Abstraction has 2051 states and 3197 transitions. [2020-10-13 13:18:11,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:18:11,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2051 states and 3197 transitions. [2020-10-13 13:18:11,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 13:18:11,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:18:11,349 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:18:11,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:18:11,350 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:18:11,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:18:11,350 INFO L82 PathProgramCache]: Analyzing trace with hash -587723515, now seen corresponding path program 1 times [2020-10-13 13:18:11,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:18:11,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389098702] [2020-10-13 13:18:11,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:18:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:11,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:11,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:11,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:11,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:11,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:11,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:12,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:16,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:16,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 13:18:16,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:18:16,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 13:18:16,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:16,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:18:16,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-13 13:18:16,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 13:18:16,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:16,784 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:18:16,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:18:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:16,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:16,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:16,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:18:16,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:16,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:18:16,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:16,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:16,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:16,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:16,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:16,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:18:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:16,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:16,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:16,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:18:16,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:16,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 13:18:16,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 13:18:16,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:16,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:18:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:16,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:16,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:16,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:18:16,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:16,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:18:16,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:16,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:16,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:16,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:18:16,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:16,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:18:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:16,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:16,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:16,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:16,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:16,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:18:16,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:16,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:16,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:16,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:18:16,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:16,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:18:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:16,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:16,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:16,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:16,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:16,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:18:16,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:16,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:16,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:16,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:18:16,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:17,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:18:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:17,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:17,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:17,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:17,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:17,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:18:17,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:17,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:17,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:17,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:18:17,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:17,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 13:18:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:17,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:17,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:17,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:18:17,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:17,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:18:17,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:17,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:18:17,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:18:17,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:18:17,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:17,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-13 13:18:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:17,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:17,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:17,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:18:17,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:17,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:18:17,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:17,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:17,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:18:17,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:17,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:17,146 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 13:18:17,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389098702] [2020-10-13 13:18:17,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:18:17,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:18:17,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932756918] [2020-10-13 13:18:17,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:18:17,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:18:17,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:18:17,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:18:17,149 INFO L87 Difference]: Start difference. First operand 2051 states and 3197 transitions. Second operand 10 states. [2020-10-13 13:18:17,490 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:18:21,991 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:18:22,136 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:18:22,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:18:22,554 INFO L93 Difference]: Finished difference Result 6484 states and 10044 transitions. [2020-10-13 13:18:22,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:18:22,554 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 154 [2020-10-13 13:18:22,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:18:22,578 INFO L225 Difference]: With dead ends: 6484 [2020-10-13 13:18:22,578 INFO L226 Difference]: Without dead ends: 4655 [2020-10-13 13:18:22,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:18:22,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4655 states. [2020-10-13 13:18:22,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4655 to 3752. [2020-10-13 13:18:22,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3752 states. [2020-10-13 13:18:22,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3752 states to 3752 states and 5774 transitions. [2020-10-13 13:18:22,920 INFO L78 Accepts]: Start accepts. Automaton has 3752 states and 5774 transitions. Word has length 154 [2020-10-13 13:18:22,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:18:22,921 INFO L479 AbstractCegarLoop]: Abstraction has 3752 states and 5774 transitions. [2020-10-13 13:18:22,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:18:22,921 INFO L276 IsEmpty]: Start isEmpty. Operand 3752 states and 5774 transitions. [2020-10-13 13:18:22,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-13 13:18:22,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:18:22,924 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:18:22,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:18:22,924 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:18:22,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:18:22,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1294177940, now seen corresponding path program 1 times [2020-10-13 13:18:22,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:18:22,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1496764907] [2020-10-13 13:18:22,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:18:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:23,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:23,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:23,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:23,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:23,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:23,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:24,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:24,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:24,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:28,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:28,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 13:18:28,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:18:28,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-13 13:18:28,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:28,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:18:28,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 13:18:28,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 13:18:28,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:28,373 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:18:28,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:18:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:28,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:28,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:28,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:18:28,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:28,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:18:28,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:28,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:28,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:28,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:28,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:28,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:18:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:28,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:28,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:28,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:18:28,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:28,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-13 