/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:55:52,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:55:52,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:55:52,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:55:52,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:55:52,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:55:52,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:55:52,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:55:52,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:55:52,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:55:52,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:55:52,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:55:52,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:55:52,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:55:52,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:55:52,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:55:52,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:55:52,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:55:52,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:55:52,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:55:52,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:55:52,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:55:52,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:55:52,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:55:52,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:55:52,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:55:52,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:55:52,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:55:52,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:55:52,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:55:52,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:55:52,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:55:52,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:55:52,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:55:52,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:55:52,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:55:52,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:55:52,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:55:52,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:55:52,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:55:52,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:55:52,912 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 07:55:52,936 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:55:52,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:55:52,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:55:52,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:55:52,938 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:55:52,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:55:52,939 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:55:52,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:55:52,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:55:52,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:55:52,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:55:52,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:55:52,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:55:52,940 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:55:52,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:55:52,940 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:55:52,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:55:52,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:55:52,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:55:52,941 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:55:52,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:55:52,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:55:52,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:55:52,942 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:55:52,942 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:55:52,942 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:55:52,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:55:52,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:55:52,943 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:55:52,943 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:55:53,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:55:53,275 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:55:53,279 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:55:53,281 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:55:53,281 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:55:53,282 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c [2020-10-14 07:55:53,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8b7a9710/9fdd2ddc752c4efbbadc5538ad103215/FLAGad40cc50d [2020-10-14 07:55:53,825 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:55:53,826 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c [2020-10-14 07:55:53,838 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8b7a9710/9fdd2ddc752c4efbbadc5538ad103215/FLAGad40cc50d [2020-10-14 07:55:54,249 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8b7a9710/9fdd2ddc752c4efbbadc5538ad103215 [2020-10-14 07:55:54,259 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:55:54,261 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:55:54,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:55:54,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:55:54,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:55:54,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:55:54" (1/1) ... [2020-10-14 07:55:54,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e399bb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:54, skipping insertion in model container [2020-10-14 07:55:54,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:55:54" (1/1) ... [2020-10-14 07:55:54,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:55:54,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:55:54,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:55:54,679 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:55:54,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:55:54,877 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:55:54,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:54 WrapperNode [2020-10-14 07:55:54,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:55:54,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:55:54,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:55:54,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:55:54,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:54" (1/1) ... [2020-10-14 07:55:54,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:54" (1/1) ... [2020-10-14 07:55:54,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:54" (1/1) ... [2020-10-14 07:55:54,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:54" (1/1) ... [2020-10-14 07:55:54,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:54" (1/1) ... [2020-10-14 07:55:54,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:54" (1/1) ... [2020-10-14 07:55:54,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:54" (1/1) ... [2020-10-14 07:55:54,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:55:54,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:55:54,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:55:54,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:55:54,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:54" (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 [2020-10-14 07:55:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:55:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:55:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 07:55:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 07:55:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 07:55:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 07:55:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-14 07:55:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-14 07:55:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-14 07:55:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 07:55:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 07:55:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:55:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 07:55:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:55:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 07:55:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 07:55:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 07:55:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 07:55:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 07:55:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 07:55:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 07:55:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 07:55:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 07:55:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 07:55:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 07:55:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-14 07:55:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-14 07:55:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 07:55:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 07:55:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:55:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:55:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:55:55,729 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:55:55,729 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 07:55:55,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:55:55 BoogieIcfgContainer [2020-10-14 07:55:55,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:55:55,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:55:55,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:55:55,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:55:55,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:55:54" (1/3) ... [2020-10-14 07:55:55,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ffb25f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:55:55, skipping insertion in model container [2020-10-14 07:55:55,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:55:54" (2/3) ... [2020-10-14 07:55:55,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ffb25f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:55:55, skipping insertion in model container [2020-10-14 07:55:55,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:55:55" (3/3) ... [2020-10-14 07:55:55,745 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c [2020-10-14 07:55:55,758 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:55:55,767 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:55:55,784 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:55:55,816 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:55:55,816 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:55:55,817 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:55:55,817 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:55:55,817 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:55:55,817 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:55:55,818 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:55:55,818 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:55:55,843 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2020-10-14 07:55:55,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-14 07:55:55,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:55,856 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] [2020-10-14 07:55:55,857 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:55,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:55,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1916076877, now seen corresponding path program 1 times [2020-10-14 07:55:55,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:55,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [575410469] [2020-10-14 07:55:55,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:56,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:56,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:56,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-14 07:55:56,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:56,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 464 [2020-10-14 07:55:56,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:56,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:56,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:56,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 07:55:56,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:56,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 07:55:56,864 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 07:55:56,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:56,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:56,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:56,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:56,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:56,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 07:55:56,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:56,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:56,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:56,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:56,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:56,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:56,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:55:57,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:55:57,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:57,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:57,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:57,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 07:55:57,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 07:55:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:57,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:57,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:55:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:57,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:57,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 07:55:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:57,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:55:57,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:57,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:57,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:57,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 07:55:57,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 07:55:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:57,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 07:55:57,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:57,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:57,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:57,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 07:55:57,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 07:55:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:57,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:55:57,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:57,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:57,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:57,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:55:57,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 07:55:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:57,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:55:57,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:57,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:57,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:57,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:57,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 07:55:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:57,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 07:55:57,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:57,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:57,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:57,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 07:55:57,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 07:55:57,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:57,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:55:57,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:57,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:57,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:57,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:57,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:55:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:55:57,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:57,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:57,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:55:57,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:57,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:57,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:55:57,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [575410469] [2020-10-14 07:55:57,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:55:57,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:55:57,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533993471] [2020-10-14 07:55:57,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:55:57,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:57,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:55:57,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:55:57,478 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 9 states. [2020-10-14 07:55:58,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:58,873 INFO L93 Difference]: Finished difference Result 245 states and 361 transitions. [2020-10-14 07:55:58,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 07:55:58,875 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 74 [2020-10-14 07:55:58,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:58,888 INFO L225 Difference]: With dead ends: 245 [2020-10-14 07:55:58,888 INFO L226 Difference]: Without dead ends: 145 [2020-10-14 07:55:58,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:55:58,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-14 07:55:58,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-10-14 07:55:58,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-14 07:55:58,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 220 transitions. [2020-10-14 07:55:58,949 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 220 transitions. Word has length 74 [2020-10-14 07:55:58,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:58,950 INFO L479 AbstractCegarLoop]: Abstraction has 145 states and 220 transitions. [2020-10-14 07:55:58,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:55:58,950 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 220 transitions. [2020-10-14 07:55:58,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-14 07:55:58,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:58,954 