/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 14:01:19,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 14:01:19,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 14:01:19,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 14:01:19,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 14:01:19,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 14:01:19,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 14:01:19,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 14:01:19,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 14:01:19,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 14:01:19,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 14:01:19,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 14:01:19,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 14:01:19,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 14:01:19,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 14:01:19,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 14:01:19,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 14:01:19,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 14:01:19,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 14:01:19,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 14:01:19,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 14:01:19,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 14:01:19,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 14:01:19,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 14:01:19,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 14:01:19,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 14:01:19,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 14:01:19,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 14:01:19,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 14:01:19,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 14:01:19,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 14:01:19,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 14:01:19,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 14:01:19,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 14:01:19,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 14:01:19,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 14:01:19,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 14:01:19,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 14:01:19,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 14:01:19,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 14:01:19,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 14:01:19,949 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 14:01:19,972 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 14:01:19,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 14:01:19,974 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 14:01:19,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 14:01:19,974 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 14:01:19,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 14:01:19,975 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 14:01:19,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 14:01:19,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 14:01:19,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 14:01:19,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 14:01:19,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 14:01:19,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 14:01:19,976 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 14:01:19,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 14:01:19,976 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 14:01:19,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 14:01:19,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 14:01:19,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 14:01:19,977 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 14:01:19,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 14:01:19,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 14:01:19,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 14:01:19,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 14:01:19,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 14:01:19,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 14:01:19,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 14:01:19,979 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 14:01:19,979 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 14:01:19,979 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 14:01:20,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 14:01:20,306 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 14:01:20,309 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 14:01:20,311 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 14:01:20,311 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 14:01:20,312 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-13 14:01:20,374 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3effcc865/907e6b6ff0334f7f838c4c071fb95c29/FLAG6339e4101 [2020-10-13 14:01:21,122 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 14:01:21,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-13 14:01:21,158 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3effcc865/907e6b6ff0334f7f838c4c071fb95c29/FLAG6339e4101 [2020-10-13 14:01:21,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3effcc865/907e6b6ff0334f7f838c4c071fb95c29 [2020-10-13 14:01:21,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 14:01:21,224 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 14:01:21,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 14:01:21,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 14:01:21,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 14:01:21,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:01:21" (1/1) ... [2020-10-13 14:01:21,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b7bdc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:01:21, skipping insertion in model container [2020-10-13 14:01:21,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:01:21" (1/1) ... [2020-10-13 14:01:21,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 14:01:21,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 14:01:22,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 14:01:22,755 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 14:01:23,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 14:01:23,703 INFO L208 MainTranslator]: Completed translation [2020-10-13 14:01:23,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:01:23 WrapperNode [2020-10-13 14:01:23,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 14:01:23,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 14:01:23,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 14:01:23,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 14:01:23,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:01:23" (1/1) ... [2020-10-13 14:01:23,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:01:23" (1/1) ... [2020-10-13 14:01:23,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:01:23" (1/1) ... [2020-10-13 14:01:23,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:01:23" (1/1) ... [2020-10-13 14:01:23,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:01:23" (1/1) ... [2020-10-13 14:01:23,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:01:23" (1/1) ... [2020-10-13 14:01:23,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:01:23" (1/1) ... [2020-10-13 14:01:23,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 14:01:23,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 14:01:23,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 14:01:23,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 14:01:23,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:01:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 14:01:23,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 14:01:23,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 14:01:23,996 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 14:01:23,996 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 14:01:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 14:01:23,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 14:01:23,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-13 14:01:23,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 14:01:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 14:01:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 14:01:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 14:01:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 14:01:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 14:01:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 14:01:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 14:01:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 14:01:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 14:01:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 14:01:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 14:01:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 14:01:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 14:01:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 14:01:26,793 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 14:01:26,794 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 14:01:26,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:01:26 BoogieIcfgContainer [2020-10-13 14:01:26,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 14:01:26,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 14:01:26,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 