13:18:28,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:28,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:28,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:28,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-13 13:18:28,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:28,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:18:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:28,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:28,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:28,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:18:28,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:28,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:18:28,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:28,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:28,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:28,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:18:28,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:28,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:18:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:28,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:28,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:28,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:28,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:28,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:18:28,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:28,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:28,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:28,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:18:28,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:28,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:18:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:28,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:28,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:28,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:28,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:28,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:18:28,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:28,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:28,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:28,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:18:28,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:28,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:18:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:28,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:28,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:28,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:28,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:28,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:18:28,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:28,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:18:28,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:18:28,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:18:28,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:28,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 13:18:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:28,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:28,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:28,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:28,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:28,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:18:28,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:28,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:28,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:18:28,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:28,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:28,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-13 13:18:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:28,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:28,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:28,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:18:28,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:28,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:18:28,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:28,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:28,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:18:28,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:28,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:28,795 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 13:18:28,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1496764907] [2020-10-13 13:18:28,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:18:28,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:18:28,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879902220] [2020-10-13 13:18:28,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:18:28,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:18:28,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:18:28,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:18:28,797 INFO L87 Difference]: Start difference. First operand 3752 states and 5774 transitions. Second operand 9 states. [2020-10-13 13:18:29,170 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:18:31,065 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:18:33,194 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:18:33,425 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:18:34,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:18:34,649 INFO L93 Difference]: Finished difference Result 8213 states and 12703 transitions. [2020-10-13 13:18:34,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:18:34,650 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2020-10-13 13:18:34,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:18:34,684 INFO L225 Difference]: With dead ends: 8213 [2020-10-13 13:18:34,684 INFO L226 Difference]: Without dead ends: 6348 [2020-10-13 13:18:34,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:18:34,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6348 states. [2020-10-13 13:18:35,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6348 to 5198. [2020-10-13 13:18:35,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5198 states. [2020-10-13 13:18:35,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 5198 states and 7976 transitions. [2020-10-13 13:18:35,256 INFO L78 Accepts]: Start accepts. Automaton has 5198 states and 7976 transitions. Word has length 157 [2020-10-13 13:18:35,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:18:35,256 INFO L479 AbstractCegarLoop]: Abstraction has 5198 states and 7976 transitions. [2020-10-13 13:18:35,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:18:35,257 INFO L276 IsEmpty]: Start isEmpty. Operand 5198 states and 7976 transitions. [2020-10-13 13:18:35,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-13 13:18:35,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:18:35,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:18:35,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:18:35,259 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:18:35,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:18:35,260 INFO L82 PathProgramCache]: Analyzing trace with hash -811362096, now seen corresponding path program 1 times [2020-10-13 13:18:35,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:18:35,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [497337926] [2020-10-13 13:18:35,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:18:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:35,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:35,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:35,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:35,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:36,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:36,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:36,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:40,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:40,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 13:18:40,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:18:40,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 13:18:40,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:40,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:18:40,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 13:18:40,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 13:18:40,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:40,690 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:18:40,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:18:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:40,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:40,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:40,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:18:40,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:40,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:18:40,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:40,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:40,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:40,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:40,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:40,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:18:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:40,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:40,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:40,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:18:40,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:40,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-13 13:18:40,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:40,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:18:40,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:40,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 13:18:40,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:40,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:18:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:40,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:40,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:40,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:18:40,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:40,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:18:40,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:40,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:40,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:40,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:18:40,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:40,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:18:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:40,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:40,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:40,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:40,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:40,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:18:40,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:40,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:18:40,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:18:40,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:18:40,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:40,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:18:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:41,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:41,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:41,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:41,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:41,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:18:41,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:41,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:18:41,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:18:41,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:18:41,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:41,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:18:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:41,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:41,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:41,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:41,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:41,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:18:41,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:41,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:18:41,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:18:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:18:41,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:41,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 