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] [2020-10-14 07:55:58,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:55:58,954 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:58,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:58,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1355377099, now seen corresponding path program 1 times [2020-10-14 07:55:58,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:58,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1735890510] [2020-10-14 07:55:58,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:59,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:59,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:59,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-14 07:55:59,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:59,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 851 [2020-10-14 07:55:59,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:59,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:59,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:55:59,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 07:55:59,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:59,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 07:56:00,066 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 07:56:00,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:00,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:56:00,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:00,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:00,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:00,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:00,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:56:00,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:56:00,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:00,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:00,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:00,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:00,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 07:56:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:00,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:56:00,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:00,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:56:00,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:00,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:56:00,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 07:56:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:00,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:56:00,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:00,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:00,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:00,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:00,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 07:56:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:00,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:56:00,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:00,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:00,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:00,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:00,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 07:56:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:00,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:56:00,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:00,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:00,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:00,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:00,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 07:56:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:00,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:00,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:00,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:00,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 07:56:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:00,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:56:00,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:00,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:00,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:00,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:00,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 07:56:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:00,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:56:00,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:00,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:00,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:00,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:00,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:56:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:00,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:56:00,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:00,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:00,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:00,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:00,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:00,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:56:00,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:00,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:00,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:56:00,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1735890510] [2020-10-14 07:56:00,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:56:00,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-14 07:56:00,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254858829] [2020-10-14 07:56:00,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 07:56:00,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:00,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 07:56:00,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:56:00,487 INFO L87 Difference]: Start difference. First operand 145 states and 220 transitions. Second operand 15 states. [2020-10-14 07:56:00,671 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-14 07:56:00,830 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-14 07:56:01,089 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:56:01,245 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-14 07:56:03,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:56:03,136 INFO L93 Difference]: Finished difference Result 250 states and 369 transitions. [2020-10-14 07:56:03,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:56:03,137 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 74 [2020-10-14 07:56:03,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:56:03,145 INFO L225 Difference]: With dead ends: 250 [2020-10-14 07:56:03,145 INFO L226 Difference]: Without dead ends: 157 [2020-10-14 07:56:03,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2020-10-14 07:56:03,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-14 07:56:03,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 145. [2020-10-14 07:56:03,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-14 07:56:03,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 180 transitions. [2020-10-14 07:56:03,201 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 180 transitions. Word has length 74 [2020-10-14 07:56:03,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:03,201 INFO L479 AbstractCegarLoop]: Abstraction has 145 states and 180 transitions. [2020-10-14 07:56:03,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 07:56:03,201 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 180 transitions. [2020-10-14 07:56:03,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-14 07:56:03,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:03,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:56:03,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:56:03,217 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:03,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:03,218 INFO L82 PathProgramCache]: Analyzing trace with hash 264536888, now seen corresponding path program 1 times [2020-10-14 07:56:03,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:03,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117779483] [2020-10-14 07:56:03,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:03,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:03,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:06,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:06,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 07:56:06,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:56:06,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3257 [2020-10-14 07:56:06,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:06,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:06,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:06,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 07:56:06,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 07:56:06,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:06,742 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 07:56:06,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:06,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:06,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:06,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:06,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:06,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:56:06,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:06,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:06,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:06,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:06,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:06,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:06,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:06,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:06,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:06,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:56:06,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:06,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 07:56:06,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:06,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:56:06,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:06,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 07:56:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:06,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:06,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:06,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:06,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:06,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:56:06,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:06,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:06,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:06,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:06,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:06,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:06,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 07:56:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:06,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:06,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:06,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:06,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:06,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:56:06,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:06,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:06,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:06,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:06,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:06,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:06,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:56:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:06,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:06,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:06,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:06,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:06,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:56:06,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:06,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:06,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:06,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:06,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:06,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:06,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:56:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:06,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:06,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:06,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:06,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:06,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:56:06,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:06,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:06,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:06,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:06,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:06,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:07,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:56:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:07,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:07,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:07,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:07,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:07,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:56:07,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:07,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:07,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:07,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:07,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:07,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:07,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:56:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:07,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:07,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:07,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:07,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:07,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:56:07,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:07,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:07,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:07,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:07,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:07,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:07,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 07:56:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:07,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:07,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:07,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:07,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:07,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:56:07,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:07,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:07,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:07,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:07,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:07,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:07,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:56:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:07,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:07,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:07,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:56:07,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:07,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:07,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:07,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:07,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:07,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:56:07,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:07,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:07,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:56:07,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117779483] [2020-10-14 07:56:07,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:56:07,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 07:56:07,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192529865] [2020-10-14 07:56:07,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 07:56:07,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:07,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 07:56:07,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:56:07,138 INFO L87 Difference]: Start difference. First operand 145 states and 180 transitions. Second operand 12 states. [2020-10-14 07:56:07,334 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-14 07:56:09,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:56:09,459 INFO L93 Difference]: Finished difference Result 313 states and 416 transitions. [2020-10-14 07:56:09,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 07:56:09,459 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 113 [2020-10-14 07:56:09,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:56:09,464 INFO L225 Difference]: With dead ends: 313 [2020-10-14 07:56:09,464 INFO L226 Difference]: Without dead ends: 226 [2020-10-14 07:56:09,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-14 07:56:09,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-14 07:56:09,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 224. [2020-10-14 07:56:09,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-14 07:56:09,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 291 transitions. [2020-10-14 07:56:09,491 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 291 transitions. Word has length 113 [2020-10-14 07:56:09,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:09,492 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 291 transitions. [2020-10-14 07:56:09,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 07:56:09,492 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 291 transitions. [2020-10-14 07:56:09,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-14 07:56:09,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:09,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:56:09,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:56:09,496 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:09,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:09,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1242071938, now seen corresponding path program 1 times [2020-10-14 07:56:09,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:09,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832697022] [2020-10-14 07:56:09,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:09,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:10,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:10,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 