14:01:26,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 14:01:26,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 02:01:21" (1/3) ... [2020-10-13 14:01:26,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fa6ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:01:26, skipping insertion in model container [2020-10-13 14:01:26,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:01:23" (2/3) ... [2020-10-13 14:01:26,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fa6ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:01:26, skipping insertion in model container [2020-10-13 14:01:26,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:01:26" (3/3) ... [2020-10-13 14:01:26,829 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-13 14:01:26,846 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 14:01:26,869 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-10-13 14:01:26,889 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-13 14:01:26,924 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 14:01:26,924 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 14:01:26,924 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 14:01:26,924 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 14:01:26,925 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 14:01:26,925 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 14:01:26,925 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 14:01:26,925 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 14:01:26,976 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states. [2020-10-13 14:01:27,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-13 14:01:27,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:01:27,020 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:01:27,021 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:01:27,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:01:27,029 INFO L82 PathProgramCache]: Analyzing trace with hash -857825627, now seen corresponding path program 1 times [2020-10-13 14:01:27,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:01:27,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406189633] [2020-10-13 14:01:27,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:01:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:01:28,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:28,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:29,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:29,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:29,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:30,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:30,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:30,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:30,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:30,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:31,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:32,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:32,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:01:32,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-13 14:01:32,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 14:01:32,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-13 14:01:32,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:01:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 14:01:32,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 14:01:32,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 14:01:32,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 14:01:33,853 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 14:01:33,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:01:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:01:33,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:33,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:01:33,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:01:33,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:01:33,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 14:01:33,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:01:33,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:01:33,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:01:33,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:01:33,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:01:34,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:01:34,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406189633] [2020-10-13 14:01:34,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:01:34,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:01:34,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145655372] [2020-10-13 14:01:34,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 14:01:34,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:01:34,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 14:01:34,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:01:34,226 INFO L87 Difference]: Start difference. First operand 918 states. Second operand 5 states. [2020-10-13 14:01:46,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:01:46,469 INFO L93 Difference]: Finished difference Result 2673 states and 4834 transitions. [2020-10-13 14:01:46,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 14:01:46,471 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 304 [2020-10-13 14:01:46,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:01:46,510 INFO L225 Difference]: With dead ends: 2673 [2020-10-13 14:01:46,511 INFO L226 Difference]: Without dead ends: 1798 [2020-10-13 14:01:46,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:01:46,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2020-10-13 14:01:46,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1702. [2020-10-13 14:01:46,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1702 states. [2020-10-13 14:01:46,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 2589 transitions. [2020-10-13 14:01:46,762 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 2589 transitions. Word has length 304 [2020-10-13 14:01:46,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:01:46,766 INFO L479 AbstractCegarLoop]: Abstraction has 1702 states and 2589 transitions. [2020-10-13 14:01:46,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 14:01:46,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 2589 transitions. [2020-10-13 14:01:46,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-10-13 14:01:46,780 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:01:46,780 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:01:46,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 14:01:46,781 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:01:46,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:01:46,783 INFO L82 PathProgramCache]: Analyzing trace with hash 720142676, now seen corresponding path program 1 times [2020-10-13 14:01:46,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:01:46,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539487080] [2020-10-13 14:01:46,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:01:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:01:47,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:47,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:47,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:47,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:48,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:48,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:48,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:48,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:48,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:49,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:49,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:49,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:50,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:50,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:50,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:51,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:01:51,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 312 [2020-10-13 14:01:51,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-13 14:01:51,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-13 14:01:51,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:01:51,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 14:01:51,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 14:01:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-13 14:01:51,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:01:52,746 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 14:01:52,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:01:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:01:52,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:01:52,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:01:52,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:01:52,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:01:52,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 14:01:52,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:01:52,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:01:52,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:01:52,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:01:52,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:01:53,146 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 14:01:53,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [539487080] [2020-10-13 14:01:53,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:01:53,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:01:53,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341524034] [2020-10-13 