13:18:41,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:41,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:41,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:41,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:41,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:41,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:18:41,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:41,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:18:41,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:18:41,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:18:41,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:41,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-13 13:18:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:41,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:41,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:41,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:18:41,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:41,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:18:41,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:41,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:41,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:18:41,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:18:41,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:41,245 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 13:18:41,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [497337926] [2020-10-13 13:18:41,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:18:41,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-13 13:18:41,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889839290] [2020-10-13 13:18:41,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:18:41,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:18:41,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:18:41,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:18:41,247 INFO L87 Difference]: Start difference. First operand 5198 states and 7976 transitions. Second operand 16 states. [2020-10-13 13:18:41,665 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-13 13:18:43,765 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:18:44,117 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:18:44,471 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:18:44,798 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:18:45,096 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:18:45,373 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:18:45,645 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:18:45,916 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:18:46,442 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-13 13:18:46,972 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:18:47,121 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:18:47,906 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:18:48,250 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:18:48,398 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:18:49,036 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:18:49,271 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-13 13:18:49,730 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:18:50,062 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-13 13:18:50,215 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:18:52,271 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-13 13:18:52,416 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:18:52,723 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:18:52,884 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:18:53,020 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:18:53,160 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:18:53,425 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:18:54,276 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:18:56,031 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:18:56,171 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:18:56,361 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:18:56,650 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:18:57,391 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:18:57,577 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:18:57,726 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:18:58,360 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:18:58,545 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:18:59,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:18:59,864 INFO L93 Difference]: Finished difference Result 40513 states and 62896 transitions. [2020-10-13 13:18:59,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-10-13 13:18:59,865 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 157 [2020-10-13 13:18:59,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:19:00,014 INFO L225 Difference]: With dead ends: 40513 [2020-10-13 13:19:00,015 INFO L226 Difference]: Without dead ends: 35552 [2020-10-13 13:19:00,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1970 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=1174, Invalid=4678, Unknown=0, NotChecked=0, Total=5852 [2020-10-13 13:19:00,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35552 states. [2020-10-13 13:19:01,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35552 to 28862. [2020-10-13 13:19:01,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28862 states. [2020-10-13 13:19:01,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28862 states to 28862 states and 44424 transitions. [2020-10-13 13:19:01,923 INFO L78 Accepts]: Start accepts. Automaton has 28862 states and 44424 transitions. Word has length 157 [2020-10-13 13:19:01,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:19:01,924 INFO L479 AbstractCegarLoop]: Abstraction has 28862 states and 44424 transitions. [2020-10-13 13:19:01,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:19:01,924 INFO L276 IsEmpty]: Start isEmpty. Operand 28862 states and 44424 transitions. [2020-10-13 13:19:01,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-13 13:19:01,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:19:01,926 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:19:01,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:19:01,926 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:19:01,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:19:01,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1915521059, now seen corresponding path program 1 times [2020-10-13 13:19:01,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:19:01,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381406224] [2020-10-13 13:19:01,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:19:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:02,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:02,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:03,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:03,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:03,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:03,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:04,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:04,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:04,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:07,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:07,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 13:19:07,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:19:07,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-13 13:19:07,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:07,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:19:07,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-13 13:19:07,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 13:19:07,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:08,203 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:19:08,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:19:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:08,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:08,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:08,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:19:08,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:08,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:19:08,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:08,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:08,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:08,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:08,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:08,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:19:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:08,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:08,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:08,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:19:08,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:08,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 13:19:08,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:08,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:08,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:08,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-13 13:19:08,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:08,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:19:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:08,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:08,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:08,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:19:08,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:08,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:19:08,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:08,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:08,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:08,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:19:08,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:08,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:19:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:08,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:08,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:08,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:08,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:08,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:19:08,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:08,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:08,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:08,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:19:08,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:08,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:19:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:08,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:08,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:08,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:08,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:08,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:19:08,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:08,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:08,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:08,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:19:08,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:08,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:19:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:08,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:08,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:08,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:08,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:08,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:19:08,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:08,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:08,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:08,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:19:08,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:08,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 