/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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:34:34,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:34:34,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:34:34,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:34:34,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:34:34,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:34:34,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:34:34,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:34:34,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:34:34,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:34:34,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:34:34,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:34:34,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:34:34,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:34:34,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:34:34,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:34:34,892 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:34:34,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:34:34,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:34:34,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:34:34,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:34:34,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:34:34,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:34:34,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:34:34,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:34:34,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:34:34,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:34:34,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:34:34,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:34:34,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:34:34,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:34:34,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:34:34,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:34:34,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:34:34,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:34:34,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:34:34,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:34:34,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:34:34,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:34:34,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:34:34,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:34:34,914 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 [2020-10-12 18:34:34,960 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:34:34,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:34:34,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:34:34,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:34:34,965 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:34:34,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:34:34,965 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:34:34,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:34:34,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:34:34,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:34:34,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:34:34,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:34:34,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:34:34,970 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:34:34,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:34:34,970 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:34:34,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:34:34,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:34:34,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:34:34,971 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:34:34,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:34:34,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:34:34,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:34:34,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:34:34,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:34:34,972 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:34:34,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:34:34,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:34:34,973 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:34:34,973 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:34:35,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:34:35,303 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:34:35,307 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:34:35,309 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:34:35,310 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:34:35,311 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c [2020-10-12 18:34:35,388 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4ce06b329/9208dd8f46af4e2b9de1384b18b9e6ca/FLAG3a28d9d75 [2020-10-12 18:34:35,925 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:34:35,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c [2020-10-12 18:34:35,938 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4ce06b329/9208dd8f46af4e2b9de1384b18b9e6ca/FLAG3a28d9d75 [2020-10-12 18:34:36,236 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4ce06b329/9208dd8f46af4e2b9de1384b18b9e6ca [2020-10-12 18:34:36,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:34:36,248 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:34:36,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:34:36,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:34:36,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:34:36,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:34:36" (1/1) ... [2020-10-12 18:34:36,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc704b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:34:36, skipping insertion in model container [2020-10-12 18:34:36,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:34:36" (1/1) ... [2020-10-12 18:34:36,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:34:36,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:34:36,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:34:36,712 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:34:36,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:34:36,848 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:34:36,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:34:36 WrapperNode [2020-10-12 18:34:36,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:34:36,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:34:36,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:34:36,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:34:36,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:34:36" (1/1) ... [2020-10-12 18:34:36,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:34:36" (1/1) ... [2020-10-12 18:34:36,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:34:36" (1/1) ... [2020-10-12 18:34:36,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:34:36" (1/1) ... [2020-10-12 18:34:36,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:34:36" (1/1) ... [2020-10-12 18:34:36,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:34:36" (1/1) ... [2020-10-12 18:34:36,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:34:36" (1/1) ... [2020-10-12 18:34:36,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:34:36,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:34:36,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:34:36,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:34:36,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:34:36" (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 [2020-10-12 18:34:36,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:34:36,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:34:36,987 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:34:36,987 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:34:36,987 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:34:36,988 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:34:36,988 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:34:36,988 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:34:36,988 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:34:36,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:34:36,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:34:36,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:34:36,989 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:34:36,989 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:34:36,989 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:34:36,989 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:34:36,989 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:34:36,990 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:34:36,990 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:34:36,990 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:34:36,990 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:34:36,990 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:34:36,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:34:36,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:34:37,747 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:34:37,747 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:34:37,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:34:37 BoogieIcfgContainer [2020-10-12 18:34:37,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:34:37,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:34:37,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:34:37,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:34:37,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:34:36" (1/3) ... [2020-10-12 18:34:37,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794ca80b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:34:37, skipping insertion in model container [2020-10-12 18:34:37,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:34:36" (2/3) ... [2020-10-12 18:34:37,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794ca80b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:34:37, skipping insertion in model container [2020-10-12 18:34:37,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:34:37" (3/3) ... [2020-10-12 18:34:37,762 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.4.ufo.BOUNDED-6.pals.c [2020-10-12 18:34:37,774 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:34:37,782 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:34:37,798 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:34:37,825 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:34:37,826 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:34:37,826 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:34:37,826 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:34:37,826 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:34:37,827 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:34:37,827 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:34:37,827 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:34:37,851 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2020-10-12 18:34:37,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-12 18:34:37,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:34:37,864 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] [2020-10-12 18:34:37,864 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:34:37,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:34:37,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1364421405, now seen corresponding path program 1 times [2020-10-12 18:34:37,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:34:37,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072111326] [2020-10-12 18:34:37,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:34:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:38,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:38,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:38,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 18:34:38,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:38,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-10-12 18:34:38,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:38,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:38,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-12 18:34:38,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:38,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 18:34:38,838 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:34:38,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:34:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:38,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:38,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:38,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:34:38,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:38,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 18:34:38,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:38,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:38,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:34:38,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:38,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:38,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:34:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:38,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:38,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:38,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 18:34:38,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:38,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 18:34:38,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:38,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:38,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:34:38,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:38,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:38,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:34:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:39,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:39,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:39,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:39,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:39,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:34:39,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:39,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:39,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:34:39,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:39,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:34:39,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 18:34:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:39,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:39,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:39,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:39,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:39,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:34:39,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:39,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:39,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:34:39,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:39,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:34:39,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-12 18:34:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:39,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:39,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:39,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:39,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:39,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:34:39,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:39,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:39,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:34:39,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:39,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 18:34:39,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 18:34:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:39,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:39,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:39,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:39,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:39,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:34:39,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:39,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:39,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:34:39,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:39,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:34:39,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:34:39,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072111326] [2020-10-12 18:34:39,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:34:39,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 18:34:39,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103391465] [2020-10-12 18:34:39,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 18:34:39,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:34:39,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 