07:56:10,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:10,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1431 [2020-10-14 07:56:10,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:10,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:10,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:56:10,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 07:56:10,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 07:56:10,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:11,232 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 07:56:11,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:11,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:11,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:11,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:11,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:11,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:56:11,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:11,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:11,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:11,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:11,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:11,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:56:11,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:11,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:11,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:11,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:56:11,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:11,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 07:56:11,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:11,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:11,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:56:11,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:11,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:56:11,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:11,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 07:56:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:11,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:11,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:11,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:11,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:11,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:11,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:11,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:11,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:11,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:11,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:11,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:11,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 07:56:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:11,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:11,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:11,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:11,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:11,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 07:56:11,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:11,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:11,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:11,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:11,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:11,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:11,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:56:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:11,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:11,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:11,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:11,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:11,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 07:56:11,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:11,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:11,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:11,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:11,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:11,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:11,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:56:11,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:11,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:11,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:11,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:11,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:11,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 07:56:11,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:11,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:11,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:11,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:56:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:11,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:11,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:11,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:11,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:11,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:56:11,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:11,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:11,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:11,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:11,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:11,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:11,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:56:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:11,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:11,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:11,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:11,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:11,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:56:11,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:11,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:11,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:11,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:11,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:11,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:11,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 07:56:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:11,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:11,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:11,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:11,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:11,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:56:11,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:11,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:11,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:11,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:11,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:11,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:11,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:56:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:11,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:11,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:11,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:56:11,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:11,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:56:11,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:11,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:11,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:11,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:56:11,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:56:11,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:11,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:56:11,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1832697022] [2020-10-14 07:56:11,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:56:11,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-14 07:56:11,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133047687] [2020-10-14 07:56:11,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 07:56:11,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:11,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 07:56:11,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2020-10-14 07:56:11,920 INFO L87 Difference]: Start difference. First operand 224 states and 291 transitions. Second operand 22 states. [2020-10-14 07:56:12,344 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-14 07:56:12,523 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-14 07:56:12,701 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-14 07:56:12,863 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-14 07:56:13,029 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-14 07:56:13,204 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-14 07:56:13,510 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-14 07:56:13,820 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-14 07:56:14,439 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:56:14,656 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-14 07:56:14,820 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-14 07:56:15,354 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-14 07:56:16,385 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-14 07:56:16,941 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-14 07:56:17,435 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-14 07:56:17,980 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-14 07:56:18,332 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 152 [2020-10-14 07:56:18,772 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-14 07:56:19,219 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 150 [2020-10-14 07:56:19,843 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-14 07:56:21,211 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2020-10-14 07:56:22,434 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-14 07:56:22,637 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-14 07:56:22,823 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-10-14 07:56:24,211 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-14 07:56:24,410 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-14 07:56:24,606 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-14 07:56:25,827 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-14 07:56:26,036 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-14 07:56:26,236 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-14 07:56:27,497 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-14 07:56:27,699 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-14 07:56:27,896 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-14 07:56:29,018 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-14 07:56:29,220 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-14 07:56:29,438 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-14 07:56:30,075 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2020-10-14 07:56:30,367 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-14 07:56:30,880 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 148 [2020-10-14 07:56:31,229 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-14 07:56:32,014 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-14 07:56:32,389 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-14 07:56:32,757 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-14 07:56:33,082 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-14 07:56:33,343 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-14 07:56:33,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:56:33,712 INFO L93 Difference]: Finished difference Result 2497 states and 3549 transitions. [2020-10-14 07:56:33,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2020-10-14 07:56:33,713 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 113 [2020-10-14 07:56:33,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:56:33,735 INFO L225 Difference]: With dead ends: 2497 [2020-10-14 07:56:33,735 INFO L226 Difference]: Without dead ends: 2331 [2020-10-14 07:56:33,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7524 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=3357, Invalid=16949, Unknown=0, NotChecked=0, Total=20306 [2020-10-14 07:56:33,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2020-10-14 07:56:33,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 2116. [2020-10-14 07:56:33,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2116 states. [2020-10-14 07:56:33,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2116 states to 2116 states and 3020 transitions. [2020-10-14 07:56:33,997 INFO L78 Accepts]: Start accepts. Automaton has 2116 states and 3020 transitions. Word has length 113 [2020-10-14 07:56:33,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:33,998 INFO L479 AbstractCegarLoop]: Abstraction has 2116 states and 3020 transitions. [2020-10-14 07:56:33,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 07:56:33,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2116 states and 3020 transitions. [2020-10-14 07:56:34,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-14 07:56:34,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:34,001 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:56:34,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:56:34,002 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:34,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:34,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1574539802, now seen corresponding path program 1 times [2020-10-14 07:56:34,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:34,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [504460872] [2020-10-14 07:56:34,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:34,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:35,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:35,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 07:56:35,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:35,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1371 [2020-10-14 07:56:35,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:35,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:35,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:56:35,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 07:56:35,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 07:56:35,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:35,612 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 07:56:35,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:35,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:35,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:35,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:35,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:35,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:56:35,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:35,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:35,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:35,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:35,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:35,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:35,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:35,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:56:35,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:35,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 07:56:35,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:35,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:35,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:56:35,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:35,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:56:35,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:35,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 07:56:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:35,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:35,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:35,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:35,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:35,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:35,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:35,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:35,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:35,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:35,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:35,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:35,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 07:56:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:35,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:35,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:35,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:35,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:35,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 07:56:35,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:35,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:35,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:35,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:35,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:35,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:35,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:56:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:35,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:35,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:35,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:35,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:35,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:56:35,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:35,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:35,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:35,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:35,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:35,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:35,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:56:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:35,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:35,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:35,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:35,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:35,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:56:35,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:35,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:35,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:35,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:35,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:35,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:36,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:56:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:36,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:36,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:36,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:36,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:36,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:56:36,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:36,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:36,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:36,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:36,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:36,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:36,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:56:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:36,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:36,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:36,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:36,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:36,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:56:36,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:36,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:36,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:36,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:36,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:36,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:36,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 