13:19:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:08,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:08,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:08,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:19:08,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:08,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:19:08,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:08,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:19:08,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:19:08,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:19:08,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:08,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-13 13:19:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:08,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:08,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:08,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:19:08,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:08,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:19:08,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:08,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:08,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:19:08,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:08,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:08,550 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 13:19:08,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381406224] [2020-10-13 13:19:08,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:19:08,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:19:08,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444373288] [2020-10-13 13:19:08,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:19:08,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:19:08,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:19:08,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:19:08,552 INFO L87 Difference]: Start difference. First operand 28862 states and 44424 transitions. Second operand 9 states. [2020-10-13 13:19:09,015 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:19:10,941 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:19:11,224 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:19:11,493 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:19:13,215 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:19:13,432 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:19:16,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:19:16,136 INFO L93 Difference]: Finished difference Result 68481 states and 105986 transitions. [2020-10-13 13:19:16,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:19:16,137 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-13 13:19:16,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:19:16,352 INFO L225 Difference]: With dead ends: 68481 [2020-10-13 13:19:16,352 INFO L226 Difference]: Without dead ends: 50944 [2020-10-13 13:19:16,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:19:16,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50944 states. [2020-10-13 13:19:18,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50944 to 41849. [2020-10-13 13:19:18,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41849 states. [2020-10-13 13:19:19,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41849 states to 41849 states and 64032 transitions. [2020-10-13 13:19:19,072 INFO L78 Accepts]: Start accepts. Automaton has 41849 states and 64032 transitions. Word has length 158 [2020-10-13 13:19:19,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:19:19,073 INFO L479 AbstractCegarLoop]: Abstraction has 41849 states and 64032 transitions. [2020-10-13 13:19:19,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:19:19,073 INFO L276 IsEmpty]: Start isEmpty. Operand 41849 states and 64032 transitions. [2020-10-13 13:19:19,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-13 13:19:19,075 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:19:19,075 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:19:19,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 13:19:19,076 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:19:19,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:19:19,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1212481901, now seen corresponding path program 1 times [2020-10-13 13:19:19,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:19:19,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2085550392] [2020-10-13 13:19:19,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:19:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:19,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:19,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:19,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:19,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:19,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:19,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:20,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:24,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:24,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 13:19:24,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:19:24,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 13:19:24,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:24,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:19:24,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 13:19:24,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 13:19:24,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:24,468 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:19:24,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:19:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:24,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:24,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:24,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:19:24,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:24,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:19:24,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:24,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:24,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:24,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:24,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:24,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:19:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:24,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:24,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:24,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:19:24,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:24,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 13:19:24,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:19:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:19:24,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:24,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:19:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:24,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:24,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:24,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:19:24,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:24,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:19:24,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:24,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:24,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:24,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:19:24,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:24,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:19:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:24,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:24,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:24,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:24,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:24,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:19:24,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:24,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:19:24,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:19:24,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:19:24,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:24,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:19:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:24,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:24,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:24,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:24,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:24,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:19:24,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:19:24,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:24,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:19:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:24,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:24,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:24,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:24,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:24,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:19:24,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:24,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:24,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:24,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:19:24,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:24,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 13:19:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:24,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:24,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:24,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:24,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:24,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:19:24,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:24,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:24,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:24,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:19:24,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:24,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-13 13:19:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:24,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:24,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:24,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:19:24,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:24,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:19:24,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:19:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:19:24,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:24,831 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 13:19:24,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2085550392] [2020-10-13 13:19:24,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:19:24,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:19:24,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599160800] [2020-10-13 13:19:24,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:19:24,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:19:24,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:19:24,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:19:24,833 