18:34:39,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 18:34:39,186 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 6 states. [2020-10-12 18:34:40,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:34:40,190 INFO L93 Difference]: Finished difference Result 258 states and 411 transitions. [2020-10-12 18:34:40,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 18:34:40,192 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-10-12 18:34:40,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:34:40,211 INFO L225 Difference]: With dead ends: 258 [2020-10-12 18:34:40,212 INFO L226 Difference]: Without dead ends: 162 [2020-10-12 18:34:40,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:34:40,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-12 18:34:40,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 150. [2020-10-12 18:34:40,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-12 18:34:40,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 243 transitions. [2020-10-12 18:34:40,277 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 243 transitions. Word has length 58 [2020-10-12 18:34:40,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:34:40,278 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 243 transitions. [2020-10-12 18:34:40,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 18:34:40,278 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 243 transitions. [2020-10-12 18:34:40,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-12 18:34:40,281 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:34:40,281 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] [2020-10-12 18:34:40,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:34:40,282 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:34:40,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:34:40,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1292034847, now seen corresponding path program 1 times [2020-10-12 18:34:40,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:34:40,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839125587] [2020-10-12 18:34:40,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:34:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:40,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:40,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:40,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 18:34:40,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:40,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 481 [2020-10-12 18:34:40,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:40,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:34:40,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-12 18:34:40,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:34:40,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:41,025 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:34:41,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:34:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:41,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:41,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:41,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:34:41,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:41,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:34:41,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:34:41,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:41,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:41,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:34:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:41,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:41,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:41,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 18:34:41,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:41,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 18:34:41,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:41,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:34:41,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:34:41,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 18:34:41,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:41,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:34:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:41,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:41,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:41,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:41,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:41,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:34:41,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:41,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:41,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:34:41,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:41,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:41,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 18:34:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:41,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:41,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:41,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:41,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:41,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:34:41,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:41,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:41,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:34:41,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:41,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:41,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-12 18:34:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:41,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:41,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:41,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:41,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:41,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:34:41,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:41,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:41,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:34:41,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:41,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:41,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 18:34:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:41,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:41,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:41,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:41,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:41,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:34:41,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:41,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:41,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:34:41,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:41,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:41,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:34:41,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1839125587] [2020-10-12 18:34:41,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:34:41,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:34:41,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676201576] [2020-10-12 18:34:41,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:34:41,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:34:41,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:34:41,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:34:41,271 INFO L87 Difference]: Start difference. First operand 150 states and 243 transitions. Second operand 10 states. [2020-10-12 18:34:41,676 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:34:41,865 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:34:43,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:34:43,126 INFO L93 Difference]: Finished difference Result 262 states and 414 transitions. [2020-10-12 18:34:43,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 18:34:43,127 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2020-10-12 18:34:43,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:34:43,134 INFO L225 Difference]: With dead ends: 262 [2020-10-12 18:34:43,134 INFO L226 Difference]: Without dead ends: 171 [2020-10-12 18:34:43,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:34:43,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-12 18:34:43,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 150. [2020-10-12 18:34:43,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-12 18:34:43,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2020-10-12 18:34:43,181 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 216 transitions. Word has length 58 [2020-10-12 18:34:43,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:34:43,181 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 216 transitions. [2020-10-12 18:34:43,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:34:43,182 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 216 transitions. [2020-10-12 18:34:43,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-12 18:34:43,193 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:34:43,193 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] [2020-10-12 18:34:43,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:34:43,194 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:34:43,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:34:43,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1402954698, now seen corresponding path program 1 times [2020-10-12 18:34:43,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:34:43,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398045948] [2020-10-12 18:34:43,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:34:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:43,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:43,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:43,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:45,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:48,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:48,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 18:34:48,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:34:48,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 18:34:48,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:48,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:34:48,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:34:48,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 18:34:48,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:34:48,437 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:34:48,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:34:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:48,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:48,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:48,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:34:48,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:48,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:34:48,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:48,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:48,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:34:48,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:48,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:48,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:34:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:48,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:48,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:48,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:34:48,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:48,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 18:34:48,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:48,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:34:48,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:34:48,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:34:48,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:48,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:34:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:48,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:48,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:48,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:48,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:48,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:34:48,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:48,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:34:48,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:34:48,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:34:48,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:34:48,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:34:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:48,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:48,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:48,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:48,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:48,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:34:48,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:48,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:34:48,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:34:48,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:34:48,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:48,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:34:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:48,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:48,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:48,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:48,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:48,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:34:48,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:48,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:34:48,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:34:48,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:34:48,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:48,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:34:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:48,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:48,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:48,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:48,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:48,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:34:48,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:34:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:34:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:34:48,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:34:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:34:48,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398045948] [2020-10-12 18:34:48,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:34:48,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:34:48,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839172897] [2020-10-12 18:34:48,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:34:48,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:34:48,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:34:48,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:34:48,838 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. Second operand 13 states. [2020-10-12 18:34:49,061 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:34:49,430 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:34:49,581 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:34:51,200 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:34:51,329 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:34:51,483 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:34:54,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:34:54,230 INFO L93 Difference]: Finished difference Result 820 states and 1253 transitions. [2020-10-12 18:34:54,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-12 18:34:54,231 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 84 [2020-10-12 18:34:54,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:34:54,241 INFO L225 Difference]: With dead ends: 820 [2020-10-12 18:34:54,241 INFO L226 Difference]: Without dead ends: 735 [2020-10-12 18:34:54,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 694 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=567, Invalid=1883, Unknown=0, NotChecked=0, Total=2450 [2020-10-12 18:34:54,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2020-10-12 18:34:54,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 639. [2020-10-12 18:34:54,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2020-10-12 18:34:54,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 977 transitions. [2020-10-12 18:34:54,306 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 977 transitions. Word has length 84 [2020-10-12 18:34:54,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:34:54,307 INFO L479 AbstractCegarLoop]: Abstraction has 639 states and 977 transitions. [2020-10-12 18:34:54,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:34:54,307 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 977 transitions. [2020-10-12 18:34:54,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 