07:56:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:36,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:36,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:36,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:36,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:36,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:56:36,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:36,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:36,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:36,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:36,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:36,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:36,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:56:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:36,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:36,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:36,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:56:36,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:36,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:56:36,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:36,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:36,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:36,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:56:36,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:56:36,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:36,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:56:36,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [504460872] [2020-10-14 07:56:36,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:56:36,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-14 07:56:36,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280163168] [2020-10-14 07:56:36,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 07:56:36,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:36,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 07:56:36,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2020-10-14 07:56:36,289 INFO L87 Difference]: Start difference. First operand 2116 states and 3020 transitions. Second operand 22 states. [2020-10-14 07:56:36,549 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-14 07:56:36,743 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-14 07:56:36,922 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:56:37,131 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-14 07:56:37,351 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-14 07:56:37,579 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 07:56:37,905 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-14 07:56:38,255 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-14 07:56:38,416 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-14 07:56:39,137 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-14 07:56:39,289 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-14 07:56:39,838 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-14 07:56:40,166 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-14 07:56:40,983 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-14 07:56:41,174 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 07:56:41,733 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-14 07:56:42,627 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-14 07:56:42,841 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 07:56:43,378 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-14 07:56:43,610 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-14 07:56:44,872 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 07:56:46,313 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-14 07:56:46,811 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-14 07:56:47,808 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-14 07:56:47,964 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-14 07:56:49,312 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-14 07:56:49,457 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-14 07:56:51,061 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-14 07:56:51,209 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-14 07:56:51,350 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-14 07:56:52,837 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-14 07:56:52,979 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-14 07:56:53,820 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-14 07:56:54,175 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-14 07:56:56,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:56:56,309 INFO L93 Difference]: Finished difference Result 5726 states and 8271 transitions. [2020-10-14 07:56:56,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2020-10-14 07:56:56,311 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 115 [2020-10-14 07:56:56,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:56:56,333 INFO L225 Difference]: With dead ends: 5726 [2020-10-14 07:56:56,333 INFO L226 Difference]: Without dead ends: 3668 [2020-10-14 07:56:56,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7300 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=3381, Invalid=16359, Unknown=0, NotChecked=0, Total=19740 [2020-10-14 07:56:56,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3668 states. [2020-10-14 07:56:56,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3668 to 3646. [2020-10-14 07:56:56,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3646 states. [2020-10-14 07:56:56,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 5254 transitions. [2020-10-14 07:56:56,678 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 5254 transitions. Word has length 115 [2020-10-14 07:56:56,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:56,679 INFO L479 AbstractCegarLoop]: Abstraction has 3646 states and 5254 transitions. [2020-10-14 07:56:56,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 07:56:56,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 5254 transitions. [2020-10-14 07:56:56,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-14 07:56:56,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:56,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:56:56,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:56:56,683 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:56,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:56,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1432725038, now seen corresponding path program 1 times [2020-10-14 07:56:56,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:56,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38093522] [2020-10-14 07:56:56,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:56,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:56,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:57,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 07:56:57,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:56:57,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 671 [2020-10-14 07:56:57,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:57,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:57,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:57,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-10-14 07:56:57,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:56:57,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:57,603 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 07:56:57,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:57,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:57,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:57,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:57,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:56:57,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:57,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:57,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:57,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:57,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:57,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:57,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:57,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:57,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:56:57,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:57,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:56:57,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:57,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:57,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:57,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:57,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:57,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:57,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 07:56:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:57,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:57,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:57,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:57,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:56:57,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:57,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:57,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:57,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:57,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:57,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:57,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 07:56:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:57,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:57,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:57,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:57,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:57,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:57,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:57,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:57,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:57,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:57,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:57,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:56:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:57,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:57,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:57,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:57,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:57,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:57,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:57,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:57,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:57,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:57,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:57,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:56:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:57,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:57,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:57,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:57,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:57,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:57,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:57,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:57,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:57,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:57,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:57,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:56:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:57,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:57,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:57,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:57,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:57,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:57,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:57,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:57,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:57,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:57,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:57,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:56:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:57,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:57,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:57,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:57,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:56:57,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:57,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:57,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:57,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:57,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:57,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:57,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 07:56:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:57,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:57,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:57,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:57,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:57,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:57,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:57,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:57,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:57,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:57,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:57,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:56:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:57,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:57,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:56:57,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:57,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:57,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:57,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:57,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:57,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 07:56:57,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:56:57,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:57,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:56:57,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38093522] [2020-10-14 07:56:57,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:56:57,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:56:57,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767691728] [2020-10-14 07:56:57,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:56:57,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:57,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:56:57,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:56:57,876 INFO L87 Difference]: Start difference. First operand 3646 states and 5254 transitions. Second operand 10 states. [2020-10-14 07:56:59,095 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-14 07:57:00,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:57:00,487 INFO L93 Difference]: Finished difference Result 10536 states and 15362 transitions. [2020-10-14 07:57:00,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 07:57:00,488 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 115 [2020-10-14 07:57:00,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:57:00,527 INFO L225 Difference]: With dead ends: 10536 [2020-10-14 07:57:00,527 INFO L226 Difference]: Without dead ends: 6948 [2020-10-14 07:57:00,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:57:00,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6948 states. [2020-10-14 07:57:01,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6948 to 6946. [2020-10-14 07:57:01,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6946 states. [2020-10-14 07:57:01,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6946 states to 6946 states and 9987 transitions. [2020-10-14 07:57:01,198 INFO L78 Accepts]: Start accepts. Automaton has 6946 states and 9987 transitions. Word has length 115 [2020-10-14 07:57:01,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:57:01,199 INFO L479 AbstractCegarLoop]: Abstraction has 6946 states and 9987 transitions. [2020-10-14 07:57:01,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:57:01,200 INFO L276 IsEmpty]: Start isEmpty. Operand 6946 states and 9987 transitions. [2020-10-14 07:57:01,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-14 07:57:01,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:57:01,203 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:57:01,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:57:01,203 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:57:01,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:57:01,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1767003862, now seen corresponding path program 1 times [2020-10-14 07:57:01,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:57:01,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2128311619] [2020-10-14 07:57:01,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:57:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:01,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:01,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:01,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:01,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:06,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:06,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 07:57:06,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:57:06,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 07:57:06,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:06,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:57:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-14 07:57:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:57:06,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:06,417 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 