INFO L87 Difference]: Start difference. First operand 41849 states and 64032 transitions. Second operand 11 states. [2020-10-13 13:19:25,179 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:19:26,893 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:19:27,844 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:19:28,122 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:19:28,632 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:19:31,079 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-13 13:19:31,420 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:19:32,526 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:19:32,668 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:19:32,804 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:19:34,082 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:19:34,988 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:19:40,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:19:40,710 INFO L93 Difference]: Finished difference Result 153939 states and 236891 transitions. [2020-10-13 13:19:40,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:19:40,714 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 158 [2020-10-13 13:19:40,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:19:41,138 INFO L225 Difference]: With dead ends: 153939 [2020-10-13 13:19:41,139 INFO L226 Difference]: Without dead ends: 112342 [2020-10-13 13:19:41,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 13:19:41,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112342 states. [2020-10-13 13:19:46,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112342 to 92216. [2020-10-13 13:19:46,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92216 states. [2020-10-13 13:19:46,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92216 states to 92216 states and 140597 transitions. [2020-10-13 13:19:46,859 INFO L78 Accepts]: Start accepts. Automaton has 92216 states and 140597 transitions. Word has length 158 [2020-10-13 13:19:46,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:19:46,859 INFO L479 AbstractCegarLoop]: Abstraction has 92216 states and 140597 transitions. [2020-10-13 13:19:46,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:19:46,859 INFO L276 IsEmpty]: Start isEmpty. Operand 92216 states and 140597 transitions. [2020-10-13 13:19:46,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-13 13:19:46,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:19:46,874 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:19:46,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 13:19:46,875 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:19:46,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:19:46,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1473432893, now seen corresponding path program 1 times [2020-10-13 13:19:46,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:19:46,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [499785812] [2020-10-13 13:19:46,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:19:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:46,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:47,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:47,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:47,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:47,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:47,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:47,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:47,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:51,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:51,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-13 13:19:51,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 13:19:51,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-13 13:19:51,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:51,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:19:51,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-13 13:19:51,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 13:19:51,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:52,272 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:19:52,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:19:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:52,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:52,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:52,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:19:52,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:52,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:19:52,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:52,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:52,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:52,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:52,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:52,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:19:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:52,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:52,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:52,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:19:52,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:52,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-13 13:19:52,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:52,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:19:52,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:52,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 13:19:52,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:52,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:19:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:52,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:52,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:52,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:19:52,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:52,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:19:52,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:52,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:52,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:52,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:19:52,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:52,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:19:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:52,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:52,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:52,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:52,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:52,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:19:52,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:52,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:52,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:52,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:19:52,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:52,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:19:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:52,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:52,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:52,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:52,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:52,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:19:52,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:52,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:19:52,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:19:52,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:19:52,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:52,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:19:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:52,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:52,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:52,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:52,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:52,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:19:52,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:52,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:52,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:52,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:19:52,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:52,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 13:19:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:52,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:52,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:52,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:52,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:52,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:19:52,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:52,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:52,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:52,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:19:52,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:52,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-13 13:19:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:52,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:52,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:52,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:19:52,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:52,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:19:52,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:52,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:52,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:19:52,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:19:52,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:52,751 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 13:19:52,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [499785812] [2020-10-13 13:19:52,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:19:52,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:19:52,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630494443] [2020-10-13 13:19:52,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:19:52,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:19:52,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:19:52,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:19:52,753 INFO L87 Difference]: Start difference. First operand 92216 states and 140597 transitions. Second operand 11 states. [2020-10-13 13:19:53,104 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:19:54,963 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:19:55,272 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:19:55,669 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 116 [2020-10-13 13:19:55,944 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:19:56,261 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:19:57,053 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:19:57,225 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:19:57,363 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-13 13:19:57,918 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:19:58,853 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:19:59,213 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-13 13:20:01,669 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:20:01,921 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:20:02,117 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:20:02,423 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 120 [2020-10-13 13:20:17,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:20:17,290 INFO L93 Difference]: Finished difference Result 367929 states and 563831 transitions. [2020-10-13 13:20:17,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:20:17,291 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 159 [2020-10-13 13:20:17,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:20:18,403 INFO L225 Difference]: With dead ends: 367929 [2020-10-13 13:20:18,403 INFO L226 Difference]: Without dead ends: 275965 [2020-10-13 13:20:18,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 13:20:18,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275965 states.