14:01:53,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 14:01:53,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:01:53,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 14:01:53,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:01:53,156 INFO L87 Difference]: Start difference. First operand 1702 states and 2589 transitions. Second operand 5 states. [2020-10-13 14:02:04,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:02:04,050 INFO L93 Difference]: Finished difference Result 5002 states and 7592 transitions. [2020-10-13 14:02:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 14:02:04,050 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 306 [2020-10-13 14:02:04,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:02:04,071 INFO L225 Difference]: With dead ends: 5002 [2020-10-13 14:02:04,072 INFO L226 Difference]: Without dead ends: 3353 [2020-10-13 14:02:04,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:02:04,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3353 states. [2020-10-13 14:02:04,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3353 to 3261. [2020-10-13 14:02:04,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3261 states. [2020-10-13 14:02:04,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3261 states to 3261 states and 4955 transitions. [2020-10-13 14:02:04,287 INFO L78 Accepts]: Start accepts. Automaton has 3261 states and 4955 transitions. Word has length 306 [2020-10-13 14:02:04,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:02:04,289 INFO L479 AbstractCegarLoop]: Abstraction has 3261 states and 4955 transitions. [2020-10-13 14:02:04,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 14:02:04,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3261 states and 4955 transitions. [2020-10-13 14:02:04,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-13 14:02:04,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:02:04,300 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:02:04,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 14:02:04,300 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:02:04,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:02:04,301 INFO L82 PathProgramCache]: Analyzing trace with hash 489842506, now seen corresponding path program 1 times [2020-10-13 14:02:04,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:02:04,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543284231] [2020-10-13 14:02:04,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:02:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:02:04,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:04,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:04,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:04,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:05,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:05,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:05,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:05,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:05,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:05,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:06,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:06,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:06,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:06,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:09,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:02:09,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-13 14:02:09,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-13 14:02:09,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-13 14:02:09,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:02:09,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:02:09,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 14:02:09,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 14:02:09,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:02:10,061 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 14:02:10,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:02:10,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:02:10,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:10,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:02:10,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:02:10,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:02:10,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 14:02:10,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:02:10,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:02:10,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:02:10,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:02:10,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:02:10,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:02:10,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543284231] [2020-10-13 14:02:10,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:02:10,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 14:02:10,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662150636] [2020-10-13 14:02:10,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 14:02:10,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:02:10,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 14:02:10,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:02:10,205 INFO L87 Difference]: Start difference. First operand 3261 states and 4955 transitions. Second operand 4 states. [2020-10-13 14:02:19,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:02:19,824 INFO L93 Difference]: Finished difference Result 9723 states and 14761 transitions. [2020-10-13 14:02:19,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 14:02:19,827 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 308 [2020-10-13 14:02:19,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:02:19,859 INFO L225 Difference]: With dead ends: 9723 [2020-10-13 14:02:19,859 INFO L226 Difference]: Without dead ends: 6490 [2020-10-13 14:02:19,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:02:19,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6490 states. [2020-10-13 14:02:20,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6490 to 3281. [2020-10-13 14:02:20,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3281 states. [2020-10-13 14:02:20,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3281 states to 3281 states and 4981 transitions. [2020-10-13 14:02:20,095 INFO L78 Accepts]: Start accepts. Automaton has 3281 states and 4981 transitions. Word has length 308 [2020-10-13 14:02:20,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:02:20,096 INFO L479 AbstractCegarLoop]: Abstraction has 3281 states and 4981 transitions. [2020-10-13 14:02:20,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 14:02:20,096 INFO L276 IsEmpty]: Start isEmpty. Operand 3281 states and 4981 transitions. [2020-10-13 14:02:20,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-10-13 14:02:20,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:02:20,108 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:02:20,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 14:02:20,117 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:02:20,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:02:20,118 INFO L82 PathProgramCache]: Analyzing trace with hash 159713670, now seen corresponding path program 1 times [2020-10-13 14:02:20,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:02:20,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [684989752] [2020-10-13 14:02:20,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:02:20,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:02:20,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:20,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:20,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:20,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:21,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:21,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:21,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:21,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:21,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:21,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:21,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:22,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:22,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:23,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:23,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:25,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:02:25,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 316 [2020-10-13 14:02:25,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-13 14:02:25,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-13 14:02:25,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:02:25,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 14:02:25,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 14:02:25,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 14:02:25,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:02:25,935 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 14:02:25,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:02:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:02:25,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:25,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:02:25,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:02:25,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:02:25,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 