07:57:06,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:57:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:06,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:06,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:06,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:57:06,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:06,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:57:06,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:06,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:06,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:06,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:06,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:06,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:06,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:57:06,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:06,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:06,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:06,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:57:06,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:06,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 07:57:06,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:06,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:06,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:06,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:06,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 07:57:06,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:06,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 07:57:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:06,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:06,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:06,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:57:06,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:06,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:06,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:06,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:06,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:06,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:06,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:57:06,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:06,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 07:57:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:06,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:06,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:06,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:06,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:06,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:57:06,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:06,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:06,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:06,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:06,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:06,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:06,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:57:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:06,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:06,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:06,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:06,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:06,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:57:06,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:06,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:06,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:06,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:06,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:06,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:06,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:57:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:06,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:06,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:06,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:06,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:06,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:57:06,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:06,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:06,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:06,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:06,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:06,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:06,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:57:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:06,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:06,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:06,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:06,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:06,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:57:06,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:06,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:06,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:06,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:06,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:06,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:06,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:57:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:06,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:06,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:06,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:06,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:06,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:57:06,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:06,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:06,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:06,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:06,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:06,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:06,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 07:57:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:06,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:06,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:06,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:06,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:06,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:57:06,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:06,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:06,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:57:06,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:57:06,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:57:06,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:06,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 07:57:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:06,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:06,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:06,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:57:06,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:06,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:06,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:06,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:06,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:06,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:57:06,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:06,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:06,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:57:06,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2128311619] [2020-10-14 07:57:06,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:57:06,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 07:57:06,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777488283] [2020-10-14 07:57:06,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 07:57:06,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:57:06,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 07:57:06,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:57:06,758 INFO L87 Difference]: Start difference. First operand 6946 states and 9987 transitions. Second operand 12 states. [2020-10-14 07:57:06,922 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-14 07:57:10,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:57:10,260 INFO L93 Difference]: Finished difference Result 20146 states and 29125 transitions. [2020-10-14 07:57:10,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 07:57:10,261 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 115 [2020-10-14 07:57:10,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:57:10,360 INFO L225 Difference]: With dead ends: 20146 [2020-10-14 07:57:10,360 INFO L226 Difference]: Without dead ends: 13258 [2020-10-14 07:57:10,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-14 07:57:10,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13258 states. [2020-10-14 07:57:11,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13258 to 13256. [2020-10-14 07:57:11,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13256 states. [2020-10-14 07:57:11,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13256 states to 13256 states and 18943 transitions. [2020-10-14 07:57:11,651 INFO L78 Accepts]: Start accepts. Automaton has 13256 states and 18943 transitions. Word has length 115 [2020-10-14 07:57:11,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:57:11,651 INFO L479 AbstractCegarLoop]: Abstraction has 13256 states and 18943 transitions. [2020-10-14 07:57:11,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 07:57:11,652 INFO L276 IsEmpty]: Start isEmpty. Operand 13256 states and 18943 transitions. [2020-10-14 07:57:11,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-14 07:57:11,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:57:11,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:57:11,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 07:57:11,655 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:57:11,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:57:11,655 INFO L82 PathProgramCache]: Analyzing trace with hash 243462510, now seen corresponding path program 1 times [2020-10-14 07:57:11,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:57:11,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1142426977] [2020-10-14 07:57:11,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:57:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:11,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:11,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:11,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:12,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:14,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:14,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 07:57:14,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:57:14,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2996 [2020-10-14 07:57:14,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:14,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:14,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:57:14,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 07:57:14,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 07:57:14,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:14,881 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 07:57:14,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:57:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:14,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:14,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:14,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:57:14,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:14,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:57:14,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:14,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:14,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:14,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:14,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:14,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:14,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:57:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:14,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:14,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:14,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:57:14,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:14,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 07:57:14,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:14,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:14,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:14,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:14,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:57:14,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:57:14,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 07:57:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:14,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:14,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:14,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:57:14,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:14,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:57:14,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:14,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:14,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:14,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:14,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:57:14,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:14,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 07:57:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:14,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:15,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:15,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:15,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:15,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:57:15,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:15,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:15,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:15,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:15,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:15,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:15,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:57:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:15,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:15,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:15,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:15,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:15,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:57:15,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:15,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:15,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:15,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:15,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:15,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:15,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:57:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:15,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:15,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:15,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:15,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:15,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:57:15,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:15,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:15,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:15,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:15,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:15,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:15,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:57:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:15,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:15,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:15,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:15,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:15,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:57:15,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:15,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:15,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:15,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:15,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:57:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:15,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:15,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:15,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:15,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:15,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:57:15,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:15,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:15,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:57:15,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:57:15,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:57:15,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:15,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:57:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:15,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:15,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:15,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:15,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:15,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:57:15,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:15,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:15,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:15,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:57:15,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:15,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:15,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 07:57:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:15,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:15,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:15,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:57:15,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:15,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:15,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:15,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:15,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:15,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:57:15,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:15,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:15,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:57:15,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1142426977] [2020-10-14 07:57:15,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:57:15,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 07:57:15,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570664056] [2020-10-14 07:57:15,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 07:57:15,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:57:15,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 07:57:15,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:57:15,352 