18:34:54,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:34:54,310 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] [2020-10-12 18:34:54,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:34:54,311 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:34:54,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:34:54,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1236714189, now seen corresponding path program 1 times [2020-10-12 18:34:54,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:34:54,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995844799] [2020-10-12 18:34:54,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:34:54,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:54,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:54,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:54,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:54,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:55,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:59,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:59,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 18:34:59,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:34:59,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 18:34:59,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:59,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:34:59,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 18:34:59,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 18:34:59,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:59,544 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:34:59,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:34:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:59,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:59,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:59,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:34:59,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:59,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:34:59,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:59,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:59,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:34:59,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:59,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:59,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:34:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:59,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:59,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:59,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:34:59,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:59,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-12 18:34:59,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:59,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:34:59,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:34:59,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 18:34:59,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:59,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:34:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:59,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:59,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:59,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:59,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:59,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:34:59,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:59,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:34:59,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:34:59,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:34:59,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:59,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:34:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:59,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:59,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:59,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:59,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:59,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:34:59,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:59,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:34:59,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:34:59,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:34:59,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:59,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:34:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:59,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:59,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:59,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:59,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:59,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:34:59,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:59,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:34:59,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:34:59,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:34:59,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:34:59,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:34:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:59,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:59,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:59,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:34:59,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:59,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:34:59,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:59,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:34:59,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:34:59,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:34:59,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:59,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:34:59,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1995844799] [2020-10-12 18:34:59,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:34:59,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:34:59,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293629831] [2020-10-12 18:34:59,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:34:59,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:34:59,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:34:59,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:34:59,974 INFO L87 Difference]: Start difference. First operand 639 states and 977 transitions. Second operand 14 states. [2020-10-12 18:35:00,178 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:35:00,710 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:35:00,869 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:35:01,027 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:35:02,371 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:35:02,538 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:35:02,718 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:35:02,893 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:35:05,693 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:35:05,903 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:35:08,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:35:08,540 INFO L93 Difference]: Finished difference Result 3367 states and 5285 transitions. [2020-10-12 18:35:08,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-10-12 18:35:08,543 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 85 [2020-10-12 18:35:08,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:35:08,576 INFO L225 Difference]: With dead ends: 3367 [2020-10-12 18:35:08,576 INFO L226 Difference]: Without dead ends: 2793 [2020-10-12 18:35:08,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1522 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=957, Invalid=3735, Unknown=0, NotChecked=0, Total=4692 [2020-10-12 18:35:08,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2020-10-12 18:35:08,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 1957. [2020-10-12 18:35:08,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1957 states. [2020-10-12 18:35:08,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 3075 transitions. [2020-10-12 18:35:08,782 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 3075 transitions. Word has length 85 [2020-10-12 18:35:08,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:35:08,784 INFO L479 AbstractCegarLoop]: Abstraction has 1957 states and 3075 transitions. [2020-10-12 18:35:08,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:35:08,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 3075 transitions. [2020-10-12 18:35:08,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-12 18:35:08,787 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:35:08,787 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] [2020-10-12 18:35:08,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:35:08,788 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:35:08,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:35:08,788 INFO L82 PathProgramCache]: Analyzing trace with hash -429910643, now seen corresponding path program 1 times [2020-10-12 18:35:08,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:35:08,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677660000] [2020-10-12 18:35:08,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:35:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:08,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:08,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:08,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:09,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:09,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:13,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:13,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-12 18:35:13,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:35:13,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-12 18:35:13,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:35:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:35:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 18:35:13,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:14,018 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:35:14,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:35:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:14,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:14,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:14,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:35:14,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:14,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:35:14,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:14,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:14,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:14,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:14,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:14,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:35:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:14,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:14,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:14,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:35:14,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:14,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 18:35:14,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:14,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:14,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:14,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 18:35:14,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:14,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:35:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:14,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:14,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:14,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:14,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:14,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:35:14,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:14,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:14,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:14,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:14,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:14,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:35:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:14,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:14,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:14,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:14,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:14,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:35:14,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:14,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:14,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:14,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:14,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:14,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:35:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:14,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:14,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:14,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:14,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:14,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:35:14,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:14,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:14,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:14,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:14,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:14,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:35:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:14,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:14,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:14,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:35:14,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:14,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:35:14,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:14,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:35:14,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:35:14,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:35:14,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:14,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:35:14,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677660000] [2020-10-12 18:35:14,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:35:14,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:35:14,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668577970] [2020-10-12 18:35:14,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:35:14,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:35:14,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:35:14,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:35:14,389 INFO L87 Difference]: Start difference. First operand 1957 states and 3075 transitions. Second operand 14 states. [2020-10-12 18:35:14,616 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:35:15,063 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:35:15,229 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:35:15,397 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:35:16,643 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:35:17,679 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:35:17,857 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:35:18,009 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:35:18,218 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:35:18,386 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:35:21,180 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2020-10-12 18:35:23,397 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:35:23,636 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:35:26,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:35:26,373 INFO L93 Difference]: Finished difference Result 6192 states and 9932 transitions. [2020-10-12 18:35:26,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-10-12 18:35:26,374 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 86 [2020-10-12 18:35:26,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:35:26,404 INFO L225 Difference]: With dead ends: 6192 [2020-10-12 18:35:26,404 INFO L226 Difference]: Without dead ends: 4323 [2020-10-12 18:35:26,414 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2442 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1291, Invalid=5515, Unknown=0, NotChecked=0, Total=6806 [2020-10-12 18:35:26,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4323 states. [2020-10-12 18:35:26,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4323 to 3301. [2020-10-12 18:35:26,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3301 states. [2020-10-12 18:35:26,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3301 states to 3301 states and 5221 transitions. [2020-10-12 18:35:26,671 INFO L78 Accepts]: Start accepts. Automaton has 3301 states and 5221 transitions. Word has length 86 [2020-10-12 18:35:26,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:35:26,672 INFO L479 AbstractCegarLoop]: Abstraction has 3301 states and 5221 