14:02:25,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:02:25,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:02:25,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:02:25,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:02:25,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:02:26,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:02:26,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [684989752] [2020-10-13 14:02:26,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:02:26,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:02:26,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773136356] [2020-10-13 14:02:26,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 14:02:26,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:02:26,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 14:02:26,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:02:26,118 INFO L87 Difference]: Start difference. First operand 3281 states and 4981 transitions. Second operand 5 states. [2020-10-13 14:02:34,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:02:34,917 INFO L93 Difference]: Finished difference Result 9653 states and 14629 transitions. [2020-10-13 14:02:34,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 14:02:34,918 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 310 [2020-10-13 14:02:34,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:02:34,950 INFO L225 Difference]: With dead ends: 9653 [2020-10-13 14:02:34,950 INFO L226 Difference]: Without dead ends: 6424 [2020-10-13 14:02:34,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:02:35,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6424 states. [2020-10-13 14:02:35,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6424 to 6354. [2020-10-13 14:02:35,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6354 states. [2020-10-13 14:02:35,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6354 states to 6354 states and 9587 transitions. [2020-10-13 14:02:35,343 INFO L78 Accepts]: Start accepts. Automaton has 6354 states and 9587 transitions. Word has length 310 [2020-10-13 14:02:35,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:02:35,344 INFO L479 AbstractCegarLoop]: Abstraction has 6354 states and 9587 transitions. [2020-10-13 14:02:35,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 14:02:35,344 INFO L276 IsEmpty]: Start isEmpty. Operand 6354 states and 9587 transitions. [2020-10-13 14:02:35,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-10-13 14:02:35,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:02:35,359 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:02:35,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 14:02:35,359 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:02:35,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:02:35,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1441858488, now seen corresponding path program 1 times [2020-10-13 14:02:35,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:02:35,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529892086] [2020-10-13 14:02:35,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:02:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:02:35,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:35,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:35,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:35,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:36,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:36,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:36,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:36,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:36,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:36,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:36,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:37,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:37,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:37,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:40,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:02:40,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 316 [2020-10-13 14:02:40,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-13 14:02:40,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-13 14:02:40,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:02:40,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 14:02:40,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-13 14:02:40,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 14:02:40,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:02:41,135 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 14:02:41,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:02:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:02:41,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:41,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:02:41,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:02:41,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:02:41,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 14:02:41,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:02:41,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:02:41,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:02:41,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:02:41,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:02:41,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:02:41,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [529892086] [2020-10-13 14:02:41,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:02:41,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:02:41,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941081170] [2020-10-13 14:02:41,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 14:02:41,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:02:41,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 14:02:41,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:02:41,315 INFO L87 Difference]: Start difference. First operand 6354 states and 9587 transitions. Second operand 5 states. [2020-10-13 14:02:49,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:02:49,041 INFO L93 Difference]: Finished difference Result 17589 states and 26360 transitions. [2020-10-13 14:02:49,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 14:02:49,042 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 310 [2020-10-13 14:02:49,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:02:49,082 INFO L225 Difference]: With dead ends: 17589 [2020-10-13 14:02:49,083 INFO L226 Difference]: Without dead ends: 11793 [2020-10-13 14:02:49,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:02:49,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11793 states. [2020-10-13 14:02:49,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11793 to 6742. [2020-10-13 14:02:49,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6742 states. [2020-10-13 14:02:49,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6742 states to 6742 states and 10249 transitions. [2020-10-13 14:02:49,472 INFO L78 Accepts]: Start accepts. Automaton has 6742 states and 10249 transitions. Word has length 310 [2020-10-13 14:02:49,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:02:49,473 INFO L479 AbstractCegarLoop]: Abstraction has 6742 states and 10249 transitions. [2020-10-13 14:02:49,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 14:02:49,473 INFO L276 IsEmpty]: Start isEmpty. Operand 6742 states and 10249 transitions. [2020-10-13 14:02:49,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-13 14:02:49,491 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:02:49,491 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:02:49,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 14:02:49,491 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:02:49,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:02:49,492 INFO L82 PathProgramCache]: Analyzing trace with hash -2023239939, now seen corresponding path program 1 times [2020-10-13 14:02:49,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:02:49,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [255489572] [2020-10-13 14:02:49,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:02:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:02:49,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:49,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:49,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:49,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:50,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:50,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:50,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:50,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:50,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:50,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:51,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:51,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:51,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:51,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:51,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:51,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:53,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:53,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:53,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:54,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:54,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:02:54,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-13 14:02:54,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-13 14:02:54,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-13 