INFO L87 Difference]: Start difference. First operand 13256 states and 18943 transitions. Second operand 12 states. [2020-10-14 07:57:15,595 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-14 07:57:16,015 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-14 07:57:19,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:57:19,966 INFO L93 Difference]: Finished difference Result 38500 states and 55273 transitions. [2020-10-14 07:57:19,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 07:57:19,967 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 115 [2020-10-14 07:57:19,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:57:20,090 INFO L225 Difference]: With dead ends: 38500 [2020-10-14 07:57:20,091 INFO L226 Difference]: Without dead ends: 25302 [2020-10-14 07:57:20,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-14 07:57:20,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25302 states. [2020-10-14 07:57:21,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25302 to 25300. [2020-10-14 07:57:21,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25300 states. [2020-10-14 07:57:21,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25300 states to 25300 states and 35883 transitions. [2020-10-14 07:57:21,763 INFO L78 Accepts]: Start accepts. Automaton has 25300 states and 35883 transitions. Word has length 115 [2020-10-14 07:57:21,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:57:21,764 INFO L479 AbstractCegarLoop]: Abstraction has 25300 states and 35883 transitions. [2020-10-14 07:57:21,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 07:57:21,764 INFO L276 IsEmpty]: Start isEmpty. Operand 25300 states and 35883 transitions. [2020-10-14 07:57:21,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-14 07:57:21,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:57:21,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:57:21,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 07:57:21,768 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:57:21,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:57:21,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1740761610, now seen corresponding path program 1 times [2020-10-14 07:57:21,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:57:21,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507169531] [2020-10-14 07:57:21,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:57:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:21,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:21,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:21,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:22,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:25,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:25,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 07:57:25,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:57:25,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3607 [2020-10-14 07:57:25,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:25,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:25,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:57:25,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 07:57:25,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 07:57:25,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:25,578 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 07:57:25,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:57:25,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:25,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:25,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:25,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:57:25,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:25,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:57:25,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:25,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:25,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:25,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:25,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:25,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:25,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:57:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:25,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:25,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:25,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:57:25,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:25,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:57:25,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:25,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:25,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:25,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:25,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 07:57:25,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:25,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 07:57:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:25,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:25,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:25,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:57:25,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:25,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:25,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:25,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:25,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:25,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:25,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:57:25,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:25,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 07:57:25,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:25,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:25,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:25,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:25,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:25,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:57:25,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:25,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:25,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:25,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:25,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:25,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:25,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:57:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:25,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:25,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:25,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:25,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:25,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:57:25,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:25,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:25,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:25,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:25,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:25,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:25,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:57:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:25,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:25,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:25,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:25,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:25,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:57:25,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:25,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:25,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:25,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:25,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:25,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:25,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:57:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:25,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:25,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:25,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:25,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:25,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:57:25,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:25,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:25,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:57:25,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:57:25,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:57:25,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:25,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 07:57:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:25,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:25,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:25,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:25,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:25,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:25,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:25,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:25,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:25,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:57:25,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:25,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:25,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:57:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:25,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:25,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:25,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:25,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:25,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:57:25,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:25,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:57:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:25,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:25,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 07:57:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:25,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:25,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:25,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:57:25,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:25,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:25,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:25,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:25,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:25,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:57:25,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:25,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:25,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:57:25,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507169531] [2020-10-14 07:57:25,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:57:25,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 07:57:25,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670247066] [2020-10-14 07:57:25,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 07:57:25,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:57:25,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 07:57:25,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:57:25,940 INFO L87 Difference]: Start difference. First operand 25300 states and 35883 transitions. Second operand 12 states. [2020-10-14 07:57:26,107 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-14 07:57:30,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:57:30,844 INFO L93 Difference]: Finished difference Result 73528 states and 104685 transitions. [2020-10-14 07:57:30,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 07:57:30,845 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 115 [2020-10-14 07:57:30,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:57:31,036 INFO L225 Difference]: With dead ends: 73528 [2020-10-14 07:57:31,036 INFO L226 Difference]: Without dead ends: 48286 [2020-10-14 07:57:31,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-14 07:57:31,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48286 states. [2020-10-14 07:57:35,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48286 to 48284. [2020-10-14 07:57:35,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48284 states. [2020-10-14 07:57:35,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48284 states to 48284 states and 67851 transitions. [2020-10-14 07:57:35,930 INFO L78 Accepts]: Start accepts. Automaton has 48284 states and 67851 transitions. Word has length 115 [2020-10-14 07:57:35,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:57:35,930 INFO L479 AbstractCegarLoop]: Abstraction has 48284 states and 67851 transitions. [2020-10-14 07:57:35,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 07:57:35,930 INFO L276 IsEmpty]: Start isEmpty. Operand 48284 states and 67851 transitions. [2020-10-14 07:57:35,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-14 07:57:35,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:57:35,933 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:57:35,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 07:57:35,933 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:57:35,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:57:35,934 INFO L82 PathProgramCache]: Analyzing trace with hash 12922870, now seen corresponding path program 1 times [2020-10-14 07:57:35,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:57:35,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121711857] [2020-10-14 07:57:35,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:57:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:35,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:36,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:36,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:36,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:38,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:38,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 07:57:38,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:57:38,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3014 [2020-10-14 07:57:38,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:38,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:38,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:57:38,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 07:57:38,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 07:57:38,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:39,130 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 07:57:39,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:57:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:39,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:39,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:39,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:57:39,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:39,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:57:39,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:39,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:39,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:39,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:39,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:39,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:39,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:57:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:39,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:39,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:39,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:57:39,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:39,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:57:39,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:39,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:57:39,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:39,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 07:57:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:39,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:39,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:39,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:57:39,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:39,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:39,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:39,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:39,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:39,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:39,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:57:39,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:39,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 07:57:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:39,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:39,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:39,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:39,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:39,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:57:39,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:39,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:39,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:39,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:39,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:39,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:39,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:57:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:39,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:39,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:39,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:39,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:39,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:57:39,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:39,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:39,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:57:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:57:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:57:39,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:39,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 07:57:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:39,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:39,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:39,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:39,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:39,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:39,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:39,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:39,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:39,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:57:39,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:39,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:39,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 