transitions. [2020-10-12 18:35:26,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:35:26,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3301 states and 5221 transitions. [2020-10-12 18:35:26,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-12 18:35:26,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:35:26,674 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] [2020-10-12 18:35:26,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:35:26,675 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:35:26,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:35:26,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1240489430, now seen corresponding path program 1 times [2020-10-12 18:35:26,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:35:26,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096646992] [2020-10-12 18:35:26,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:35:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:26,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:26,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:26,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:27,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:27,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:31,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:31,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 18:35:31,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:35:31,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:35:31,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:31,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:35:31,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:35:31,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-12 18:35:31,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:31,897 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:35:31,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:35:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:31,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:31,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:31,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:35:31,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:31,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:35:31,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:31,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:31,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:31,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:31,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:31,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:35:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:31,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:31,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:31,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:35:31,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:31,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 18:35:31,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:31,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:31,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:31,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 18:35:31,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:32,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:35:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:32,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:32,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:32,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:32,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:32,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:35:32,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:32,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:32,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:32,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:32,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:32,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:35:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:32,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:32,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:32,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:32,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:32,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:35:32,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:32,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:32,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:32,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:32,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:35:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:32,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:32,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:32,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:32,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:32,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:35:32,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:32,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:32,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:32,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:32,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:32,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:35:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:32,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:32,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:32,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:35:32,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:32,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:35:32,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:32,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:35:32,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:35:32,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:35:32,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:32,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:35:32,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096646992] [2020-10-12 18:35:32,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:35:32,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:35:32,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460088028] [2020-10-12 18:35:32,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:35:32,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:35:32,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:35:32,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:35:32,218 INFO L87 Difference]: Start difference. First operand 3301 states and 5221 transitions. Second operand 14 states. [2020-10-12 18:35:32,436 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:35:32,954 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:35:33,117 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:35:33,306 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:35:35,151 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:35:35,308 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:35:35,584 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:35:35,761 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:35:40,505 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:35:40,682 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:35:41,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:35:41,994 INFO L93 Difference]: Finished difference Result 13021 states and 20577 transitions. [2020-10-12 18:35:41,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-12 18:35:41,995 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 87 [2020-10-12 18:35:41,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:35:42,047 INFO L225 Difference]: With dead ends: 13021 [2020-10-12 18:35:42,047 INFO L226 Difference]: Without dead ends: 9808 [2020-10-12 18:35:42,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1458 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=957, Invalid=3735, Unknown=0, NotChecked=0, Total=4692 [2020-10-12 18:35:42,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9808 states. [2020-10-12 18:35:42,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9808 to 8458. [2020-10-12 18:35:42,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8458 states. [2020-10-12 18:35:42,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8458 states to 8458 states and 13491 transitions. [2020-10-12 18:35:42,648 INFO L78 Accepts]: Start accepts. Automaton has 8458 states and 13491 transitions. Word has length 87 [2020-10-12 18:35:42,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:35:42,652 INFO L479 AbstractCegarLoop]: Abstraction has 8458 states and 13491 transitions. [2020-10-12 18:35:42,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:35:42,652 INFO L276 IsEmpty]: Start isEmpty. Operand 8458 states and 13491 transitions. [2020-10-12 18:35:42,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-12 18:35:42,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:35:42,655 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] [2020-10-12 18:35:42,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:35:42,655 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:35:42,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:35:42,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1025816046, now seen corresponding path program 1 times [2020-10-12 18:35:42,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:35:42,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702013941] [2020-10-12 18:35:42,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:35:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:42,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:42,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:42,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:42,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:43,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:43,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:46,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:47,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:47,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 18:35:47,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:35:47,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:35:47,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:47,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:35:47,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:35:47,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-12 18:35:47,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:47,854 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:35:47,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:35:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:47,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:47,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:47,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:35:47,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:47,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:35:47,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:47,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:47,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:47,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:47,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:47,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:35:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:47,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:47,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:47,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:35:47,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:47,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 18:35:47,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:47,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:35:47,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:47,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:35:47,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:47,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:35:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:47,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:47,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:47,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:47,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:47,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:35:47,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:47,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:48,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:35:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:48,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:48,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:48,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:48,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:48,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:35:48,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:48,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:48,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:48,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:48,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:48,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:35:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:48,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:48,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:48,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:35:48,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:48,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:35:48,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:48,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:35:48,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:48,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:48,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:48,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:35:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:48,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:48,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:48,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:48,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:48,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:35:48,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:48,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:35:48,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:35:48,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:35:48,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:48,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:35:48,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702013941] [2020-10-12 18:35:48,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:35:48,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:35:48,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527293523] [2020-10-12 18:35:48,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:35:48,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:35:48,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:35:48,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:35:48,193 INFO L87 Difference]: Start difference. First operand 8458 states and 13491 transitions. Second operand 13 states. [2020-10-12 18:35:48,732 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 150 [2020-10-12 18:35:49,448 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:35:49,679 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:35:49,953 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-12 18:35:50,417 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-10-12 18:35:50,768 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:35:51,692 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:35:52,379 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:35:52,658 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:35:54,788 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-12 18:35:56,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:35:56,803 INFO L93 Difference]: Finished difference Result 14934 states and 23885 transitions. [2020-10-12 18:35:56,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-12 18:35:56,804 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 87 [2020-10-12 18:35:56,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:35:56,891 INFO L225 Difference]: With dead ends: 14934 [2020-10-12 18:35:56,891 INFO L226 Difference]: Without dead ends: 9608 [2020-10-12 18:35:56,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=453, Invalid=1527, Unknown=0, NotChecked=0, Total=1980 [2020-10-12 18:35:56,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9608 states. [2020-10-12 18:35:57,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9608 to 8233. [2020-10-12 18:35:57,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8233 states. [2020-10-12 18:35:57,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8233 states to 8233 states and 13120 transitions. [2020-10-12 18:35:57,974 INFO L78 Accepts]: Start accepts. Automaton has 8233 states and 13120 transitions. Word has length 87 [2020-10-12 18:35:57,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:35:57,975 INFO L479 AbstractCegarLoop]: Abstraction has 8233 states and 13120 transitions. [2020-10-12 