14:02:54,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:02:54,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 14:02:54,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 14:02:54,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 14:02:54,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:02:55,191 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 14:02:55,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:02:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:02:55,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:02:55,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:02:55,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:02:55,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:02:55,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 14:02:55,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:02:55,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:02:55,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:02:55,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:02:55,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:02:55,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:02:55,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [255489572] [2020-10-13 14:02:55,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:02:55,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:02:55,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286579175] [2020-10-13 14:02:55,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 14:02:55,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:02:55,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 14:02:55,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:02:55,301 INFO L87 Difference]: Start difference. First operand 6742 states and 10249 transitions. Second operand 5 states. [2020-10-13 14:03:03,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:03:03,514 INFO L93 Difference]: Finished difference Result 18485 states and 27870 transitions. [2020-10-13 14:03:03,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 14:03:03,515 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 312 [2020-10-13 14:03:03,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:03:03,557 INFO L225 Difference]: With dead ends: 18485 [2020-10-13 14:03:03,558 INFO L226 Difference]: Without dead ends: 12612 [2020-10-13 14:03:03,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:03:03,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12612 states. [2020-10-13 14:03:04,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12612 to 7589. [2020-10-13 14:03:04,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7589 states. [2020-10-13 14:03:04,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7589 states to 7589 states and 11685 transitions. [2020-10-13 14:03:04,125 INFO L78 Accepts]: Start accepts. Automaton has 7589 states and 11685 transitions. Word has length 312 [2020-10-13 14:03:04,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:03:04,126 INFO L479 AbstractCegarLoop]: Abstraction has 7589 states and 11685 transitions. [2020-10-13 14:03:04,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 14:03:04,126 INFO L276 IsEmpty]: Start isEmpty. Operand 7589 states and 11685 transitions. [2020-10-13 14:03:04,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-10-13 14:03:04,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:03:04,140 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:03:04,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 14:03:04,140 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:03:04,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:03:04,141 INFO L82 PathProgramCache]: Analyzing trace with hash -135112507, now seen corresponding path program 1 times [2020-10-13 14:03:04,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:03:04,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198078441] [2020-10-13 14:03:04,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:03:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:03:04,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:04,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:04,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:04,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:04,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:04,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:04,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:05,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:05,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:05,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:05,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:05,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:05,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:05,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:05,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:06,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:06,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:09,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:09,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:09,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:03:09,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-13 14:03:09,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-13 14:03:09,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-13 14:03:09,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:03:09,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 14:03:09,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 14:03:09,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 14:03:09,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:03:09,839 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 14:03:09,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:03:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:03:09,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:09,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:03:09,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:03:09,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:03:09,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 14:03:09,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:03:09,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:03:09,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:03:09,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:03:09,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:03:09,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:03:09,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198078441] [2020-10-13 14:03:09,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:03:09,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:03:09,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357420423] [2020-10-13 14:03:09,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 14:03:09,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:03:09,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 14:03:09,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:03:09,939 INFO L87 Difference]: Start difference. First operand 7589 states and 11685 transitions. Second operand 5 states. [2020-10-13 14:03:18,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:03:18,710 INFO L93 Difference]: Finished difference Result 20253 states and 30842 transitions. [2020-10-13 14:03:18,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 14:03:18,711 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 314 [2020-10-13 14:03:18,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:03:18,745 INFO L225 Difference]: With dead ends: 20253 [2020-10-13 14:03:18,746 INFO L226 Difference]: Without dead ends: 14299 [2020-10-13 14:03:18,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:03:18,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14299 states. [2020-10-13 14:03:19,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14299 to 9255. [2020-10-13 14:03:19,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9255 states. [2020-10-13 14:03:19,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9255 states to 9255 states and 14480 transitions. [2020-10-13 14:03:19,432 INFO L78 Accepts]: Start accepts. Automaton has 9255 states and 14480 transitions. Word has length 314 [2020-10-13 14:03:19,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:03:19,432 INFO L479 AbstractCegarLoop]: Abstraction has 9255 states and 14480 transitions. [2020-10-13 14:03:19,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 14:03:19,432 INFO L276 IsEmpty]: Start isEmpty. Operand 9255 states and 14480 transitions. [2020-10-13 14:03:19,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-10-13 14:03:19,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:03:19,448 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:03:19,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 14:03:19,449 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:03:19,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:03:19,449 INFO L82 PathProgramCache]: Analyzing trace with hash 153363231, now seen corresponding path program 1 times [2020-10-13 14:03:19,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:03:19,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [612986511] [2020-10-13 