07:57:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:39,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:39,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:39,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:39,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:39,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:39,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:39,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:39,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:39,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:57:39,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:39,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:39,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 07:57:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:39,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:39,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:39,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:39,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:39,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:57:39,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:39,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:57:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:39,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:39,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:57:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:39,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:39,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:39,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:39,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:39,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:39,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:39,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:39,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:39,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:57:39,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:39,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:39,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 07:57:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:39,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:39,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:39,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:57:39,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:39,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:39,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:39,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:39,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:39,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:57:39,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:39,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:39,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:57:39,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121711857] [2020-10-14 07:57:39,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:57:39,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 07:57:39,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873992385] [2020-10-14 07:57:39,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 07:57:39,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:57:39,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 07:57:39,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:57:39,435 INFO L87 Difference]: Start difference. First operand 48284 states and 67851 transitions. Second operand 12 states. [2020-10-14 07:57:39,618 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-14 07:57:47,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:57:47,902 INFO L93 Difference]: Finished difference Result 140416 states and 197869 transitions. [2020-10-14 07:57:47,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 07:57:47,903 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 115 [2020-10-14 07:57:47,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:57:48,207 INFO L225 Difference]: With dead ends: 140416 [2020-10-14 07:57:48,207 INFO L226 Difference]: Without dead ends: 92190 [2020-10-14 07:57:48,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-14 07:57:48,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92190 states. [2020-10-14 07:57:55,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92190 to 92188. [2020-10-14 07:57:55,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92188 states. [2020-10-14 07:57:55,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92188 states to 92188 states and 128059 transitions. [2020-10-14 07:57:55,889 INFO L78 Accepts]: Start accepts. Automaton has 92188 states and 128059 transitions. Word has length 115 [2020-10-14 07:57:55,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:57:55,890 INFO L479 AbstractCegarLoop]: Abstraction has 92188 states and 128059 transitions. [2020-10-14 07:57:55,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 07:57:55,890 INFO L276 IsEmpty]: Start isEmpty. Operand 92188 states and 128059 transitions. [2020-10-14 07:57:55,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-14 07:57:55,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:57:55,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:57:55,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 07:57:55,892 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:57:55,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:57:55,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1957597138, now seen corresponding path program 1 times [2020-10-14 07:57:55,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:57:55,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668705556] [2020-10-14 07:57:55,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:57:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:55,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:55,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:56,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:56,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:00,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:00,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 07:58:00,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:58:00,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4881 [2020-10-14 07:58:00,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:00,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:00,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:58:00,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 07:58:00,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 07:58:00,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:00,957 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 07:58:00,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:58:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:00,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:00,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:00,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:58:00,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:00,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:58:00,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:00,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:00,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:58:00,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:00,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:58:00,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:00,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:58:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:00,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:00,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:00,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:58:00,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:00,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:58:00,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:00,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:00,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:58:00,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:00,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:58:00,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:00,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 07:58:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:00,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:00,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:00,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:58:00,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:00,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:58:00,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:00,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:58:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:58:00,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:01,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 07:58:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:01,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:01,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:01,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:58:01,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:01,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:58:01,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:01,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:01,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:58:01,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:58:01,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:58:01,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:01,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 07:58:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:01,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:01,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:01,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:58:01,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:01,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:58:01,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:01,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:01,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:58:01,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:58:01,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:58:01,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:58:01,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 07:58:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:01,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:01,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:01,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:58:01,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:01,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:58:01,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:01,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:01,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:58:01,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:58:01,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:58:01,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:01,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 07:58:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:01,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:01,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:01,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:58:01,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:01,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:58:01,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:01,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:01,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:58:01,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:58:01,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:58:01,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:01,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 07:58:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:01,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:01,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:01,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:58:01,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:01,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:58:01,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:01,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:01,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:58:01,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:58:01,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:58:01,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:01,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:58:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:01,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:01,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:01,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:58:01,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:01,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:58:01,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:01,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:01,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:58:01,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:58:01,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:58:01,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:01,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 07:58:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:01,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:01,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:01,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:58:01,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:01,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:58:01,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:01,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:01,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:58:01,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:58:01,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:58:01,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:01,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:58:01,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [668705556] [2020-10-14 07:58:01,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:58:01,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 07:58:01,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305147603] [2020-10-14 07:58:01,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 07:58:01,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:58:01,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 07:58:01,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:58:01,241 INFO L87 Difference]: Start difference. First operand 92188 states and 128059 transitions. Second operand 12 states. [2020-10-14 07:58:01,421 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-14 07:58:12,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:58:12,869 INFO L93 Difference]: Finished difference Result 237632 states and 330637 transitions. [2020-10-14 07:58:12,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 07:58:12,870 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 115 [2020-10-14 07:58:12,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:58:13,337 INFO L225 Difference]: With dead ends: 237632 [2020-10-14 07:58:13,337 INFO L226 Difference]: Without dead ends: 145502 [2020-10-14 07:58:13,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2020-10-14 07:58:13,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145502 states. [2020-10-14 07:58:25,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145502 to 145500. [2020-10-14 07:58:25,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145500 states. [2020-10-14 07:58:26,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145500 states to 145500 states and 198699 transitions. [2020-10-14 07:58:26,117 INFO L78 Accepts]: Start accepts. Automaton has 145500 states and 198699 transitions. Word has length 115 [2020-10-14 07:58:26,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:58:26,118 INFO L479 AbstractCegarLoop]: Abstraction has 145500 states and 198699 transitions. [2020-10-14 07:58:26,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 07:58:26,118 INFO L276 IsEmpty]: Start isEmpty. Operand 145500 states and 198699 transitions. [2020-10-14 07:58:26,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-14 07:58:26,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:58:26,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:58:26,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 07:58:26,119 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:58:26,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:58:26,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1201603998, now seen corresponding path program 1 times [2020-10-14 07:58:26,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:58:26,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099676612] [2020-10-14 07:58:26,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:58:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:26,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:26,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:26,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-14 07:58:26,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:26,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-10-14 07:58:26,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:26,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:26,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:58:26,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 131 [2020-10-14 07:58:26,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:58:26,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:58:26,858 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 07:58:26,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:58:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:26,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:26,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:26,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:58:26,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:26,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:58:26,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:26,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:26,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:58:26,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:26,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:58:26,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:26,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:58:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:26,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:26,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:26,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:58:26,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:26,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:58:26,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:26,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:26,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:58:26,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:58:26,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:26,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 