18:35:57,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:35:57,975 INFO L276 IsEmpty]: Start isEmpty. Operand 8233 states and 13120 transitions. [2020-10-12 18:35:57,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-12 18:35:57,979 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:35:57,979 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] [2020-10-12 18:35:57,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:35:57,980 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:35:57,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:35:57,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1286022490, now seen corresponding path program 1 times [2020-10-12 18:35:57,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:35:57,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343919947] [2020-10-12 18:35:57,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:35:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:58,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:58,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:58,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:58,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:58,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:58,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:02,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:03,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:03,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 18:36:03,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:36:03,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:36:03,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:03,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:36:03,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 18:36:03,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 18:36:03,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:03,191 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:36:03,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:36:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:03,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:03,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:03,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:36:03,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:03,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:36:03,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:03,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:03,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:03,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:03,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:03,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:36:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:03,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:03,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:03,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:36:03,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:03,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 18:36:03,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:03,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:36:03,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:03,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:36:03,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:03,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:36:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:03,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:03,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:03,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:36:03,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:03,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:36:03,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:36:03,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:03,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:03,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:03,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 18:36:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:03,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:03,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:03,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:03,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:03,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:36:03,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:03,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:03,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:03,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:03,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:03,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:36:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:03,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:03,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:03,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:03,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:03,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:36:03,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:03,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:03,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:03,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:03,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:03,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:36:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:03,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:03,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:03,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:03,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:03,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:36:03,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:03,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:03,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:36:03,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:36:03,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:03,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:36:03,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343919947] [2020-10-12 18:36:03,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:36:03,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:36:03,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896976063] [2020-10-12 18:36:03,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:36:03,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:36:03,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:36:03,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:36:03,639 INFO L87 Difference]: Start difference. First operand 8233 states and 13120 transitions. Second operand 13 states. [2020-10-12 18:36:03,890 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:36:04,331 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:36:04,500 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:36:05,092 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-12 18:36:05,625 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-12 18:36:05,807 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-12 18:36:05,968 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-10-12 18:36:06,650 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 151 [2020-10-12 18:36:07,316 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-10-12 18:36:07,443 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-12 18:36:07,860 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2020-10-12 18:36:08,017 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-12 18:36:08,493 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2020-10-12 18:36:08,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:36:08,996 INFO L93 Difference]: Finished difference Result 14449 states and 22923 transitions. [2020-10-12 18:36:08,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 18:36:08,996 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 87 [2020-10-12 18:36:08,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:36:09,038 INFO L225 Difference]: With dead ends: 14449 [2020-10-12 18:36:09,038 INFO L226 Difference]: Without dead ends: 10955 [2020-10-12 18:36:09,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=248, Invalid=744, Unknown=0, NotChecked=0, Total=992 [2020-10-12 18:36:09,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10955 states. [2020-10-12 18:36:09,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10955 to 9564. [2020-10-12 18:36:09,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9564 states. [2020-10-12 18:36:09,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9564 states to 9564 states and 15258 transitions. [2020-10-12 18:36:09,991 INFO L78 Accepts]: Start accepts. Automaton has 9564 states and 15258 transitions. Word has length 87 [2020-10-12 18:36:09,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:36:09,991 INFO L479 AbstractCegarLoop]: Abstraction has 9564 states and 15258 transitions. [2020-10-12 18:36:09,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:36:09,991 INFO L276 IsEmpty]: Start isEmpty. Operand 9564 states and 15258 transitions. [2020-10-12 18:36:09,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-12 18:36:09,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:36:09,995 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] [2020-10-12 18:36:09,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:36:09,996 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:36:09,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:36:09,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1864649431, now seen corresponding path program 1 times [2020-10-12 18:36:09,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:36:09,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73118706] [2020-10-12 18:36:09,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:36:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:10,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:10,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:10,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:10,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:10,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:10,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:12,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:12,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:15,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:15,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-12 18:36:15,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:36:15,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:36:15,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:15,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:36:15,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 18:36:15,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-12 18:36:15,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:15,195 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:36:15,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:36:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:15,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:15,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:15,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:36:15,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:15,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:36:15,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:15,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:15,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:36:15,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:15,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:15,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:15,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:36:15,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:15,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 18:36:15,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:15,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:36:15,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:15,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 18:36:15,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:15,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:36:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:15,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:15,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:15,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:15,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:15,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:36:15,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:15,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:15,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:15,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:15,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:15,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:36:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:15,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:15,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:15,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:15,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:15,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:36:15,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:15,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:15,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:15,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:15,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:15,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:36:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:15,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:15,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:15,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:36:15,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:15,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:36:15,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:15,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:36:15,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:15,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:15,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:15,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:36:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:15,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:15,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:15,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:36:15,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:15,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:36:15,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:15,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:36:15,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:36:15,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:36:15,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:15,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:36:15,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73118706] [2020-10-12 18:36:15,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:36:15,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:36:15,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575091161] [2020-10-12 18:36:15,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:36:15,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:36:15,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:36:15,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:36:15,501 INFO L87 Difference]: Start difference. First operand 9564 states and 15258 transitions. Second operand 14 states. [2020-10-12 18:36:15,703 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:36:16,276 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:36:16,457 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:36:17,785 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2020-10-12 18:36:18,352 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 150 [2020-10-12 18:36:18,745 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 152 [2020-10-12 18:36:18,914 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:36:19,105 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:36:19,281 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:36:19,544 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:36:19,811 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:36:20,721 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2020-10-12 18:36:21,185 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2020-10-12 18:36:22,455 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-12 18:36:22,941 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:36:23,244 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2020-10-12 18:36:24,167 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:36:27,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:36:27,414 INFO L93 Difference]: Finished difference Result 24537 states and 39088 transitions. [2020-10-12 18:36:27,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-10-12 18:36:27,415 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 88 [2020-10-12 18:36:27,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:36:27,512 INFO L225 Difference]: With dead ends: 24537 [2020-10-12 18:36:27,512 INFO L226 Difference]: Without dead ends: 18411 [2020-10-12 18:36:27,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2029 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=1099, Invalid=5063, Unknown=0, NotChecked=0, Total=6162 [2020-10-12 18:36:27,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18411 states. [2020-10-12 18:36:28,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18411 to 15062. [2020-10-12 18:36:28,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15062 states. [2020-10-12 18:36:28,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15062 states to 15062 states and 24075 transitions. [2020-10-12 18:36:28,692 INFO L78 Accepts]: Start accepts. Automaton has 15062 states and 24075 transitions. Word has length 88 [2020-10-12 18:36:28,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:36:28,692 INFO L479 AbstractCegarLoop]: Abstraction has 15062 states and 24075 transitions. [2020-10-12 18:36:28,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:36:28,692 INFO L276 IsEmpty]: Start isEmpty. Operand 15062 states and 24075 transitions. [2020-10-12 18:36:28,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-12 18:36:28,695 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:36:28,695 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] [2020-10-12 18:36:28,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:36:28,696 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:36:28,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:36:28,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1600064148, now seen corresponding path program 1 times [2020-10-12 18:36:28,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:36:28,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839305174] [2020-10-12 18:36:28,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:36:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:28,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:28,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:28,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:28,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:28,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:28,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:31,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:31,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:33,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:33,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-12 18:36:33,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:36:33,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:36:33,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:36:33,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-12 18:36:33,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 18:36:33,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:33,875 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:36:33,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:36:33,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:33,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:33,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:33,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:36:33,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:33,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:36:33,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:33,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:33,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:36:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:33,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:33,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:33,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:36:33,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:33,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:36:33,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:33,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:36:33,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:33,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 18:36:33,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:33,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:36:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:33,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:33,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:33,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:33,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:33,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:36:33,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:33,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:33,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:33,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:33,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:34,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:36:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:34,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:34,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:34,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:36:34,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:34,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:36:34,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:36:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:34,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:34,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:36:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:34,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:34,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:34,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:34,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:34,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:36:34,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:34,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:34,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:34,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:34,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:34,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:36:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:34,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:34,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:34,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:36:34,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:34,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:36:34,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:34,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:36:34,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:36:34,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:36:34,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:34,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:36:34,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1839305174] [2020-10-12 18:36:34,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:36:34,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:36:34,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165715580] [2020-10-12 18:36:34,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:36:34,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:36:34,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:36:34,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:36:34,147 INFO L87 Difference]: Start difference. First operand 15062 states and 24075 transitions. Second operand 14 states. [2020-10-12 18:36:34,349 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:36:34,883 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:36:35,037 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:36:36,437 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 150 [2020-10-12 18:36:37,100 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:36:37,765 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:36:38,102 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 152 [2020-10-12 18:36:38,313 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:36:38,566 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:36:38,813 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:36:40,100 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2020-10-12 18:36:40,402 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2020-10-12 18:36:42,192 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2020-10-12 18:36:42,482 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:36:43,424 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:36:44,350 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-12 18:36:47,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:36:47,496 INFO L93 Difference]: Finished difference Result 30253 states and 48226 transitions. [2020-10-12 18:36:47,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-10-12 18:36:47,496 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 88 [2020-10-12 18:36:47,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:36:47,583 INFO L225 Difference]: With dead ends: 30253 [2020-10-12 18:36:47,583 INFO L226 Difference]: Without dead ends: 23478 [2020-10-12 18:36:47,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2015 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=1099, Invalid=5063, Unknown=0, NotChecked=0, Total=6162 [2020-10-12 18:36:47,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23478 states. [2020-10-12 18:36:48,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23478 to 19321. [2020-10-12 18:36:48,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19321 states. [2020-10-12 18:36:48,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19321 states to 19321 states and 30939 transitions. [2020-10-12 18:36:48,689 INFO L78 Accepts]: Start accepts. Automaton has 19321 states and 30939 transitions. Word has length 88 [2020-10-12 18:36:48,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:36:48,690 INFO L479 AbstractCegarLoop]: Abstraction has 19321 states and 30939 transitions. [2020-10-12 18:36:48,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:36:48,690 INFO L276 IsEmpty]: Start isEmpty. Operand 19321 states and 30939 transitions. [2020-10-12 18:36:48,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-12 18:36:48,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:36:48,693 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] [2020-10-12 18:36:48,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:36:48,693 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:36:48,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:36:48,694 INFO L82 PathProgramCache]: Analyzing trace with hash -520579643, now seen corresponding path program 1 times [2020-10-12 18:36:48,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:36:48,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132003236] [2020-10-12 18:36:48,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:36:48,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:48,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:48,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:48,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:48,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:48,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:48,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:49,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-12 18:36:53,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:36:53,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 18:36:53,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:36:53,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-12 18:36:53,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:36:53,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:53,888 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:36:53,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:36:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:53,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:36:53,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:53,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:36:53,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:53,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:53,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:53,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:53,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:36:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:53,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:36:53,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:53,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:36:53,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:53,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:53,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 18:36:53,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:53,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:36:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:53,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:36:53,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:53,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:36:53,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:36:53,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:53,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:36:53,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:54,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 18:36:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:54,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:54,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:54,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:54,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:54,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:36:54,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:54,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:54,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:54,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:54,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:54,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:36:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:54,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:54,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:54,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:54,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:54,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:36:54,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:54,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:54,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:54,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:54,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:54,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:36:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:54,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:54,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:54,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:36:54,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:54,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:36:54,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:54,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:54,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:36:54,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:54,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:54,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:36:54,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132003236] [2020-10-12 18:36:54,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:36:54,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 18:36:54,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574936883] [2020-10-12 18:36:54,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:36:54,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:36:54,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:36:54,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:36:54,115 INFO L87 Difference]: Start difference. First operand 19321 states and 30939 transitions. Second operand 9 states. [2020-10-12 18:36:54,277 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:36:54,861 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-12 18:36:55,757 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:36:57,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:36:57,038 INFO L93 Difference]: Finished difference Result 46947 states and 74479 transitions. [2020-10-12 18:36:57,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 18:36:57,039 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-10-12 18:36:57,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:36:57,173 INFO L225 Difference]: With dead ends: 46947 [2020-10-12 18:36:57,173 INFO L226 Difference]: Without dead ends: 27707 [2020-10-12 18:36:57,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2020-10-12 18:36:57,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27707 states. [2020-10-12 18:36:59,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27707 to 23638. [2020-10-12 18:36:59,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23638 states. [2020-10-12 18:36:59,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23638 states to 23638 states and 37420 transitions. [2020-10-12 18:36:59,419 INFO