14:03:19,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:03:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:03:19,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:19,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:19,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:19,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:20,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:20,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:20,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:20,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:20,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:20,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:20,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:20,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:20,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:20,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:21,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:24,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:03:24,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-13 14:03:24,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-13 14:03:24,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-13 14:03:24,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:03:24,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 14:03:24,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 14:03:24,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 14:03:24,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:03:25,203 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 14:03:25,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:03:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:03:25,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:25,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:03:25,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:03:25,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:03:25,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 14:03:25,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:03:25,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:03:25,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:03:25,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:03:25,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:03:25,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:03:25,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [612986511] [2020-10-13 14:03:25,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:03:25,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:03:25,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089229876] [2020-10-13 14:03:25,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 14:03:25,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:03:25,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 14:03:25,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:03:25,299 INFO L87 Difference]: Start difference. First operand 9255 states and 14480 transitions. Second operand 5 states. [2020-10-13 14:03:31,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:03:31,350 INFO L93 Difference]: Finished difference Result 14278 states and 21897 transitions. [2020-10-13 14:03:31,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 14:03:31,351 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 316 [2020-10-13 14:03:31,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:03:31,366 INFO L225 Difference]: With dead ends: 14278 [2020-10-13 14:03:31,367 INFO L226 Difference]: Without dead ends: 8130 [2020-10-13 14:03:31,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:03:31,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8130 states. [2020-10-13 14:03:31,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8130 to 8128. [2020-10-13 14:03:31,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8128 states. [2020-10-13 14:03:31,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8128 states to 8128 states and 12694 transitions. [2020-10-13 14:03:31,968 INFO L78 Accepts]: Start accepts. Automaton has 8128 states and 12694 transitions. Word has length 316 [2020-10-13 14:03:31,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:03:31,969 INFO L479 AbstractCegarLoop]: Abstraction has 8128 states and 12694 transitions. [2020-10-13 14:03:31,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 14:03:31,969 INFO L276 IsEmpty]: Start isEmpty. Operand 8128 states and 12694 transitions. [2020-10-13 14:03:31,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-10-13 14:03:31,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:03:31,978 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:03:31,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 14:03:31,979 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:03:31,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:03:31,979 INFO L82 PathProgramCache]: Analyzing trace with hash -365651008, now seen corresponding path program 1 times [2020-10-13 14:03:31,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:03:31,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1644297276] [2020-10-13 14:03:31,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:03:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:03:32,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:32,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:32,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:32,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:32,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:32,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:32,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:32,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:32,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:32,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:33,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:33,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:33,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:37,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:03:37,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 323 [2020-10-13 14:03:37,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:03:37,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-13 14:03:37,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:03:37,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:03:37,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 14:03:37,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 14:03:37,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:03:37,619 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 14:03:37,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:03:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:03:37,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:37,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:03:37,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:03:37,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:03:37,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 14:03:37,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:03:37,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:03:37,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:03:37,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:03:37,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:03:37,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:03:37,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1644297276] [2020-10-13 14:03:37,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:03:37,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 14:03:37,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579262474] [2020-10-13 14:03:37,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 14:03:37,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:03:37,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 14:03:37,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:03:37,733 INFO L87 Difference]: Start difference. First operand 8128 states and 12694 transitions. Second operand 4 states. [2020-10-13 14:03:48,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:03:48,533 INFO L93 Difference]: Finished difference Result 20148 states and 30807 transitions. [2020-10-13 14:03:48,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 14:03:48,534 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 317 [2020-10-13 14:03:48,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:03:48,558 INFO L225 Difference]: With dead ends: 20148 [2020-10-13 14:03:48,559 INFO L226 Difference]: Without dead ends: 14595 [2020-10-13 14:03:48,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:03:48,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14595 states. [2020-10-13 14:03:49,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14595 to 14338. [2020-10-13 14:03:49,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14338 states. [2020-10-13 14:03:49,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14338 states to 14338 states and 22044 transitions. [2020-10-13 14:03:49,443 INFO L78 Accepts]: Start accepts. Automaton has 14338 states and 22044 transitions. Word has length 317 [2020-10-13 14:03:49,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:03:49,444 INFO L479 AbstractCegarLoop]: Abstraction has 14338 states and 22044 transitions. [2020-10-13 14:03:49,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 14:03:49,444 INFO L276 IsEmpty]: Start isEmpty. Operand 14338 states and 22044 transitions. [2020-10-13 14:03:49,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-13 14:03:49,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:03:49,463 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:03:49,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 14:03:49,464 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:03:49,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:03:49,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1353055914, now seen corresponding path program 1 times [2020-10-13 14:03:49,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:03:49,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246099192] [2020-10-13 