07:58:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:26,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:26,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:26,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:58:26,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:26,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:58:26,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:26,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:26,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:58:26,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:26,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:58:26,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:26,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 07:58:26,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:26,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:26,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:26,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:58:26,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:26,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:58:26,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:26,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:26,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:58:26,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:26,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:58:26,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:58:26,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:58:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:26,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:26,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:26,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:58:26,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:26,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:58:26,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:26,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:26,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:58:26,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:26,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:58:26,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:26,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:58:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:26,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:26,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:26,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:58:26,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:26,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:58:26,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:26,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:26,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:58:26,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:26,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:58:26,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:58:27,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:58:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:27,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:27,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:27,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:58:27,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:27,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:58:27,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:27,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:27,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:58:27,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:27,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:58:27,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:27,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:58:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:27,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:27,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:27,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:58:27,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:27,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:58:27,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:27,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:27,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:58:27,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:27,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:58:27,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:27,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 07:58:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:27,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:27,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:27,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:58:27,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:27,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:58:27,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:27,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:27,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:58:27,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:27,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:58:27,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:27,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:58:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:27,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:27,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:27,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:58:27,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:27,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:58:27,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:27,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:27,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:58:27,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:27,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:58:27,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:27,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:58:27,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099676612] [2020-10-14 07:58:27,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:58:27,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-14 07:58:27,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820428861] [2020-10-14 07:58:27,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 07:58:27,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:58:27,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 07:58:27,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:58:27,137 INFO L87 Difference]: Start difference. First operand 145500 states and 198699 transitions. Second operand 15 states. [2020-10-14 07:58:28,496 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-14 07:58:28,661 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-14 07:58:28,857 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-14 07:58:29,032 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:58:41,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:58:41,142 INFO L93 Difference]: Finished difference Result 164927 states and 237006 transitions. [2020-10-14 07:58:41,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 07:58:41,143 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 116 [2020-10-14 07:58:41,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:58:41,678 INFO L225 Difference]: With dead ends: 164927 [2020-10-14 07:58:41,678 INFO L226 Difference]: Without dead ends: 164925 [2020-10-14 07:58:41,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2020-10-14 07:58:41,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164925 states. [2020-10-14 07:58:52,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164925 to 151260. [2020-10-14 07:58:52,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151260 states. [2020-10-14 07:58:53,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151260 states to 151260 states and 204299 transitions. [2020-10-14 07:58:53,125 INFO L78 Accepts]: Start accepts. Automaton has 151260 states and 204299 transitions. Word has length 116 [2020-10-14 07:58:53,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:58:53,125 INFO L479 AbstractCegarLoop]: Abstraction has 151260 states and 204299 transitions. [2020-10-14 07:58:53,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 07:58:53,125 INFO L276 IsEmpty]: Start isEmpty. Operand 151260 states and 204299 transitions. [2020-10-14 07:58:53,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-14 07:58:53,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:58:53,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:58:53,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 07:58:53,127 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:58:53,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:58:53,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1445938337, now seen corresponding path program 1 times [2020-10-14 07:58:53,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:58:53,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856186761] [2020-10-14 07:58:53,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:58:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:53,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:53,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:53,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:53,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-14 07:58:53,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:58:53,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-10-14 07:58:53,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:53,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:53,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:58:53,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 07:58:53,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-14 07:58:53,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:53,679 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 07:58:53,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:58:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:53,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:53,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:53,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:58:53,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:53,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:58:53,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:53,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:53,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:58:53,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:53,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:58:53,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:53,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:58:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:53,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:53,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:53,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:58:53,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:53,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:58:53,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:53,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:53,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:58:53,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:53,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:58:53,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:53,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 07:58:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:53,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:53,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:53,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:58:53,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:53,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:58:53,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:53,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:53,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:58:53,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:53,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:58:53,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:53,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 07:58:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:53,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:53,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:53,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:58:53,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:53,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:58:53,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:53,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:53,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:58:53,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:58:53,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:58:53,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:53,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:58:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:53,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:53,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:53,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:58:53,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:53,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:58:53,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:53,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:53,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:58:53,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:53,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:58:53,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:53,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:58:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:53,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:53,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:53,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:58:53,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:53,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:58:53,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:53,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:53,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:58:53,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:53,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:58:53,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:53,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:58:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:53,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:53,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:53,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:58:53,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:53,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:58:53,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:53,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:53,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:58:53,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:53,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:58:53,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:53,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:58:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:53,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:53,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:53,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:58:53,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:53,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:58:53,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:53,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:53,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:58:53,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:53,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:58:53,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:53,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 07:58:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:53,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:53,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:53,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:58:53,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:58:53,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:58:53,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:53,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:53,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:58:53,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:58:53,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:58:53,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:58:53,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:58:53,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:58:53,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:53,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:58:53,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:58:53,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:58:53,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:58:53,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:58:53,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:58:53,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:58:53,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:58:53,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 07:58:53,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:58:53,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:58:53,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:58:53,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1856186761] [2020-10-14 07:58:53,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:58:53,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 07:58:53,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636473684] [2020-10-14 07:58:53,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 07:58:53,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:58:53,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 07:58:53,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:58:53,969 INFO L87 Difference]: Start difference. First operand 151260 states and 204299 transitions. Second operand 12 states. [2020-10-14 07:58:54,130 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-14 07:58:58,740 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-14 07:59:00,046 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2020-10-14 07:59:13,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:59:13,089 INFO L93 Difference]: Finished difference Result 342518 states and 465011 transitions. [2020-10-14 07:59:13,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-14 07:59:13,090 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 116 [2020-10-14 07:59:13,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:59:13,661 INFO L225 Difference]: With dead ends: 342518 [2020-10-14 07:59:13,661 INFO L226 Difference]: Without dead ends: 191316 [2020-10-14 07:59:13,838 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=263, Invalid=793, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 07:59:13,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191316 states.