L78 Accepts]: Start accepts. Automaton has 23638 states and 37420 transitions. Word has length 88 [2020-10-12 18:36:59,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:36:59,420 INFO L479 AbstractCegarLoop]: Abstraction has 23638 states and 37420 transitions. [2020-10-12 18:36:59,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:36:59,420 INFO L276 IsEmpty]: Start isEmpty. Operand 23638 states and 37420 transitions. [2020-10-12 18:36:59,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 18:36:59,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:36:59,422 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] [2020-10-12 18:36:59,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 18:36:59,423 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:36:59,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:36:59,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1571566086, now seen corresponding path program 1 times [2020-10-12 18:36:59,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:36:59,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319878475] [2020-10-12 18:36:59,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:36:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:59,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:59,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:59,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:59,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:59,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:59,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:59,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:01,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:01,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:04,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:04,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 18:37:04,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 18:37:04,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:37:04,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:04,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:37:04,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:37:04,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 18:37:04,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:04,630 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:37:04,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:37:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:04,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:04,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:04,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:37:04,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:04,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:37:04,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:04,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:04,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:04,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:04,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:04,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:37:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:04,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:04,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:04,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:37:04,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:04,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:37:04,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:04,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:37:04,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:04,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 18:37:04,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:04,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:37:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:04,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:04,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:04,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:37:04,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:04,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:37:04,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:04,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:04,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:04,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:37:04,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:04,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:37:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:04,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:04,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:04,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:04,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:04,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:37:04,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:04,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:04,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:04,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:37:04,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:04,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:37:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:04,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:04,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:04,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:04,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:04,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:37:04,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:04,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:37:04,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:04,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:37:04,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:04,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 18:37:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:04,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:04,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:04,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:37:04,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:04,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:37:04,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:04,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:37:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:37:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:37:04,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:04,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:37:04,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319878475] [2020-10-12 18:37:04,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:37:04,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:37:04,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907872290] [2020-10-12 18:37:04,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:37:04,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:37:04,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:37:04,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:37:04,922 INFO L87 Difference]: Start difference. First operand 23638 states and 37420 transitions. Second operand 14 states. [2020-10-12 18:37:05,162 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:37:05,709 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:37:05,885 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:37:07,435 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 150 [2020-10-12 18:37:07,795 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 152 [2020-10-12 18:37:07,951 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:37:08,118 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:37:08,304 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:37:08,506 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:37:08,799 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:37:09,798 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-12 18:37:11,482 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-12 18:37:11,897 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2020-10-12 18:37:13,308 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-12 18:37:13,476 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-12 18:37:13,697 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:37:14,713 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:37:15,571 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:37:19,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:37:19,272 INFO L93 Difference]: Finished difference Result 72710 states and 114919 transitions. [2020-10-12 18:37:19,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-10-12 18:37:19,274 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 91 [2020-10-12 18:37:19,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:37:19,473 INFO L225 Difference]: With dead ends: 72710 [2020-10-12 18:37:19,473 INFO L226 Difference]: Without dead ends: 53978 [2020-10-12 18:37:19,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2526 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=1261, Invalid=6049, Unknown=0, NotChecked=0, Total=7310 [2020-10-12 18:37:19,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53978 states. [2020-10-12 18:37:22,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53978 to 45259. [2020-10-12 18:37:22,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45259 states. [2020-10-12 18:37:22,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45259 states to 45259 states and 71669 transitions. [2020-10-12 18:37:22,614 INFO L78 Accepts]: Start accepts. Automaton has 45259 states and 71669 transitions. Word has length 91 [2020-10-12 18:37:22,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:37:22,614 INFO L479 AbstractCegarLoop]: Abstraction has 45259 states and 71669 transitions. [2020-10-12 18:37:22,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:37:22,614 INFO L276 IsEmpty]: Start isEmpty. Operand 45259 states and 71669 transitions. [2020-10-12 18:37:22,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 18:37:22,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:37:22,617 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] [2020-10-12 18:37:22,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 18:37:22,617 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:37:22,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:37:22,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1737518141, now seen corresponding path program 1 times [2020-10-12 18:37:22,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:37:22,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1868488471] [2020-10-12 18:37:22,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:37:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:22,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:22,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:22,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:22,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:22,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:22,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:25,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:25,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:25,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:27,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:27,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 18:37:27,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 18:37:27,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:37:27,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:27,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:37:27,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 18:37:27,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:37:27,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:27,816 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:37:27,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:37:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:27,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:27,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:27,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:37:27,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:27,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:37:27,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:27,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:27,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:27,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:27,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:27,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:37:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:27,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:27,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:27,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:37:27,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:27,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:37:27,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:37:27,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:27,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:37:27,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:27,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:27,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:27,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:37:27,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:27,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:37:27,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:27,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:27,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:27,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:37:27,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:27,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:37:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:27,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:27,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:27,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:27,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:27,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:37:27,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:27,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:37:27,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:27,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:37:27,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:27,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 18:37:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:27,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:28,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:28,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:28,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:28,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:37:28,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:28,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:28,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:28,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:37:28,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:28,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 18:37:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:28,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:28,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:28,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:37:28,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:28,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:37:28,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:28,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:28,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:37:28,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:37:28,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:28,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:37:28,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1868488471] [2020-10-12 18:37:28,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:37:28,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:37:28,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727555835] [2020-10-12 18:37:28,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:37:28,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:37:28,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:37:28,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:37:28,033 INFO L87 Difference]: Start difference. First operand 45259 states and 71669 transitions. Second operand 11 states. [2020-10-12 18:37:28,213 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:37:28,677 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:37:29,886 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 151 [2020-10-12 18:37:30,897 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:37:33,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:37:33,186 INFO L93 Difference]: Finished difference Result 89725 states and 141722 transitions. [2020-10-12 18:37:33,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 18:37:33,187 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 91 [2020-10-12 18:37:33,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:37:33,382 INFO L225 Difference]: With dead ends: 89725 [2020-10-12 18:37:33,382 