14:03:49,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:03:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:03:49,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:49,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:49,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:49,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:49,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:49,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:50,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:50,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:50,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:50,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:50,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:50,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:50,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:51,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:51,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:54,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:03:54,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 324 [2020-10-13 14:03:54,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-13 14:03:54,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 14:03:54,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:03:54,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:03:54,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 112 [2020-10-13 14:03:54,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 14:03:54,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:03:55,068 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 14:03:55,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:03:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:03:55,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:03:55,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:03:55,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:03:55,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:03:55,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 14:03:55,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:03:55,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:03:55,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:03:55,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:03:55,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:03:55,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:03:55,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246099192] [2020-10-13 14:03:55,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:03:55,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 14:03:55,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395059079] [2020-10-13 14:03:55,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 14:03:55,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:03:55,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 14:03:55,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:03:55,151 INFO L87 Difference]: Start difference. First operand 14338 states and 22044 transitions. Second operand 4 states. [2020-10-13 14:04:02,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:04:02,198 INFO L93 Difference]: Finished difference Result 30273 states and 45580 transitions. [2020-10-13 14:04:02,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 14:04:02,198 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 318 [2020-10-13 14:04:02,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:04:02,224 INFO L225 Difference]: With dead ends: 30273 [2020-10-13 14:04:02,224 INFO L226 Difference]: Without dead ends: 22649 [2020-10-13 14:04:02,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:04:02,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22649 states. [2020-10-13 14:04:03,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22649 to 22467. [2020-10-13 14:04:03,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22467 states. [2020-10-13 14:04:03,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22467 states to 22467 states and 33985 transitions. [2020-10-13 14:04:03,703 INFO L78 Accepts]: Start accepts. Automaton has 22467 states and 33985 transitions. Word has length 318 [2020-10-13 14:04:03,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:04:03,703 INFO L479 AbstractCegarLoop]: Abstraction has 22467 states and 33985 transitions. [2020-10-13 14:04:03,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 14:04:03,704 INFO L276 IsEmpty]: Start isEmpty. Operand 22467 states and 33985 transitions. [2020-10-13 14:04:03,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-13 14:04:03,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:04:03,727 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:04:03,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 14:04:03,728 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:04:03,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:04:03,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1617054735, now seen corresponding path program 1 times [2020-10-13 14:04:03,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:04:03,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1326850074] [2020-10-13 14:04:03,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:04:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:04:03,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:03,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:03,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:03,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:04,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:04,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:04,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:04,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:04,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:04,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:04,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:04,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:04,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:04,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:08,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:08,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:04:08,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 324 [2020-10-13 14:04:08,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-13 14:04:08,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-13 14:04:08,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:04:08,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:04:08,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 14:04:08,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-13 14:04:08,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:04:09,372 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 14:04:09,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:04:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:04:09,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:09,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:04:09,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:04:09,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:04:09,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 14:04:09,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:04:09,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:04:09,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:04:09,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:04:09,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:04:09,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:04:09,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1326850074] [2020-10-13 14:04:09,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:04:09,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 14:04:09,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343987814] [2020-10-13 14:04:09,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 14:04:09,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:04:09,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 14:04:09,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:04:09,488 INFO L87 Difference]: Start difference. First operand 22467 states and 33985 transitions. Second operand 4 states. [2020-10-13 14:04:23,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:04:23,037 INFO L93 Difference]: Finished difference Result 57563 states and 86073 transitions. [2020-10-13 14:04:23,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 14:04:23,038 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 318 [2020-10-13 14:04:23,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:04:23,083 INFO L225 Difference]: With dead ends: 57563 [2020-10-13 14:04:23,084 INFO L226 Difference]: Without dead ends: 38799 [2020-10-13 14:04:23,109 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:04:23,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38799 states. [2020-10-13 14:04:25,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38799 to 38388. [2020-10-13 14:04:25,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38388 states. [2020-10-13 14:04:25,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38388 states to 38388 states and 57426 transitions. [2020-10-13 14:04:25,299 INFO L78 Accepts]: Start accepts. Automaton has 38388 states and 57426 transitions. Word has length 318 [2020-10-13 14:04:25,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:04:25,299 INFO L479 AbstractCegarLoop]: Abstraction has 38388 states and 57426 transitions. [2020-10-13 14:04:25,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 14:04:25,300 INFO L276 IsEmpty]: Start isEmpty. Operand 