INFO L226 Difference]: Without dead ends: 50894 [2020-10-12 18:37:33,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=172, Invalid=478, Unknown=0, NotChecked=0, Total=650 [2020-10-12 18:37:33,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50894 states. [2020-10-12 18:37:35,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50894 to 43940. [2020-10-12 18:37:35,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43940 states. [2020-10-12 18:37:35,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43940 states to 43940 states and 68975 transitions. [2020-10-12 18:37:35,873 INFO L78 Accepts]: Start accepts. Automaton has 43940 states and 68975 transitions. Word has length 91 [2020-10-12 18:37:35,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:37:35,874 INFO L479 AbstractCegarLoop]: Abstraction has 43940 states and 68975 transitions. [2020-10-12 18:37:35,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:37:35,874 INFO L276 IsEmpty]: Start isEmpty. Operand 43940 states and 68975 transitions. [2020-10-12 18:37:35,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-12 18:37:35,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:37:35,877 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] [2020-10-12 18:37:35,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 18:37:35,877 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:37:35,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:37:35,877 INFO L82 PathProgramCache]: Analyzing trace with hash 333953759, now seen corresponding path program 1 times [2020-10-12 18:37:35,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:37:35,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482239096] [2020-10-12 18:37:35,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:37:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:35,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:35,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:35,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:35,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:36,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:36,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:36,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:36,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:40,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:40,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 18:37:40,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:37:40,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 18:37:40,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:37:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-12 18:37:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 18:37:40,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:41,074 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:37:41,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:37:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:41,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:41,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:41,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:37:41,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:41,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:37:41,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:41,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:41,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:41,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:41,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:41,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:37:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:41,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:41,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:41,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:37:41,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:41,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:37:41,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:41,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:41,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:41,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:37:41,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:41,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:37:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:41,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:41,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:41,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:37:41,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:41,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:37:41,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:41,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:41,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:41,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:37:41,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:41,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:37:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:41,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:41,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:41,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:41,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:41,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:37:41,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:41,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:41,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:41,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:37:41,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:41,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:37:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:41,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:41,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:41,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:41,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:41,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:37:41,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:41,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:37:41,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:41,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:37:41,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:41,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 18:37:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:41,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:41,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:41,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:41,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:41,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:37:41,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:41,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:41,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:37:41,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:41,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:41,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:37:41,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482239096] [2020-10-12 18:37:41,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:37:41,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 18:37:41,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670715008] [2020-10-12 18:37:41,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:37:41,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:37:41,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:37:41,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:37:41,412 INFO L87 Difference]: Start difference. First operand 43940 states and 68975 transitions. Second operand 9 states. [2020-10-12 18:37:41,590 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:37:42,684 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-12 18:37:43,553 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:37:46,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:37:46,134 INFO L93 Difference]: Finished difference Result 112135 states and 174811 transitions. [2020-10-12 18:37:46,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 18:37:46,135 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-10-12 18:37:46,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:37:46,378 INFO L225 Difference]: With dead ends: 112135 [2020-10-12 18:37:46,378 INFO L226 Difference]: Without dead ends: 68385 [2020-10-12 18:37:46,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2020-10-12 18:37:46,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68385 states. [2020-10-12 18:37:51,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68385 to 58622. [2020-10-12 18:37:51,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58622 states. [2020-10-12 18:37:51,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58622 states to 58622 states and 91189 transitions. [2020-10-12 18:37:51,552 INFO L78 Accepts]: Start accepts. Automaton has 58622 states and 91189 transitions. Word has length 92 [2020-10-12 18:37:51,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:37:51,553 INFO L479 AbstractCegarLoop]: Abstraction has 58622 states and 91189 transitions. [2020-10-12 18:37:51,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:37:51,553 INFO L276 IsEmpty]: Start isEmpty. Operand 58622 states and 91189 transitions. [2020-10-12 18:37:51,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-12 18:37:51,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:37:51,555 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] [2020-10-12 18:37:51,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 18:37:51,556 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:37:51,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:37:51,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1388704899, now seen corresponding path program 1 times [2020-10-12 18:37:51,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:37:51,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [928027379] [2020-10-12 18:37:51,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:37:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:51,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:51,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:51,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:51,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:51,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:51,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:51,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:51,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:53,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:53,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:56,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:56,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 18:37:56,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 18:37:56,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 18:37:56,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:56,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:37:56,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:37:56,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 18:37:56,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:56,751 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:37:56,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:37:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:56,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:56,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:56,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:37:56,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:56,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:37:56,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:56,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:56,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:56,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:56,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:56,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:37:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:56,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:56,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:56,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:37:56,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:56,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:37:56,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:37:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 18:37:56,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:56,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:37:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:56,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:56,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:56,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:37:56,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:56,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:37:56,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:56,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:56,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:56,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:37:56,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:56,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:37:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:56,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:56,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:56,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:56,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:56,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:37:56,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:56,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:37:56,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:56,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:37:56,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:56,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 18:37:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:56,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:56,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:56,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:37:56,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:56,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:37:56,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:56,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:56,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:56,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:37:56,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:56,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:37:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:56,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:56,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:56,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:56,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:56,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:37:56,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:56,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:37:56,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:37:56,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:37:56,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:57,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:37:57,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [928027379] [2020-10-12 18:37:57,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:37:57,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:37:57,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563236512] [2020-10-12 18:37:57,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:37:57,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:37:57,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:37:57,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:37:57,031 INFO L87 Difference]: Start difference. First operand 58622 states and 91189 transitions. Second operand 14 states. [2020-10-12 18:37:57,231 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:37:57,792 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:37:57,972 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:37:59,038 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 150 [2020-10-12 18:37:59,200 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-12 18:37:59,815 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 152 [2020-10-12 18:38:00,328 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-12 18:38:00,951 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-12 18:38:01,224 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:38:01,868 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-12 18:38:02,880 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:38:03,091 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:38:03,264 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:38:03,465 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:38:03,698 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:38:03,873 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:38:04,068 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:38:04,281 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:38:04,512 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 153