38388 states and 57426 transitions. [2020-10-13 14:04:25,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2020-10-13 14:04:25,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:04:25,330 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:04:25,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 14:04:25,331 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:04:25,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:04:25,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1953463480, now seen corresponding path program 1 times [2020-10-13 14:04:25,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:04:25,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15375042] [2020-10-13 14:04:25,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:04:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:04:25,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:25,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:25,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:25,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:25,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:25,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:26,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:26,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:26,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:26,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:26,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:26,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:26,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:26,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:29,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:29,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:30,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:30,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:04:30,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-13 14:04:30,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-13 14:04:30,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-13 14:04:30,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:04:30,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:04:30,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:04:30,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-13 14:04:30,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:04:31,015 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 14:04:31,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:04:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:04:31,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:31,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:04:31,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:04:31,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:04:31,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 14:04:31,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:04:31,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:04:31,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:04:31,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:04:31,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:04:31,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:04:31,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15375042] [2020-10-13 14:04:31,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:04:31,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:04:31,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754499633] [2020-10-13 14:04:31,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:04:31,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:04:31,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:04:31,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:04:31,145 INFO L87 Difference]: Start difference. First operand 38388 states and 57426 transitions. Second operand 6 states. [2020-10-13 14:04:31,739 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2020-10-13 14:04:40,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:04:40,943 INFO L93 Difference]: Finished difference Result 74991 states and 112138 transitions. [2020-10-13 14:04:40,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:04:40,944 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 319 [2020-10-13 14:04:40,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:04:40,997 INFO L225 Difference]: With dead ends: 74991 [2020-10-13 14:04:40,997 INFO L226 Difference]: Without dead ends: 47754 [2020-10-13 14:04:41,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 14:04:41,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47754 states. [2020-10-13 14:04:43,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47754 to 47700. [2020-10-13 14:04:43,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47700 states. [2020-10-13 14:04:44,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47700 states to 47700 states and 72086 transitions. [2020-10-13 14:04:44,017 INFO L78 Accepts]: Start accepts. Automaton has 47700 states and 72086 transitions. Word has length 319 [2020-10-13 14:04:44,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:04:44,017 INFO L479 AbstractCegarLoop]: Abstraction has 47700 states and 72086 transitions. [2020-10-13 14:04:44,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:04:44,017 INFO L276 IsEmpty]: Start isEmpty. Operand 47700 states and 72086 transitions. [2020-10-13 14:04:44,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2020-10-13 14:04:44,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:04:44,055 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:04:44,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 14:04:44,055 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:04:44,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:04:44,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1621978814, now seen corresponding path program 1 times [2020-10-13 14:04:44,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:04:44,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025728879] [2020-10-13 14:04:44,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:04:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:04:44,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:44,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:44,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:44,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:44,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:44,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:44,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:44,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:46,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:46,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:46,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:46,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:46,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:46,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:49,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:04:49,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-13 14:04:49,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-13 14:04:49,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-13 14:04:49,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:04:49,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 14:04:49,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 14:04:49,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-13 14:04:49,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:04:49,747 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 14:04:49,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:04:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:04:49,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:04:49,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:04:49,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:04:49,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:04:49,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 14:04:49,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:04:49,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:04:49,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:04:49,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:04:49,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:04:49,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:04:49,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025728879] [2020-10-13 14:04:49,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:04:49,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:04:49,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33963270] [2020-10-13 14:04:49,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 14:04:49,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:04:49,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 14:04:49,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:04:49,919 INFO L87 Difference]: Start difference. First operand 47700 states and 72086 transitions. Second operand 5 states. [2020-10-13 14:05:05,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:05:05,182 INFO L93 Difference]: Finished difference Result 140065 states and 211215 transitions. [2020-10-13 14:05:05,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 14:05:05,183 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 319 [2020-10-13 14:05:05,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:05:05,290 INFO L225 Difference]: With dead ends: 140065 [2020-10-13 14:05:05,290 INFO L226 Difference]: Without dead ends: 92941 [2020-10-13 14:05:05,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:05:05,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92941 states.